Marvel Mystery Oil Valve Seals

I think a good fuel additive like Seafoam or Marvel Mystery Oil is more effective. The valve guide were only worn to %50 of their allowed tolerance, but I elected to have them replaced anyway. Remove the air cleaner and run the engine at a fast idle. Gas treatments are also beneficial at keeping fuel fresh when being stored. Marvel Mystery Oil (MMO) has been around as long as I can remember (and that is a long time ago). I am going to lift the front of the bike and attempt to do it right but if that fails am I looking at damaged/really stuck piston rings or valve seals?. We never had valve or ring problems. Change the oil and filter while warm. Kinda sounds like 'crap' in a lifter- Marvel mystery oil or similar. We can thank most of that to 3 things. Runs decent and always starts, I don't want to do a rebuild - adding Oil is much cheaper. Open the oil drain plug and drain some oil out and see if there is any coolant in it. You could try to flush the engine, but that has its own set of problems such as potentially turning your seals into soft goo. Marvel Mystery Oil will always have a place in my garage! I think of Marvel Mystery Oil as I do aspirin. Might need. I might use some seafoam too, but I would rather just clean the oil pan and valve cover manually because its just better that way, and then if its still dirty, then I can run some Seafoam or Marvel Mystery Oil through it. So I guess the question comes down like this: Does using an oil/gas mix in a older 4-stroke help protect the valves and valve seats? What the heck is in Marvel Mystery Oil anyway?. Oil Burning Engine with Marvel Mystery Oil. Give it a few months to clean the sludge out. $3 at AutoZone for a new one, two-minute install time, and voila! No more missing oil!. Many people in the quest for economy often use a lesser grade oil than they should. If it's been sitting for a long time it could very well be stuck rings. I use Crosman Pellgun Oil for the old Co2 rifles, as it's made for them and the pumpers. rings getting fouled up or valve stem seals need replacing. I saw a pack of block brushes for $13 from Jeg's (no shipping charges) that might clear them if Marvel Mystery Oil doesn't help. I used Marvel mystery oil and let it set on there for exactly 17 hrs. In the motor oil it is useful for cleaning out a dirty crankcase or quieting. Everyone is always 100% that its my valve stem seals and my turbos, lol maybe its both idk. 7 out of 5 stars 531. Silicone lubes are for Break Barrels, as in on the breech seal to keep it from drying out. There are dozens of techniques but one approach is to clean first with hot soapy water followed by clean white paper towels with a high detergent oil like ATF or Marvel Mystery oil. TCP is Tricresyl Phosphorous. I took some. Oil & Lubricants. So I rebent the carburetor float linkage back into its correct position, added “Marvel Mystery Oil” to the gasoline. CD-2 Oil Detergent. Look, the sludge has been there for a long while. After a few weeks, change the oil and fire it up. I have had many people ask me about what additives I use in my Model A and why I use them. It doesn't take much oil to do this, you aren't trying to fill the cylinders, only trying to get a thin layer of oil on the rings. Also, on the Marvel Mystery oil additive. I can think that this light oil will help the rings remain free, and lessen carbon build up in the grooves where the piston rings are located. 3 years is nothing, if you wanna talk about some time, let's talk Land Rover motors! soaking them in marvel mystery for months on hand just to get them to move. after check, I was told there are 3 leaks, distributor O-ring, Valve seal and oil pan gasket. It is also recommended to mix Marvel Mystery Oil into this gas or 2 stroke oil. Today, a poster observed that a lot of additive packages are gone in some number of hours. what is your experience with this stuff. (Clean the area around the plug of grit/sand/mung before opening the hole. I'm not sure modern engine technology really needs UCL anymore, as valve guide and seal technology is so much better than when Mystery Oil first came out, as is lifter technology. Try some marvel mystery. Here’s my experience with Marvel mystery oil. You can always check the progress by shining a light into the oil filler hole of the valve cover. Junky Ol' Porsche 944 Project Cars oprv brought my oil pressure back! Here’s my vacuum seal setup a quart of oil with marvel mystery oil and let the oil get. If you have rings sticking this will break them free. Please enter your desired user name, your email address and other required details in the form below. Marvel Mystery Oil and Oil Change by Bruce. getting the seals over the crankshaft and the intermediate shaft without folding under was tough. Put the block of wood on the rocker arm, and give the valve some whacks - if it sticks - use the rope trick to push it in and out. A little smoke in the morning wont hurt anybody. Run it with this mix for awhile, no extended high speeds or heavy loads and check your level frequently. Your engine will start smoking a little, this is normal and is coating the inside of the cylinder walls and valves to keep them fresh. My research indicates rings or valve seals which expand and seal as the engine warms up. I have never used an engine flush product but my old toyota has developed a valve or lifter tapping. (And of course a new fleece oil filter. oil in your fuel tank. Did not solve the problem 3) cleaned magneto of mouse nest. Open the oil drain plug and drain some oil out and see if there is any coolant in it. Electric Hydraulic Pump Power Pack Pedal Solenoid Valve Controlled 10k Psi 220v $311. Find helpful customer reviews and review ratings for CD 2 MM12R 16 oz. It contains tricresyl phosphate which improves the sloughing capacity of the oil. Meanwhile, I was using Marvel Mystery Oil in my crankcase to prevent slugging and cleaned my PCV when I noticed my oil consumption seemed to suddenly disappear. 7 out of 5 stars 531. Some use fogging oil, but we like Marvel Mystery Oil. I got a great sailboat at a bargain basement price. Then run mobil 1 going forward. - TOS-93-7 REV A Page 2 of 2-----. Application: Prevents oil breakdown caused by extreme temperatures. Are Oil Stop Leak Products A Scam Or Do They Really Work? If you've looked around a bit already, or checked some of the Amazon reviews, I'm sure you can see the huge difference in feedback. It either has to come past the rings or past the valve seals. Marvel Mystery Oil lubricates the entire fuel system, fuel pumps, fuel injectors or carburetors and the top portion of the cylinders. I was thinking of using it during my ring/cylinder break in flights now that I am up to about 10 hours, but wasn't sure. what is your experience with this stuff. I have no data, but have heard from many pilots that Marvel Mystery Oil has reduced incidences of intake valve sticking. While the car was running the mechanic added a can of Marvel Mystery Oil and within 30 seconds the car was running well and the idle was no longer erratic. he was driving his mother’s 1993 Pontiac grand prix. It came with a Yanmar 1 gm inboard and a nice Nissan Sail Pro outboard. works for me eveytime. Forward into the Past 1923 by Marvel Mystery oil , An awesome vid by our friends over there of one of the largest and fastest in the Banger world , Max over at H&H Antique. There are just to many of them out there for you to feel to naked,,, at this time. Might want to remove and clean the breather valve on the side, if it's not working, oiling will be poor. Keeps the valve stems lubes till the Viton seals break in. No real seal leaks, lol. I use 6 parts lamp oil, 1 part marvel mystery oil, 1 part lucas power steering fluid, then a dash of scented oil. Even if the Marvel Mystery Oil passes approval of the pro tech's, don't put too much hope in this curing your problem. Brand New - $1,800. Read honest and unbiased product reviews from our users. The carb needs attention. If you talk to any of the big ring manufactures they will tell you that using lubricants like WD40, ATF, Marvel Mystery Oil are bad for rings because they cannot take the high temps and will carbon up and block the flow of real oil after startup. On the last two lathes I renewed I ran 1/4 Marvel to clean it out then a load of cheap oil and then the good stuff. Marvel Mystery Oil is a product of the Marvel Oil Company, founded by Burt Pierce. I immediately changed the oil and suddenly several lifters were noisy. 1) cleaned gas tank, found many bits of plastic and debris but did not solve the issue 2) cleaned and inspected carburetor down to the float and valve. Grab yourself some full synthetic Rotella T6 or similar HDEO as the heavy duty oil has much high levels of detergent and anti-wear additives. Buy right now. I can think that this light oil will help the rings remain free, and lessen carbon build up in the grooves where the piston rings are located. Ok, so I replaced my spark plugs yesterday and one was covered in oil buildup almost closing the electrode gap, another had some starting, and a few others had some oily wet spots on the cereamic center insulator. Read honest and unbiased product reviews from our users. Best oil for Coleman lantern pumps. ) Put a teaspoon or so of 2-stroke oil (or Marvel Mystery Oil (note 1) in each cylinder via the sparkplug hole. Seadoo 4-tec Head And Valve Gasket Bolt Kit All Years And Models 130 155 215 255 260 Seadoo 4-tec - $124. Marvel Mystery Oil or engine. Follow along as championship Sprint Car owner Gary Geving tears down his engine at the end of the season and provides 30 tips to help you perform your own alcohol engine and valvetrain teardown. The front seal is out on your pump. No thanks on the MMO for me. That means your car will have more horsepower, less oil burning, better fuel mileage and smoother operating performance with compression restored and balanced across all cylinders. OVERFILL the crankcase with 2 quarts of Marvel Mystery oil and 6-8 quarts of 5/30 motor oil. For your purpose, it's basically a light oil, not too different from sewing machine oil. The use of UCL is perfectly logical and good as a preventative measure. It has dual exhaust and when running engine sooty oil comes out of the tail pipes. A product as old as the hills and twice as dusty is "Marvel Mystery oil" I have used it on engines which had little or no compression and pulled the plugs, poured the oil in the cylinders and let it sit over night. Junky Ol' Porsche 944 Project Cars oprv brought my oil pressure back! Here’s my vacuum seal setup a quart of oil with marvel mystery oil and let the oil get. Left Door Seal V864bd For 2002 1600 1602 2002tii 1974 1971 1967 1968 1969 1970. I saw a pack of block brushes for $13 from Jeg's (no shipping charges) that might clear them if Marvel Mystery Oil doesn't help. Rated 5 out of 5 by Ed66 from Step son trouble Several years ago my step son (at the time) was getting himself into a little trouble, in a part of town he should not have been in. Upon disassembly of the engine, significant evidence of detonation was found. Just an idea that you can try safely. Then checked valve adjustment, tested compression but then found out this engine has compression release in the valve train s. And old mechanics trick was to run some atf in the (cars) oil to rejuvenate drying valve guide seals and alike. Did valve seals with heads on,this saves money from taking head off engine. Then remove the fluid lines from the 4-way ball valve. after an oil/filter change. Start it up, then pour the last quart in the valve cover (hope you have an opening there), all Marvel Mystery Oil. I took some. Brake fluid or any other flavor of Snake Oil will do very little, if any, to reduce oil consumption due to worn valve seals. You do have an oil control issue, perhaps exaggerated by a breather problem forcing oil into places you don't want it to go. RESTORE Engine Restorer & Lubricant ® is the only product proven to repair worn cylinders and restore compression back to near original levels. Or simply switch to 20w50 racing oil and a quart of STP or Marvel. Thoughts? Any way to narrow it down? This is an engine that sat for 20 years, the last two on its side. The seals have cracks and chips in them due to age and wear and the only significant fix is REPLACEMENT. as for atf it may be a good cleaner but i would not run this in my oil since my oil is clean and my pan too lol rod bearing job and regular oil change should be nice and clean. (Clean the area around the plug of grit/sand/mung before opening the hole. It's not 30 oil weight though. Marvel MM13R Mystery Oil - 32 oz. If it continues to smoke and uses oil, put some MMO in the pan and run it for a little bit then change the oil and filter. I was taught to add a few ounces of Marvel Mystery Oil to the first tankful of gas to help them break in. Antique Gas Pumps, Vintage Oil Cans, Gas Signs, and more. Remove the air cleaner and run the engine at a fast idle. Fix Up Your Boat. Failure to address the problem early is a recipe for disaster and will eventually result in a bent or broken valve and the associated engine failure. ~!eaned and drained, and the lubricator should be filled with petroleum-based hydraulIc oil with a fluid viscosity of 100-200 SSU at 100°F (ISO 32/34). If you're looking to fix a bad valve seat with marvel mystery oil, well that's a mystery within itself 2002 Jeep Liberty 3. I've used Marvel Mystery Oil in cars obtained from local municipalities which were police cruisers and detective cars which had in excesses of 150,000 miles on them which were smoking out of the tailpipe, missing/fouling spark plugs and the stuff seems to work to correct those problems. I had rebuilt the head last week, lapped the valves and installed new valve seals. 4) added Marvel Mystery oil to gas and oil. Find helpful customer reviews and review ratings for CD 2 MM12R 16 oz. Re: Marvel Mystery Oil This was my pointThe seals may not take the additives in the trans fluid, or the fluids themselves. Viewing 4 posts - 1 through 4 (of 4 total) Author Posts December 6, 2010 at 9:25 am #3509 ridercoach1 […]. An alternative to the Marvel Mystery oil is to add 2 tablespoons of automatic transmission fluid to the engine oil. It would help to know which car you have because not all E-Types used valve seals (although they can be retrofitted). A certain amount of oil consumption is normal for these engines. It still runs great, so I may try the valve seals this winter while it's garaged to see if it helps in the spring when I get it out again. Just an idea that you can try safely. Marvel Mystery Oil 32 oz. Did you notice the ‘first puff’ pressure reading for each cylinder? This is usually a good indicator of the quality of the ring-to-cylinder seal. Fix Up Your Boat. I reckon some oil or additive must have eat. I use Marvel Mystery oil by the gallon. Using solvent to remove coking in piston ring grooves engine seals and gaskets. Grease is easy too. There's hope yet! Also asked him about using the Marvel Mystery Oil and he said that shouldn't have been a problem. I can only attribute this latest glitch to a lack of oil after a month's lay-up. Many intake valves also incorporate a valve stem seal to keep the oil where it belongs. Big Red 200e - smoking bad - seafoam in oil to free rings question? If this is your first visit to 3WHeeLeR WoRLD, please take a moment and look around. for every 10 gallons of fuel. I suppose I could remove the hoses from the valves and spray a liberal amount of PB into the top with the valve closed. This is my opinion, and I am not trying to sell you these products. Marvel Mystery Oil helps to increase the life of your car engine. Guess I should be thankful for that. If your lifter’s gummed up, it can sometimes help. Then use your Dental pick to lightly (not with tip) rub the base to make sure all rubber is gone. bestinflight. Trans fluid has EP additives. Just drive it, keep your eye on the oil consumption and if it's not excessive, keep driving, it will keep your exhaust from rusting from the inside out ;-) It's also a great way to get rid of tailgaters btw. In some of the 4 cylinder cars there was a drain back or check valve that was at the oil filter attachment point. spoon in the s. Also look at valve stem seals. I have also noticed the inside of my Harley gas tank looks new when my old motorcycle friend had to replace his gas tank. Marvel Mystery Oil added to oil Extra cleaners, seal. - TOS-93-7 REV A Page 2 of 2-----. Cheap too!! Bob. car oil leak repair trouble? My car (1993 Toyota camry), has slightly oil leak. My awareness of Marvel Mystery Oil being used to solve problems - like dealing with valve lifter noise - and being used to generally clean engine internals spans more than 40. It would take crank case pressure to push oil out, more that normal pressure anyway. Seafoam works pretty decent but you can also try Marvel Mystery Oil from your local auto parts place. I think "Marvel Mystery oil. If you have rings sticking this will break them free. I'm sure we all have "sludge" stories that we can. Worn oil seals from the camshaft, the crankshaft, and the oil pump sprocket seal and gasket. It will not clog the oil pump screen either , (remember that transmissions have very fine screen meshes in them, and the crankcase oil pump screen is way bigger. Oil Burning Engine with Marvel Mystery Oil. We poured 2 quarts of Marvel Mystery Oil and 1 quart of regular cheap oil into the motor and cranked it up for 1 minute. the main leak is from oil pan. I pulled off the valve cover (making a huge oily mess) and poured marvel mystery oil on the guides and replaced the Bent rods and drove it for a couple more years with it never happening again. I've used Marvel Mystery Oil in cars obtained from local municipalities which were police cruisers and detective cars which had in excesses of 150,000 miles on them which were smoking out of the tailpipe, missing/fouling spark plugs and the stuff seems to work to correct those problems. It is used as a fuel additive, oil additive, corrosion inhibitor, penetrating oil, and transmission leak stopper and seal relubricator. Look, the sludge has been there for a long while. While they do contribute to the problem, the oil control rings just don't stand up to that kind of mileage. They're easy to change. All the wear numbers looked good for all the runs, with slightly better iron (7 instead of 9) and copper (4 instead of 5) numbers for the ones with the Marvel Mystery Oil. On Friday my can of motul motorcycle flush came in and I did it per instructions then changed the oil. arrestor from the carb and have a can of fogging oil close by. "Staking" the valve: You need a hammer and a block of wood. I poured a capfull of marvel mystery oil down each of the cylinders in my 'vert, after it hadn't ran in about 7 years. We never had valve or ring problems. Viewing 4 posts - 1 through 4 (of 4 total) Author Posts December 6, 2010 at 9:25 am #3509 ridercoach1 […]. Shelf life 730 days. Supposedly, it helped lubricate the valves, but who really knew? STP Gas Treatment was a big seller also. good gas additive or snake oil? leaking oil cooler, missing belly pan, leaky CCV, leaky valve cover, leaking door seals, broken glovebox,. i was as careful as a first timer could be when i. Drain the oil, refill with 3/4 qt of 10w30 plus 1/4 qt of Marvel Mystery Oil or automatic transmission fluid. When these valve fail the head can come apart from the stem. car oil leak repair trouble? My car (1993 Toyota camry), has slightly oil leak. A good rule of thumb is "smokes going up hill, rings-smokes going downhill, valve seals. While I cranked on the starter, Craig would crack each line before the injector to confirm delivery. So based on what I read here and there, I bought a 5 gal jug of Mobile 1 Advanced with a Bosch premium filter on sale for $34 total and picked up a quart of Marvel Mystery oil. (I’m only ~4,500 miles into. Thats a good analogy citing primitive Model T Ford. Then run mobil 1 going forward. They're easy enough to change without a teardown. in the summer i don't get the lifter noise so i son't bother with the marvel. I ordered new Honda part 91211-286-003 to replace the oil seal that was apparently failing. I don't think much of SeaFoam, Marvel Mystery Oil, fuel system cleaner, really anything along those lines. MY engine still ran good, but if left to idle for more than a few minutes, would become a smoker. Not saying this is the right method but it works for me and all my tube frame and large frame tractors. These seals fit either your existing original guides, or the new guides made of either bronze or steel. it will line up on the wrong holes and interfere with the cover. Re: Which valve oil do you use? by Michael Bush » Tue Sep 12, 2017 8:09 pm I add enough Marvel Mystery Oil (mostly mineral oil, but looks and smells more interesting) to turn the lamp oil dark pink/light red. I think it does something for valve guids and the top of cylinder. Had 145 - 90 compression when I first started it, now has 145 - 140, runs GREAT, and does not foul plugs. I agree, the noise is probably just a loose rocker, it'll probably make itself known once you run it with the cover off which one it is. he thought that crap was golden. the threaded pipe on the engine block. Marvel Mystery Oil® engine and fuel additive helps prevent oil breakdown caused by extreme temperatures. I used Marvel mystery oil and let it set on there for exactly 17 hrs. marvel mystery oil. i have an 85 22re with 2600 miles on it using about 1 qt of oil every 500 miles had a compression test done 140,135,100,140. Browse an expansive group of 312 Dyna Quip Valve available for buying now on the internet. Your head gaskets would seem to be intact if the crankcase is not getting pressurized. I pulled off the valve cover (making a huge oily mess) and poured marvel mystery oil on the guides and replaced the Bent rods and drove it for a couple more years with it never happening again. Industrial Supplies, Equipment, Tools, Parts and Services. Oil additives are used with base oil to enhance the benefits of lubrication in car engines. Showcasing 1940s Cars available for purchasing now. Mechanic suggested flushing the engine as the lifter may be clogged. ATF, Eds Red, any oil, basically, will work. I'd use a straight 30 weight engine oil and 2 tablespoons of automatic transmission fluid. * Are you getting lifter tick? if so - i had it in mine and i tried Lucas Oil Stabalizer, doesnt tick any more. So I recently learned about Marvel Mystery Oil out in the wide world of web. Then refill with spec oil -- Mobil1 0W40 (not just Mobil1, the 0W40 is the spec stuff) and a quart of Marvel Mystery Oil. I use Crosman Pellgun Oil for the old Co2 rifles, as it's made for them and the pumpers. HRL is right on if the rings are gone watching the oil level is cheaper than a rebuild. I can only attribute this latest glitch to a lack of oil after a month's lay-up. I mixed some in a qt. I've used Marvel Mystery Oil in cars obtained from local municipalities which were police cruisers and detective cars which had in excesses of 150,000 miles on them which were smoking out of the tailpipe, missing/fouling spark plugs and the stuff seems to work to correct those problems. We can thank most of that to 3 things. Kelly about the MMO's special abilities and he was very cordial with his information. I might use some seafoam too, but I would rather just clean the oil pan and valve cover manually because its just better that way, and then if its still dirty, then I can run some Seafoam or Marvel Mystery Oil through it. good gas additive or snake oil? leaking oil cooler, missing belly pan, leaky CCV, leaky valve cover, leaking door seals, broken glovebox,. Any suggestions > as to what this could be? Sounds like a sticky lifter. A bit of high-temp grease on the valve stem above and below the seal at assembly doesn't hurt either. While the car was running the mechanic added a can of Marvel Mystery Oil and within 30 seconds the car was running well and the idle was no longer erratic. Im curious because im about to buy an engine and was thinking if the engine was not working for a long time then something inside can go bad like piston rings. I then flushed the pump and lines with marvel mystery oil and then Mercon V fluid. I always recommend adding it to the oil and first few tankfuls of gas when firing up a fresh motor. After doing a search, I was convinced my exhaust valve seals needed replacing so I was preparing myself mentally for this project sometime in the near future. Here’s my experience with Marvel mystery oil. One guy did constant oil analysis’ while using MMO in his oil and nothing wrong with his engine, documented on Bo. Marvel Mystery Oil is the most often cited additive. Added to gas it cleans and lubricates fuel injectors and carburetors, improves gasoline mileage, extends spark plug life, reduces and prevents varnish and gum build-up. Valve seal smoke usually clears up in the first few minutes of being cold. I took the head off and found the rubber seals on the valve stems had. marvel mystery oil. Marvel Mystery Oil fortifies the base properties of your basic motor oil, whether traditional or synthetic, by increasing its ability to prevent valve sticking and clutter by breaking down the harmful deposits of carbon and sludge. Shop lots of Oil Trailer for sale now! 4 Shower Tub Faucet Valve Teapot Oil Rubbed Bronze Camper Rv Trailer Motor Home For Sale Online. GREAT SALE PRICE. Replace intake and/or exhaust valves, guides and all stem seals as required. I use Marvel Mystery oil by the gallon. Trans fluid has EP additives. It could be that the valve seals have turned hardish from heat and age and on startup you may see a puff or so of smoke. Read honest and unbiased product reviews from our users. Another option is to use sea foam in the pvc port to clean the valves, valve stems and cylinders. Re: Modern ULSD Diesel bad for old diesels? I ran my Hatz Diesel the other day for an hour with 16 ounces of Marvel Mystery Oil in the fuel tank, and noted that the engine was still squeaking when hot. We used to do that in the salvage yard I worked at when resurrecting old engines for sale. These are based on my many years of experience owning, riding, restoring and servicing these bikes. Then run mobil 1 going forward. Automotive or axle grease from Wal-Mart are fine. I just put some Marvel Mystery oil in both the gas tank and the crankcase hoping to free the stuck valve. I have been told i may have a or some stuck rings. More advice. Draper) is a powerful midrange desktop that is primed for smooth Home windows Vista performance. It contains detergent additives that can remove stubborn debris and sludge from the engine. THIS INCLUDES MARVEL MYSTERY OIL OR ANY SYNTHETIC OIL. It won't hurt anything. i do have experience with viragos. Sometimes these engines burn oil and after doing a head you know it's not coming from the valve guide seals that youv just replaced. It is supposed to keep rings from sticking and keep the valves clean plus cut down on engine wear. by using "marvel mystery oil". Burning oil usually is a result of damaged or faulty seals. to start with they dont have any lifters. Lucas engine oil stop leak is a unique formulation of Lucas additives and base stocks designed to stop leaks in engines. Some people think it helps, but I think it’s a waste of money. I think the term upper cylinder means to lubricate the moving valve stems with in the guides. I use it in every one of my oil changes, only half a quart though. The original oil enhancer AND fuel treatment cleans the engine from the inside out, increases fuel economy, and protects against temperature extremes. along with the oil seal on the timing chain. That's the best taking your time & having fun while doing it. Today, a poster observed that a lot of additive packages are gone in some number of hours. #1 - Diesel fuel is inherently an oil and thus a lubricant. if you have valve noise, check if you have adjustable valves or hydraulic. Discussion in 'Gen 2 Prius Care, The problem likely IS wear on the piston rings or the valve guide seals. Rated 5 out of 5 by Ed66 from Step son trouble Several years ago my step son (at the time) was getting himself into a little trouble, in a part of town he should not have been in. Your head gaskets would seem to be intact if the crankcase is not getting pressurized. I am a DIYer. If it smokes on cold start and when the car decelerates it is a clear sign of valve seals. spoon in the s. If the engine has a lot of blow by and uses oil then it is probably the rings. Find helpful customer reviews and review ratings for CD 2 MM12R 16 oz. After some cleaning, the oil leak appears to be the crank oil seal behind the PTO. Marvel Mystery Oil. If it continues to smoke and uses oil, put some MMO in the pan and run it for a little bit then change the oil and filter. Modern Viton valve seals work pretty darn good , perhaps too good. Supposedly, it helped lubricate the valves, but who really knew? STP Gas Treatment was a big seller also. More advice. This WON'T hurt your engine, but it might help. >> Using Marvel Mystery Oil >> Using Lucas Oil Stabilizer with oil change >> Running 20W50 (no distinction between conventional or synthetic) Keep in mind that I haven't been running long between oil changes and the oil has been coming out filthy each time (including a flush run where the oil only ran in the motor for 10-20 minutes). I was lucky enough to get my '86 almost new when it had just a few thousand miles on it. Burning oil usually is a result of damaged or faulty seals. When unleaded fuel came around, the big "issue" was that it might burn out the valve seats on older cars. So you could prime it up & fire it & see what leaks & fix as you need to or you could replace front & rear crank seal , valve seals etc & check the brgs. Also oil was coming in from the left and right side hoses. While it could be of use above the rings, it would be difficult to apply it in our machines without clogging up the fuel system. We poured 2 quarts of Marvel Mystery Oil and 1 quart of regular cheap oil into the motor and cranked it up for 1 minute. It is not harmful. It doesn't burn oil when its running already, but smokes when first started. What seal do I use for Methanol? Can Viton be used for Methanol? Can I use Marvel Mystery Oil, transmission fluid, motor oil, hydraulic oil, glycerin, etc instead of the Sidewinder Lubricate? When do I use a one piece Uniseal versus an O-ring seal? How do I determine which seal will work best with the chemical I am pumping?. Seadoo 4-tec Head And Valve Gasket Bolt Kit All Years And Models 130 155 215 255 260 Seadoo 4-tec - $124. Our team has searched far and wide for a very broad variety at competitive prices. Since I am 150 miles from my boat, this is not possible. Other additives like Marvel Mystery oil (in the gas) might attack another problem by removing carbon, soaking into the metal to prevent the carbon from building up in the first place, improving compression, cleaning the inside of the engine and so on.