The proper way is to replace the timing belt, tensioners and pulleys, water pump and crankshaft and camshaft seals. The thicker oil can fill in the gap between the seal and the crankshaft, and could slow the leak down. The Lucas Oil Engine Oil carries all the characteristics of a typical Lucas … The additive is specifically formulated to stop and seal oil leaks that are caused … When an engine gets an oil leak, the first thing you imagine is that there's a serious problem that is going to be expensive to fix and take hours of work. Rear engine oil leaks that are confused with a rear main seal leak are usually an oil pan gasket leaking. Here is a page with more in depth information on valve cover gasket leaks, tools, and part numbers. These seals may only seep oil initially but can develop into significant pressurized leaks. The spot goes from the harmonic balancer all the way up to the water pump, so I'm suspecting the front crank seal to defective. And this process only takes five business days to assess the overall condition of the vehicle and give you the information to make the best decision for you, consult with you about the vehicle condition, make the necessary repairs, and test extensively post repair to ensure you don’t have to come back and see us for a while. Somewhere around 160,000 miles the rear crankshaft seal on my 1999 Honda Civic started to drip noticeably. BlueDevil Rear Main Sealer is a non-particulate chemical sealer that will restore your crankshaft seals to their original size and pliability restoring their ability to seal against your crankshaft and stopping your oil leak. Toggle navigation. said must install this teflon seal dry, must clean the groove first of any oil. 2) The seal polymer works by building … The oil stop leak is used to reinforce oils in general industrial applications, add at a 10% treatment ratio. ... will these products … ... Revitalises hardened seals; Reduces oil consumption; Reduces exhaust smoke; Works on crank seals, cam seals … BlueDevil Pro says: December 1, 2015 at 2:29 pm. ... Crankcase oil additives can sometimes help slow a leak; by causing aged gaskets and seals to swell; but no additive will stop a major leak or repair a broken gasket or worn seal. But, given our level of experience with these vehicles, we feel this is the most cost-effective avenue to continued ownership of one of these Cadillacs. The front main bearing typically is sealed at the crankshaft snout with a timing cover oil seal, and the rear main bearing seals at the tail of the crankshaft. 1) The seal restorer additive restores seal size, flexibility and elasticity lost due to engine heat, age and high mileage. These leaks can be repaired with the engine in the vehicle and can be handled by most reputable shops and DIYs. There is also the cost and aggravation of repeat visits to the repair shop to handle each one of these seals separately and the time without your vehicle. Engine and engine compartment thoroughly cleaned. It sits low inside the engine block, usually just above the oil pan (also known as the sump), and counterweights splash oil to lubricate the main bearings. I’m convinced that in the vast majority of cases these leaks have been misidentified and improperly repaired causing additional issues. SDS Product Bulletin. Sometimes the seal conditioners may work and help the leak. If it's not dripping the seal is probably OK, There is an amount of "normal" … Larry-Yes, the BlueDevil Rear Main Sealer is compatible with your Dodge Ram. After repairing these leaks on so many Cadillacs we developed a system to seal these leaks that is effective, efficient, affordable, and adds value to your luxury car. But at RB Auto Service we specialize in Cadillac. When that starts to leak, the timing belt gets oil soaked and can lead to failure. Can I use an oil additive to stop my rear main seal leak? Nulon Pro-Strength Rear Main Seal Stop Leak is a concentrated formula designed to eliminate rear main oil leaks due to seal shrinkage, hardening and deterioration. 3 year / 36,000 mile fully transferable warranty against oil leaks. All proceeds go to supporting the site. Do you have an oil leak on your Northstar 4.6 equipped Cadillac? I wouldn’t use them unless there is an expensive to repair seal leak problem. fwiw. This represents considerable labor savings. Pro-Strength Rear Main Seal Stop Leak. Northstar Valve Cover Gaskets. problem with the rear main is it is a 'transmission out' job, so quite labour intensive. GM approved engine sealant to improve the sealing of the lower end of the engine. Gear oil additive plus stop leak also has a seal conditioner to prevent and eliminate leaks. These should be handled by someone experienced with the Northstar engine but can be handle by someone with the right tools, good service information, and attention to detail. I use the Valvoline Maxlife HM in the Envoy; besides the seal swellers, it has a good additive package. Wondering if you need a rear main seal leak stop additive? All of these engines will experience lower crankcase seal leaks, oil pan leaks, valve cover leaks, and rear main seal leaks as well as leaks from sensors and filter adapters. At RB Auto Service we repair all current leaks and PRO-actively reseal all other seals and gaskets. Also could try moving up to a thicker 30 or 40 weight. And, it improves synchronizer performance, decreasing shift effort in manual transmissions. Bar’s Leaks. Once I changed to Mobil 1 high mileage and for the entire interval it stayed close to full. The best plan for those with limited experience is to bring the vehicle to a licensed professional who can accurately diagnose the cause of the oil leak and likely replace the seal. User #117655 4372 posts Others like oil pan or lower crankcase seals require extensive labor and can be more expensive, in the range of $2000-$2500 are common. Read about BESTgaskets rope seals that will put an end to leaky y-blocks such as the Ford, Chrysler, Cadillac, Buick, Chevy, and Oldmobile y-blocks, inside Street Rodder Magazine. Replaced the valve cover gasket and the oil pressure switch which brought the leak down to about 3 drops a night. TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada, "Chance Favors The Prepared Mind..." Dr. Louis Pasteur. The only way to stop a crankshaft oil leak is to replace the leaking seal with a new one. RMSSL. It has 167,000 miles on it. This service returns your engine to a leak-free status in the most cost-effective manner possible. Some of these leaks like valve cover leaks can be fixed in a day and are relatively inexpensive. It will also fix cracked heads and blocks as well as leaking freeze plugs and heater cores. No Oils or Sealants need to be applied, lest they get trapped within the Sealing Groove and Spring areas of the New, 2006 Envoy Denali 5.3 3.73, Part-time 4x4, DOD off, Saw a video on this (Kilmer?) Make no mistake this is a top quality job that will remain leak free for longer than the original factory seals. Repairing these issues separately can cost $4000-$5000 and potentially more. Though the seal is a fairly inexpensive part, labor costs can be expensive. Valve cover gaskets leak and run down the sides (Rear Wheel Drive) or front and rear (Front Wheel Drive) of the engine and can harm engine mounts, alternators, and A/C Compressors and can also be responsible for a burning oil smell as the valve covers are above the exhaust manifolds.These gaskets aren’t typically responsible for large oil leaks. These leaks are low on the engine and may only be noticeable as spotting in the driveway. Reply. Although it would be worth a try, given the limited leakage (as described). Bar’s Leaks Concentrated Rear Main Seal Repair restores the seal to like-new condition, and also contains additives to stop leaks in severely worn seals and crankshafts. This product works in two ways to help solve most any seal type leak. My 02 bravada was leaking oil from different spots, about a quart a month. If the leak is bad enough, it won't stop it. These repair prices are only for a fraction of the seals on the engine. Fuel Additives & Treatments. I use the Valvoline Maxlife HM in the Envoy; besides the seal swellers, it has a good additive package. I used various type of synthetic oil in an old gm engine that lost/leaked a quart between oil changes. Forté Seal Conditioner is a synthetic seal treatment which restores the elastomer properties to seals. 6240 39th St N Suite E Pinellas Park, FL 33781, © 2021 RB Auto Service Cadillac and Corvette Specialists. The rear main crankshaft seal is subject to the weight of the flywheel and clutch or fluid coupling. The rear main seal in your vehicle is at the back of the engine and seals the crankshaft as it exits the engine. How Our Guarantee Works: Quite simply, if the … Any imperfections or wear on the crankshaft can cause a leak. The Liquid Intelligence 229 Diesel Fuel Pump Seal Leak Fix formulation contains a unique combination of ester and phenol additives. There are several common areas these engines will leak from. But time and maintenance are considerations and low mileage vehicles may leak sooner while well maintained vehicles may not leak until later. We have performed many of these locally and still see the vehicles in for service dry and leak free 5 yrs and 100,000 miles later in some cases. If the seal tears or cracks even only slightly, the crankshaft rotation can cause the seal to get torn up very quickly causing a fast leak. Thank you! You are using an out of date browser. You can try a couple indexes with a high mileage oil. BlueDevil Rear Main Sealer is specifically designed to target your crankshaft seals for repair. The most common culprit is the front crankshaft seal. If you are told you have these leaks by anyone other than a specialist get a second opinion. Fix cracked heads and blocks as well as leaking freeze plugs and heater cores to... In or register to reply here do not stop these leaks by anyone other a! 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