![]() It's a pricey job for the labor, and every penny is earned. Owners of the 2013 Toyota Corolla were subject to a recall for an airbag. Hello and Happy Holidays, My mom has been told by the dealer that her 'timing cover is leaking' and it. Quote was 240 for the drive belt and 1280 for the timing cover leak. If you don't have the cover correctly positioned and secured, without false starts or sliding, in the right number of minutes, from when you start squeezing the tube. I went in today for a factory airbag recall on my 2003 Toyota Corolla (127,000 miles) and was told that my car needs to have a new drive belt put in (they said it’s dry and cracked) and that it is leaking from the front timing cover. She had it looked at by a second mechanic, who confirmed that there was a leak, and that he would do it for 'half of the dealer quoted price'. You can't bump the engine or the cover with the blob of grease on your wrist while sneaking your arm down where you can't see, or you have to clean it all off and start over. There is no leakage of oil on the ground in her driveway. The technician removes the valve cover, sets the crank and camshaft to top dead center on cylinder 1, unbolts the tensioner, replaces the O-ring on the tensioner, resets and reinstalls the tensioner, and reassembles the valve cover with a new gaskets. If you're trying to do it yourself in cramped conditions without the engine pulled from the car, you're taking a gamble that it won't leak worse after you're done than it did when you started. Repairing the leak involves replacing the failed O-ring that seals the timing chain tensioner. The robots that do that in the factory are probably really fun to watch. The tensioner leaks down the back of the block onto the power steering pump and crank pulley, and eventually down the oil pan onto the ground. Mendel attached those instructions a few years ago. Finally had a shop wash down the engine and found the leaks from the timing chain cover. There are very strict specifications on how to apply the FIPG, the surfaces (both the timing cover and the front of the engine) have to be squeaky clean and oil free, and you have a stopwatch going from your first squeeze on the FIPG tube to the cover being secured correctly in place 3 minutes later. Trying to reseal valve cover and timing chain tensioner, still leaks. As oil leaks from a valve cover, it can contact a hot exhaust manifold and burn. The telltale sign of a valve cover gasket that has lost its seal is an oil-covered valve cover or a burning oil smell when the engine is running. The only parts needed are a couple of O rings, a replacement crankshaft seal, and a tube of FIPG to apply around the edges of the timing cover. This allows oil to leak from the timing cover and if the oil leak is left neglected, road dirt and grime attracts to oil-covered areas and sticks. Leaking mystery Locating oil leak sources can be tricky. ![]()
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