Bad oil leak front main seal in 1986 toyota 4 runner
Just leaking oil really bad all over the engine compartment after I washed it and drove it back home and opened the hood I could see where oil was on the battery and upper radiator hose and was fresh,so I have taken the radiator out and the fan and fan clutch,now here where I am not sure what to do I see 4 bolts on the cam shaft pulley and the center nut I have a puller to remove the harmonic balancer,which from what pictures I have seen the seal is behind that pulley so how do I apply the puller to the pulley to get it off and do I have to replace or do other things as far as gaskets or other parts such as timing cover or oil pump
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Re: bad oil leak front main seal in 1986 toyota 4 runner
You need to walk the pulley off.You will need three long bolts that match the thread in the balancer.Undo the centre bolt about half way and bolt the puller to the pulley.the centr bolt is used so the puller has something to push on in the centre Once you have wound the puller up and pulls the balancer until its stopped by the centre bolt.Undo the puller so you can unwind the centre bolt some more and repeat until the balancer falls off.Every thing must be evenly bolted,puller must be mounted squarely or you will have real trouble removing it.Unless the seal can be removed and replaced from the outside of the timing cover you should not need to replace anything else.Did you check the oil pressure switch as the amount of oil your talking about doesnt usualy leak that badly from a balancer seal
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Dear Sir, Here is the oil leaking Problem Identifying Technique
Engine oil leaks from the valve cover gasket are common.
The intake manifold plenum gasket may leak and cause increased oil consumption/burning and a spark knock during acceleration; the gasket should be replaced.
External oil leaks from valve cover gaskets, intake gaskets (front or rear), and the rear crankshaft (rear main) seal area are common. The rear main seal is an unlikely source. Normally, the bearing cap mating surfaces (as well as the sealing surface between the oil pan and bearing cap) are the source for the leaks.
If the oil filter casing shows signs of distortion from excessive oil pressure, theoil pump should be replaced.
Often misdiagnosed as a leaking oil filter gasket, the oil filter adapter can seep from between the adapter and engine block.
Carbon buildup on the top of the piston is common. As the buildup increases with mileage and over time, symptoms may vary from light ticking, to ticking/hammering, to hammering/knocking noises. Fuel injector cleaner often solves the problem.
severe oil leaks would be front timing cover crankshaft seal and the rear main seal or leak at oil pump at front timing cover oil leaks can come from damaged oil filter seal or damaged oil pressure sending unit.slow oil leaks oil pan gasket the valve cover gasket leaks you will see and smell smoke from under engine compartment which could be a fire hazard.
Need to find out where leak is from. Kinda sounds like a crankshaft main seal, front or rear of engine. Front one is pretty easy to change, but rear main seal leak means you have to drop transmission to get to it. But it could be another seal or gasket. Can you tell about where leak is, from oil spills on ground where parked? Look at engine. Is oil seeming to leak from bottom end or upper engine. May need to wipe or clean it off to see where fresh oil leak develops. A mechanic may need to put it on a car lift to pinpoint the leak. Good luck.
Are you sure it is leaking or burning it. First give the engine a good clean, then run it to see if it is leaking and from where. If it is leaking that amount then it should be easy to see.
If it is a front seal, I presume you mean the crankshaft, then you will need to remove the crankshaft pulley to get at it.
is the leak visually on the ground, then it seems like you could get under car and wipe a few things and see what leaks, thats a big leak, car would be leaving a smoke screen behind you from getting all over exhaust system. I would have to say, REAR MAIN SEAL BETWEEN MOTOR AND TRANS, OIL FILTER NOT TIGHT, Is oil all over the timing belt? front gasket/seal failure, Oil sending unit, is the light on or pressure gauge work?
On a 22RE the oil pump is on the timing cover behind the crank pulley/harmonic balancer,it has the crank timing pointer built onto it,generally they don't leak around the pump seal but as Monster80 pointed out they leak from the front main seal wich is installed on the front of the oil pump,pretty common for the 22R/RE to leak around the timing cover gaskets or out the bolt holes on the timing cover also,usually due to uneven tourqe on the bolts,to check the front main seal you need to look at the the crank from the underside right after you've shut the motor down,if the seals bad you'll see oil starting to form a drop on the backside of the pulley or the front of the oil pump housing.