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leaking oil from the pulley side of motor

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yeti-gvr4

10+ Year Contributor
422
2
Dec 23, 2010
san diego, California
I'm just trying to get a grip on what would be leaking from this side of the motor
its dripping all the oil out in a full day...
 
It could be your oil filter housing that's leaking. Or possibly your front cover. I just found a leak behind the balance shaft pulley. There's an O-ring/seal that goes behind there. It could possibly be that as well.
 
Why are you picking up another block, just find where the oil is leaking, fix it and drive it.
 
The other block and head is at the machine i just have to pay for the work done to it , The reasoning behind getting another block is because something is rattling at idle in the bottom end like piston slap so i kind of want to pull it all out,But that's not gonna happen because that engine at the shop is for my girls gs-t.

How plausible is it to do all of the above mentioned seals and gaskets in a day if i remove the motor mount and jack up the motor with a block of wood from the oil pan.


I also have oil under the right and left side of the exhaust manifold,and i have oil in the top of my VC where the plugs go and where the timing belt is....

Should i get some black light dye and put that in the oil
 
I also have oil under the right and left side of the exhaust manifold,and i have oil in the top of my VC where the plugs go and where the timing belt is....

Should i get some black light dye and put that in the oil[/QUOTE]
your valve cover is cracked for the most part which causes oil to shoot up by your plug wires under pressure
 
That's what i thought but i couldent see any hairline cracks or anything...\
what do i have to do for those seals just remove pulley side motor mount and take off all belts and pulleys?

my friend was telling me that i had to drop the crankshaft to do the crank seal

Also i have oil from underneath the right side of the exhaust manifold and the left side, my valves may not be sealing cause 1/4 cup of oil comes out of my intercooler when i take it out so should i put in all this work for this motor or just swap it with my fresh one that has to be assembled
 
Theres no need to drop the crank but you have yo drop the motor a lilttle bit,you have tp remove your oil pan, accesory.belts, ac,alt,power steering them remove timing cover and them remove, all timing components,front cover, your oil pic up ect. Is very time consuming i need to do it too.. but hey where do i get black dye ???
 
That's what i thought but i couldent see any hairline cracks or anything...\
what do i have to do for those seals just remove pulley side motor mount and take off all belts and pulleys?

my friend was telling me that i had to drop the crankshaft to do the crank seal

Also i have oil from underneath the right side of the exhaust manifold and the left side, my valves may not be sealing cause 1/4 cup of oil comes out of my intercooler when i take it out so should i put in all this work for this motor or just swap it with my fresh one that has to be assembled

Don't listen to your friend, you don't have to remove the crank. Just remove the timing cover, timing belt, timing sprocket and pry the old seal out and install a new one. There are 2 other seals on the oil pump housing also. One for the balance shaft and one for the oil pump sprocket. There are also 2 seals in the head for the cam shafts. The other possibilities are the case to block gasket, o-ring in castle plug, oil filter housing gasket, oil pressure sending units, oil cooler, or oil filter loose. You will never really know until you get under there and check it out.
 
I should get under there and see if i can see the leak before i do all the timing belt stuff.

thanks to everyone for this help
 
I agree with what bryanwheat said "Just remove the timing cover, timing belt, timing sprocket and pry the old seal out and install a new one. There are 2 other seals on the oil pump housing also. One for the balance shaft and one for the oil pump sprocket. There are also 2 seals in the head for the cam shafts." I had the same problems, in the same places more or less. I wasnt loosing oil as quick but still loosing alot of oil in a day. Changed out all these seals and bravo there ya go back to working order( i did happen to do all this while my head was off already for a HG)
 
You still got balance shafts?: If your leaking that bad, with no b shafts then your plug is leaking. Thats a major leak if your oil is gone in one day. check your oil filter too if its loose it will spray all over from it

The balance shaft hole was what I was thinking. I bought a car that pissed major oil, replaced the oil filter housing and gasket, just to find out nobody ever plugged the balance shaft bolt hole.
 
Look closely at your cam seals. I had my exhaust cam seal in a tiny bit crooked after a head rebuild and it blew out about 90% of the oil into the timing cover, and some of that wound up under the spark plug cover. It also ruins the timing belt and "B" belt if they are soaked in oil. I had a brand new belt set on before that seal blew out. Afterwards the belt was disturbingly loose and felt like it was retaining oil. I didn't want to risk having to do the head AGAIN, so I replaced the belts also. Don't mess around with an oil soaked belt. You will regret it, as has been stated on this site many times. I initially thought "eh. It'll be fine..." Then I set a new belt down on the garage floor and laid the oil soaked new belt on top of it to see if they matched... The oil soaked belt fit around the non soaked belt almost exactly... So about 0.25" of stretch or more just from oil on a tensioned belt. That is about the full length of travel on the tensioner. Just a slight bit more stretch could easily have caused it to jump teeth... Then bang bang bang, "Aw sh!t", head rebuild time.
 
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Does it mostly only leak whe running? Is the timing belt wet with oil? Pull the timing cover off and spray the side of the engine down with some brake cleaner. Get it clean enough to be able to see where fresh oil is leaking from. It could be the cam seals, but that usually wouldn't leak that quickly (1-2 quarts/month). If it's as severe of a leak as you say, then I'd suspect it's somewhere on the front cover or oil filter housing.
 
That cam seal on mine dumped nearly an entire crank case of oil in less than 1 day. If they aren't square when you install them, and then the pressure really shifts them around, you'll dump a lot of oil very fast. I pulled the seals, rtv'd the outside edge of the seals, and re-seated them dead square to the cam bearing. No leaks, but that is overkill if you do it right the first time. I just know from that experience that out of all the seals on the front of the motor, those are the easiest ones to install wrong. Where they blow out into makes it even more important to pay very careful attention to those simple looking rings when you set them in that housing. I agree that would not be the most common source of an oil leak. Like you said, those oil filter housings are terrible and don't seal worth a damn.

Another thing I just noticed... You said you had about a 1/4 cup of oil in the intercooler. That's coming from the turbo. The seals in it are shot too if you have that much oil all the way to inside of the intercooler. That doesn't necessarily mean the turbo is ruined, but it will require a rebuild.
 
Mine was leaking heavily out of the balance shaft belt tension pulley bolt. It needs to have thread sealant on it.
 
The bolts for the auto tensioner also penetrate the motor and will leak like crazy if they aren't sealed up good. I always make sure to wipe the face of the seats the tensioner sits on and the contact surface on the back of the tensioner itself with a clean towel so there's no grit inbetween the 2 surfaces when it is tightened down. If those don't seal up tight, it will leak. Not whole engine full's in a day, but it'll get that B belt wet, the belt will snap, and it'll probably assasinate the timing belt in the process.
 
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