TeamCapri
Tech, Repairs, Upgrades => Capri XR-2 89-94 => Topic started by: Casper on February 13, 2017, 11:32:09 PM
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Hi ,
Wondering if anyone has had this issue with an oil leak that seems to only occur when high RPM/Boost has been used - idling around town under 3000RPM doesn't seem to produce a leak.
It does leak a 4 inch diameter oil patch after parking - I believe there are some oil hoses which deliver to the pistons for cooling during higher RPM, but I am also uncertain about the oil catch tank next to the distributor and what it is doing..is this a surge tank?
My thought process is that the leak must be somewhere along these routes as it is appearing low on the engine and only at the rear (apparently) as best I can see so far.
I recently fixed a valve cover gasket leak so no oil high on the engine now. I did replace the coolant bypass o-ring recently which required removal of a lot of hoses at the distributor end of the engine (I didn't want to remove the turbo/exhaust manifold) - wondering if I disturbed a hose end or cracked a hose associated with the surge tank?
Anyone had this type of condition before ? Any thoughts?
Thanks
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Baby powder is your friend.
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I know it helps in other issues - just not sure how it helps in this case?
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The piston cooling oil circuit is located completely within the oil pan, so that's not going to be the culprit.
Check the rubber cap on the back of the oil pan - this was an unused OEM part, capped off at the facotry. Maybe this has failed?
Cam seals, crank seal, rear main seal, turbo lines - these are some likely candidates for a leak of this nature
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Thanks for the tip - sounds like another trip under the car.......
I need to pressure clean underneath first to hopefully see the start of any leaks.....
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That's what the baby powder is for. Just coat that shit. You're going to have to clean it off anyway, might as well get a definitive answer before you do it.
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Well I have given it a clean - very hard to tell where it is from - it is not up high on the engine as that is all clean - it appears to be dripping into the engine support member under the transmission, then dripping on the floor but no idea for the source.
I notice the turbo supply line has some oil weep around it on top of the turbo - I need to check the oil return line but nothing apparent from feeling around (no real wet oil or anything).
I don't suppose it could be transmission related as the oil dripping seems very clean - it is dripping around the drain plug of the transmission as well. But that could be just air flow movement from front to back...!!
Oh I love tracing oil leaks - just to add to that I have found the turbo coolant supply line has a minor leak at the bypass pipe.....new hose coming up......
The search continues........
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My N/A leaks from the shifter rod, but that's at the very back.
Jack Byrd
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If it's engine oil, it could be the rear main seal leaking from inside the bell housing of the transmission. It could also be the distributor o-ring, and travelling a long way down the block
If it was transmission fluid, it would smell different - ATF or Gear Oil is pretty distinct.
How are your fluid levels in the engine & transmission?
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It looks like engine oil as I have semi-synthetic oil in it currently and fairly new so it appears to be that.
It is an intermittent leak - more driving has shown it seems to occur after longer driving sessions and not short trips - regardless of driving style (revs) so maybe not just a high revs as I had first thought.
The cross member underneath makes it hard to see where may be coming from - I will get the inspection camera out again to see in the gaps for any new oil marks....
I have a Jeep with a 307 chev that has a rear main seal leak and similar symptoms after long drives it blobs out from underneath. That seems to be possibly easier to fix than on the capri....at least on the youtube vidoes....haha