C70 5244T Exhaust Cam Seal Leak
Hi. My first post and I'm requesting help. Bought a non-running 2000 C70 convertible (is that redundant?) with the 2.4 Turbo. Got it running immediately, but poorly and leaking oil. I replaced the timing belt, H20 pump, timing belt tensioner, and the idler pulley. Also rebuilt the turbo, replaced the front and rear cam seals, and replaced the oil vapor system. All good. Car started right up and ran well, but was leaking coolant and oil, and then I found oil in the coolant. Took the head off and had it resurfaced and the valve stem seals replaced. Torqued the head down with the angle gauge to 130 degrees. Discovered that the slots in the back of the cams are off center intentionally. They align with the line where the cam cover meets the head. For intake, the slot is above the line with the bottom of the slot aligned with the line. For the exhaust, the slot is below the line with the top of the slot aligned with the line. As long as the crank is aligned with the timing mark, the cams with be correctly timed (given that the pulleys are also correctly aligned). Okay, back to my issues. After getting it running (no codes), the coolant kept leaking and there was some oil dripping too. Finally fixed the coolant leaks (replaced overflow tank and got the different clamps properly tightened, including under the intake manifold). I was really worried that it was coming from the head gasket, but I bought a pressure tester with adapter for the coolant recovery tank and pumped it way up and found my 4 different leaks. However, now the oil spraying became really obvious. I had replaced the VVT gasket and the front exhaust seal. I don't think the oil is coming from the VVT gasket (exhaust side only on this engine). It appears to be coming from the cam seal or from the timing pulley itself (which is pressurized with oil from the VVT housing and solenoid...I believe). I'm guessing a cam seal problem. However, I did read somewhere that the pulley could also be at fault. Given the tight space even with the coolant/PS tanks out of the way and the wiring bundle out of the way, how do you carefully get the exhaust cam seal in place so that it does its job? Any good ideas? Any thoughts on the pulley itself?
Have to say I'm really tired of taking everything off at the back of the engine to lock the cams in place. Although that's not nearly as bad as removing and reinstalling the intake manifold (I've done it 4 times now and am getting pretty good at it).
Thanks in advance.
Eric
Have to say I'm really tired of taking everything off at the back of the engine to lock the cams in place. Although that's not nearly as bad as removing and reinstalling the intake manifold (I've done it 4 times now and am getting pretty good at it).
Thanks in advance.
Eric
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jordank
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Jan 16, 2016 05:58 PM



