ongoing oil leak

nthnnxn · Post by **nthnnxn** » 22 Dec 2015, 11:33

Hello again,
2000 S70 Base model is continuing to gather oil on top of the head. I have replaced the oil fill cap and cvvt solenoid gasket. I even put a hose clamp on the PTC hose... STILL POOLING UP

Where is this oil coming from??

clifford06 · Post by **clifford06** » 22 Dec 2015, 12:22

Greetings. Clean area. Start car and let idle. Watch around black 10mm bolts. Had similar leak. I had one bolt that was only finger thight .Good luck.

Post by **cn90** » 22 Dec 2015, 12:37

Oil Cap SEAL!

Post by **tryingbe** » 22 Dec 2015, 12:46

What brand of oil cap did you use?

nthnnxn · Post by **nthnnxn** » 22 Dec 2015, 20:17

Ok...So turns out at least 4 bolts are loose...but for some reason they will not torque down. Threads look good and NOT crossed...do I get new bolts, or R/R all bolts I have now? Dealer wants $13 per bolt and reccomends all 12 bolts be new.

nthnnxn · Post by **nthnnxn** » 22 Dec 2015, 20:19

Oil Cap is genuine volvo and came with new seal...I made the mistake buying cheap aftermarket CRAP before getting the REAL DEAL...LESSON LEARNED!

Post by **rspi** » 23 Dec 2015, 04:01

Leave it unless it's leaking more than 1 quart per 1000 miles.

nthnnxn · Post by **nthnnxn** » 23 Dec 2015, 07:54

I am losing about 1qt/250 miles... I can spin the untorqued bolts with my fingers only...

Post by **erikv11** » 23 Dec 2015, 08:00

If the bolts look good then the threads inside the head are likely stripped. Unfortunately, stripping of the soft, aluminum head is more likely than of the steel threads on the bolts. Test this by pulling a good bolt, one that threads in properly, from another hole using a socket, and testing it in a hole where the bolt is spinning. If that good bolt also spins then the problem is the threads, not the bolt. Check each one of the four holes.

nthnnxn · Post by **nthnnxn** » 23 Dec 2015, 12:52

Thanks! So assuming the head threads are bad...whats the fix?