VVT Oil Feed Leka
HI all - recently replaced my valve cover gasket a few days before a track event and lo and behold I get to the track day and I have a steady drip of oil on the ground while the engine is running. After a few weeks of troubleshooting, I finally figured out that the leak seems to be coming from the banjo bolt behind the VVT oil feed. I took it out and put it back but nothing seems particularly wrong with it. Outside of ordering a replacement from Mazda, any advice?
EDIT: I meant to mention, the sucker was definitely over torqued when I had to remove it the first time. It is I guess at an odd angle so I can't really get anything on it without grabbing a light impact to get it off, but again, visually everything on it looks fine. |
The copper washers are single use, and become work hardened and then don’t seal. You could try re annealing them, or just replace.
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Originally Posted by The Australian
(Post 1640674)
The copper washers are single use, and become work hardened and then don’t seal. You could try re annealing them, or just replace.
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I picked up these from harbor freight. Their largest size was the right size and my leak has finally stopped!
https://www.harborfreight.com/80-pie...waAuofEALw_wcB Its the one they label as 5/8" and is the most reasonable price I've found. |
Yes banjo leaks can and do make it into the bellhousing.
Actually pulled a new motor out when I thought I had a bad main seal at startup before finding banjo wasn't tight enough.:bang: Washers are single use. |
Make sure all the clamps & brackets on the VVT solenoid oil feed pipe are still intact. Some builders will delete a bracket to simplify installation and service. That usually leaks to a cracked banjo or pipe.
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