SupDoc Posted February 24 Report Share Posted February 24 I'm getting this leak from the #4 cylinder spark plug. I've already checked that the torque is 15 ft-lb. Any other ideas on getting it to seal? How much torque can you put on these spark plugs before you risk stripping the threads? Quote Link to comment
datzenmike Posted February 24 Report Share Posted February 24 Check the head where the ring gasket on the plug seats and seals. Maybe something in the way. Replace it. Possibly the ring gasket is bad. 1 Quote Link to comment
banzai510(hainz) Posted February 24 Report Share Posted February 24 only torq it to spec. Mine would leak on a worn motor anyways. 1 Quote Link to comment
Stoffregen Motorsports Posted February 25 Report Share Posted February 25 You can buy aftermarket copper spark plug washers. We use them to index the plugs, but you could use them to help seal that junk in. 1 Quote Link to comment
SupDoc Posted March 3 Author Report Share Posted March 3 When I removed the spark plug, I was able to see that the top few threads were messed up, the ring gasket didn't have a good surface to seal against. I was able to get a copper washer that was wide enough to span the bad area, and it seems to have sealed the leak. 1 Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.