just finished throwing my engine back in the car. I’ve got the typical oil drip from the brass fittings to the oil pressure gauge. I’ve broken two brass couplers trying to cinch it down and have yet to solve the leak. I haven’t used any type of sealant on the threads as I wouldn’t expect it would need any. Has anyone had this issue and solved it? I know...Buick’s leak... but I’m stubborn. Thanks!
Are you sure its leaking from the compression fitting? Might be leaking from the threads going into the block. Don't use Teflon tape though. Get some pipe dope and apply it sparingly to the threads on the fitting going into the block
+1 on the pipe dope. I put in new dial gauges and had that issue. I don’t have that issue any more...
Ok, I’ll give that a shot, I’ve got some on hand I’ve just heard counter arguments. I’ve also heard to use permatex copper gasket sealant. Either way, I’ll try one then the next should the first fail and will post my results. Thanks all
I had a 3/8" NPT tap break a tooth while tapping my current block. Ended up "Deep Tapping" and will be using this sealant. LOCTITE 545 (Known as Loctite 545 Thread Sealant Hydraulic/Pneumatic Sealant High lubricity thread sealant for locking and sealing metal pipes and small fittings with fine threads. LOCTITE® 545 is a pipe thread sealant designed for locking and sealing of metal pipes and fittings. It is specially formulated to offer high lubricity for easy assembly and removal. Recommended for fine threaded fittings as used in hydraulic and pneumatic installations and small fittings in general. Suitable for fittings up to 50 mm in diameter including pneumatic and hydraulic fittings. Larry
went on a Sunday cruise after trying the PTFE pipe dope and it’s now dry as a bone! Thanks all! Now if I could only figure out where all this rubber in the rear wheel wells keeps coming from....
