dizzyj

My 3.3 stroker is together, but I've got a bad leak from the oil galley plug. The one on the front of the block behind teh waterpump/oil pump.

My machinist tapped to 3/4" npt and put in a threaded plug. I had to drop the oil pan, take off the oil pump and added copious amounts of teflon tape. Unfortunately, its still leaking.

I'm going to re-do AGAIN, except this time use loctite 592. Hopefully that helps, but if it still leaks, I'm out of ideas.

Looking for ideas if 592 does not work. Anyone run into anything similar in the past?

fortysixandtwo

Clean the block and plug treads with brake cleaner to get all the oil off of them. Then use a liquid type thread sealant that's resistant to oil.

I ran into a few leaks with ntp fittings on oil and gasoline applications when sealing with teflon tape. After switching to using liquid thread sealants I've never had a leak.

I don't recall what I have in my tool box right now, but its probably 592.

dizzyj

k, ill give it a go. frustrated to have to pull the oil pan off again, although if this is my big issue with a brand new custom 3.3l build, I guess im doing ok.

Dare

I tapped mine as well and used Gasoila to seal them.

AtharRazvi

Jeff, is this motor the 3.0L out of the S2?

Do you think you will make it out to the April DE?

+1 on liquid thread sealant. I've used Loctite 571 for thread sealant before, and had no issues.

Good luck!

dizzyj

ya, its the s2 motor, stroked to 3.3. so far so good if i can get this leak fixed.
I'm instructing at the DE, but Ill be taking my M3, not the porsche. Still not ready. I have to tune once I get all the mechanical working.

dizzyj

so white loctite 592 did not work. I tried using some 9340 to epoxy teh outside of the plug to the block. That seems to hold (At least at idle). really frustrating. I feel to fix correctly, I need to break the block back down bare and take it to a machine shop

michaelmount123

Nothing you put on the outside of the joint will seal it. If you can get the epoxy off, try Loctite 290 which is wicking and intended for installed fasteners. It could save you a lot of trouble. If you end up taking it apart, use Loctite 545 and be done with it.

dizzyj

why would 545 work and 592 not? 592 is a slow cure thread sealent for high pressure oily areas.

michaelmount123

Past experience is the best indication of future success. The 545 has worked for me many times in the past; especially on pipe joints that were less than perfect.

The 290 has also been a savior in sealing anything threaded without disassembly. It's also great for sealing up weld porosity. It's a WICKING sealant.

dizzyj

gotcha, so I can try 290 without taking anything apart and see if it wicks into the threads and seals. if that doesnt work, then try 545?

that would require me to remove the epoxy. did not know about 290 before.