2G EVO3 OFH in 2g (need help)

[19Eclipse90]

It... might not seal perfect though.

IMO, this is the definition of "not working".

If you are really concerned about it, run a NPT tap through it. BSPT threads have more taper so they can be tapped to NPT, but not the other way around. So, tap away.

I'm confused about what you are saying here. According to Pipe Threads for Tubes and Fittings where Pressuretight joints are made on the Threads - BS 21 and [ame=http://en.wikipedia.org/wiki/National_pipe_thread]National pipe thread - Wikipedia, the free encyclopedia[/ame], the taper angle for both NPT and BSPT threads is about 1.7899 degrees (1 degree, 47 minutes). What is different is the included angle of the threads themselves -- that is, the shape or profile of the threads is different.

In my experience, NPT and BSPT do not seal together. I would not advise using the NPT tap.

 

[DSM_GSX01]

So i am going to have to order a BSPT tap. I want to make sure and do this right.

 

[19Eclipse90]

Again, I'll recommend McMaster-Carr if you are expecting to pay $50 elsewhere.

 

[DSM_GSX01]

Yea i will just order it from them.

 

[DSM_GSX01]

Im trying to find the torque spec on the OFH bolts i cant find it in my service manual? I have been looking on the internet and Google as well. Thanks for any help.

 

[19Eclipse90]

11-16 ft.-lbs.