stock fuel line - what size fitting into intake?

[Joseph Dell]

I discovered on my most recent motor rebuild that the stock fuel (which i'm not using anyway) has been disconnected.

2 questions.

1 - will this cause a vacuum leak? I think so...but not 100% sure.
2 - what size plug can I put in there? I checked the usual NPT plugs and the one that is closest in size doesn't actually thread. any suggestions?

Thanks in advance!

JD

 

[plumcrazy]

wish i could help ya joseph...but a bump cant hurt.

 

[1TONY1]

Are you talking about the threaded inlet into the intake (fuel rails) ?
I don't think it would cause a vacuum leak but it wouldn't hurt to plug it either. The injector o-ring should prevent a vacuum leak even with top feed injectors.

 

[Joseph Dell]

Thanks for the bump, plum!

tony - yeah... i'm talking about that threaded inlet into the intake on the back of the stock intake (passenger side). a 3/8" NPT plug starts to thread... but then it gets stuck. wrong thread for sure.

just trying to clean it up while i have the intake off...

 

[1TONY1]

You could drill it a touch and tap it NPT.

 

[Joseph Dell]

Not a bad idea. i think i will. Actually, i can just tap it... it is almost that thread size anyway.

but you don't think that leaving it open is a bad thing either, right?

 

[1TONY1]

Not a bad idea. i think i will. Actually, i can just tap it... it is almost that thread size anyway.

but you don't think that leaving it open is a bad thing either, right?

Not bad I guess ?? I would rather see it closed. What does everyone else do ?