Turbo Oil Feed In Cylinder Head. Help Please

[gee-aye-dee]

I am in the process of a turbo conversion, i have a fitting which is 1/8 bsp also it looks tapered so im thinking its bspt. But it wont fit inside the oil gallery hole in the head, too big. Is it common practice to drill and tap before they fit or am I using the wrong fitting here.

 

[SirChris]

I am in the process of a turbo conversion, i have a fitting which is 1/8 bsp also it looks tapered so im thinking its bspt. But it wont fit inside the oil gallery hole in the head, too big. Is it common practice to drill and tap before they fit or am I using the wrong fitting here.

Wrong fitting mate. You don't need to drill and tap I can't remember what mine is.

 

[gee-aye-dee]

Excellent. Being that i am in australia i may have some dramas tracking down the right fitting. But alas, I will find one!

 

[SirChris]

@pollyp @frank what's the thread for the oil feed on the head? 1/8 ?

 

[h701micra]

1/8bspt I thought

 

[SirChris]

I thought it was but he tried that no?

 

[Paul Smith]

You are taking it from the right hole?

 

[Low Rider]

You are taking it from the right hole?

I beg your pardon?

 

[SirChris]

You are taking it from the right hole?

Only one hole in the head lol

 

[Paul Smith]

Any holes a goal but some are just better ;-)

 

[Paul Smith]

Unless he's using the oil pressure sensor hole. That would make 2 ;-)

 

[SirChris]

Eurgg I'm out

 

[frank]

I am in the process of a turbo conversion, i have a fitting which is 1/8 bsp also it looks tapered so im thinking its bspt. But it wont fit inside the oil gallery hole in the head, too big. Is it common practice to drill and tap before they fit or am I using the wrong fitting here.

sounds like you have an npt fitting GAD, they,re about half a mm bigger than bspt

 

[gee-aye-dee]

Well heres the thing. I bought another speedflow fitting. Which was quoted as being an npt fitting. Went straight in, hasnt leaked at all. dafuq??