engine breather

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lovern98
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engine breather

Postby lovern98 » Wed Mar 02, 2016 12:19 pm

Would someone with a bike please tell me the size (OD) of the fitting coming out of the engine fro the crankcase breather?

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gobium
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Re: engine breather

Postby gobium » Wed Mar 02, 2016 12:26 pm

Thread size is not metric nor standard .
Tube od is roughly 15mm or 5/8"
on 750 carbon ural

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Re: engine breather

Postby Who's Ur Grandaddy ? » Wed Mar 02, 2016 8:30 pm

I think someone here posted that it was wentworth plumbing thread .
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Re: engine breather

Postby Lmo » Wed Mar 02, 2016 10:23 pm

I think I still have some Wentworth wrenches from my BSA days. . ...
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Steve7959
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Re: engine breather

Postby Steve7959 » Thu Mar 03, 2016 4:17 am

WHITWORTH it's bl##dy WHITWORTH :gahhh:

:wink:

..... and if it's a pipe thread it would be BSP (British Standard Pipe), not Whitworth
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Re: engine breather

Postby dneprlover » Thu Mar 03, 2016 6:18 am

Don't know the OD for fitting a rubber tube to
Last edited by dneprlover on Sun Jan 29, 2017 1:02 pm, edited 1 time in total.
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Re: engine breather

Postby Lmo » Thu Mar 03, 2016 4:30 pm

WHITWORTH it's bl##dy WHITWORTH


Tomato, Tomahto... .. who freakin' "sizes" a wrench based on the DIAMETER of the bolt?!?!

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Lew Morris
Pismo Beach, California, 93449.
1963 (?) Dnural w/ '06 Ural Drive Train
C5 Power Arc
125/42 jets
Drilled slides/
.030" shims

1973 BMW R75/5 (original owner)
1947 HD FL (long gone, forever regretful)

Hereward
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Re: engine breather

Postby Hereward » Mon May 09, 2016 4:49 pm

Whitworth the genius who invented the thread size in the first place long before anyone else thought of standard thread sizes based on function....

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Re: engine breather

Postby INSUBORDINATOR » Mon May 09, 2016 6:20 pm

I must be missing something. I have a "L" shaped black plastic fitting that will turn through a full 360 degrees. No nuts are bolts involved. When I replaced my Crank Case Breather hose, I didn't need to measure anything, just used flexible vinyl hose & heated the end with a butane lighter & pushed it over the end. Didn't need to pull out my Whitworth wrenches. so what are we talking about here?
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Re: engine breather

Postby Mothra35 » Mon May 09, 2016 8:20 pm

Is it BSP? If so any one know the size?
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