Oil feed union extention

Information relating to the Matchless G80 or AJS Model 18 500cc Heavyweight.
Locked
Stuart Jenkins
Member
Posts: 50
Joined: Fri Mar 16, 2012 6:18 pm
Location: EAST SUSSEX UK

Oil feed union extention

Post by Stuart Jenkins »

Thought I'd try my luck in the G80 section as i got no response in G3.

Would anyone know the thread size for the engine oil feed pipe union extention http://www.amoc-parts.com/store/comersu ... duct=22695, not the thread that goes into the crankcase (1\4 bsp 19tpi), but the side that the pipe coming from the oil tank screws on?

Many thanks
Stuart
g3l 1941
BMW r80G/S '82
Yamaha FZ750 '90(Project)
cbranni
Member
Posts: 1439
Joined: Sat Oct 09, 2010 9:17 pm
Location: ABERTAWE UK

Re: Oil feed union extention

Post by cbranni »

They a quiet crowd in the G3 section :D :D

I reckon it's 5/8 x 20 tpi (the thread that takes the nut, I have added a photo.

Image

Colin
only dead fish go with the flow
Stuart Jenkins
Member
Posts: 50
Joined: Fri Mar 16, 2012 6:18 pm
Location: EAST SUSSEX UK

Re: Oil feed union extention

Post by Stuart Jenkins »

Thanks Colin, I did wonder if it was a different thread to BSP as they go from 1/4" to 3/8", and it didn't fit a 3/8 helicoil i've got.
Cheers
Stuart

*Must get myself a thread gauge!
g3l 1941
BMW r80G/S '82
Yamaha FZ750 '90(Project)
Locked