Crankcase Breather Bolt

Information relating to the Matchless G2 or AJS Model 14 250cc Lightweight
Locked
User avatar
Martin.S
Posts: 443
Joined: Sun Mar 18, 2018 12:02 pm
Location: Bristol UK

Crankcase Breather Bolt

Post by Martin.S »

Whilst my engine is apart would it be a worth while mod to add a spigot to the breathers hollow bolt so that a piece of tubing can take the oil laden mist from its present place and not be mistaken for gearbox oil?
User avatar
clanger9
Posts: 1165
Joined: Sat Jun 20, 2015 9:38 am
Location: Chester, UK

Re: Crankcase Breather Bolt

Post by clanger9 »

I did something similar with mine to route it to a catch tank. It has the later type breather with the separate bolt and 8mm copper pipe is a perfect fit in the hole.
When I accidentally overfilled the oil tank, it pumped the excess into the tank instead of all over the back tyre... :oops:
IMG_2286.jpg
IMG_2403.jpg
You do not have the required permissions to view the files attached to this post.
1989 Moto Morini Dart 350
1993 Ducati 750SS
User avatar
Ozmadman
Posts: 2651
Joined: Wed Dec 14, 2011 1:02 am
Location: ESSEX UK

Re: Crankcase Breather Bolt

Post by Ozmadman »

If you have a complete chain guard then this will lubricate the rear chain very nicely
Paul
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
Locked