Oil from crankcase breather pipe

Information relating to the Matchless G80 or AJS Model 18 500cc Heavyweight.
Member
Posts: 106
Joined: Mon Nov 16, 2015 6:08 pm
Location: east sussex

Oil from crankcase breather pipe

Postby willowbedone » Fri Apr 26, 2019 2:02 pm

Just been out on the g 80 Small amount of oil seeping from crankcase breather Is this normal ? Other than that it's running well after the complete rebuild

Posts: 613
Joined: Thu Feb 27, 2014 9:27 am
Location: Kent, England

Re: Oil from crankcase breather pipe

Postby JimFitz » Fri Apr 26, 2019 2:49 pm

Just marking its territory :D

Jim
Too old to Rock and Roll but too young to die.

1952 G80 rigid, 1960 G12 DL / Watsonian Monza, 1954 G80S.

Member
User avatar
Posts: 3534
Joined: Mon Jan 01, 1990 12:00 am
Location: LONDON UK

Re: Oil from crankcase breather pipe

Postby clive » Fri Apr 26, 2019 4:43 pm

willowbedone wrote:Just been out on the g 80 Small amount of oil seeping from crankcase breather Is this normal ?


Yes after all the breather is puffing out air over hot oil in the crankcase. Problems only really arise when you have had an overheating siezure and the rings get gummed into the grooves. In this case apart from poor compression you will see the oil cloud rising up behind the primary chaincase at tickover and a large deposit on the floor when you finally park up! :headbang:
clive
if it ain't broke don't fix

Return to G80 / Model 18

Who is online

Users browsing this forum: No registered users and 8 guests