G80cs head crack

Information relating to the Matchless G80 or AJS Model 18 500cc Heavyweight.
itma
Posts: 7721
Joined: Tue Nov 22, 2005 6:01 pm
Location: UK

G80cs head crack

Post by itma »

Lots of bikes have cylinder heads that develop cracks at this point.
Triumphs were famous for it.

I too have run bikes for many miles and the crack gets no worse and does not impede the running.

As you have only started to worry about it since you have seen it......QED

RHS == rocking horse excrement
torker
Posts: 21
Joined: Wed Mar 02, 2011 12:00 am
Location: USA

G80cs head crack

Post by torker »

This is the same thing the machine shop said to do. He said do the valve job, put it back together and ride it another twenty years.
Don Madden
Member
Posts: 2882
Joined: Mon Jan 01, 1990 12:00 am
Location: USA USA

G80cs head crack

Post by Don Madden »

Ken, you know all about Rocking Horse S**t. Most of those were shipped to the US & I looked 10yrs before finding one for my Typhoon. Cheers, Don.
itma
Posts: 7721
Joined: Tue Nov 22, 2005 6:01 pm
Location: UK

G80cs head crack

Post by itma »

No Don, my speciality is BS, as you well know

anyway, are not the seats cast in?
Locked