BSA Owners' Club Forum

The BSA Workshop => Singles => Topic started by: OLIVER on 13 March, 2017, 00:47:33

Title: head gasket
Post by: OLIVER on 13 March, 2017, 00:47:33
 :'(hi can anyone out there tell me the head nut setting for my c15 1960. as my head gasket failed after 50 miles .compression leak and oil pissing out
all over the front fender
cheers ian
Title: Re: head gasket
Post by: JulianS on 13 March, 2017, 10:21:00
Not seen a figure published for the C15 but the B40 with the same nuts as a figure of 28 - 30 ft lbs.

It is hard to apply the torques given the position of 2 of the nuts and on my B40 just tightened firmly and evenly.

Its worth looking at the recent post by ROBT headed "B44 head gasket" and the problem of head gasket being manufacture from too thin material causing the head to bottom on the cylinder spigot before the gasket has been compressed enough to seal the joint..
Title: Re: head gasket
Post by: OLIVER on 15 March, 2017, 22:36:44
thanx JulianS
THAT COULD WELL BE MY PROBLEM
I GOT SOME BRASS SHEET TODAY IM GONNA MAKE ANOTHER THIN GASKET TO PUT UNDERNEATH
FINGERS CROSSED THEY COMBINED WILL SEAT DOWN . I MIGHT EVEN PUT SOME WELLSEAL COMPOUND ..WORKS A TREAT ON CARS !!!
AS A LITTLE INSURANCE...