The Natural Philosopher wrote:
Clot wrote:
The Natural Philosopher wrote:
Rob G wrote:
On 17 Apr, 01:18, Mike wrote:
On Thu, 16 Apr 2009 11:32:31 -0700 (PDT), robgraham

wrote:
I forgot when I posted some days back about my elderly cultivator
engine that I would need to know approximately what torque to
tighten the head bolts to. It's a Briggs and Stratton single
cylinder, side valve petrol engine, 3.5 hp, possibly 1960's
vintage. The block is aluminium.
Briggs and Stratton have a lot of workshop manuals on their
website for both current products and ancient ones. They are
complete with dismantling and rebuild instructions, exploded
views and torque figures, find something that looks similar in
construction and use the figures they quote!

http://www.briggsandstratton.com/mai...nual_and_more/

or you'll more likely find it here

http://www.briggsandstratton.com/mai...d_more/doclist...

--
Thanks Mike - gave me the leads I needed. Interestingly in the end
the torque of 140 in-lbs is standard for 3/8" steel bolts in
Aluminium.

Rob
That sounds WAY too much.

10 stone on a foot bar?


Thanks, I thought my memory was at fault. Seem to recall doing BMCs
to about 150 ft lbs. years ago which were not aluminium!


Im just looking in a haynes manual Cast iron cylinder head bolts 40lb
ft
Oh, hang on 140 in lbs, that's about 12 lb feet!!!

Yup. That sounds more like it. Whoever did it in lb-inches!!

Ah! So I had got it wrong, mixing the units, in lbs and ft lbs. Next time I
root through the old tools in the back of the garage, I shall have to see
what the torque wrench units were!