On 18 Apr, 10:46, "Clive George" wrote:
"Dave Plowman (News)" wrote in ...

In article
,
* Rob G wrote:
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.

I'd check again. The bolts on my SD1 cylinder head are approx 3/8 and go
into aluminium threads. 70 ft.lb.

A rule of thumb is using the correct ring spanner rather than socket set
will give approx the right torque with a good pull. You couldn't achieve
140 lb.ft doing this.

How come nobody appears to be able to read the units properly? in-lbs !=
ft.lb, it's a factor of 12 different.

(you're at least the third person to make this mistake on this thread, and I
think the other two I've seen have indeed gone "D'oh" or some such
equivalent).

Thanks Clive - isn't that what caused one of the Mars landers to come
a cropper ?!!

Rob