Pair of clamp head bolts

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Pair of clamp head bolts

Postby ermete trismegisto » Sat 04.06.2022, 11:37

Good morning gentlemen.
I had to change the head gasket, but I cant find the correct menagerie values. A friend told me that it's 4kgm the first step and 8kgm the second. But according to my mechanic they are too low. Does anyone who has done this job know or remembers the correct values?
( Forgive the mistakes, I translated it with google)
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Re: Pair of clamp head bolts

Postby Fredjohn » Sat 04.06.2022, 12:45

Have you looked at the workshop manual?

Section EC Page 37:

1st step 40nm
2nd step 78nm

Manual is available in Manuals section above when signed in.
:)
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Re: Pair of clamp head bolts

Postby chrism » Sat 04.06.2022, 14:09

Yep and since 1kg = 10N (as near as dammit, and so 1kgm of torque = I0Nm of torque) reckon you're spot on ermete.
Here's hoping someone who's actually done that job will verify...
Loadsa luck :)
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Re: Pair of clamp head bolts

Postby M100-NC » Sat 04.06.2022, 14:54

For those who are older and from the other side of the world, the torque specs are

Step 1 29 ft. lbs.
Step 2 58 ft. lbs

My 1980's Snap-On torque wrenches still work.
I am in the US and have a LARGE collection of M100 parts available for sale, both new and used.
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Re: Pair of clamp head bolts

Postby dapinky » Sat 04.06.2022, 18:35

M100-NC wrote:My 1980's Snap-On torque wrenches still work.


John,

I would expect them to work, being so new....... mine dates from 1972, and has been regularly checked/calibrated over the years in a friends ownership before I inherited it to complement my "new" one from 1991. Both were last checked about 3 years ago and were still spot on.....

.... I have a selection of 'cheap' ones collected over the years, and only one (a Draper Expert) has ever been worryingly inaccurate, so it went in the bin.

They are okay for most jobs, but when it comes to engine work I like to open the red box and feel the quality.
Dave

Just the one now, but this one's mine! - and it will be finished eventually..... - but also temporary custodian of a project until it is finished enough for Angie to drive it


...oh, and a 2006 Freelander destined for the jungles of The Gambia - 4500 miles across roads, desert and tracks - what could possibly go wrong?
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Re: Pair of clamp head bolts

Postby M100-NC » Sat 04.06.2022, 23:16

Best to stick with the best. AMEN!
I am in the US and have a LARGE collection of M100 parts available for sale, both new and used.
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