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Cam Cap Bolts
Moderators: chrisu, paul doran, Taffus, KeithZ1R
Cam Cap Bolts
Chaps, what's the thoughts on the torque settings for the cam cap bolts. The book says 104lbs ft , but i though that was very high and yesterday had a mare when one snapped when i was torquing them up. Luckily i managed to get it out, but im now concious of snapping another one. Paul
Re: Cam Cap Bolts
Way too much for M6 into ally .
Get a short ( 5 inch ) 10mm combi spanner and just nip them tight .
Get a short ( 5 inch ) 10mm combi spanner and just nip them tight .
0172 . Geoff Parr
Re: Cam Cap Bolts
That setting is wrong,been aware of it for yonks,just nip them up as already said..
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."
-Han Solo
You can't polish a turd, but you can roll it in glitter
Salad is what real food eats.
Anon
PUM 673
-Han Solo
You can't polish a turd, but you can roll it in glitter
Salad is what real food eats.
Anon
PUM 673
Re: Cam Cap Bolts
Cheers chaps, you've just confirmed my suspicions.
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- Hardcore
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Re: Cam Cap Bolts
There are two different finish on bolts for these naturally from different years, Chrome and bare steel the chrome use the 7-8 ft/lb and the bare steel use 12 ft/lb, but i always use a short 10mm spanner and just nip them up like Z1parr says
Re: Cam Cap Bolts
104 inch/pounds not foot pounds but i assume you knew that.
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- 100Club
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Re: Cam Cap Bolts
kev edwards wrote:There are two different finish on bolts for these naturally from different years, Chrome and bare steel the chrome use the 7-8 ft/lb and the bare steel use 12 ft/lb, but i always use a short 10mm spanner and just nip them up like Z1parr says
Kev's very correct above...the weakest link will always be the softest material = i.e the 40+ year old alloy threads ! Each time they have been off & are then re-tightened again it will weaken the threads ..it can't help but to do that. Like Kev says just snug em up at 7 ft/lbs no more that all you need, as the constant upthrust on the Caps from the Valve springs act as giant spring washers. Heli - coiling with the head in situ is a proper pinless grenade !
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