Hi, just looked at my pinto head and the bolts are a torx socket fitting, does anyone know what size I need.
Thanx
Mick

Are you sure they're a torq? I thought they were splined.

T 55 I think?

If memory serves, the later ones were torx headed to identify them as allegedly stretch bolts, so check the lengths when out and clean. BUT I could be wrong.

IIRC the early ones were splined and not stretch bolts, allegedly safe to reuse.

The later bolts were Torx and stretch so need replacing, T55 sounds the right size. Note the tightening sequence, which calls for something like torquing down in stages then another 90 deg after that.

Haynes manual has all the info.

Agree T55. I would suggest that if you need to buy one you get a one piece Impact one. They need a lot of grunt and the std ones I think are really not up to it. This is the one I have, and been no probs.

T55 Torx Bit Socket 1/2 Drive FRANKLIN TOOLS TIS55 Impact Professional Quality | eBay

Thanx guys for info.
I will get new head bolts to be on the safe side.

I bought mine from the local spares shop for the Pinto head bolts and they had replacement bolts at about £1 each as well. The kit was a couple of sockets for head and tensioner bolts and it did the job.

Would defn go for the new bolts ,not sure what you are using it for but I use the Reinz ones with their head gasket.Good quality and not silly prices. Get mine for Matt Lewis.

quote:

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Originally posted by jollygreengiant
If memory serves, the later ones were torx headed to identify them as allegedly stretch bolts, so check the lengths when out and clean. BUT I could be wrong.

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Eat your wheaterbix first you'll need it for the last 90 degrees

That so called stretch bolts need replacing every time is a fallacy.
They do deform into the lower endof the plastic range but this doesn’t weaken the bolts in fact it actually increases the elastic limit of the bolt and dosen't effect the UTS of the bolt. Provided the bolts have not been grossly over tightened they will survive several tightening cycles without causing any concern.

quote:

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Originally posted by britishtrident
That so called stretch bolts need replacing every time is a fallacy.
They do deform into the lower endof the plastic range but this doesn’t weaken the bolts in fact it actually increases the elastic limit of the bolt and dosen't effect the UTS of the bolt. Provided the bolts have not been grossly over tightened they will survive several tightening cycles without causing any concern.

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Thanx again lads. I knew this site was brill. Loaded with good advice.
Cheers