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what pinto head bolts would you use
jpindy3 - 31/5/09 at 06:18 PM

hi there,what head bolts do you thinks better out of the 2 std sets bolts,as you can get the early type that dos not strech,or the torx type that streches???

i would love to have the cash to get a 100quid set of arps its just not possable

[Edited on 31/5/09 by jpindy3]

RichardK - 31/5/09 at 06:21 PM

torx type although they are no where near £100 a tenner maybe! Ebay Clicky Linky Thingy

Cheers

Rich

omega0684 - 31/5/09 at 06:25 PM

i paid £12 for mine at local motor factor

jpindy3 - 31/5/09 at 06:31 PM

quote:
Originally posted by RichardK
torx type although they are no where near £100 a tenner maybe! Ebay Clicky Linky Thingy

Cheers

Rich


all it is i dont really like the way it tells you to tighten them,

last stage 55 flb,then wait and go 90dig,i dont know why thay didnt put a tauqe setting insted,i guess it might have to do with the bolts streching?

RichardK - 31/5/09 at 06:36 PM

I wouldn't worry mate, just follow the manual and you'll be fine.

Although if you do snap one don't blame me !!!!

Regards

Rich

gregs - 31/5/09 at 06:45 PM

common engineering practice i'm afraid - really is quite simple, tighten them to spec, run the engine up and tighten through the angle, nothing to be afraid of - do that when you get to subframe bolts and 6ft torque wrenches..... )

quote:
Originally posted by jpindy3
quote:
Originally posted by RichardK
torx type although they are no where near £100 a tenner maybe! Ebay Clicky Linky Thingy

Cheers

Rich


all it is i dont really like the way it tells you to tighten them,

last stage 55 flb,then wait and go 90dig,i dont know why thay didnt put a tauqe setting insted,i guess it might have to do with the bolts streching?

MautoK - 31/5/09 at 07:11 PM

I've just refitted my head with Torx bolts that I bought from Gasketsforclassics at £8.50 the set + P&P.
It's a bit scary winding on the final 90 degrees - I was just waiting for one to ping and land me the other side of the garage!
John.

MikeRJ - 31/5/09 at 08:41 PM

quote:
Originally posted by jpindy3
last stage 55 flb,then wait and go 90dig,i dont know why thay didnt put a tauqe setting insted,i guess it might have to do with the bolts streching?


That's the whole point of stretch bolts, you can't just give a torque figure because once the bolts start yielding, the torque is fairly constant. An angular torque is the only accurate way to use these bolts.

SteveWalker - 31/5/09 at 08:53 PM

quote:
Originally posted by jpindy3

all it is i dont really like the way it tells you to tighten them,

last stage 55 flb,then wait and go 90dig,i dont know why thay didnt put a tauqe setting insted,i guess it might have to do with the bolts streching?


I was reading about this last week and apparently it's more accurate than a torque setting. When the bolt is already pretty tight, the last stage of tightening can be seriously affected by whether or not there is any lubricant under the bolt, the roughness of the surface, etc., but before the last stage of tightening, the effect is less - therefore torque for the first steps and a preset angle for the last.

jpindy3 - 31/5/09 at 09:32 PM

thanks you lot,
im gona go with the older type,as all of the pinto turbo boys recon arp or the older non strech type,thay say thay are good to clamp down the head to take 1bar,on a reinz gazket,so il give these a try.
thanks