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ARP Torques
Posted: Fri Feb 08, 2008 3:00 pm
by ian.stewart
Can somebody confirm the torque setting for my ARPs, [Rover]
Head studs, 65ftlbs, using the correct molly grease,
Rod bolts. 40ftlbs, again using the correct grease,
Mains studs, 90ftlbs greased again.
The only reason I ask is I have no figures for these fixings, apart from a grubby bit of paper with these figures scribbled on it
Ian
Posted: Fri Feb 08, 2008 7:01 pm
by kiwicar
If its any help, the sheet with my main studs says 7/16 arp 190,000 series torque to 70 ft lbs with molly lubricant and 85 without.
Mike
Posted: Fri Feb 08, 2008 7:40 pm
by badger
I wouldn't go 90 on the mains studs into a rover block. As far as I am aware, the figures quoted by ARP assume fixing in a cast iron block. I use 80 mains, 40 big-ends and 65 to 70 heads, all lbft.
Posted: Fri Feb 08, 2008 8:39 pm
by mgbv8
Badgers figures seem to match the ones I have too Ian.
Posted: Fri Feb 08, 2008 8:57 pm
by ian.stewart
Posted: Sat Feb 09, 2008 11:33 am
by Coops
Ian, how desperate are you for the settings?
as i can pop over my mums today and get my paper work that came with my studs, and text it over to you,
Posted: Sat Feb 09, 2008 12:36 pm
by ian.stewart
Cheers mate, not to desperate,, Im only not sure about the mains now, and I found the info on the mains in a box in the loft,
Posted: Sat Feb 09, 2008 4:14 pm
by Coops
i can't find my rod settings, but
on ARP paperwork:
mains screw studs hand tight into block and torque to 90ft lbs (same as what mine are done to)
head studs 70 ft lbs but due to aluminium expansion torque to 65 ft lbs (same as what mine are done to)
both are with arp moly assembly lube,
is the 40 ft lbs correct for rod bolts? if so i will make a note for my records for when i do mine,
Posted: Sat Feb 09, 2008 5:13 pm
by ian.stewart
40 is correct
Posted: Sat Feb 09, 2008 5:33 pm
by Coops
ta mate
Posted: Sun Apr 26, 2009 7:14 am
by topcatcustom
I have none of the ARP lube stuff- would a drop of assembly lube do instead or should I torque dry or what? Its the head studs I'm on now!
Also- what is the correct procedure to put the studs in? They run out of thread before they bottom out so just wind them in and finish with a hex key by hand?
TC
Posted: Sun Apr 26, 2009 9:54 am
by stevieturbo
Arent the main studs 1/2" ?? They will take 90lbft no problem.
In fact, I wound my 1/2" head studs and mains to around 110-120 lbft I think ?
7/16" would be circa 70-75lbft
Generally they simply go by fastener size.
Posted: Mon Apr 27, 2009 8:03 am
by topcatcustom
Any advice about the lube?!! Or how tight the studs should be? Would quite like to get the heads torqued up tonight
Posted: Mon Apr 27, 2009 8:20 am
by stevieturbo
Use ARP Lube. ( basically Moly lube )
Studs should be finger tight, although I do tend to give them a little nip myself.
Posted: Mon Apr 27, 2009 9:03 am
by topcatcustom
Is that the same as cam lube?
