displaying posts 1 to 8 of 8

Author Subject: ARP's
JWP EFi

Turbo Legend!

Location: edinburgh

Registered: 07 Mar 2010

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Post #1
Are ARP rod bolts the stretch type? can they be reused?

Hopfully be building up my new engine very soon and as its a very experimental build i may have to reuse the ARP's

should things go wrong

Also does the same tightening/torque procedure apply for these
Posted 19th Feb 2013 at 20:29
daveyboy

aka Jim Davey

Location: Southampton

Registered: 01 Oct 2007

Posts: 8,648

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Post #2
Rod bolts or head studs?

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Posted 19th Feb 2013 at 20:38
JWP EFi

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Registered: 07 Mar 2010

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Post #3
Rod bolts mate, infact - same for head studs, out of curiousity. will definately be using rod bolts though
Posted 19th Feb 2013 at 20:40
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

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Post #4
You certainly need to use "ARP Lube" on the threads of the bolts, I can tell you that. Yes

As for the same tightening torques, I honestly can't remember off the top of my head. Doh

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Posted 19th Feb 2013 at 20:41
JWP EFi

Turbo Legend!

Location: edinburgh

Registered: 07 Mar 2010

Posts: 2,163

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Post #5
stan_306gti6 wrote:
You certainly need to use "ARP Lube" on the threads of the bolts, I can tell you that. Yes

As for the same tightening torques, I honestly can't remember off the top of my head. Doh


ok mate. i heard you need a special socket to torque them, is this true?
Posted 19th Feb 2013 at 20:43
daveyboy

aka Jim Davey

Location: Southampton

Registered: 01 Oct 2007

Posts: 8,648

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Post #6
Rod bolts and head studs can be torqued multiple times. Can't remember how many, might be 6 but I can't remember for sure, but I doubt you'll have them on and off even that many times. As for the socket you just need an ordinary 12 point or bi-hex socket.

________________________________________

R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.

Some of my services: (See my for sale threads)
Engine mount/chassis repair
Solid Beam Mounts BACK IN PRODUCTION
Harness bars
Posted 19th Feb 2013 at 21:57
pete_rallye

Seasoned Pro

Location: Yorkshire

Registered: 12 Dec 2002

Posts: 5,253

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Post #7
The one's I used can be torqued multiple times until they have stretched beyond a certain point. Unfortunately you have to measure them as new to be able to tell when they have stretched past there limit, as I bought the engine second hand I have no idea what they were as new! Ideally use a stretch gauge rather than a torque wrench when tightening them up too,bit expensive for a single use though!

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Posted 19th Feb 2013 at 22:13
JWP EFi

Turbo Legend!

Location: edinburgh

Registered: 07 Mar 2010

Posts: 2,163

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Post #8
daveyboy wrote:
Rod bolts and head studs can be torqued multiple times. Can't remember how many, might be 6 but I can't remember for sure, but I doubt you'll have them on and off even that many times. As for the socket you just need an ordinary 12 point or bi-hex socket.


Thats good enough for me, cheers guys
Posted 19th Feb 2013 at 22:15

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