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Author Topic: ARP head bolt torque  (Read 12132 times)

April 18, 2010, 12:47:57 pm

smiffie88

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ARP head bolt torque
« on: April 18, 2010, 12:47:57 pm »
i know this has probably been asked a hundred times before but what torque are people doin arp heads bolts to? its got a steel head gasket that was changed about 1000 miles ago and its gone already. im getting massive amounts of pressure in the coolant system thought the head might have lifted as all the surfaces were clean and flat.
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Reply #1April 18, 2010, 01:19:10 pm

redneck_vdub

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Re: ARP head bolt torque
« Reply #1 on: April 18, 2010, 01:19:10 pm »
i recommend ARP head STUDS.
stage 1- 30ft-lb
stage 2- 44 ft-lb
stage 3- additional 90 degrees
stage 4- another 90 degrees

Hopefully this is helpful to you.
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EGR delete, 2.25" turbo back, air box mod, Giles injectors, VNT 17, ARP headstuds, 14LB flywheel, boost and EGT gauges.
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Reply #2April 18, 2010, 01:57:57 pm

rabbitman

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Re: ARP head bolt torque
« Reply #2 on: April 18, 2010, 01:57:57 pm »
Quote from: redneck_vdub on April 18, 2010, 01:19:10 pm
i recommend ARP head STUDS.
stage 1- 30ft-lb
stage 2- 44 ft-lb
stage 3- additional 90 degrees
stage 4- another 90 degrees

Hopefully this is helpful to you.

You sure that torque sequence isn't for the stock bolts???? I've never heard of stretching ARP studs.
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I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
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Reply #3April 18, 2010, 02:06:11 pm

smiffie88

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Re: ARP head bolt torque
« Reply #3 on: April 18, 2010, 02:06:11 pm »
yeh that does sound like the torque sequence for stock bolts
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Reply #4April 18, 2010, 04:28:44 pm

redneck_vdub

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Re: ARP head bolt torque
« Reply #4 on: April 18, 2010, 04:28:44 pm »
yes that is the torque for the stockers. My mistake.
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'01 Golf TDI "The Redneck V-Dub"

360,000kms on the body; 17,000kms on the engine :D

EGR delete, 2.25" turbo back, air box mod, Giles injectors, VNT 17, ARP headstuds, 14LB flywheel, boost and EGT gauges.
Oo=w=oO
Reply #5April 19, 2010, 06:02:52 am

theman53

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Re: ARP head bolt torque
« Reply #5 on: April 19, 2010, 06:02:52 am »
100ft/lbs should seal and give you a little more room for error. I think 53 willy's did 110ft/lbs and no issues with breaking.
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Reply #6April 19, 2010, 08:44:13 am

blackdogvan

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Re: ARP head bolt torque
« Reply #6 on: April 19, 2010, 08:44:13 am »
every time this thread happens I say the exact same thing!  WHAT LUBE??!! The ARP moly shloob decreases static & dynamic friction within the fastner significantly more than motor oil or other lubes. What chould be well over 100ftlb with motor oil will be in the 80ftlb range with the arp lube & get the same clamping load. Do the oil torque with moly & you run the risk of taking your studs into yield.

PS there are new bastardized cummins studs available for us that are significantly stronger than the cosworth PN we've all been using for years. Kermatdi has them.

r
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Reply #7April 19, 2010, 08:47:18 am

theman53

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Re: ARP head bolt torque
« Reply #7 on: April 19, 2010, 08:47:18 am »
yeah I meant 100 ft/lbs with the ARP lube...wily's did the 110 with it as well.
I believe with this diameter stud yeild is around 130ft/lbs with their lube...you want to be around 80% or less of that.
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Reply #8April 19, 2010, 11:37:20 am

rallydiesel

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Re: ARP head bolt torque
« Reply #8 on: April 19, 2010, 11:37:20 am »
ARP just came out with some new studs specifically for vw diesels. New torque is 125 lb/fts.

Part # is 204-4706
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Reply #9April 19, 2010, 11:38:37 am

truckinwagen

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Re: ARP head bolt torque
« Reply #9 on: April 19, 2010, 11:38:37 am »
were did you get that part number?
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Reply #10April 19, 2010, 12:09:37 pm

rallydiesel

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Re: ARP head bolt torque
« Reply #10 on: April 19, 2010, 12:09:37 pm »
mjmautohaus.
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2006 Jetta TDI - gtb1749v, Malone 2, Frank's Titan 2 cam, VR6 clutch....
1991 Jetta TD - sold :(
2001 Golf TDI - Son's
1981 Rabbit - BEW tdi swap project

"ONCE YOU GO CLACK, YOU NEVER GO BACK"
Reply #11April 21, 2010, 01:25:44 pm

smiffie88

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Re: ARP head bolt torque
« Reply #11 on: April 21, 2010, 01:25:44 pm »
yeh should of said arp moly lube i was thinking of around 100lbs/ft so ill go with that

cheers for the advice chaps
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Reply #12May 11, 2010, 11:32:29 pm

oldpoopie

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Re: ARP head bolt torque
« Reply #12 on: May 11, 2010, 11:32:29 pm »
cheapest place to get these new ARP studs is www.nicktane.com
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Reply #13May 18, 2010, 03:33:54 pm

oldskool rich

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Re: ARP head bolt torque
« Reply #13 on: May 18, 2010, 03:33:54 pm »
please post a video of ur car pissing on an evo 8)
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