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ARP head bolt torque
by
smiffie88
on 18 Apr, 2010 12:47
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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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#1
by
redneck_vdub
on 18 Apr, 2010 13:19
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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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#2
by
rabbitman
on 18 Apr, 2010 13:57
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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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#3
by
smiffie88
on 18 Apr, 2010 14:06
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yeh that does sound like the torque sequence for stock bolts
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#4
by
redneck_vdub
on 18 Apr, 2010 16:28
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yes that is the torque for the stockers. My mistake.
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#5
by
theman53
on 19 Apr, 2010 06:02
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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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#6
by
blackdogvan
on 19 Apr, 2010 08:44
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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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#7
by
theman53
on 19 Apr, 2010 08:47
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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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#8
by
rallydiesel
on 19 Apr, 2010 11:37
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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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#9
by
truckinwagen
on 19 Apr, 2010 11:38
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were did you get that part number?
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#10
by
rallydiesel
on 19 Apr, 2010 12:09
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mjmautohaus.
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#11
by
smiffie88
on 21 Apr, 2010 13:25
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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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#12
by
oldpoopie
on 11 May, 2010 23:32
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#13
by
oldskool rich
on 18 May, 2010 15:33
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please post a video of ur car pissing on an evo
