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Registered
Join Date: Sep 2004
Location: Tonawanda NY
Posts: 964
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ARP head stud torque procedure/settings
Just putting the motor back together, looking for the torque procedure and settings. I recall a two stage procedure and a final torque at 36 ft-lbs. Anyone remember the intermediate and final torque value and procedure? Cant find it anywhere on their page. Thanks!
Tom
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82 930 Pearl White 3.3 964 cams, K27 HF, Kokeln, fuel enriched, IA fuel head mod, wur mod, crankfire, 2X plug, Aase worked heads. 1bar, GHL, zork, 23/33 bars, low, loud |
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Wo ist die Rennstrecke?
Join Date: Mar 2004
Location: St Johns, FL
Posts: 1,210
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According to their tech, you condition the threads by torquing the nuts 5 times - run it down, torque, loosen, do it again. Hopefully, you have their assembly lube for the threads.
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Registered
Join Date: Sep 2004
Location: Tonawanda NY
Posts: 964
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Thanks Don
I last put this engine together in 2002, at that point I thought it was in two steps the studs were torqued. 5X to full torque or is it done in stages? I also seem to remember there was a provision for 10-30 as lube but the setting was a little higher by a couple ft-lb. I know that little piece of paper has got to be lying around here somewhere...
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82 930 Pearl White 3.3 964 cams, K27 HF, Kokeln, fuel enriched, IA fuel head mod, wur mod, crankfire, 2X plug, Aase worked heads. 1bar, GHL, zork, 23/33 bars, low, loud |
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Wo ist die Rennstrecke?
Join Date: Mar 2004
Location: St Johns, FL
Posts: 1,210
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Quote:
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Macht Schnell
Join Date: Jun 2003
Location: PSL, FL
Posts: 861
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Quote:
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT |
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Registered
Join Date: Sep 2004
Location: Tonawanda NY
Posts: 964
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Just got off the horn with ARP and Raceware in two seperate conversations. ARP final torque 38 ft-lb and a two step procedure, first to 20 and then to 38. They highly reccommended using their specified lube as "some is more slippery than others, no sense taking a chance on a motor like that..." Raceware specs a three step for their studs, 1 to 15 ft-lb, 2 to 20 ft-lb 3 to 25 ft-lb with optimoly HT or antiseize compound. One for the archives... let the reassembly begin!
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82 930 Pearl White 3.3 964 cams, K27 HF, Kokeln, fuel enriched, IA fuel head mod, wur mod, crankfire, 2X plug, Aase worked heads. 1bar, GHL, zork, 23/33 bars, low, loud |
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Macht Schnell
Join Date: Jun 2003
Location: PSL, FL
Posts: 861
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Sounds familiar, now the fun begins!
.
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT |
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Registered
Join Date: May 2005
Location: Loxahatchee, florida
Posts: 2,894
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Quote:
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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's. 2019 Silverado 6.2L |
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Registered
Join Date: Aug 2008
Location: S. Florida
Posts: 321
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My APR instruction sheet says to use ARP lube. Liberally coat the bolt threads and bolt face, torque in two equal steps 19/19, final torque to 38ft/lbs. This five time back and forth torque conditioning method is not on the 4206 ARP instruction sheet.
A lot of threads say that this ARP torque is way to much. I find that suspect because the factory torque is 30+ ft/lbs. I do not think 8 ft/lbs more is going to put too much stress on the barrels/heads. |
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Smart quod bastardus
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Does anyone know if you need to retorque or at least recheck the torque on ARP studs after 1000miles of break in time?
Its a PITA to try to retorque the studs with the engine in the car so was hoping this is not necessary. Thanks, Fred
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1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, full bay intercooler, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.95 bar max ---"When you're racing it's life! Anything else either before or after, is just waiting" |
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Registered
Join Date: Sep 2004
Location: Tonawanda NY
Posts: 964
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see post 6. everything you need to know
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82 930 Pearl White 3.3 964 cams, K27 HF, Kokeln, fuel enriched, IA fuel head mod, wur mod, crankfire, 2X plug, Aase worked heads. 1bar, GHL, zork, 23/33 bars, low, loud |
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Smart quod bastardus
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This does not answer my question.
Post 6 talks about the procedure to torque not whether they need to be checked after running the engine for the first 1000 miles. What did ARP say when you asked them this question of retorqing?
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1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, full bay intercooler, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.95 bar max ---"When you're racing it's life! Anything else either before or after, is just waiting" |
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Brando
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After a thousand miles are we not supposed to do the valves anyway? It's easy while your there. I'd just do it as a check with the torque wrench just to do it.
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Turbo powa! 1977 911s. it's cool |
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Smart quod bastardus
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Quote:
Just trying to see if this is a possible occurence.
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1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, full bay intercooler, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.95 bar max ---"When you're racing it's life! Anything else either before or after, is just waiting" |
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Brando
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My valves were loose. Not sure why. I was told or read to readjust and retorque after 1000 miles. I put the torque wrench on them and felt good about the tightness but I'm still glad I did it. I used the arp lube origionaly when assembling though. It's a time to do that and change oil and filters and look things over real closely so it's not too far fetched to just give it good once over.
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Turbo powa! 1977 911s. it's cool Last edited by quattrorunner; 01-07-2013 at 11:51 AM.. Reason: forgot |
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Banned
Join Date: Nov 2007
Location: Rockwall, Texas
Posts: 8,559
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When I checked the torque on my Raceware stud nuts, first time following an overhaul (about 1500 miles), probably 1/3 of them turned slightly in order to reach the setting on my torque wrench. This is a real gray area, however, as who knows if the resistance on the threads etc. is the same, or even close, to what it was during the original assembly . . .
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beancounter
Join Date: Jan 2008
Location: Weehawken, NJ
Posts: 3,593
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I followed Wayne's book, which IIRC says to check torque on head studs and check/reset valve lash at 500mi. None of my ARP head studs needed additional torque at that point. Haven't touched them since.
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Jacob Current: 1983 911 GT4 Race Car / 1999 Spec Miata / 2000 MB SL500 / 1998 MB E300TD / 1998 BMW R1100RT / 2016 KTM Duke 690 Past: 2009 997 Turbo Cab / 1979 930 |
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Brando
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I did, I checked them last time I had it opened up and nothing, nothing to tighten at all.
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Turbo powa! 1977 911s. it's cool |
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