TheAMCForum.com Homepage
Forum Home Forum Home > The Garage > AMC 6 Cylinder Engine Repair and Modifications
  New Posts New Posts RSS Feed - Head bolt torque specs accuracy
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Click for TheAMCForum Rules / Click for PDF version of Forum Rules
Your donations help keep this valuable resource free and growing. Thank you.

Head bolt torque specs accuracy

 Post Reply Post Reply
Author
Message
irish13jeff View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Aug/13/2011
Location: Florida
Status: Offline
Points: 181
Post Options Post Options   Thanks (0) Thanks(0)   Quote irish13jeff Quote  Post ReplyReply Direct Link To This Post Topic: Head bolt torque specs accuracy
    Posted: Jan/08/2019 at 8:56am
well my Chilton calls for all to be torqued to 85ft lbs.
However,when I opened my box of new ARP bolts in specifically said to only torque to 70ft lbs.
The inter web calls for 100ft lbs and 110ft lbs  on number 11 bolt only. Other sites call for 85ft lbs and only 80ft lbs on number 11.

 I only wanna do this once so clarification would be greatly appreciated 

Please don't tell my parents I'm a truck driver..... They think I'm a piano player in a whore house...

http://www.legionofjeepers.com
Back to Top
rocklandrambler View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Feb/09/2013
Location: Nanuet, NY
Status: Offline
Points: 3953
Post Options Post Options   Thanks (0) Thanks(0)   Quote rocklandrambler Quote  Post ReplyReply Direct Link To This Post Posted: Jan/08/2019 at 9:50am
What engine and year?
Past AMC's
1974 Hornet X (new)
1975 Gremlin X (new)
1964 Classic 660 Cross Country
1965 American 440-H
Back to Top
Trader View Drop Down
AMC Addicted
AMC Addicted


Joined: May/15/2018
Location: Ontario
Status: Offline
Points: 6762
Post Options Post Options   Thanks (0) Thanks(0)   Quote Trader Quote  Post ReplyReply Direct Link To This Post Posted: Jan/08/2019 at 9:54am
I'd be phoning ARP.
Lubricated bolts can go up to 15% less torque but that's 12.7 ft/lbs less and not 15 ft/lbs.
AMC always stated to install dry but most use a little engine oil and torque to spec with few problems.
I don't know about #11 at that torque - just seems wrong.
By default the TSM is correct.
Back to Top
irish13jeff View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Aug/13/2011
Location: Florida
Status: Offline
Points: 181
Post Options Post Options   Thanks (0) Thanks(0)   Quote irish13jeff Quote  Post ReplyReply Direct Link To This Post Posted: Jan/08/2019 at 9:58am
I’m guessing the reason for the #11 torque difference is due to the fact it’s at a water jacket. 
I just called ARP,they said to go by their specifications of 70 ft lbs using the supplied assembly lube and to just use thread sealer on #11


Edited by irish13jeff - Jan/08/2019 at 10:04am
Please don't tell my parents I'm a truck driver..... They think I'm a piano player in a whore house...

http://www.legionofjeepers.com
Back to Top
tomj View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Jan/27/2010
Location: earth
Status: Offline
Points: 7522
Post Options Post Options   Thanks (0) Thanks(0)   Quote tomj Quote  Post ReplyReply Direct Link To This Post Posted: Jan/09/2019 at 10:25pm
trust ARP. it's their fastener. bolts clamp part together by stretching, the stretch is a function of fastener material, etc. the A.R.P. is also far higher quality.

i've only bought them once -- still have them. i would DEFINITELY would replace 50 year old critical fasteners with ARP parts on every engine from now on. they're not even expensive! studs are superior to bolts, the torque is up at the top, not down in the block.

get the lube too. it's not grease, you'll be surprised how much better it all works.

here's my old notes on this: http://195.6ohv.com/HEAD/index.html



Edited by tomj - Jan/09/2019 at 10:27pm
1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5
http://www.ramblerLore.com

Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.402 seconds.
All content of this site Copyright © 2018 TheAMCForum unless otherwise noted, all rights reserved.
PROBLEMS LOGGING IN or REGISTERING:
If you have problems logging in or registering, then please contact a Moderator or