Re: lock tight on connecting rod bolts
[Re: moparmikethree]
#1389722
02/18/13 02:55 PM
02/18/13 02:55 PM
|
Joined: Dec 2007
Posts: 18,157 Mass
DAYCLONA
I Live Here
|
I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
|
Quote:
Would it be a good idea to put lock tight on connecting rod nuts/bolts.
No, the only thing to put on the threads is oil, FYI there are 2 torque values for a fastner, wet or dry, use the proper one
Mike
|
|
|
Re: lock tight on connecting rod bolts
[Re: RapidRobert]
#1389727
02/19/13 08:37 AM
02/19/13 08:37 AM
|
Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
|
Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
|
Quote:
I use 30wt non synthetic eng oil on rod bolts then blow em off with shop air. After torquing I wouldn't have a problem with adding some green loctite to the threads on the end which the "green" is designed to wick down into threads with them assembled tho with them already coated with a thin film of eng oil the loctite might not bond properly but a person could clean the end threads with a shot of brake kleen or similar first & it'd be worth a try & cheap & I'd sleep better at night . I've only has a con rod bolt come loose once & that was on a DD /6
Are you kidding us? I can't believe you even posted this?
|
|
|
Re: lock tight on connecting rod bolts
[Re: ek3]
#1389728
02/19/13 10:36 AM
02/19/13 10:36 AM
|
Joined: Jan 2003
Posts: 75,071 U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 75,071
U.S.S.A.
|
Quote:
arp makes a very good rod bolt lube. you need to understand that the rod bolt is tightened to yeild a stretch value. this places a clamping load on the bolt. if the bolts are properly installed [not binding at the shank]they should torque to specs.the use of lube greatly effects the actual load applied. a bolt can bind and yeild a false torque spec,then loosen up with use. i would never use lock tite....
ARP lube requires a different torque spec than using oil , the factory manual torque specs are using oil .
|
|
|
Re: lock tight on connecting rod bolts
[Re: Challenger 1]
#1389729
02/19/13 10:37 AM
02/19/13 10:37 AM
|
Joined: Jan 2003
Posts: 75,071 U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 75,071
U.S.S.A.
|
Quote:
Quote:
I use 30wt non synthetic eng oil on rod bolts then blow em off with shop air. After torquing I wouldn't have a problem with adding some green loctite to the threads on the end which the "green" is designed to wick down into threads with them assembled tho with them already coated with a thin film of eng oil the loctite might not bond properly but a person could clean the end threads with a shot of brake kleen or similar first & it'd be worth a try & cheap & I'd sleep better at night . I've only has a con rod bolt come loose once & that was on a DD /6
Are you kidding us? I can't believe you even posted this?
I can ...
|
|
|
Re: lock tight on connecting rod bolts
[Re: JohnRR]
#1389731
02/20/13 01:30 AM
02/20/13 01:30 AM
|
Joined: Jun 2012
Posts: 1,899 MYRTLE BEACH SOUTH CAROLINA
ek3
top fuel
|
top fuel
Joined: Jun 2012
Posts: 1,899
MYRTLE BEACH SOUTH CAROLINA
|
Quote:
Quote:
arp makes a very good rod bolt lube. you need to understand that the rod bolt is tightened to yeild a stretch value. this places a clamping load on the bolt. if the bolts are properly installed [not binding at the shank]they should torque to specs.the use of lube greatly effects the actual load applied. a bolt can bind and yeild a false torque spec,then loosen up with use. i would never use lock tite....
ARP lube requires a different torque spec than using oil , the factory manual torque specs are using oil .
DUH! I SAID A BOLT IS TIGHTENED TO YEILD A STRETCH VALUE- NOT TORQUE. please re-read post. .. yea i know,they dont make good quaker state like the old days,that will throw the old manuals specs off a mile rite there.. while you are at it,if you want to ensure the rod bolts are the best they can be,use arp brand bolts. they will require about 50 lbs torque to yeild proper stretch as compared to the stock 45 lbs... Also, rod bolts stretch with each use-
|
|
|
Re: lock tight on connecting rod bolts
[Re: ek3]
#1389732
02/20/13 10:46 AM
02/20/13 10:46 AM
|
Joined: Jan 2003
Posts: 75,071 U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 75,071
U.S.S.A.
|
|
|
|
Re: lock tight on connecting rod bolts
[Re: JohnRR]
#1389733
02/20/13 11:08 AM
02/20/13 11:08 AM
|
Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
master
|
master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
|
Quote:
Quote:
Quote:
Quote:
arp makes a very good rod bolt lube. you need to understand that the rod bolt is tightened to yeild a stretch value. this places a clamping load on the bolt. if the bolts are properly installed [not binding at the shank]they should torque to specs.the use of lube greatly effects the actual load applied. a bolt can bind and yeild a false torque spec,then loosen up with use. i would never use lock tite....
ARP lube requires a different torque spec than using oil , the factory manual torque specs are using oil .
DUH! I SAID A BOLT IS TIGHTENED TO YEILD A STRETCH VALUE- NOT TORQUE. please re-read post. .. yea i know,they dont make good quaker state like the old days,that will throw the old manuals specs off a mile rite there.. while you are at it,if you want to ensure the rod bolts are the best they can be,use arp brand bolts. they will require about 50 lbs torque to yeild proper stretch as compared to the stock 45 lbs... Also, rod bolts stretch with each use-
Oh boy another narcissistic [censored] with internet access ... wonderful ...
ARP bolt lube is for ARP bolts, ARP is the only maker I know of that gives a spec for bolt stretch. You are ASSuMEing that everyone uses ARP bolts and owns a bolt stretch gauge , DON'T ...
I've used those old O.E.M. bolts over and over for 40+years and have yet have the first one come loose !!
|
|
|
Re: lock tight on connecting rod bolts
[Re: 62maxwgn]
#1389734
02/20/13 04:37 PM
02/20/13 04:37 PM
|
Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 16,376
|
UNLESS a rod bolt is a torque-to-yield type IT DOES NOT GET LONGER with each use. Torque is generally set at 75% - 80% of yield strength. That is still in the elastic region. You have to exceed yield strength to permanently elongate the bolt, called plastic deformation. R.
|
|
|
|
|