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  Can rod bolt get loose ?

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Author Topic:   Can rod bolt get loose ?
Pierre
Gearhead

Posts: 366
From: France
Registered: Apr 2002

posted 10-04-2002 04:28 AM     Click Here to See the Profile for Pierre   Click Here to Email Pierre     Edit/Delete Message   Reply w/Quote
I just finished changing my rod bearing since they didn't look too great (had a weak oil pump for years). Had a question though, it seems that rod bolt assembly (stock set up) could easily get loose (no loctite, no lock washer,....)
I torqued them to 22ft/pds. I am sure they will not loosen up ?

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mustangzrule
Journeyman

Posts: 87
From: Orion, MI
Registered: Sep 2002

posted 10-04-2002 09:58 AM     Click Here to See the Profile for mustangzrule   Click Here to Email mustangzrule     Edit/Delete Message   Reply w/Quote
What engine? My [u]memory[/u] is telling me 40 ft lb for rod bolts and I definately use loctite.

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Clark
Gearhead

Posts: 592
From: Rowlett,Texas
Registered: Aug 99

posted 10-04-2002 10:33 AM     Click Here to See the Profile for Clark   Click Here to Email Clark     Edit/Delete Message   Reply w/Quote
Pierre,
This sounds like the correct torque for 5/16 rod bolts, The 40 is for 3/8. Believe me if your wrong the 40 will snap the 5/16 bolt. Loctite is a good thing to use but is not called out in the manual, believe it or not they stay torqued.

------------------
69 393W Sportsroof Deluxe

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mustangzrule
Journeyman

Posts: 87
From: Orion, MI
Registered: Sep 2002

posted 10-04-2002 11:40 AM     Click Here to See the Profile for mustangzrule   Click Here to Email mustangzrule     Edit/Delete Message   Reply w/Quote
Clark, you are right. I was assuming 351W. I should have been more clear in my post.

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Pierre
Gearhead

Posts: 366
From: France
Registered: Apr 2002

posted 10-04-2002 02:42 PM     Click Here to See the Profile for Pierre   Click Here to Email Pierre     Edit/Delete Message   Reply w/Quote
Thanks guys !!
Yes it is definitely 5/16 (302). I probably should have used loctite but like you say no manual (ford or Tom Monroe's)mentions it so I did not. Must be safe.

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Butch Jennings
Gearhead

Posts: 595
From: No. California
Registered: Apr 2000

posted 10-04-2002 09:11 PM     Click Here to See the Profile for Butch Jennings   Click Here to Email Butch Jennings     Edit/Delete Message   Reply w/Quote

Rod bolts should be installed and torqued with motor oil or moly lube (if they were re-sized with moly). Loctite should never be used on rod, main or head bolts.

Butch

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