Farm Equipment - ARP rod bolts-426

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ARP rod bolts-426

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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=6802
Printed Date: 16 Jan 2025 at 11:12am
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Topic: ARP rod bolts-426

Posted By: SteveM C/IL
Subject: ARP rod bolts-426
Date Posted: 19 Jan 2010 at 8:56am

Now that AGCO supplies ARP rod bolts for the 426,what is the torque spec? OEM 12pt bolt is something like 67.5 lb/ft.

Replies:

Posted By: injpumpEd
Date Posted: 19 Jan 2010 at 12:21pm

they are sold as a pair(one rod), and come with a tech bulletin for torquing procedures. I believe it was to be torqued to 60, and backed off 3 times, then final torqued to 80, or 85, using oil for lube, not moly paste. I am going off memory here, so I may be off a little on #'s. important part is they come with the bulletin, and are reasonably priced from Agco. will re-post tonite once I get the sheet out.

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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!

Posted By: SteveM C/IL
Date Posted: 19 Jan 2010 at 11:01pm

$22.80 apiece at my AGCO guy and come in a package of 6."Reasonable" if you consider the money saved from a broken rod bolt.LOL!Probably still do it.

Posted By: Calvin Schmidt
Date Posted: 20 Jan 2010 at 9:37am

I've used these ARP/AGCO rod bolts in two D-21 engines. They make me feel at lot more confident in the engine especially with the one D-21 that I bought having a rod hanging out through the block. I convinced my neighbour to use ARP head bolts in his D-19 diesel.