Construction and other equipment - Allis d262 diesel motor help required

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Allis d262 diesel motor help required

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=127323
Printed Date: 19 Aug 2024 at 2:20am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Allis d262 diesel motor help required

Posted By: rangertown
Subject: Allis d262 diesel motor help required
Date Posted: 16 Aug 2016 at 7:43am

I am currently restoring a allis dd grader fitted with the d262 diesel motor, i have comprehensively rebuilt the motor and when test running the motor before refitting it i noticed it has a loud heavy knock, i have dismantled it twice now to locate the problem but no signs of any faults?

Has had full rebuild kit, pistons, liners, crank grind and matched big end shells, fuel pump and injector rebuild, head overhaul with new valves.

starts easily and has 35 psi oil pressure.

Any help would be much appreciated, thanks.

Replies:

Posted By: TramwayGuy
Date Posted: 16 Aug 2016 at 12:56pm

Piston hitting head? Or valve?

Posted By: rangertown
Date Posted: 17 Aug 2016 at 3:32am

The sound seems to match that noise, but cant see any trace of it after removing the head.