Construction and other equipment - HD3 cylinder head needed

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HD3 cylinder head needed

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=10467
Printed Date: 02 Oct 2024 at 1:27pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: HD3 cylinder head needed

Posted By: donw
Subject: HD3 cylinder head needed
Date Posted: 02 Apr 2010 at 3:21pm

The first step to my rebuild was to take the head into a local machine shop to be surfaced and checked. I got a call this morning telling me that there are several cracks in it. That said, I am looking for a head for the 4 cylinder diesel 175HP. If someone has one collecting dust, let me know please.
Thanks,
Don

Replies:

Posted By: TerryMN
Date Posted: 08 Apr 2010 at 7:01pm

Cracks are normal. Are they good or bad cracks. I think every 175 CID head is cracked. Was it leaking water? Do they go into the fire ring area?

Posted By: TramwayGuy
Date Posted: 08 Apr 2010 at 8:01pm

I agree; cracks in a precombustion chamber head is almost a given. Depends where the cracks are. Get a second opinion, have somebody with older diesel experience look at it, and if still in doubt, pressure test it.