Cracks in a D17 diesel head
Printed From: Unofficial Allis
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=138362
Printed Date: 30 Dec 2025 at 8:26pm
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Topic: Cracks in a D17 diesel head
Posted By: danraley88
Subject: Cracks in a D17 diesel head
Date Posted: 13 May 2017 at 7:48am
I have a D17 diesel head with hair line cracks at the hole at the end of the injector tip. Can this be fixed or does it need to be fixed. Thanks for any help.
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1945 WC, 1948 G, 1950 WD, 1956 WD45D 1959 D10,1966 D12, D15 Series II, 1959 D17D, 1959 D17, 1964 D17 Series IV, 1971 185
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Replies:
Posted By: SteveM C/IL
Date Posted: 13 May 2017 at 10:15am
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some one will know but I think on those ,as long as cracks don't go to valve seat you are ok.
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Posted By: GregLawlerMinn
Date Posted: 13 May 2017 at 12:51pm
Pressure test the head; if the crack(s) don't leak you can repair the cracks ("stake" them?) and/or use the head. Be sure to allow the engine to cool down after running before stopping the engine.
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What this country needs is more unemployed politicians-and lawyers.
Currently have: 1 D14 and a D15S2.
With new owners: 2Bs,9CAs,1WD,2 D12s,5D14s,3D15S2s, 2D17SIVs,D17D,1D19D;1 Unstyled WC
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Posted By: danraley88
Date Posted: 15 May 2017 at 5:55am
Thanks I will have the head pressure tested and see what happens. This tractor is new to me and was in boxes when I bought it.
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1945 WC, 1948 G, 1950 WD, 1956 WD45D 1959 D10,1966 D12, D15 Series II, 1959 D17D, 1959 D17, 1964 D17 Series IV, 1971 185
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Posted By: Brian Jasper co. Ia
Date Posted: 15 May 2017 at 8:48am
Check your sleeve standout. They were known for the sleeves sinking in the block and blowing the gasket. If the sleeves are low, you really need to fix that or you're going to have trouble holding a head gasket.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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