D19 262 question
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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=92976
Printed Date: 07 Sep 2025 at 4:06pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D19 262 question
Posted By: Alex (wi)
Subject: D19 262 question
Date Posted: 27 Jul 2014 at 8:49pm
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can I convert a gas 262 engine block to diesel? just curious, I apologize if this is a dumb question.
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Replies:
Posted By: Acdiesel
Date Posted: 27 Jul 2014 at 9:22pm
Yes, only the block you will have to change the liners.
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D19 Diesel,D17 Diesel SER.3
2-D14, 2-D15 SER.II WF/NF
D15 SER.2 DIESEL
D12 SER.I, D10 Ser.II
2-720'S D21 Ser. II
Gmc,caterpillar
I'm a pharmacist (farm assist) with a PHD (post hole digger)
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Posted By: Cen IA John
Date Posted: 27 Jul 2014 at 9:27pm
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Yes, a lot of D19D were converted to gas back in the day. The liners are the most important thing to be changed on the block. Hopefully your block will take the wider lip liners.
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Posted By: MACK
Date Posted: 27 Jul 2014 at 9:30pm
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Block, crank, rods, sleeves are the same and the cam will work , might even make it run better. MACK
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Posted By: Alex (wi)
Date Posted: 27 Jul 2014 at 9:41pm
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Thank you! I would think the cam would be different...
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Posted By: Calvin Schmidt
Date Posted: 28 Jul 2014 at 7:00am
We are in that process now with a D-17 diesel. Using a rebuilt C II gas block that didn't go to the field after it was rebuilt. As was said above, block, sleeves, crank, are the same. Cam is not the same. Diesel rods are drilled to oil the pins. Be sure to get a head gasket with the thicker fire rings and the ARP head stud kit. Have all the original A-C parts books to cross check part numbers.
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Nothing is impossible if it is properly financed
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Posted By: Brian Jasper co. Ia
Date Posted: 28 Jul 2014 at 10:40pm
My D17D series 1 has a gas combine block in it. The early 262 diesel has the water pump on the head like a WD45D. My head was in very good condition, but I couldn't find an early diesel block so I got a later block and made a plate to cover the water pump hole. It's been running like that for 3 years now. Diesel cams aren't the same, but you can use a gas cam in a diesel. The sleeves are the same. The only difference was years ago when the counterbores in the block would erode and drop the sleeves, A-C had a special tool for the mechanics to recut the bores deeper and a thicker flanged sleeve to make up the difference.
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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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