Hardened valve seats
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=146832
Printed Date: 23 Aug 2025 at 6:43pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Hardened valve seats
Posted By: Smiling John
Subject: Hardened valve seats
Date Posted: 24 Jan 2018 at 5:43pm
| Did all D17's have hardened valve seats? Thanks. |
Replies:
Posted By: SteveM C/IL
Date Posted: 24 Jan 2018 at 7:38pm
| they were made when leaded gas was the norm so I'm guessing not any had em.You can install them. |
Posted By: LeonR2013
Date Posted: 24 Jan 2018 at 7:59pm
| That's right. More that likely it would need stainless valves, so if you put them in then you would need seats. When apart just check them and then you'll know. If you need to save a buck and your head shop is willing, you can put late model Ford 302 ex valves and Chevy intake in the head. Works real good. There are so many of those heads laying around, that you can find a real good used set of them. |
Posted By: Brian G. NY
Date Posted: 24 Jan 2018 at 10:33pm
|
The WD, WD-45 and D-17 all come from the factory with hardened seats for the exhaust valves. Seats for the intakes are available from A-C but the head must be counterbored to accept them.
|
Posted By: DrAllis
Date Posted: 25 Jan 2018 at 12:21pm
| A-C was light years ahead of the competition on wet sleeves and hard exhaust valve seats. Someone please tell me if anyone had wet sleeves before 1934 ?? (the first WC era). |
Posted By: cpg
Date Posted: 25 Jan 2018 at 2:08pm
|
The Farmall Regular and F-series tractors had wet sleeve engines I believe; with the Regular starting in 1923 and the F-20 being the upgrade of that tractor in 1932. I have an F-20 and have never had it that far apart but I am about 99% sure they have a wet sleeve engine as did the Regular. When IH put in hardened valve seats I have no idea. |
Posted By: DrAllis
Date Posted: 25 Jan 2018 at 4:23pm
| Well, if they did have wet sleeves in the F-20/Regular era, they went away from them in 1939 with the M and the H. |
Posted By: LB0442
Date Posted: 25 Jan 2018 at 5:55pm
| I have a IH 300 utility with a 169 gas engine I bought about 20 years ago. It is a 1956 model. I bought it cheap, with a dead hole. It broke a chunk off of an intake valve. It had both intake and exhaust were hardened seats. I don't think it had been apart before. It has dry sleeves in it though. Have to have a pretty good sleeve puller to get those out. I redid the TA and resealed the trans at the same time, pertronix ignition and an alternator. Been a pretty good unit, haven't done much to it since then. |
Posted By: CTuckerNWIL
Date Posted: 25 Jan 2018 at 6:18pm
|
H Farmall had dry sleeves too. Guy I used to work with pressed in new ones for his restore job. ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: SteveM C/IL
Date Posted: 25 Jan 2018 at 7:59pm
They go in much easier after a few hours in the freezer.
|
CTuckerNWIL wrote:Posted By: CrestonM
Date Posted: 25 Jan 2018 at 8:30pm
| I re-sleeved my 8N when I overhauled it, and that's one thing I like about the pre-1950 N's. The dry sleeves almost fall in with very little pressure after being in the freezer a while. No press needed. |