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Smiling John 
Bronze Level
Joined: 27 Sep 2009
Location: NY
Points: 69
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 Topic: Hardened valve seats
Posted: 24 Jan 2018 at 5:43pm |
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Did all D17's have hardened valve seats? Thanks.
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8466
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Posted: 24 Jan 2018 at 7:38pm |
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they were made when leaded gas was the norm so I'm guessing not any had em.You can install them.
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LeonR2013
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Joined: 01 Jan 2013
Location: Fulton, Mo
Points: 3500
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Posted: 24 Jan 2018 at 7:59pm |
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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.
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Brian G. NY
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Joined: 12 Sep 2009
Location: 12194
Points: 2256
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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.
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DrAllis
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Joined: 12 Sep 2009
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Posted: 25 Jan 2018 at 12:21pm |
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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).
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cpg
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Joined: 10 Jul 2015
Location: Michigan
Points: 246
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Posted: 25 Jan 2018 at 2:08pm |
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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.
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DrAllis
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Posted: 25 Jan 2018 at 4:23pm |
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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.
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LB0442
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Joined: 27 Dec 2014
Location: Boise ID
Points: 767
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Posted: 25 Jan 2018 at 5:55pm |
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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.
Edited by LB0442 - 25 Jan 2018 at 6:00pm
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
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Posted: 25 Jan 2018 at 6:18pm |
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H Farmall had dry sleeves too. Guy I used to work with pressed in new ones for his restore job.
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8466
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Posted: 25 Jan 2018 at 7:59pm |
 CTuckerNWIL wrote:
H Farmall had dry sleeves too. Guy I used to work with pressed in new ones for his restore job.
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They go in much easier after a few hours in the freezer.
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CrestonM
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Joined: 08 Sep 2014
Location: Oklahoma
Points: 8447
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Posted: 25 Jan 2018 at 8:30pm |
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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.
Edited by CrestonM - 25 Jan 2018 at 8:30pm
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