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Subject: Sleeves

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Ben R    Posted 02-08-2018 at 16:39:42 [URL] [DELETE]        [Reply] [No Email]  
  • Sleeves
  • The sleeves available for the N Ford tractors today are mostly the 3.268 OD (040) and the 3.368 OD (090). My question is was there ever a 3.309 OD available? The reason I ask is a few years ago a Flathead Ford v8 engine rebuilder gave me a bunch of new sleeves with the 3.309 OD and the 3.1875 ID ,he told me the v8 sleeves he used did not need the counter bore. I thought I would ask the experts on here. Thanks very much.

    TheOldHokie    Posted 02-08-2018 at 17:23:28 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Sleeves
  • Not as OEM. Sounds like a "generic" sleeve from someone like Melling - the sort of thing automotive machine shops often use for a variety of applications. They are equipped to bore and fit whatever they want. Of course - once they are there and gone on an N-series engine the OEM field replaceable sleeve design is no more....


    Ben R    Posted 02-08-2018 at 20:24:09 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Sleeves
  • Yes, you are probably right. I believe the 090 sleeve did not come out till 1952, and if I remember correctly,my father used to tell me of a time in the early 40s, when there was a steel shortage and the N steel sleeves, were very hard to get. Farmers would have their Ns overhauled using 0825 pistons and no sleeves. Back in the day these N tractors were real work horses, and more often then not overworked, resulting in frequent overhauls. This got me wondering, what did the mechanics of yesterday do when the 0825 bore was wore out? And are these sleeves left overs from the 40s? Thanks.

    tractorfix    Posted 02-10-2018 at 08:54:33 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Sleeves
  • I've had several nS that had been run with .825 pistons in them. Unfortunately the block wasn't made of material to withstand pistons running in it and they always end up completely worn to junk. They then need to be machined and sleeved back to stock. I have a 1950 8N that has a machine shop rebuilt engine in it. They left the .090 sleeves in place and bored it .060 over and put in oversize pistons

    Ben R    Posted 02-10-2018 at 12:39:29 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Sleeves
  • I have a 1941 9N with the 0825 pistons in it. I put new rings in it a few years ago and it works & runs very nice,it only sees a few hours of work a year,so it should be good for years to come. My 1952 engine was completely rebuilt back in 96 and the 090 sleeves were rebored to 040 this tractor has been used a fair bit and is still going strong. Prior to 98 I worked at a engine rebuilder so I got the machine shop work done at a very reasonable cost. Today it would probably cost more to have the 090 sleeves bored and honed than to buy a new sleeve piston kit.

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