Those sleeves are are cast steel. One of my 8Ns had the sleeves removed in this manner and the parent bore had been broken right through. A good shop bored the block oversize to accommodate repair sleeves. They were then bored to allow the use of .090 sleeves on all 4 holes. I will never repair one of these engines with the .040 sleeves as I have bought tractors with the .040 sleeves broken and good size chunks in the oil pan. If you hone the parent bore, most likely the new .040 sleeve will be too lose and break the top flange allowing the sleeve to move up and down with the piston and rings. Old sleeves can be removed by welding a few vertical beads on the inside of the sleeve. As the sleeve metal cools, it shrinks. I have also packed the sleeve with dry ice and pulled them out cold. New ones can be filled with dry ice to shrink them temporarily in order to set them in the block bores. As they warm up they create a tight fit. Be sure to fully set the top flange (ring) into its counter bore before the sleeve warms up. All of the 9N, 2N, and early 8Ns were built with the 040 sleeves, but many have been rebored to use the .090 sleeves. I have never had a .090 sleeve fail. I have been messing with these tractors for over 55 years. I see you have 4 ring pistons. I recommend new 3 ring aluminum pistons, standard size. Check out the "Yesterday's Tractors" website forums pages for the N series tractors. Lots of good info there.
I agree, .090 thick sleeves are better but we are trying to get this thing back up and running without spending a ton of money on a machine shop. The honing of the block would be to just remove any burrs for sleeve installation....not trying to resize them or anything.
@WhatWeCallTheFarm I have a couple dozen screwdrivers that are bent & ground to be special prybars & extractors, but I probly wouldn't use one for that! it did seem to be incredibly thin & brittle, so it didn't look like as bad of an idea as I thought it would be 🤣
Excellent!
Those sleeves are are cast steel. One of my 8Ns had the sleeves removed in this manner and the parent bore had been broken right through. A good shop bored the block oversize to accommodate repair sleeves. They were then bored to allow the use of .090 sleeves on all 4 holes. I will never repair one of these engines with the .040 sleeves as I have bought tractors with the .040 sleeves broken and good size chunks in the oil pan. If you hone the parent bore, most likely the new .040 sleeve will be too lose and break the top flange allowing the sleeve to move up and down with the piston and rings. Old sleeves can be removed by welding a few vertical beads on the inside of the sleeve. As the sleeve metal cools, it shrinks. I have also packed the sleeve with dry ice and pulled them out cold. New ones can be filled with dry ice to shrink them temporarily in order to set them in the block bores. As they warm up they create a tight fit. Be sure to fully set the top flange (ring) into its counter bore before the sleeve warms up. All of the 9N, 2N, and early 8Ns were built with the 040 sleeves, but many have been rebored to use the .090 sleeves. I have never had a .090 sleeve fail. I have been messing with these tractors for over 55 years. I see you have 4 ring pistons. I recommend new 3 ring aluminum pistons, standard size. Check out the "Yesterday's Tractors" website forums pages for the N series tractors. Lots of good info there.
I agree, .090 thick sleeves are better but we are trying to get this thing back up and running without spending a ton of money on a machine shop. The honing of the block would be to just remove any burrs for sleeve installation....not trying to resize them or anything.
Screwdrivers are nice chisles 😂
Gotta use the tools you have, lol
@WhatWeCallTheFarm I have a couple dozen screwdrivers that are bent & ground to be special prybars & extractors, but I probly wouldn't use one for that!
it did seem to be incredibly thin & brittle, so it didn't look like as bad of an idea as I thought it would be 🤣
It's pretty thin cast iron and the block will be honed before the new sleeves are installed so it was minimal risk.
The .040 steel sleeves can be done this way. I wouldn't suggest trying this with the .090 cast iron ones.
@ They were the .040 thick sleeves.
Very interesting. I have a 1940 Ford V8 60 engine with sleeves that look similar. Now how do you go about installing the new Ford sleeves?
I don't know that I would use this method on a car. They will usually have tighter tolerances that one of these old tractors.
I didn't think it would work.
I wasn't sure either. I've watched other videos where that is how they did it but didn't think it would be that easy.