Sleeve removal by boring out???

I'm working on a Ford 860 with 172 ci gas with sleeves. Its in need of an overhaul, and currently restoring the tractor.

The machine shop never heard of pressing out the old sleeves and told me they would have to bore out the old sleeves, insert the new ones, and bore the new sleeves to match the pistons that came with it. This was a Tisco kit that I bought here on Yesterday's tractor. Has anyone heard of this being done before? Just seems to me the new sleeves and pistons are matched and ready for install according to the kit. Maybe I'm missing something?

I'm also having the crank turned or polished, depending upon which is needed. They also needed the main bearing caps first in order to find out. Thought that was weird too, as the main bearings are being replaced anyways.

Please help! Thanks!

My sleeves are already out, and low and behold a ton of measurements were off. All the sleeves were previously pressed into the block too far, one sleeve was in crooked, the sleeves were out of round, the cylinders were out of round, and so on.

Granted I could have gotten a puller from somewhere and changed them myself, I wanted to make sure it was done right. This means everything is within spec, no matter what measurement. This block was last worked on in 1973, and, not even 1,000 hours later it needed an overhaul. It was done pretty sloppy before we found out.

Nobody around here pulls them anymore. Its cheaper and faster with a good boring machine, plus the shops don't have to stock all the different pullers to work on all the engines out there.

I just wanted to know by my OP if anyone heard of doing it this way, as I haven't before. Like I said before, this is common practice of the shops around here, and even the Ford NH dealer. I'm now glad my block is still at that shop, instead of somewhere else just getting parts swapped.

Thank you for your concerns, but I trust professional ASE certified machinists over the weekend warrior.

That engine, and many others like it from it's time were designed to be overhauled with a limited number of tools and done in frame where possible. Those sleeves are not hard to knock out without a puller. They're not pressed back in either. They should drop in after a good freeze.
Mabey the thing was buggered up by a half cocked bore job at some point in the past too... Those engines were designed as a dry sleeve engine so they could be rebuilt without machining, without major tooling, and basically without a lot of specialized knowledge. Most would ahve been done under circumstances that would be considered 'shade tree' today. There would ahve been a lot of dealer service departments that would have fallen into that category in the past too. Perhaps there still are. A newer parent bore engine like what is commonly used today would have to come apart for boring like you're doing, and that adds to the expense and the time requirement...

Another thing for you to ponder is this....
I've found that there tend to be two types off shops and tech's that you will find when you take your stuff in to them to get work done. There's the guys that will ALWAYS find something wrong. This was out of spec. That was worn out, etc. They will argue with you that black is indeed white when any simpleton with eyes can clearly see that it's black. I've dealt with a few of them.

The other type I find is the ones that don't even want to look at stuff. If they know that you know what you're doing, they don't want near it... Got to argue with them to do the simplest of things. If it's not their way, well it just won't work, and if you're not going in blind, well... you're just not their customer.

There's a few honest ones around, but I've found that they're a precious few.

Hope you fare out well with yours...

Rod

Rod

The nice thing about Ford sleeves is that you can easily get them out, slide in new ones and you're done. They are matched to the pistons in the kit.

jb

The nice thing about Ford sleeves is that you can easily get them out, slide in new ones and you're done. They are matched to the pistons in the kit.

jb

The nice thing about Ford sleeves is that you can easily get them out, slide in new ones and you're done. They are matched to the pistons in the kit.

jb

Now find another maching shop.

Dean