Removing piston sleaves

[nysbrad]

Helping my Brother n law work on his 8-n , having a trouble getting old sleaves out, also I want to order new ones and I am unsure how to messure them for correct size . Any suggestion's? :roll:

 

[TheOldHokie]

(quoted from post at 11:09:24 03/23/14) Helping my Brother n law work on his 8-n , having a trouble getting old sleaves out, also I want to order new ones and I am unsure how to messure them for correct size . Any suggestion's? :roll:

The OEM N-series sleeves were either .040 or .090 wall thickness. Measure the bottom of one after you have it out:

OD of the .040 wall sleeve is 3.265.
OD of the .090 wall sleeve is 3.365.

No fancy mic's or calipers needed - you can tell the difference with a carpenter's steel rule.

TOH

 

[R Geiger]

TOH makes some excellent tools for removing and installing the sleeves.

 

[Dean]

I can back up RG's comment, below.

I own a set of TOHs Ford tractor sleeve removal/installation tools, and can attest that they are well made and reasonably priced. It might pay off to invest in at least the 8N set if you anticipate overhauling these engines in the future.

Determine which sleeves your engine uses (.040 steel or .090 cast). If you have the steel sleeves, you can reinstall the .040 steel sleeves if you can find a shop to do so, or rebore your block for the .090 cast sleeves. I do not recommend attempting to install steel sleeves yourself unless you have the proper tools. These sleeves are rather easily collapsed.

If you send your engine to a machine shop, you will likely find that few if any knowledgeable shops will install the steel sleeves, prefering rather, to rebore the block for the cast sleeves. Shops do not want to take the risk of collapsing the .040 sleeves, and make more money if the block is rebored.

Myself, I prefer the .040 steel sleeves and 4 ring pistons but admit that I am in the minority on this issue.


I do not advise using 4 ring pistons with cast sleeves.

Dean

 

[Hobo,NC]

(quoted from post at 19:09:24 03/23/14) Helping my Brother n law work on his 8-n , having a trouble getting old sleaves out, also I want to order new ones and I am unsure how to messure them for correct size . Any suggestion's? :roll:

Make sure it has a sleeve in it,,, it should be obvious if not measure the piston to see if its over-sized and ran sleeveless.

Its possible to have a industrial engine with a standard bore and NO sleeve.

There's always the old stand by using a welder to remove the sleeves... TOH has made it affordable to own the tools to preform painless sleeve removal and instillation...

 

[nysbrad]

Thanks For the good info. I managed to get one sleeve out and mic'ed it turnout to be a 0.40 sleeve with four ring pistons. the original plan was to slap a set of rings, bearings in it and call it good . But after closer inspection I think we are going all the way through it. someone had been in this engine before and had done some major cobing. :roll:

 

[Brad Lines]

Ok now you have my attention ; Got to ask about
useing a welder for removing sleeves. I dont have a
sleeve remover and really dont want to buy one just
for this tractor, this will be the last time I work
on anything like this Thanks Brad

 

[TheOldHokie]

(quoted from post at 17:20:48 03/23/14) Ok now you have my attention ; Got to ask about
useing a welder for removing sleeves. I dont have a
sleeve remover and really dont want to buy one just
for this tractor, this will be the last time I work
on anything like this Thanks Brad

Run a cold bead the length of the sleeve and it will contract enough to be removed. Unless you can lay a bead on a tin can without any penetration don't try that on the .040 wall sleeves. They are REALLY hard to remove once they are welded to the block...

TOH

 

[Brad Lines]

Ok Thanks!

 

[R Geiger]

You may get them out without the tools but the chances of getting them back in without the proper tools is iffy. Espeially the thin walled ones. I got a set that worked great and it is highly likely I will never use them again. I would still do the same and buy them even for a one time job. can always sell them on Ebay.

 

[ZANE]

If you have a cutting torch you can use it to heat
a streak from top to bottom in one place till it
is red hot. Just in that one line from top to
bottom. Allow it to cool and it should have shrunk
the OD of the sleeve and be easy to drive out.

Never try to peel out the sleeve with a
screwdriver or a chisel etc. It will break the
cylinder wall and ruin the engine. I've seen it
done several times over the years.

The original .040 sleeves were steel. Not cast
iron like they are now and you could peel them out
with a long sharpened screwdriver but I've not
seen a steel sleeve in at least 40 years.

Zane