1948 8N Ford Tractor Sleeve.

D.L. Davidson · May 26, 2015

What do I need to measure in order to order the right sleeve for my 8n tractor, The old sleeve came totally apart and is in the oil pan., I measured the cylinder wall and it looks like 3"263 Thousands., The cylinder wall and piston and rings all look fine.

SDE · May 26, 2015

My experience was that the sleeves came in two different thicknesses. The early tractors used a .04 sleeve and the .09 was used in the later 8n. If you measure the thickness of the sleeve or check the sn of your tractor you should be able to get the correct sleeve. Of course you may have a tractor engine that was bored out to take the thick sleeve instead of the thin ones.
SDE

Dean · May 26, 2015

8N Ford engines built prior to approximately mid 1951 has .040 steel sleeves. Those built thereafter had .090 cast iron sleeves.

Note: Many early 9/2/8N engines have been bored to accept the .090 cast iron sleeves because machine shops do not want to risk damaging the this wall steel sleeves upon installation.

Dean

george md · May 26, 2015

D.L.

Being that the sleeve is in the pan, the most likely cause
is the bore in the block is no longer a press fit. This
allows the sleeve to slide up and down and break the flange
off , when it comes down the crank makes little pieces
of it. The counter bore is most likely bad and needs a
counter bore repair insert. AND what ever you do don't
buy a genuine ford gasket as it does not pass over the
flange to hold it tight, Mccord does.
If the counter bores are not even and within spec , you
may need to plane the deck and recut the counter bores.

george

D.L. Davidson · May 27, 2015

Thanks George
I believe you hit the nail on the head., Let me ask you George is there any way I can fix this thing that it will last me a few more years, I am 72 yrs old and sure can't maneuver as I once did. I don't use the old tractor much anymore just brush-hog a small pasture now and then and love joy riding. I'm not lazy George I just not a young man anymore. Thanks for your help. [email protected]. Dave

Bob · May 27, 2015

NO need for a bunch of $$$$. Install the appropriate new sleeve and stick it in place with some Locktite sleeve retaining compound.

george md · May 27, 2015

DL,

You can try bob's idea with the locktite, good possibility

that it will work . Just make sure you don't use genuine ford

head gasket.

I'm 71 and still have machine shop , got a pacemaker/defib

a week and a half ago.

george

D.L. Davidson · May 28, 2015

Thanks George I have only one more question Where can I find a McCord Head Gasket??, I spent hours on the net looking for one yesterday. Thank You George and I sure hope you do well after your surgery, God Bless

D.L. Davidson · May 28, 2015

Thank You Bob for your help, I didn't know they made a loctite just for that, I will go to my parts store and see if they have it, I sure hope it isn't as hard to find as the McCord head gasket. Thank You Bob for your help, Bless you Sir.

D.L. Davidson · May 28, 2015

Thank You Dean I check the thickness of the old sleeve and it was .040 Thanks for your help.

D.L. Davidson · May 28, 2015

Thank you SDE after checking the thickness it was .040 Thanks for taking time to help me.

george md · May 28, 2015

McCord is now only in canada because federal mogul wanted to

push the fel pro line which has wider coverage , but sets

do not contain many of the needed gaskets. My next choice

would be victor which is part of clevite.

george

1948 8N Ford Tractor Sleeve.

D.L. Davidson

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SDE

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Dean

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george md

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D.L. Davidson

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Bob

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