Net Tractor Talk

Net Tractor Talk (
-   Yesterdays Tractors Forum (
-   -   farmall m IDing parts/model (

k9yli 10-11-2018 03:01 PM

farmall m IDing parts/model
3 Attachment(s)
I am in the process of ltrying to fix a plug fouling problem mostly cyl 2,3,4...
It turns out it is non standard.. Pistons are 4 inch M&W. but flat topped..!!
It should e a gas only tractor (1950) I need to get new rings and gaskets.
That is not a big concern right now.. but I would like to know engine model ( I think its C248) and why most of the stuff I have found in the last couple of hours indicates M&W have either cratered/recessed or ridged pistons.
pictures if it works

edit: crank is 5.25 stroke..not the 5.75 m+w change.

k9yli 10-16-2018 04:56 PM

so far,, c248 seems correct for engine. also rings for 4 inch M&W pistons is 2C7997 set... It seems that is correct for all versions of 4 inch M&W
pistons. Pistons are marked 11F3 inside skirt. Flat topped.
top two rings are 3/32 next is 1/8. oil ring is 1/4
Head in machine shop to swap valve guides. and remove one broken exhaust stud.
I will keep in touch if any further concerns arise.
Don..... north west wisconsin..

Doc 10-16-2018 08:26 PM

Good luck and thanks for updating this thread. :thumb:

All times are GMT -5. The time now is 06:13 PM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright 2002 - 2019,