1945 2N - Transmission issue - heard a popping noise

technoamish · Jun 11, 2017

Hey I'm back with more 2N issues, You just have to love these old tractors. :wink: I haven't dug into this one yet but I figured lets start here first before I just start tearing into this thing. Not allot to tell, I was moving some dirt with a 1/4 back bucket and when I went to move forward in first gear I heard a popping noise like somone taped the side of the tractor with a hammer. Then nothing, I can put it into any gear and it doesn't move at all not even reverse. So that's it sits right next to my dirt pile. I'm seeing a split in half tractor in my near future. Any initial ideas folks?

Ultradog MN · Jun 11, 2017

Does the three point and pto still work?
If not it's probably your clutch.
If they do work you probably broke the
rivetts on the ring gear on the
differential.

technoamish · Jun 14, 2017

Hey Ultradog MN, The 3 point & the PTO are working just fine. I had removed the Shift Lever transmission cover to see if anything was obvious. visually every thing looks ok in the trans. If I put the tractor in gear it will still roll like it's in neutral. I think your right about the rivets. I have and old Ford Parts Catalog and it's showing 12 7/16" x 1.5" rose head rivets (Drive gear to gear case assy.). Have you ever replaced Differential rivets before? What do you recommend for rivet replacements? or do I need to start scouring around for a complete assy that already is riveted together.

Royse · Jun 16, 2017

Where are you located? (roughly)

Ultradog MN · Jun 16, 2017

I think the recommended replacement for those rivets is grade 8 bolts with locking nuts. It can be tough to get the old rivet halves out but a good stout punch and bfh should do it. You could just replace the whole differential with a used one but usually the ring and pinion are replaced as a set. That isnt hard to do but does mean a rear split.
I could easily be talked into just putting a used differential in it and forget the pinion/split. Old tractor would probably go for several thousand more hours that way...
Lot of folks here should have a rear end for parts as they don't often sell very fast. Shipping is a killer though so buy local.
Royse is in MI. I would buy from him no questions asked - if he's close.

technoamish · Jun 18, 2017

I am located up in Lapeer MI

Royse · Jun 18, 2017

"I am located up in Lapeer MI"

I'm about 10 miles North of Ionia, MI just off M-66.
I have a good set including the pinion setting on the shelf.
If you're interested in driving that far let me know.
My email should be open via YT.

technoamish · Jun 25, 2017

Hey Every body I was finally able to pull the left side axle assembly off the 2N to look at the differential ring gear assembly.
This is one of those good and bad things, everything looks in good shape no broken gears or rivets. The bad thing is I'm not
sure what's broken now? I'm thinking it must be something to do with the clutch or transmission. It looks like I'm going
to have to split the tractor, check the clutch and if that looks good I will have to bench the transmission. start taking it apart
until I identify the broken parts. If anybody has some advice I'm all ears! Thanks Again.

HFJ · Jun 25, 2017

i am unaware of how a defective clutch in an N could allow the PTO to operate while not letting the tractor move. maybe i will learn

Royse · Jun 25, 2017

Transmission to pinion coupler stripped or snapped?
You might be able to see that through the side inspection cover.

Ultradog MN · Jun 25, 2017

It's best to start a new post when your other one gets this old. Otherwise a lot of people won't see any new replies.
Ok, so you stated before that the pto and lift are working. Is that still correct?
If so then I still think your clutch is intact. So before you split the tractor remove one of the round side covers on the rear end and look up there with a flashlight. There is a splined coupler that connects the output shaft of the transmission to the pinion shaft. Make sure it is still intact. I've never heard of one of those failing on an N but stranger things have happened.
I think you can see it - its been a while since I worked on an N - use a mirror if need be. Otherwise you should be able to reach up in there and feel it.
If it is that coupler that failed you would want to split the tractor between the transmission and rear and not at the engine.
Keep us posted. They are very simple machines and the help is here if you need it.

Royse · Jun 25, 2017

It's above the PTO shaft, but should be visible I think.

Hobo,NC · Jun 26, 2017

I have never myself seen one split open but have seen them come unglued were the ends are sweated together at the 2" mark and 8" mark...

It would be EZ to overlook one that has came unglued because the front part would be turning all would look well... Confirm the rear is also turning..

1945 2N - Transmission issue - heard a popping noise

technoamish

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