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JD 42 head

U

Uff-da

New User
Hi Everyone,
This season my dad and I got a JD 42 roundback going. I'd bought it a couple years ago, but this was the first year we got it going. I was pleasantly surprised, it did a pretty good job. It currently has a pickup head and I thought I'd like to get a straight cut head for it. We found a guy a few hours away with a couple squareback 42's and I was hoping someone out there might know if the headers would be compatible? Also just curious to learn the differences between these machines? Or a good place to track down information on 42's?

We're having a great time and would love to keep learning and tinkering :) thanks!
 
A square back 42 is kind of on my want list. I had one years ago and sold it before using it. I really should look for a 65 or 96 pull type
instead. I would think the heads would interchange but if not you could buy the sickle and reel parts and add to your head. Back in the day
many farmers changed over from pickup to direct cut every year. Where are the 42's located? Tom
 
(quoted from post at 18:04:31 11/27/21) A square back 42 is kind of on my want list. I had one years ago and sold it before using it. I really should look for a 65 or 96 pull type
instead. I would think the heads would interchange but if not you could buy the sickle and reel parts and add to your head. Back in the day
many farmers changed over from pickup to direct cut every year. Where are the 42's located? Tom
Click to expand...

Thanks Tom! They're in Gilman WI. They're being sold for parts, but the fellow thought he had one good machine between them. -Adam
 
If the price is reasonable consider buying a complete machine for parts. At the least I would but an extra main gearbox and a complete pto
driveline as they were sort of a weak spot on those machines. I have seen several where they made a center carrier bearing for that long drive
shaft. Tom
 
(quoted from post at 07:10:51 11/28/21) If the price is reasonable consider buying a complete machine for parts. At the least I would but an extra main gearbox and a complete pto
driveline as they were sort of a weak spot on those machines. I have seen several where they made a center carrier bearing for that long drive
shaft. Tom
Click to expand...
That's good advice, thanks Tom! I'll have to put some want ads out there. Do you have sites/places you like to look for older machines? I'm not sure I've had to track down a specific machine like this before. Thanks! Adam
 
Several years ago we completely restored a model 42 round back combine. It was the first and only combine ever restored to Expo quality. It was a great
learning experience as even back then there were virtually no parts available. Several differences between the round back and the square back were the
cylinder bars were different, the square back has three spiders where the round back has only two and Deere welded the bolts into the bars. Both the clean
grain and the tailings elevators were top driven on the square backs and were driven with roller chains instead of V-belts. We replaced the power shaft with
one we made up from truck material. I will look and see if I can find some pictures. Finding a model 205 corn head worth restoring was also a major hunt.
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The 42 was the pull type version of the 40 machine and used a 9' head while the 40 used either an 8' or 10' head. An 8' should I would thin mount easly but don't know. Friend and his dad took the 10' head from a 40 and cut it down to be narrower for limited use and easier to transport. Most of the differences in the RB and SB were in the seperating area but there were difference in operators platform as well acording to sales lit for both the RB and SB but nothing about any differences in the head. And the 205 corn head fit both the RB and SB in both the 40 SP and 42 Pull Type. The 205 head with correct adapters also was used along with the 210 head on the 45 SP in both RB and SB models so look at heads for a 45 for parts. I had 2 different models of RB and 2 different models of 45SB machines.
 
Thanks Tom! That restoration is a thing of beauty! I wish mine looked half as sharp, haha! I greatly appreciate all the information. We're going to go ahead and buy the head from the squareback. I also may have a roundback for parts only 30 minutes away! So seems like we'll get to have some more fun. Thanks again! Adam
 
Thanks Leroy! That's a lot of great information! I'm having a lot of fun learning about these machines, hopefully someday I'll be as knowledgeable! Fortune seems to be shining on our little project here, we are going ahead on the squareback head and have a lead on a roundback for parts right in the neighborhood! Thanks again, Adam
 
The feed throat was offset on the head for the 42 if memory serves me right. The auger was longer on the right hand end than on the left hand end in relation to the retractable fingers as I recall.
 
The corn hed could not have been mounted offset so I just was thinking the the smaller 8' head might hafe been narrower enough that it would fit in the same width as the corn head. I never saw a 42 up close, just going to what sales lit showed and taking a guess.I know on a MH 35SP combine was narrow enough that it was same width as a 7' or 8' platform, I had a MH 35SP. So if the corn head was narrower enough that thhe corn head fit I though the 8' platform might as well. I do know the platforms can be cut down narrower and figured if you took a 10' platform and cut a foot of the right side it should be same as the 9' the 42 came with and an 8' platform without cutting should stick out no farther than the 9' platform on the side. Just thought it was somthing to consider and check as thing can be modified and work.
 

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You are absolutely correct on that offset Randy. I can't imagine trying to get a center throat head off of a 40 self propelled to work on the 42. We chose the 42 as a restoration project for several reasons. 1st: It was a pull type so you could show it with the tractor attached. This was a mixed success as we wanted to draw attention to the tractor and people walked past the tractor to see the combine. Several friends told me that I could have showed it with a Farmall tractor and nobody would have noticed. 2nd; it was the first pull type that Deere put the bin above the separator. This was big as it allowed the tread to be narrowed up to transport it on a standard 102 inch standard width trailer. 3rd; It was the first pull type that Deere offered with a corn head attachment.
 
Thanks for the header refresher. I have a 1964 JD 40 round back with a 10' header. Mine came off of a dairy farm in Collegeville, PA. I have been looking for a 205 corn head for a long time with no luck. I have only seen one in my local area of Eastern VA and it was a rusted out waste. I would think offset heads for a 42 would be even harder to find.
 
I read somewhere on Yesterday's Tractors that the motor for a 40 is the same as a 1010 tractor. I also read that the thresher drive belt will interchange with a belt off of a JD hay baler and that they are still available using baler part numbers from JD. I do not remember what model the baler was though.
 
Basic motor is same for 2010 tractor. Just deck plate and pistons different. The deck plate for the 45 combine was 145 and later 45 combines was 160 and that could be put into the 1010 engine or the 42 combine and give a way big boost in power. Had 2 45's with the 145 version and 1 with the 160 version, then the newest had a 180 engine entirely different. JD dealer service man also farmed and had a 145 engine he pit in his 1010 tractor and said it was puting out 60 HP so must have the 160 deck plate. Also he JD G put out 60 HP.
 
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