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Help with Farmall 450

T

Trent M

Member
Dad and I pulled my grandpa's old 450 to our barn today. It was parked 5 or 6 years ago. Dad said he thought because it had a knock in the engine. My uncle claimed it was because of governor surging. Dad took the left side and cleaned up the carb, I took the right side and tuned up ignition and set timing. After just a couple of hours it was running, pretty well too. Good news was, no knocking. The bad news, it surges. If it was a Cub, I would have adjusted the gov-to-carb linkage, but the bigger tractors are not the same. We played around with the carb adjustment, but didn't fix the surging. Anyone have any suggestions on things to try?

Also, I don't have a manual for it. The front pulley has 4 timing marks and I wonder what they are for. Are there multiple advances? I picked the first one and set the distributor using my multimeter. I guess that was TDC, because it started right up. Would I be correct in assuming that the last one is full advance and I can check with the timing light at full throttle on that mark?

Thanks for the help. It was a great day to spend time with Dad in the barn and then hear the old Farmall run!! :D
 
Ya need to do the same with it , if ya never done one before then get a I T manual and read it is real easy . If i was not do tired i would type it out but i just got off the 1066 from discing and i am half froze and covered in dust . So it is off to the shower and bed .
 
vet- Thanks for the reply. I have done a few Cubs. I have an H which is similar, but I have not had a days trouble with it in what's been 6 or 7 years now. Get some rest now and maybe help me out a little with it tomorrow? Dad just wants to sell the 450, so I'd rather not invest in an IT manual. If we were keeping it, I definitely would though.
 
We just bought a Farmall Super M 450 LP it has to wide front end , can you tell me where to find a serial number? The gentleman we bought it from said he thought it was a 1950 but was not sure
 
Trent, You may have to take the cover off the governor and check that the weights inside are clean and free to move. It sure sounds like a governor problem. Do what Vet says first though. Run through the adjustment and then see where you are at. This is not a timing issue. Where are you located?
 
Yeah, I knew that there was no issue with the timing, I just like to check timing with a light after I set the distributor to where the points just break. On the Cubs, there is a TDC mark and then one mark at full advance (battery ignition). The 4 marks threw me for a loop, because I have only worked on the Cubs before.

If a Cub was surging, I would have checked the gov-to-carb linkage for play and proper length when the carb was reinstalled. So it doesn't surprise me at all that I need to do the same. Its different enough that I don't know where to start, however.

Thanks for the help so far!!

Located in Southern Illinois.
 
Actually the Super M and the 450 are 2 diferent tractors. The 450 replaced the Super M and was an upgrade. Does your tractor have a 450 decal on it?
 
Thank You... Yes it has the metal 450 on the tractor. Should I be able to find the serial number on the left side of the clutch or the transmission housing ?

thanks for the help
 
Thank You for taking the time to answer my questions!!! How do I know how hps this tractor has? I was told it was not large enought for a 6FT Bushhog
 
Yeah, it should handle a 6' bush hog if the motor is good and it is tuned properly.

Any help with the governor adjustment? Anyone?
 
Theresa - it's 50 Hp. I pull a 6ft finish mower with a 140 (25 Hp). I've seen a 15' batwing Landpride mower pulled with a 50 Hp tractor (Ford 5000).
A 450 will pull a lot more than a 6' bush hog.
 
Thanks, I am still having trouble finding the serial number, I have looked by the clutch and on the transmission housing, there are numbers on every part of this tractor, I do believe it is a 1957 - the LP tank has 1957 on it, also the motor mfg date by the #1 spark plug?????

Thereasa
 
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