Sediment Bulb on '48 A

J

dave

I used to have a '48 A, and it did not have the oil pressure sensor fuel shut-off in the sediment bowl. I don't think that came out until the model 50-60-70 gassers.

The sediment bowl called for your "A" is the same as used on my 70 Diesel, AA 4331 R. That one is a pretty common unit, and most dealers have them in stock (they were used on combines, haybines, etc, too).

You can probably do a good job of cleaning yours with some lacquer thinner, MEK, and elbow grease. Be sure that little screen is in the top of the sediment bowl and that it's in good shape. It might save you a trip with the carb to the workbench.

Frank-in-Tallahassee
70D // 855

BUDD

I'm a little confused. I got that off of my Parts CD, and thought it was for the 584000 and up. I'm on the road now, and don't have the CD here, but I know our "A" (595751) came with a straight sediment bowl, and no oil pressure switch. I was always told that it was a '48 at that serial number. I later had a '49 (serial was around 610,000 maybe ?) and it had a straight through bowl, too.

Are you saying that the '48's and up had oil pressure switches from the factory, or was it an option ? I don't want to give out bad information. I wouldn't doubt that there were alot of things like that adopted to the 680,000's and up. That's when they were starting to leak out improvements that they were going to feature on the numbered series.

I'll check my CD more closely when I get home on Friday, but I'd appreciate a re-check on those numbers.

Frank-in-Indianapolis

First let me say that if I ofended you I did not mean to. Seocnd my post was intended to have a little of humor in it. Third I rank you with Clooney as far as good helpful post. Acording to my parts book Automatic shut off was # AA5775 R for 584000 and later. I would asume that this was an option as there were at least two other shut offs offered. All fuel - AA 499 R up to 697756 and AA 5334 R 697757 and up. Also my book shows AA 4331 R for 662729 and up. This book is a little confusing to me, I think I am reading it rite. I looked at a ser. # list and the way I read it 1948 started with 594433 and went to 620842 so I was wrong there I think. I am just getting into the 2 cyd. thing so bear with me. I plan on using all your help this winter when I tear my 49 A apart to see how it works. THANKS BUDD

Oh no offense. It's just that I was pretty sure that while the oil-pressure shut-off assembly might have available as a field retro-fit, I've seen so many that came with the old straight through sediment bowl that I think that's the way most users had them configured.

I'll check that CD when I get home this weekend because I would like to know how to interpret the book, too.

Good luck on that "A" ! I've done several over the years. They're a nice tractor.

Frank-in-Indy

THANKS BUDD