super a block

[zack m]

I have a super A that has a broken ear on the block so I need to get a new block. This tractor doesn"t have a water pump and I was wondering if a farmall 140 block with a water pump would fit in the my super A without any modifications? I will be using just the block from the 140 and would like to be able to use all of the internal and external parts from my super A (head, crank, cam, rods, etc.).Will there be any problems with the fan, shroud, and radiator? Or should I just stick with a block from a super A? Any help would be great.

Thanks,
Zack

 

[mopman00]

My A had an ear broke offen it 45 yeers ago had it welddd back on and run it ever sence.

 

[zack m]

someone had welded it in the past. I just got the tractor and it smokes bad and has low oil pressure so it is time for a rebuild. I would like put a new block in it now that I have to rebuild it.

 

[El Toro]

Is there a number on the engine block like 354898? Hal

 

[zack m]

I am not sure what the number is on the 140 block I found one in a salvage yard last week but didn't get the numbers off of it. I wanted to make sure it would work before I bought it.

 

[El Toro]

What's the block number off your tractor? Hal

 

[zack m]

I went out and got all the numbers off my super A block I could find
behind the oil filter
354898 R1

behind the governor
FAAM G
324739

 

[El Toro]

That's the same block used in the Super C's. That 324739 number looks to be the serial number and was built in 1952. Should be plenty of those blocks around. You can use an overbore kit in that block to 3.250" without any machining to the block. That would give 133cid in place of 123cid. Hal

 

[zack m]

so I should look for a block with the same 354898 number. will some of these blocks with this number have water pumps and some will not.

 

[zack m]

I just want out and measured the bore on my motor and it is 3" so it must be a 113ci not a 123ci.

 

[El Toro]

Measure the diameter of the sleeves down where they interface with the seals from your Super A and post it. Hal
PS; They should measure 3.4375" and be 7.060" long.

 

[zack m]

I only have the head off at this time so I can't take those measurements right now. but if I find a block with the numbers 354898 R1 then all the parts from my motor will work or will other blocks work?

 

[El Toro]

Other blocks may work, but you need to be careful
since your tractor has hydraulics. I think your sleeves are thicker since your 123cid block has the block number 354898R1. The C113 blocks
used on the early Super A's had sleeves that were 6 7/8" long and the diameter of the sleeve
at the seal end measured 3 5/16". If you look under tractor parts to the left of your screen under Marketplace the 140 uses sleeves that are 6 7/8" long and are 3 5/16" in diameter. Once you get a piston out you can measure one of your sleeves. You will need to pull the sleeve I think to measure the diameter. There may not be enough protruding through the seal to measure. Hal
PS: Those engines are easy to work on. Just take a few pictures during the tear down and separate all your parts into cardboard boxes and mark them where they were removed so you don't spend a lot of time looking for the part during reassembly.

 

[zack m]

Ok, so if I get a block with the same number as mine I will be safe and shouldn't have any problems.

 

[El Toro]

I think you be ok. Hal

 

[El Toro]

You should have that crankshaft measured for wear
at your local auto machine shop. If it needs to be ground undersize or just polished have them furnish the correct bearings. You need to check out that oil pump to see if its worn. Hal

 

[zack m]

yup I plan to take the new block and everything else to the machine shop to be checked out.
Thanks for the help

 

[CNKS]

That is a Super A block 354698. FAAM is the serial prefix for a Super A engine. 140, or at least the 130 engine prefix is C123. The 3 inch sleeves indicate that it is for chassis serial 350xxx-up, preceding the Super A1 (same block)The outside sleeve diameter at the o-ring is 3 7/16 or 3.4375 inches. The 3 inch diameter sleeves indicate that it really is a C113, the same block was in the C123 Super A1 and Super C. If you overhaul it, it will use 3.25 inch sleeves. My identical SA engine is in the machine shop waiting for the crank to be ground, etc.

 

[Jack OH]

You can put a water pump on the 113 ci. blocks, but you won't have a thermostat. So they take longer to warm up and in the winter they might not warm up.

To do a thermostat some guys have hunted around and found one that fit in the upper radiator hose some how.

If you get your block cleaned out good and have a good radiator a water pump might not be necessary, depending on how much you work the tractor.

Jack