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Engine SN/Date Code

E

equeen

Member
I have a block, reportedly off a 51 Super C. Block PN354898R1, Date code 9-6-W (1951).

Block Serial Number? Either has been ground off or else was never stamped. The plate is clean to bare metal.

I have a busted block, definitely off a 52 Super A. Block PN354898R1, Date code 7-7-x (1952). It has a serial number.

My question is this. Aren't engine serial numbers required when ordering certain parts? Any idea as to whether the busted block 1952 serial number could be used as a "substitute" for the 1951 missing number - and not get into a problem with parts that don't fit?
 
You don't need the engine serial number for parts. That engine block is also used on the Super C tractors. Measure the old sleeves should be 7-1/32" in length. You can buy an overbore sleeve kit and the sleeve bore and piston diameter is 3-1/4" to give you 133cid. No machining is required on this block. The late Super A's and Super C's used this block. Hal
PS: Have that crankshaft measured for wear at your local auto machine shop. Buy your bearings from them.
 
Thanks, Hal.

The sleeve length from both the Super A and the Super C is 7" (Okay, probably 7 1/32).

The Super A sleeves are 3.25 ID while the Super C sleeves are 3.175 (probably 3.1875).

Interesting though, to me... the rod lengths (from approx center of wrist pin to center of crankshaft) is approx 7 inches on the Super A (rod pn 30926DF) and is approx 7.25 inches on the Super C (rod pn 30926DD x 68). What does this different length mean - especially regarding the crankshafts?


I was thinking of usisng the Super C engine with crankshaft intact - and replacing the sleeves (one is chipped at the bottom) and pistons with 3.25 from the Super A - or new if necessary.

Does this appear reasonable?
 
The Super sleeves may be original which were 3.125" in diameter. I'm not sure why there's a difference in length on the rods. Both tractors
had a 4.0" stroke unless there's a difference in the crankshafts. Someone else on here may have the answer. I would use the crankshaft and rods that were with the Super C. I would install a new sleeve kit. Have the crank measured for wear and buy your bearings from your local auto machine shop that measure's the crank. Hal
 
They have a sleeve kit w/ pistons and rings for $270.00 here on this forum. Look under "Marketplace" for tractor parts. Then you will have an engine that will last years to come. Hal
 
If you ever need parts according to the chassis or engine serial numbers, the parts book will tell you. Also use the hard copy parts book if in doubt, the CaseIH website may not have the detail you need.
 
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