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Where to look for part# on crankshaft and liner?

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9 months 3 weeks ago #254407 by Floyd Green
I am trying to put together two sets of NOS parts sets consisting of: Standard crank, main & rod bearings, rods, pistons, rings, liners, and ( I think I only have one) cam. I "suspect/hope" I have matching parts (all are from same farm shop) that should fit the  early D6 I bought from the same farm. I asked herein for info on where to find parts#s on cranks/liners. To my surprise, I got no response. I do need to know these part# locations to continue. Any suggestions as to where I might look/ask next. P.S. I sure miss the parts wizard "DANA" in Sacto.

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9 months 3 weeks ago #254410 by rax200
Hi Floyd,
What engine and what is the serial number? Early d6 could be quit a few different numbers

Regards

Daryl

1937 RD4 4G4368
1940 D4 7J3717
1942 D4 7J9915SP
1942 R4 6G2550SP
1944 D4 2T6584SP
1945 D4 2T8978SP
1946 D4 5T6271
1956 D4 7U37855
1954 DH226 S/N 89 Howard Tug
The following user(s) said Thank You: Floyd Green

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9 months 3 weeks ago #254421 by Sasquatch
Pistons should have the markings inside the skirt, near the bottom about an inch up from the base - one side will have the "Bohnalite" maker's mark and 180 degrees from it will be the part number, seen here just behind the rod -
 
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9 months 3 weeks ago #254422 by Sasquatch
Connecting rods will have the part numbers on one side of the beam -
 
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9 months 3 weeks ago #254423 by Sasquatch
Crankshaft out of a 2H RD-6 pictured here, the casting number is on the rear leg of the #1 connecting rod throw -

 
 
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9 months 3 weeks ago #254424 by Sasquatch
Bearings may or may not have the part numbers stamped into the back of the shell - I've seen them both ways.

 

Liners (OEM Cat factory pieces, not necessarily aftermarket) usually have the casting number somewhere on the outside, between the upper seal land area and lower o-ring seal grooves, of course.  Just have to clean and scrape until you uncover something.

If you end up with any spare 3 cylinder Cat NOS pieces available, I'd be interested in purchasing some from you.
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9 months 3 weeks ago #254437 by Floyd Green
Engine serial # 2H7063, Piston #s 1H5888. 6ea. in boxes, Liners, (6ea. in boxes) I will pull one and search where suggested by Sasquatch. Rods, 7B6225. There were 18 in boxes. Main/Rod bearings: Approx 70 in boxes. Old stuff, with the most common # 2M6499. I believe there is one unopened box 6F1933 containing all rod/main bearings for this engine. I haven't opened it up yet. I looked the 2M6499 # up (Tractorparts.com) and they work for the rod to crank bearings. The cranks crates are buried behind a ton (literally) of heavy parts like tranny gears All gears for D6, D8 plus many extras. Many still in cosmoline. It is supposed to rain for the next week so I should find the time. Anyway, thanks again for the help, progress has been made. If I can actually get these two sets done I want to start setting up sets of bearings/seals. I've been cataloging and shelving these for weeks. It seems to me I would rather sell sets than individual parts.

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9 months 1 week ago #254770 by Floyd Green
It was difficult to find the part# (8B0375) on a liner even though I knew where to look (thanks SASQUATCH) and when I did find it I still needed a magnifying glass to read it. I now have #s for eng., pistons, liners, and rods. Now I need to dig out a crank to find that part# to start figuring out my rod and main bearings. I found one complete (I believe) set of Standard eng. bearings consisting of: 1ea. 6F1931, 4ea. 6F1932, and one ea. of the following: 6F1933, 6H4510, and 6H4498. The box holding all this set of smaller boxes has "D8" marked on it. In looking up the part #s for my main/rod bearings for my 3 cyl. eng. build discussed above, I find some of the same part#s. "6F1931 & 6F1932" for use in both 3 and 6 cyl. engines. AM I READING THIS CORRECTLY?
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9 months 1 week ago - 9 months 1 week ago #254773 by josh
Does this answer your question?
Part number, alternative part numbers, where used, how many, which machines used on and weight.
 
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Last edit: 9 months 1 week ago by josh.
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9 months 1 week ago #254777 by Floyd Green
Josh, where did you get that info? That looks like exactly what I need!

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