What are these?

Discussion topics on Willys Overland M series vehicles
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Brumbach
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What are these?

Post by Brumbach »

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Trip
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What are these?

Post by Trip »

Link does not work for me!
Trip
Houston TX
51 M38 MC 25423
52 M38
M38 recently acquired Some parts only, roller
67 CJ5
51 CJ3A
49 CJ2A
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wesk
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Post by wesk »

They are the early tapered style flywheel dowel bolts. They are normally not re-used but instead replaced with a modern shoulder bolt kit. This info is in the manuals.

Image
The civvy engine manual PAR D-79

TM 9-1804A page 83 Par 74. for the M38

TM 9-8015-1 pages 108 Par 96, 82-84 PAR 70
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules. ... _album.php
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Brumbach
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Post by Brumbach »

Thanks. At least I asked while I still had a chance to use them. Darn if I remember them during disassembly. I bagged and tagged everything but them...I hope. Flywheel is installed with new bolts and torqued to spec. Hopefully, I'll get the hang of the photo posting next time.
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Post by wesk »

Image
Here I have modified the original drawing to make it more obvious which are which. Simply put when you ordered either a new flywheel or a new crank it came with the shouldered dowel bolt kit and instructions for drilling the old part, be it either the crank or flywheel.

You are lucky you got the six bolts installed before you installed the rear main bearing cap.

If you have no use for them just mail them to me!
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules. ... _album.php
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Brumbach
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Post by Brumbach »

Thanks. At least I asked while I still had a chance to use them. Darn if I remember them during disassembly. I bagged and tagged everything but them...I hope. Flywheel is installed with new bolts and torqued to spec. Hopefully, I'll get the hang of the photo posting next time.
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Brumbach
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Post by Brumbach »

A blind hog finds an acorn every now and again. I got lucky and read a "what not to do" when assembling a L134 before I began. What's your address?
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Jeff_Lee
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Post by Jeff_Lee »

And if you have an early M38 with a timing mark hole and timing marks on the flywheel, make sure you don't mount it 180 degrees out of sync with #1 cylinder TDC.

Don't ask me how I know....
1951 M38 restoration project - Flightline Jeep MC 23923 DoD 6-51
1954 M-100 Trailer USMC Dunbar Kapple s/n M-750759 DoD 1-54
1947 Willys CJ2A - Harvest Green
1954 Ford F-100 Parts chaser - blueprinted Y-Block
Southeast Florida
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