Willys MB 404620 1-9-45 'Calsat'

If you have an unrestored WWII jeep, we would like to see pictures, and hear your comments. NO EBAY or COMMERCIAL SALES.
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horrocks
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Re: Willys MB 404620 1-9-45 'Calsat'

Post by horrocks » Wed Aug 07, 2019 7:47 am

Two of the 6 bolts securing the clutch support bracket were oversized, is this normal?

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A mixture of studs and nuts on the head. The studs were all spaced by thick copper washers.

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The rear manifold stud is oversized.

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Toby

Willys MB 3/13/42 127415
Willys MB 1/9/45 404620

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Re: Willys MB 404620 1-9-45 'Calsat'

Post by horrocks » Wed Aug 07, 2019 8:02 am

Better than I had expected. Pistons and bores seem to be clean, valves are pretty wasted though. Everthing was heavily coked, but I'd had an initial cleanup by the time these were taken.

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Original bores? #4 seems to have been sleeved back to original.

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I had hoped for 'matching', but 28,522 seems too yawning a gap!

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Toby

Willys MB 3/13/42 127415
Willys MB 1/9/45 404620

sawbuck
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Re: Willys MB 404620 1-9-45 'Calsat'

Post by sawbuck » Thu Aug 08, 2019 7:05 pm

According to "WWII Jeep Guidebook" by Ren Bernier, the original MB frame and engine numbers won't match.
I'm sure the experts can explain about how the Willys engine factory marked the blocks for jeeps, generators, compressors etc.

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Re: Willys MB 404620 1-9-45 'Calsat'

Post by horrocks » Fri Aug 09, 2019 1:33 am

sawbuck wrote:
Thu Aug 08, 2019 7:05 pm
According to "WWII Jeep Guidebook" by Ren Bernier, the original MB frame and engine numbers won't match.
I'm sure the experts can explain about how the Willys engine factory marked the blocks for jeeps, generators, compressors etc.
Yes, I was aware that Willys engine numbers were always higher than chassis numbers, but I don't think by this margin. I might be wrong of course, hopefully someone will chime in who knows.
Toby

Willys MB 3/13/42 127415
Willys MB 1/9/45 404620

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Re: Willys MB 404620 1-9-45 'Calsat'

Post by horrocks » Tue Aug 13, 2019 7:09 am

Paint stripped and all cleaned up.

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Willys MB 3/13/42 127415
Willys MB 1/9/45 404620


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Re: Willys MB 404620 1-9-45 'Calsat'

Post by horrocks » Thu Aug 15, 2019 4:58 am

Just the ancilliaries to strip and clean up;

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And off to the peerless Richard Payne at GPW Workshop in Suffolk for a full rebuild. Richard is a longtime Jeep owner and enthusiast, and is quickly establishing a reputation for exemplary attention to the minutest detail. I know that this engine is in good hands.
Toby

Willys MB 3/13/42 127415
Willys MB 1/9/45 404620

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Re: Willys MB 404620 1-9-45 'Calsat'

Post by Boyso » Thu Aug 15, 2019 5:24 am

Looking great Toby, keep it up! :)

You got some great looking workboots :D
44 GPW 231738 10/23/1944
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Re: Willys MB 404620 1-9-45 'Calsat'

Post by horrocks » Thu Aug 15, 2019 5:30 am

Boyso wrote:
Thu Aug 15, 2019 5:24 am
Looking great Toby, keep it up! :)

You got some great looking workboots :D
Thank you. I wondered how long it would take someone to notice my workbrogues!
Toby

Willys MB 3/13/42 127415
Willys MB 1/9/45 404620

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Re: Willys MB 404620 1-9-45 'Calsat'

Post by Boyso » Thu Aug 15, 2019 5:31 am

Wrenchin' in style!
44 GPW 231738 10/23/1944
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Re: Willys MB 404620 1-9-45 'Calsat'

Post by horrocks » Thu Aug 15, 2019 5:34 am

You bet!
Toby

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Willys MB 1/9/45 404620

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Re: Willys MB 404620 1-9-45 'Calsat'

Post by sjalbert » Thu Aug 15, 2019 6:18 am

I presume that 1-9-45 DOD is from the glove box plate. That looks right for your serial number. This jeep would have originally had an engine in the 532xxx range. I've got MB 403587 delivered 1-5-45 with engine # 531446 in my database. Yes the skew between serial number and engine number really was that high.

Your engine MB-433142 was cast 6-18 (1944) based on your photos. I'd love to know the machining date that is stamped near the rear journal bearing if you still have the engine disassembled.
Seth
******
1944 MB 349858, 20620361
1942 MBT 10968 viewtopic.php?f=18&t=149552" onclick="window.open(this.href);return false;
1942 MBT 15799, USA 0217497
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Collecting Willys Engine Info. Please send me Engine #, Casting Date & Machining Date if known

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Re: Willys MB 404620 1-9-45 'Calsat'

Post by horrocks » Thu Aug 15, 2019 6:23 am

Hi Seth, yes, glove box plate and chassis plate match. I'll ask Richard to photograph the number when he strips the engine down.
Toby

Willys MB 3/13/42 127415
Willys MB 1/9/45 404620

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Re: Willys MB 404620 1-9-45 'Calsat'

Post by horrocks » Wed Sep 11, 2019 3:53 am

Not such good news upon removing the T84. It contained no oil, just half a pint of dirty water.

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Toby

Willys MB 3/13/42 127415
Willys MB 1/9/45 404620

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Re: Willys MB 404620 1-9-45 'Calsat'

Post by horrocks » Sat Sep 14, 2019 8:37 am

Doesn't look quite so awful after a jet wash, dry and liberal spray of oil. Put aside until it can go to join the engine with Richard Payne at GPW Workshop for a full strip-down and rebuild.

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Toby

Willys MB 3/13/42 127415
Willys MB 1/9/45 404620

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