641087 block survey |
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sean
Moderator Group Sponsor Member Joined: 20 July 2005 Location: North Idaho Status: Offline Points: 7388 |
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Andy:
If you can get the casting details, it would be possible to narrow the range of dates. eg, casting number, casting date (mo./day) and some of the finer points shown here: |
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Old Boy
Member Joined: 24 Mar. 2009 Location: England Status: Offline Points: 501 |
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Hi Sean, here are the block casting numbers on my engine 4LR110818.
641087-L-W-12-A-N1-CR-N2
7 12
9-25C
I have writen the drivers side numbers in the same pattern as they are on the block.
The block is the later doughnut type.
I would like to know what year the engine was made if possible.
The Jeep is 29488.
Thank you,
Andy.
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46 CJ2A 29488, Harvest Tan, Sunset red wheels.
99 TJ. 2015 Ford Kuga Ecoboost. |
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Bob W
Member Sponsor Member x 4 Joined: 08 Aug. 2005 Location: Monticello, NY Status: Offline Points: 1691 |
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Looks like September 1951 |
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Old Boy
Member Joined: 24 Mar. 2009 Location: England Status: Offline Points: 501 |
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Thank you!
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46 CJ2A 29488, Harvest Tan, Sunset red wheels.
99 TJ. 2015 Ford Kuga Ecoboost. |
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flitemedic
Member Joined: 09 Nov. 2009 Location: Texas Status: Offline Points: 56 |
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Sean...I have the following
'46 CJ2A 28100 Engine 638632-W A-NI-CR-N2 CLOCKED 12-17 Radius CROSS Two Pads below distributor Drain fwd. Toby |
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sean
Moderator Group Sponsor Member Joined: 20 July 2005 Location: North Idaho Status: Offline Points: 7388 |
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Thanks Toby.
Yours is an early 638632 casting, I'm looking for info on 641087 castings. Appreciate the thought though! Sean
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Ritt
Member Joined: 20 July 2005 Location: Bethel CT Status: Offline Points: 1989 |
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Sean,
I have an engine that is claimed to be a '47, however, after studying your 641087 data thread I'm not sure what it is.
appears to be the v1.3 column but it has a data plate boss under the distributor mount.
ser. no. - 3507681 (water pump)
Casting - 641087 L W10 A NI-CR-N2
lower, left, rear - 10-31 B
Edited by Ritt - 20 Aug. 2010 at 12:55pm |
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Rit
1948 2A, "RAISIN COOKIES THAT LOOK LIKE CHOCOLATE CHIP COOKIES ARE THE MAIN REASON I HAVE TRUST ISSUES" |
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Longhunter
Member Joined: 13 Dec. 2006 Location: Meridian, MS Status: Offline Points: 2171 |
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Isn't that spot under the distributor where the plate goes on a Kaiser Supersonic? (Henry J engine)
Edited by Longhunter - 20 Aug. 2010 at 2:48pm |
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Mike in Mississippi
2006 Jeep Rubicon 1946 CJ2a #49667 1946 Bantam T3-C #7909 1 UNDERSTANDING Wife "2 wrongs don't make a right but 3 rights will make a left".... Gallagher |
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Longhunter
Member Joined: 13 Dec. 2006 Location: Meridian, MS Status: Offline Points: 2171 |
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The Henry J car was produced from 1950 to 1953. Did they make an over-production of the engines and start putting them in Jeeps?
Seems like I have read where the L 134 engine was used in vehicles up into the 1960's...... Is this so?
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Mike in Mississippi
2006 Jeep Rubicon 1946 CJ2a #49667 1946 Bantam T3-C #7909 1 UNDERSTANDING Wife "2 wrongs don't make a right but 3 rights will make a left".... Gallagher |
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sean
Moderator Group Sponsor Member Joined: 20 July 2005 Location: North Idaho Status: Offline Points: 7388 |
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Rit:
Don't know how to interpret your engine s/n, but ...
Edited by sean - 20 Aug. 2010 at 1:34pm |
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Ritt
Member Joined: 20 July 2005 Location: Bethel CT Status: Offline Points: 1989 |
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Oh man, my falt for not doing my homework. Upon rereading the email corrispondence with the PO, he claimed the engine came out of a 46/47 2A. My Jeep is far from perfect and it does appear to be in decent shape (compressions running ~ 60psig).
Thanks guys for the great help, and Sean again, for all of your great historical work.
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Rit
1948 2A, "RAISIN COOKIES THAT LOOK LIKE CHOCOLATE CHIP COOKIES ARE THE MAIN REASON I HAVE TRUST ISSUES" |
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Bob W
Member Sponsor Member x 4 Joined: 08 Aug. 2005 Location: Monticello, NY Status: Offline Points: 1691 |
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The 35xxxxx serial numbers are Henry J engines. The rivets remaining near the distributor held the Supersonic data tag. Regular Jeep engines didn't have a tag. Unfortunately I have not found anyone who can align Supersonic engine serial numbers with automobiles. I doubt that Supersonic engines were ever factory installed in Jeeps. I do have a theory why so many found their way into Jeeps. What if a brand new replacement Kaiser Supersonic engine cost less than a brand new replacement Willys Jeep engine? It wouldn't take long for people to figure out they could save a few bucks with a Supersonic.
Henry J cars used a different distributor and oil pan, among other things, than a Jeep. Some 35xxxxx engines I have surveyed do have remaining Henry J components thereby proving a few did actually get swapped in from a car. Edited by Bob W - 21 Aug. 2010 at 12:39am |
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UKHokie93
Member Joined: 26 Oct. 2013 Location: Charlotte, NC Status: Offline Points: 1 |
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Sean,
Here are a couple of pics of the motor that came out of my '42 GPW. Based on my research, and the wealth of information you have provided, it appears as if this 641087 block and T-90 transmission that is in my GPW came out of a CJ2A. The tranny was cast 6-19-46... Can you give me details on the block, when it was cast and what it would have originally been in? 641087-L-W7 A N1 - CR - N2 Casting date may be 11-4 ? Serial no J253982 Appears to be 641087 v1.1 Thanks, Sean uploads/5944/Mount_Airy-20130925-00090.zip uploads/5944/Pine_Creek-20131025-00162.zip |
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kansascat
Member Joined: 23 Aug. 2012 Location: s. central ks Status: Offline Points: 372 |
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Ran across this engine recently. From what these pics show any idea just what year or model it would have came in?
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So many projects and so little time.
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kansascat
Member Joined: 23 Aug. 2012 Location: s. central ks Status: Offline Points: 372 |
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Hmmm, well you better have better eyes then mine to see those pics. I have no idea how to make them bigger or why they came thru so small.
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So many projects and so little time.
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oldarkie
Member Joined: 06 Sep. 2021 Location: mena ar 71953 Status: Offline Points: 10 |
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OLD ARKIE HERE WITH THE INFO OF MY CJ ENGINE ON THE BLOCK THERE IS THE FOLLOWING.
641087-L-c3a.m I have no vehicle just the remains of the engine which I am attempting to rebuild. I am curious as to whether is a cj2 and if not what cj--- is it. thanks ps there is a semi circle with a series of dots with as arrow pointing between the 3r and 4th dot and a 5-8 under that. thank you oldarkie
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oldarkie
Member Joined: 06 Sep. 2021 Location: mena ar 71953 Status: Offline Points: 10 |
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641087-L-wc3A H is this a cj2 or3 or???????old arkie
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Bruce W
Member Joined: 29 July 2005 Location: Northeast Colorado Status: Offline Points: 9651 |
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Definitely not a CJ2. Probably a CJ2-A, possibly a wagon or a truck. Maybe early CJ3A?
BW
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It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
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