Barndoor engine?

67pickup · Posted: Wed Oct 11, 2006 1:07 pm Post subject: Barndoor engine?

Hi!
Can someone identify which year this engine 20-0174931 is? Does'nt make any sense checking the tech section here. http://www.thesamba.com/vw/archives/info/chassisdating.php
Maybe I'm just plain stupid, but I can't figure it out?
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RockStock · Posted: Wed Oct 11, 2006 1:38 pm Post subject:

looks like feb/march 1950 to me Exclamation

http://www.barndoor.dk/Chassisnumber.html
http://www.thesamba.com/vw/forum/viewtopic.php?t=195373
now where's the bus that goes with it Idea

the list on www.barndoor.dk would mean it would have a VIN before 20-00014...
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67pickup · Posted: Wed Oct 11, 2006 1:46 pm Post subject:

Exactly, rockstock! I guess you've seen it before today, don't know what you make of it?

RockStock · Posted: Wed Oct 11, 2006 1:53 pm Post subject:

what VW was it pulled out of?

i'm no expert, but i'd say its a very early 25hp bus engine
(looks like VW put a leading '0' after the '20-'. this doesn't seem to be captured on the engine list on thesamba or bd.dk?)

coil, fuel pump, air filter, and oil filler (at least) are strictly speaking incorrect...but an early bd engine

other than that, let the panel here chew it over! oh, & i'll have 1st dibs Embarassed

!
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67pickup · Posted: Wed Oct 11, 2006 2:04 pm Post subject:

KombiMonster · Posted: Wed Oct 11, 2006 2:19 pm Post subject:

what's up with that small ass belt?....
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49barndoor · Posted: Wed Oct 11, 2006 3:35 pm Post subject:

Thats one hell of an early motor Shocked

, mines from Nov 50 and is 20-0253527 Wink

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Anchovy · Posted: Wed Oct 11, 2006 3:46 pm Post subject:

House · Minutia Militia Joined: June 13, 2001 Posts: 1223

I call re-stamp.
Maybe a replacement case...
The numbers look way off from normal. Not only are they too fat,
but VW 4's don't meet at the top, 9's curve back around, etc.

BUCIOBATISTI · Posted: Wed Oct 11, 2006 4:39 pm Post subject:

Post some more pics, I'm not even sure it's a 25hp motor. The carb, intake, distributor, carb support bracket, and oil filler are all suspicious/later model possibly.
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RockStock · Posted: Wed Oct 11, 2006 5:10 pm Post subject:

click on em for bigger versions
(i expect 67pickup has gone to bed - i've assumed its ok to post these for the good of the thread - & so he can wake up to some answers.. Embarassed

)

looks like a 25hp to me. one other thing i noticed was one early heat exch, one later
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splitvws · Samba Member Joined: February 12, 2004 Posts: 139

Hi, in your pics it looks like it has the late style oil fill that mounts using the a larger cast bump on the case and has a treaded hole to hold it down. If so Id say its 53 and later only going by castings on the generator stand. Older cases the cast bump on the side of the generator stand is smaller and does not have a hole and treads. Any pics of the side of the generator stand?

Dave

[email protected] · Samba Member Joined: September 22, 2002 Posts: 1122

When did they change from the bright aluminium case to the dull alloy case in 50?

RickC · Posted: Wed Oct 11, 2006 7:19 pm Post subject:

Let's check the casting numbers on the side of the case .... That will tell if it's a later replacement item. I vote "restamp".
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BUCIOBATISTI · Posted: Wed Oct 11, 2006 8:58 pm Post subject:

Looks like it might have 25hp cylinder tin but it can't really be positively determined from those pics. The carb, intake manifold, carb support, and top half of the fuel pump and fuel lines are all later. The fuel pump isn't the oddball 1954/1955 intermediate one I've seen either that has a 25hp style bottom with the big fat screw in the side and a later style top that has "bumps" below the screws instead of the standard "ribs" as this one does. If it has 25hp tin on the heads, it must be a 25hp as the head bolts on a 36hp wouldn't fit beneath the 25hp style tin. You obviously have a early seamed fan shroud, early generator, and the early D regulator, too. It makes sense to me that it might actually be a 25hp engine that somebody "updated" the fuel system on for any number of reasons. Lack of ability to find the early 8mm fuel lines, needing to rebuild the fuel pump, rebuild the 26VFIS carb and not finding parts, holes in the original K intake manifold, who knows what or why. All of those parts got updated and the late oil filler wouldn't belong either...
Just brainstorming here, trying to trigger some thoughts as to what it is, was, and why it came to be what you have there is all.
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EverettB · Posted: Wed Oct 11, 2006 10:05 pm Post subject:

Those numbers look like a joke to me.

It does have a lot of early parts though.
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janerick3 · Posted: Wed Oct 11, 2006 11:49 pm Post subject:

The shiny case is either pre-Jan '51 VW or possibly a two-piece 356 case cast by VW (mid-'54 or earlier) with what appears to be a restamped 1950 BD serial number. The number shown reflects a late-Jan '50 built engine, at least five weeks before the first production barndoor rolled off the Wolfsburg assembly line. The casting dates on the generator stand and next to the oil pump will tell you a lot more about the case. 356 cases have their own serial number stamped by the case bolt directly under the carburetor.

The '56-up 36hp oil fillers will push-fit into '55 and earlier generator stands without any modifications--just don't use the threaded collar.

By the way, the red plug wires are original Bosch up to around 1955.
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BUCIOBATISTI · Posted: Wed Oct 11, 2006 11:55 pm Post subject:

Another detail that might be something some of you guys don't know that I learned a couple years back is that there are more than one crankstart breast tin. There is a 25hp version and a 36hp version. The difference is that the 25hp style has a actual *hole* for the downpipe from the oil filler and the 36hp has a *"U-shaped" Cutout* for the oil filler. Just another tidbit of information to pack away about early Bus engines.
_________________
Please visit my website at http://www.holygrailgarage.com to see more interesting and collectible Vintage VWs and Parts for sale. Thanks.

"I love the Roadster!"
-Charlie Hamill

"No dongs."
-Neil "NPBUSGUY"

IN2VWS · Posted: Thu Oct 12, 2006 12:51 am Post subject:

67pickup · Posted: Thu Oct 12, 2006 3:04 am Post subject:

Thanks for input, guys, and for the help with the pics, "rockstock"! Is it nice with a puzzle from time to time, or what?

I seriously don't know what this is, but I've checked the pics in "Original VW bus" by Meredith, and the numbers are obviously shaped differently. If it's an exchange engine, would they bother to renumber it to an older number? What would be the logical reason behind doing so? Rolling Eyes

Anyway it looks like it must be done professionaly, but I'm not able to distinguish any work there... if the numbers looks like a "joke", maybe it's a mechanics way to deal with a grumpy customer? Laughing

Please feel free to make qualified comments, surely someone must know. If there is any other signs to look for to get a positive ID (without total disassembly!), let me know, and I can get some more pics of it.

It's in my garage now, should I give it a good cleaning, you think?

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