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70deluxebus
Samba Member
Joined: December 21, 2004
Posts: 93
Location: Carrollton, GA
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 Posted: Mon Sep 26, 2011 1:37 pm Post subject: 25 & 36 hp fuel pump |
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Does anyone know the difference and how to tell them apart? Thanks
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Lindy |
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36hplandspeedracer
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Joined: January 30, 2006
Posts: 690
Location: Mendon, Utah
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| Posted: Mon Sep 26, 2011 2:52 pm Post subject: |
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Lindy, contact Ed Fall at Vintage Werks for the specific details. He is the premier rebuilder of these components and can supply you with specific details for indentification.
[email protected]
I hope this is helpful..................
Burly |
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henry roberts
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Joined: February 24, 2003
Posts: 717
Location: australia
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| Posted: Mon Sep 26, 2011 4:30 pm Post subject: |
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here is a rough run down, the emphasis being on rough.
split etc till 1953? flat top. towards the end of this style they changed from an 8mm fuel line to a 6mm fuel line, there were probably heaps of other changes.
till mid 1955 wave top with drain screw on the side:
a few months? only mid/late 55, wave top with the boss for the drain screw but not tapped/fitted with the screw.
sorry can't find a pic atm.
56 wave top with no screw: edit, this may not be an actual production model.
circa 57, ribbed top with short outlet:
changed in 58? to ribbed top with tall outlet:
the last style
some useful threads:
54/5 engine thread:
http://www.thesamba.com/vw/forum/viewtopic.php?t=179439
58/9 thread:
http://www.thesamba.com/vw/forum/viewtopic.php?t=401420
Last edited by henry roberts on Mon Sep 26, 2011 10:54 pm; edited 1 time in total |
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EverettB 
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Joined: April 11, 2000
Posts: 42221
Location: Phoenix, AZ
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| Posted: Mon Sep 26, 2011 8:29 pm Post subject: |
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Nice breakdown.
Some more info:
53s are 6mm because they have the carburetor with the accelerator pump.
| henry roberts wrote: |
56 wave top with no screw:
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I've never heard that, I think that might just be a mismatched top and bottom.
For example, the bottom wore out so it was replaced while the original top was retained.
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henry roberts
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Joined: February 24, 2003
Posts: 717
Location: australia
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| Posted: Mon Sep 26, 2011 10:10 pm Post subject: |
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i could be wrong, it's been known to happen  |
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70deluxebus
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Joined: December 21, 2004
Posts: 93
Location: Carrollton, GA
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| Posted: Tue Sep 27, 2011 6:44 am Post subject: Thanks guys. |
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Appreciate the help.
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