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Envious
Samba Member
Joined: January 08, 2003
Posts: 1821
Location: Toronto, Ontario, Canada
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 Posted: Sat May 14, 2005 4:38 pm Post subject: Early Fuel pump rebuild questions |
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How far do I have to compress the lever when I replace the diaphram in my 1500s. I know my 40hp pumps are 14mm but I wasn't sure if these were the same. I've heard that the 'S' models were setup with a little higher pressure. As luck would have it I'm missing the first 6 pages from my shop manual covering the fuel pump.
Secondly, what length should the fuel pump rod be? 4.25" or am I dreaming?
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Russ Wolfe
Samba Member
Joined: October 08, 2004
Posts: 25187
Location: Central Iowa
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| Posted: Sat May 14, 2005 4:52 pm Post subject: |
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The pressure of the pump is controlled by the spring. If you are using a T-1 kit, reuse your old T-3 spring. As for depressing the arm, you can use the engine to depress it. Install the pump with the fuel pump push rod on TDC. Now, tighten the screws around the housing. All they are wanting you to do , is make sure you are not stressing the diaphram in operation.
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Envious
Samba Member
Joined: January 08, 2003
Posts: 1821
Location: Toronto, Ontario, Canada
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| Posted: Sat May 14, 2005 5:27 pm Post subject: |
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What about the rod? Mine actually measures a little more 4 1/8" WTF?! I thought they were either 4 or 4.25".
_________________
71 Type 1302 Custom
64 Type 151
63 Type 117 L469 Anthracite
64 Type 361 L575 Nutria
64 Porsche 356c
56 Type 113 L227 Strato Silver
52 BSA C11G
59 Heilite Single Wheel Camping Trailer
56 Allstate Single Wheel
84 Vanagon Westfalia
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Russ Wolfe
Samba Member
Joined: October 08, 2004
Posts: 25187
Location: Central Iowa
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| Posted: Sat May 14, 2005 5:39 pm Post subject: |
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they should be all the same except for pumps on the T-1's with alternators. And T-2 1700's were the only ones I know of that wore out the pushrods.
I can go out and measure one if you want.
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Society is like stew. If you don't keep it stirred up, you end up with a lot of scum on the top!--Edward Abbey
Gary: OK. Ima poop. |
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Envious
Samba Member
Joined: January 08, 2003
Posts: 1821
Location: Toronto, Ontario, Canada
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| Posted: Sat May 14, 2005 5:50 pm Post subject: |
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| Russ Wolfe wrote: |
they should be all the same except for pumps on the T-1's with alternators. And T-2 1700's were the only ones I know of that wore out the pushrods.
I can go out and measure one if you want. |
If you could, it would put my mind at ease. I've had a rough day with this. I picked up a tank of contamenated gas which has caused havac with my entire fuel system. I've had to pull the tank, blow out the lines, rebuild both of my carbs as well as my fuel pump. By late this afternoon it was running better than it ever has until I put the fuel pump back on. I installed a type 1 pump just while I was trouble shooting. Once I had the car purring, I put the stock pump back on and havent been able to get the thing running since. Even when I turn the car over it doesn't sound right. I see a For Sale sign in my future. Not to mention I stink of gas.
_________________
71 Type 1302 Custom
64 Type 151
63 Type 117 L469 Anthracite
64 Type 361 L575 Nutria
64 Porsche 356c
56 Type 113 L227 Strato Silver
52 BSA C11G
59 Heilite Single Wheel Camping Trailer
56 Allstate Single Wheel
84 Vanagon Westfalia
http://www.thesamba.com/vw/forum/viewtopic.php?t=388225 |
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Russ Wolfe
Samba Member
Joined: October 08, 2004
Posts: 25187
Location: Central Iowa
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| Posted: Sat May 14, 2005 5:57 pm Post subject: |
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Just went out and measured the one in my "S". 4.25"
Has someone ground some off of that one to lower the fuel pressure?
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Society is like stew. If you don't keep it stirred up, you end up with a lot of scum on the top!--Edward Abbey
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Envious
Samba Member
Joined: January 08, 2003
Posts: 1821
Location: Toronto, Ontario, Canada
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| Posted: Sat May 14, 2005 6:00 pm Post subject: |
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That's what I'm thinking. Thanks for checking that.
_________________
71 Type 1302 Custom
64 Type 151
63 Type 117 L469 Anthracite
64 Type 361 L575 Nutria
64 Porsche 356c
56 Type 113 L227 Strato Silver
52 BSA C11G
59 Heilite Single Wheel Camping Trailer
56 Allstate Single Wheel
84 Vanagon Westfalia
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Russ Wolfe
Samba Member
Joined: October 08, 2004
Posts: 25187
Location: Central Iowa
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| Posted: Sat May 14, 2005 6:01 pm Post subject: |
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Do you have another rod?? Let me know, I have them laying all over the place. I use them to plug fuel lines, ETC.
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Bobnotch
Samba Member
Joined: July 06, 2003
Posts: 22413
Location: Kimball, Mi
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| Posted: Sun May 15, 2005 6:07 am Post subject: |
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| Russ Wolfe wrote: |
| Do you have another rod?? Let me know, I have them laying all over the place. I use them to plug fuel lines, ETC. |
Me too.  I use the 110mm long one for the inlet, and the 100mm (bug w/alt) long one for the outlet.  It allows me to keep things straight when it might be a couple of days before reassembly. 
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71 Notch ...aka Krunchy; build pics here;
http://www.thesamba.com/vw/forum/viewtopic.php?t=249390 -been busy working
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