| Author |
Message |
OTTO 1303
Samba Member
Joined: March 17, 2020
Posts: 718
Location: Louisiana
|
 Posted: Sun Jul 25, 2021 10:06 am Post subject: Re: Rebuildable Fuel Pump with Alternator? |
 |
|
Thanks for the info.
I know what to do now.
_________________
74 Super Sun Bug - OTTO
74 Super - DANZIG
74 Super - HERZOG
16 R-Line |
|
| Back to top |
|
 |
Cusser
Samba Member
Joined: October 02, 2006
Posts: 33475
Location: Hot Arizona
|
| Posted: Sun Jul 25, 2021 8:15 am Post subject: Re: Rebuildable Fuel Pump with Alternator? |
|
|
| OTTO 1303 wrote: |
| Pump shaft reverts to “generator” length? |
The square top Pierburg fuel pump uses the longer 108mm steel pushrod.
The issue with a non-slanted fuel pump and an alternator can be clearance to remove the fuel pump without first lifting/removing alternator or fan shroud. Some folks have used bolts to replace the fuel pump mounting studs.
_________________
1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
|
| Back to top |
|
|
Pruneman99
Samba Member
Joined: February 22, 2012
Posts: 5013
Location: Oceanside
|
| Posted: Sun Jul 25, 2021 7:00 am Post subject: Re: Rebuildable Fuel Pump with Alternator? |
|
|
| The shaft length is determined by the type of pump. I forgot to put a square top and a round top side by side after work yesterday. Maybe today if I can remember. |
|
| Back to top |
|
|
OTTO 1303
Samba Member
Joined: March 17, 2020
Posts: 718
Location: Louisiana
|
| Posted: Sun Jul 25, 2021 6:56 am Post subject: Re: Rebuildable Fuel Pump with Alternator? |
|
|
Pump shaft reverts to “generator” length?
_________________
74 Super Sun Bug - OTTO
74 Super - DANZIG
74 Super - HERZOG
16 R-Line |
|
| Back to top |
|
|
brando90gl
Samba Member
Joined: July 31, 2007
Posts: 411
Location: Marion,NC
|
| Posted: Sun Jul 25, 2021 5:01 am Post subject: Re: Rebuildable Fuel Pump with Alternator? |
|
|
No “destructive mods” necessary. Square tops work fine with alternators.
A couple weeks ago my gen shit the bed and I chose to do an alt swap.
_________________
67 Type 1
68 Campmobile
70 Single Cab |
|
| Back to top |
|
|
Pruneman99
Samba Member
Joined: February 22, 2012
Posts: 5013
Location: Oceanside
|
| Posted: Sat Jul 24, 2021 1:24 pm Post subject: Re: Rebuildable Fuel Pump with Alternator? |
|
|
| What about using a round top? I'd have to put them side by side, but I think the round top is shorter. |
|
| Back to top |
|
|
Meiang
Samba Member
Joined: September 27, 2016
Posts: 661
Location: Perth, Western Australia
|
| Posted: Sat Jul 24, 2021 11:54 am Post subject: Re: Rebuildable Fuel Pump with Alternator? |
|
|
There cannot be much clearance (if any) with the alternator.
Here are three genuine VW fuel pumps which I have, one for a generator equiped engine (non-rebuildable pump), one for an alternator equiped engine (non-rebuildable pump) and a rebuildable fuel pump for a generator equiped engine.
I don't think a non-rebuildable fuel pump would have clearance with an alternator fitted because the top is a lot wider.
|
|
| Back to top |
|
|
Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 80451
Location: Sneaking up behind you
|
|
| Back to top |
|
|
OTTO 1303
Samba Member
Joined: March 17, 2020
Posts: 718
Location: Louisiana
|
| Posted: Sat Jul 24, 2021 10:11 am Post subject: Re: Rebuildable Fuel Pump with Alternator? |
|
|
| Xevin wrote: |
| kreemoweet wrote: |
The Pierburg "square-top" stock pumps (as bug models up to 1970 came with) work fine with the
AL82 Bosch alternators. It's possible the carb mounting nuts will have to be loosened and the carb
lifted a half-inch or so temporarily while installing/removing the fuel pump. |
Tight. But mine comes right off on my set up.
|
I do believe this is the one I saw.
Is there a PN to differentiate?
Any issues with a Motorola Alternator?
_________________
74 Super Sun Bug - OTTO
74 Super - DANZIG
74 Super - HERZOG
16 R-Line |
|
| Back to top |
|
|
Xevin
Samba Member
Joined: January 08, 2014
Posts: 9032
|
| Posted: Sat Jul 24, 2021 7:10 am Post subject: Re: Rebuildable Fuel Pump with Alternator? |
|
|
| kreemoweet wrote: |
The Pierburg "square-top" stock pumps (as bug models up to 1970 came with) work fine with the
AL82 Bosch alternators. It's possible the carb mounting nuts will have to be loosened and the carb
lifted a half-inch or so temporarily while installing/removing the fuel pump. |
Tight. But mine comes right off on my set up.
_________________
Keep on Busin'
| 67rustavenger wrote: |
GFY's Xevin and VW_Jimbo!  |
| Clatter wrote: |
| Damn that Xevin... |
| skills@eurocarsplus wrote: |
I respect Xevin and he's a turd  |
| SGKent wrote: |
My God! Xevin and I 100% agree  |
|
|
| Back to top |
|
|
kreemoweet
Samba Member
Joined: March 13, 2008
Posts: 4148
Location: Seattle, WA
|
| Posted: Sat Jul 24, 2021 5:50 am Post subject: Re: Rebuildable Fuel Pump with Alternator? |
|
|
The Pierburg "square-top" stock pumps (as bug models up to 1970 came with) work fine with the
AL82 Bosch alternators. It's possible the carb mounting nuts will have to be loosened and the carb
lifted a half-inch or so temporarily while installing/removing the fuel pump.
_________________
'67 bug: seized by the authorities
'68 bug: seized by the authorities
'71 kombi: not yet seized by the authorities
Stop dead photo links! Post your photos to The Samba Gallery! |
|
| Back to top |
|
|
OTTO 1303
Samba Member
Joined: March 17, 2020
Posts: 718
Location: Louisiana
|
| Posted: Fri Jul 23, 2021 8:39 pm Post subject: Rebuildable Fuel Pump with Alternator? |
|
|
While perusing through a few photos of members engine bays, I noticed a rebuildable style fuel pump sitting next to an Alternator.
Although my fuel pump is in working condition, and appears to be the original, or at least, a VW pump from that era, if I had to replace, I would much prefer to use a rebuildable Pierburg or similar, than anything currently being produced.
Anyone have any knowledge if this can be done WITHOUT a destructive mod to other engine components?
_________________
74 Super Sun Bug - OTTO
74 Super - DANZIG
74 Super - HERZOG
16 R-Line |
|
| Back to top |
|
|
|
