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Tcash
Samba Member
Joined: July 20, 2011
Posts: 12843
Location: San Jose, California, USA
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 Posted: Mon Sep 04, 2017 8:15 pm Post subject: Fuel Pump T2 ID |
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| [url=https://www.thesamba.com/vw/forum/viewtopic.php?t=686001&start=0&postdays=0&postorder=asc&highlight=]Fuel Pump T2 ID[/url] |
Thanks to all that posted information!
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There are two kinds of pumps for the Type I upright engine.
1. Generator style fuel pump
2. Alternator style fuel pump, which is angled to clear the alternator
It is important you choose the correct Push Rod for the pump you are using.
1968-70 113 127 025 C w/Generator
Pierburg VW 3 8289 / Replacement Pump = Airtex 1070
40 HP fuel pump rebuild kit 111-198-553.
113 127 025 C, Type I Upright engine, w/Generator, Repair kit 111 198 555 A
1971-72 113 127 025 D, Type I Upright engine, w/Generator
M73-79 113 127 025 F > 113 127 025 G, Type I Upright engine, w/Alternator
kreemoweet
Stock fuel pumps used on 71-74 VW type 1 engines
CHOOSING THE RIGHT PUSHROD
First determine if the Fuel pump Plunger arm (flange) is Recessed or Protruding.
If Recessed it takes the longer Push rod = 108mm (4.25")
If Protruding it takes the shorter Push rod = 100mm (4")
There was also a angled pump with a Generator style base produced.
So double check before you buy the Push rod.
Generator style Push rod 113 127 307 - Recessed plunger arm = 108mm (4.25) Pushrod.
Alternator style Push rod 113 127 307 A - Protruding plunger arm = 100mm (4") pushrod.
On some Aftermarket Pumps the In and Out are reversed.
So test pump before hooking up hoses.
You will also need to adjust the pushrod height and pressure per your repair manual. Make sure the Intermediate flange, the plastic piece the Push rod goes through does not bind in the case. If it does when it gets hot it will seize the Push rod and stop pumping and you will be wondering why you are running out of gas.
Link
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1972-74, 1.7-1.8, Carb. Mech. Fuel pump 021 127 025 A > 021 127 025 B
021 198 555 Fuel pump rebuild kit Type IV 1,7-1,8L
The hose is a fail safe, to drain the fuel if the diaphragm ruptures.
Type IV 021 127 307 A fuel pump pushrod 139.8 mm (5.5") long
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1974, from ch. no. 132 408 to the end of 74 California models, 1.8, FI Elect. Fuel pump 311 906 091 D
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1975-79, 1.8-2.0, FI Elect. Fuel Pump 251 906 091 > 043 906 091
Bosch 0 580 463 010 > 0 580 463 016 >0 580 464 085 / 69469 / GFP 301 screw on terminals /
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FUEL PUMP TESTING
FI PUMP SPECS
| ratwell wrote: |
With the pump running unrestricted, 1.5-2L/min is the minimum. I tested my pump and it does 2-2.25L/min.
With the pressure regulator (PR) attached, there should be at least 1L/min coming out of the PR. This is naturally hard to test when the fuel tank is not empty but it's easy to do on the bench. |
Furgo wrote "The original FI bus pump was rated at 2.5 bar".
Operating Pressure: 43.5 PSI (3 Bar)
Minimum Flow @ Outlet: 34 GPH (130LPH)
Last edited by Tcash on Mon Oct 02, 2017 1:58 pm; edited 3 times in total |
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wcfvw69
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Joined: June 10, 2004
Posts: 13696
Location: Arizona
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| Posted: Mon Sep 04, 2017 8:24 pm Post subject: Re: Fuel Pump T2 ID |
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Hey Tcash,
I'm pretty sure that the type 1 1971 bus engines used the dome tops all the way through 1971 vs. the fuel pump that the bug changed to in 1971. The bugs used the square top until switching to the crimp top pumps in mid 1970.
Here's a picture from a 1971 dual port bus engine.
_________________
Contact me at [email protected]
Follow me on instagram @sparxwerksllc
40+ years of VW repair, and VW parts and vehicle restoration experience.
The Samba member since 2004.
**Now rebuilding throttle bodies for VW's and Porsche's**
**Restored German Bosch distributors for sale or I can restore yours**
**Restored German Pierburg fuel pumps for sale or I can restore yours**
**Restored Porsche fuel pumps or I can restore yours**
**Restored Porsche distributors or I can restore yours** |
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Tcash
Samba Member
Joined: July 20, 2011
Posts: 12843
Location: San Jose, California, USA
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| Posted: Mon Sep 04, 2017 8:37 pm Post subject: Re: Fuel Pump T2 ID |
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113 127 025 D NOS Pierburg Fuel Pump
113 127 025 F NOS fuel pump 73-79 1600cc
025 127 025 A NOS fuel pump
021 127 025 B NOS fuel pump 1,7-2,0L Type4 engine
021 127 025 H NOS type 4 APG Carburetor fuel pump
021 127 307 A NOS Type 4 Fuel Pump Rod
021 198 555 NOS fuel pump gaskets Type 4 1,7-1,8L
211 127 025 NOS Type 2 Fuel Pump 1972-1974
251 906 091 NOS Fuel pump 75-79 T2 FI
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Tcash
Samba Member
Joined: July 20, 2011
Posts: 12843
Location: San Jose, California, USA
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| Posted: Mon Sep 04, 2017 8:44 pm Post subject: Re: Fuel Pump T2 ID |
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| wcfvw69 wrote: |
Hey Tcash,
I'm pretty sure that the type 1 1971 bus engines used the dome tops all the way through 1971 vs. the fuel pump that the bug changed to in 1971. The bugs used the square top until switching to the crimp top pumps in mid 1970.
Here's a picture from a 1971 dual port bus engine.
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Domed top with two pressed in nipples right. I found a picture of one but lost it.
When I run across one, I will plug it in.
Thank you
Tcash |
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Tcash
Samba Member
Joined: July 20, 2011
Posts: 12843
Location: San Jose, California, USA
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| Posted: Tue Sep 26, 2017 2:12 pm Post subject: FI Electric Fuel Pump Filter Screen |
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| BayCreamPuff wrote: |
Doubt if this thing was ever replaced. Cleaned up the years of gunk, but you can see the bosch and vw numbers there. The barb on the input is so corroded it's flat on one side.
The screen was inside the input.
Here's the instructions from the new one mentioning the screen, but maybe it's referring to the inline fuel filter.
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jack-o-van
Samba Member
Joined: April 27, 2017
Posts: 109
Location: Milwaukee
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| Posted: Tue Jan 21, 2020 9:18 pm Post subject: Re: Fuel Pump T2 ID |
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| wcfvw69 wrote: |
Hey Tcash,
I'm pretty sure that the type 1 1971 bus engines used the dome tops all the way through 1971 vs. the fuel pump that the bug changed to in 1971. The bugs used the square top until switching to the crimp top pumps in mid 1970.
Here's a picture from a 1971 dual port bus engine.
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Is there a performance difference between the dome top and square top? Would the square top work as well in the 71 bus?
- Jack.
_________________
| If he meant it of me, he would have been "spot on" when AeroMech wrote: |
| in my opinion you don't know shit |
| And I love what raygreenwood wrote: |
| I will probably be seen as an asshole for this comment.....but thats fine because I am an asshole. |
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wcfvw69
Samba Purist
Joined: June 10, 2004
Posts: 13696
Location: Arizona
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| Posted: Wed Jan 22, 2020 7:26 am Post subject: Re: Fuel Pump T2 ID |
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There's no performance difference. Both pumps put out 3psi. The main difference between the two pumps is the Square top has a built in fuel shut off valve at the top. The dome tops had to have a seperate flow valve mounted in some applications.
_________________
Contact me at [email protected]
Follow me on instagram @sparxwerksllc
40+ years of VW repair, and VW parts and vehicle restoration experience.
The Samba member since 2004.
**Now rebuilding throttle bodies for VW's and Porsche's**
**Restored German Bosch distributors for sale or I can restore yours**
**Restored German Pierburg fuel pumps for sale or I can restore yours**
**Restored Porsche fuel pumps or I can restore yours**
**Restored Porsche distributors or I can restore yours** |
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kreemoweet
Samba Member
Joined: March 13, 2008
Posts: 4131
Location: Seattle, WA
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| Posted: Wed Jan 22, 2020 12:10 pm Post subject: Re: Fuel Pump T2 ID |
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| jack-o-van wrote: |
| Is there a performance difference between the dome top and square top? Would the square top work as well in the 71 bus? |
What do you mean by "performance"? The '71 bus was equipped with the 34 PICT-3 carb, and the corresponding pump was the later crimped-top (un-rebuildable) pump
with an output pressure spec of 3-5 psi. Any pump within that spec will work fine. The round- and square-top Pierburg pumps had various output psi specs, ranging up
to 4.5 psi for the ones put in the dual-carb Type 3's. Any of the Pierburg pumps will work excellent in a '71 bus, with generator or alternator. The square-top I have in my
'71 bus has been running trouble-free for almost 20 years.
This assumes parts are all stock. Those old rebuildable pumps are very likely to have a replacement diaphgragm installed,
which could be as good as original, or completely unsuitable. There are qualified rebuilders advertising right here in thesamba.com classifieds.
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'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! |
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jack-o-van
Samba Member
Joined: April 27, 2017
Posts: 109
Location: Milwaukee
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| Posted: Wed Jan 22, 2020 1:51 pm Post subject: Re: Fuel Pump T2 ID |
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Thanks kreem, looking to buy a square-top from Bill. Just always afraid of doing something wrong, 'cuz I've done so many stoopid things before...
_________________
| If he meant it of me, he would have been "spot on" when AeroMech wrote: |
| in my opinion you don't know shit |
| And I love what raygreenwood wrote: |
| I will probably be seen as an asshole for this comment.....but thats fine because I am an asshole. |
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Tarzandy
Samba Member
Joined: May 06, 2020
Posts: 1
Location: Manitoba, Canada
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| Posted: Thu May 07, 2020 2:53 am Post subject: Re: Fuel Pump T2 ID |
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Hello, first post on here. This thread has the most info i have found about the T2 fuel push rod. OEM # 021-127-307. I got the bright idea to go from the electric lift pump setup on my 73 camper to the mechanical setup when I seen Cip1 started stocking the mech. Pump. However just found out they don’t carry the pushrod. Only source I could find was from just campers and brickworks but I can’t justify spending 27 pounds on a pushrod and 75 pounds to ship it to Canada. Does anyone have and extras kicking around or know of a better source? I have even contemplated making my own??? Also if anyone has the spec or what the cam lift should be? Doesn’t seem to be lots of info out there about this as everyone seems to go electric. I have been sceptical about the fuel setup on my bus from day one as it somehow filled the engine block with fuel the first week I owned it.
Thanks for reading |
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