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    Thread: replacing transfer pump

    1. 10-13-2008 10:07 AM #1
      On a 1990 corrado.

      I would like to know if you replace the transfer pump will the fuel inside the tank spill out?


    2. Member sdezego's Avatar
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      10-13-2008 10:39 AM #2
      if the car is level, you can remove the cap in the trunk to access the transfer pump w/o issues. I personally wouldn't remove it with more than say 1/2 tank. Just becuase it is easy to splash and drip while removing and gas stink is hard to get rid of.

      Also, if you are replacing the transfer pump you are in for a treat. There is a connector hose/piece that is only avail from the dealer and is ~$40... IN addition, there is a rubber O'ring that seals against the pressure line and you should ensure it is in good shape (I replaced mine with one I luckily had from an old unknown carb rebuild kit). I just went through all of this when I decided to change the x-fer pump just for General principle

      That whole setup is a very strange one and is not the same as the Mk1 where the pump just hangs off of a bracket.

      Pic of said setup..





      Modified by sdezego at 10:41 AM 10-13-2008

      Build: Project sc2020

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    3. 10-13-2008 11:23 AM #3
      you got the part number of the dealer part?
      thanks

    4. 10-13-2008 01:15 PM #4
      dude... the 90 had like 4 different fuel pumps, you really need to pull it out and get the right one yourself.

      My 90 has a VR pump in it (who knew)


    5. Member sdezego's Avatar
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      '90 Corrado | '62 Harley Panhead
      10-13-2008 05:25 PM #5
      Quote, originally posted by potatonet »
      dude... the 90 had like 4 different fuel pumps, you really need to pull it out and get the right one yourself.

      My 90 has a VR pump in it (who knew)

      The 90 did not have 4 different pumps... There were 2 designs:

      Early '90 with dual Pumps (Transfer pump and External Main Pump)
      Late '90 Single 2stage unit in take (Same as Vr)

      Since he was asking about the transfer pump, he has the early design and there was only one type transfer pump.

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    6. Member sdezego's Avatar
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      '90 Corrado | '62 Harley Panhead
      10-13-2008 05:26 PM #6
      Quote, originally posted by running-on-vegetableoil »
      you got the part number of the dealer part?
      thanks

      357919133

      Talk to Zeb at 1stvwparts.com . He just checked the price for me @ $44.69

      The website will show an incorrect superceded PN if you try to order w/o calling.

      Shawn

      Build: Project sc2020

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    7. 10-14-2008 09:15 AM #7
      there is two thicker gauge wires and two thinner gauge.

      the thicker ones is for the pump and when i jumped them direct to the battery I get a short. The red and white strip is positive and beige is ground.
      So I guess the pump is toast?


    8. Member sdezego's Avatar
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      '90 Corrado | '62 Harley Panhead
      10-14-2008 09:19 AM #8
      Sounds like it. The pump could be seized up.
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    9. 10-14-2008 09:33 AM #9
      do you think i can reverse the polarity to see if it can unseize itself?

    10. Member sdezego's Avatar
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      '90 Corrado | '62 Harley Panhead
      10-14-2008 09:45 AM #10
      No.

      New the pump is only $55. It is worth it for piece of mind.

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    11. 10-14-2008 07:00 PM #11
      plus the rubber thing is another 50

    12. 10-15-2008 09:45 PM #12
      correct me if Im wrong but there were also 2 other pumps, one of which was from cars from ohio and it was a square pump unit, and the other unit with the filter around the sides

    13. Member sdezego's Avatar
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      '90 Corrado | '62 Harley Panhead
      10-15-2008 09:55 PM #13
      The pump with the filter around the sides is the main pump on the early '90 and it bolts into the plastic external housing. It still uses the late A1/16v SII/mk2 transfer pump in the tank.

      The later '90 had the single in tank 2 stage unit/housing, same as the Vr. Original was a Pierburg, but then was replaced by a VDO unit and sender after Pierburg stopped making replacements in about '95?? or so...

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    14. 10-16-2008 06:00 PM #14
      And just to help anyone out with re-intalling the entire set-up in the tank once they get the new pump hooked up....

      slide the giant seal down off of the entire unit just a tad so it's in the tank FIRST (part #2 in the diagram) then the entire thing slips down inside nice and easy. It took me about 40 minutes to figure out that little piece of know how and a lot of cursing because I couldn't get the threaded attachment to grab enough and the seal to quit jamming. Once I figured it out it's like a 15 minute job and it sure as hell isn't "installation is the reverse of removal"




      Modified by GTItus at 4:02 PM 10-16-2008


    15. 10-16-2008 06:08 PM #15
      wonder where that other one came from


    16. Member sdezego's Avatar
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      10-16-2008 08:48 PM #16
      Quote, originally posted by potatonet »
      wonder where that other one came from

      Same era Golf I know for sure.

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    17. Member sdezego's Avatar
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      '90 Corrado | '62 Harley Panhead
      10-16-2008 08:50 PM #17
      Also, if you have this style, make sure you line up the arrow on the tank cover with the arrow embossed on the tank itself or else you fuel gauge might bee off or not work becuase the float can get stuck.
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    18. Member Pete O. Arguelles's Avatar
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      10-21-2008 04:42 AM #18
      The easiest, fastest way is to get the fuel tank, lines and fuel filter and support bracket from a single pump G60. Don't for get the harness you only need the last 2 feet of the single pump harness as the dual pump has thinner wires and splits off to the under the car pump also the connector to the fuel pump is different. The single pump is bigger. Also to install the big fuel pump is easy set it down and turn. Unlike the pain in the a$$ spring loaded dual pump.
      Very easy to do swap.

      I did this to my white corrado and saved alot of headaches.



      Modified by Pete O. Arguelles at 1:46 AM 10-21-2008


    19. 11-18-2008 08:01 AM #19
      alright guys my buddy got my two stage pump from TRE and looking at the Bentley it says for G60's NOT TO HAVE THE FLOAT FACING THE FRONT OF THE TANK. But I found out for the VR they have a pic of the float facing the front of the tank. I'm trying to help him out but which way should he go with?

      He has have the one piece OEM pump.




      Modified by running-on-vegetableoil at 5:02 AM 11-18-2008


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      90 corrado G60
      08-09-2012 10:42 AM #20
      Where did you get that diagram?

    21. Member sdezego's Avatar
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      08-09-2012 11:12 AM #21
      Bentley
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    22. Member Pete O. Arguelles's Avatar
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      08-09-2012 04:38 PM #22
      Quote Originally Posted by running-on-vegetableoil View Post
      alright guys my buddy got my two stage pump from TRE and looking at the Bentley it says for G60's NOT TO HAVE THE FLOAT FACING THE FRONT OF THE TANK. But I found out for the VR they have a pic of the float facing the front of the tank. I'm trying to help him out but which way should he go with?

      He has have the one piece OEM pump.




      Modified by running-on-vegetableoil at 5:02 AM 11-18-2008

      My tank has an arrow to line up with. I have a corrado with the MK2 dual pumps and found a late G60 tank and swapped out the entire gas tank pulled the 2 pumps off and now have the VR single pump setup. Very easy to do I also used the fuel lines and bracket and electrical connection for pump off of the late G60. Bracket holds the fuel filter where the second pump went.

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      08-10-2012 08:07 AM #23
      Hi guys i'm trying to find the rubber seal (item#2)and i dont seem to find it,any help would be great,some advice if yours is not in good condition replace since mine is messed up and the gas fumes come inside the car and i'm not able to take my kids to ride in my car as much as they like it,thanks guys,Roderick

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      08-12-2012 05:04 AM #24
      Does anyone have any info on installing a walbro 255lph intank. The high flow pump is much skinnier than factory... This shop rigged up the pump for me. They used thick o rings. But I noticed it starts running out of gas at a 1/4 tank and recently started running out of fuel in a hard turn. I checked the pump and the o rings they used are shot. I'd really like a more factory solution. I'm sick of worring about the damn thing.
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      08-12-2012 09:11 AM #25
      heres a nice replacement, then you can also remove the pressurepump on the underside

      http://aeromotiveinc.com/products-pa...-inlet-inline/


      altho, i don't know how cleaver this is as the fueltank don't have any baffles in it. making it possibly suck air and lean out when the tank are almost empty

      i'm thinking of going this route. makes more sense to just have one pump instead of two where one of them are located on a horrible place (under the car)

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