Fuel tank

10

Asked by Oct 30, 2007 at 01:25 PM about the 1986 Volkswagen Cabriolet

Question type: Maintenance & Repair

I converted my 86 cabriolet to diesel and am wondering how the fuel lines are on the tank.  I am not using a electric fuel pump and my gas gage doesn't work.  I don't see where the supply line comes out of the tank.  Do I have to use the in tank pump?  Car was running fine on diesel than it started hesitating and it seems like it out of fuel but I can only get 8 gallons in the tank.

4 Answers

43,935

Probably the best thing to do would be try to find a used diesel pump. The in-tank electric pump is probably not suitable for diesel, as diesel systems usually use a transfer pump to build pressure, and an injector pump to deliver the fuel to the cyinders. Your tank problem is unusual...Perhaps there was residual gas in the tank that mixed with the diesel and messed up your injector pump.

10

The only problem with that theory is that I drove the car over 2000 miles before it started to act up and then that isn't even consistant. When I took out the intank fuel pump, one of the hoses was rotted away. Did it just lay in the tank or was it hooked to something on the other end? What is the other line for going into the tank(there is two of them)? Thanks for your help.

1 of 1 people found this helpful.

suply and return do as littlehornsays he is good,one question,why did you not change to a desil tank.

10

I converted a 1988 cabriolet to a 1.6L diesel and had same problem. I removed intank fuel pump and replaced it with a universal inline fuel pump before the filter. I purchase the pump from NAPA for $38.00. So now the inline pump fills the filter and the injection pump pulls fuel to the injectors. The car runs great with good power. Your injection pump maybe showing signs of wear and can not keep filter primed.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • Fuel tank 4 answers

    I converted my 86 cabriolet to diesel and am wondering how the fuel lines are on the tank. I am not using a electric fuel pump and my gas gage doesn't work. I don't see where the supply line comes o...

    1986 Volkswagen Cabriolet

    -

    Maintenance & Repair

  • Replacing 1989 VW Cabriolet In Tank Fuel Pump and Fuel Guage Sending Unit 1 answer

    When replacing these, do you typically have to buy the 2 parts separate or can you get an OEM replacement of the complete assembly? Given where these parts go (in tank), I am hesitant about doing t...

    1989 Volkswagen Cabriolet Boutique

    -

    Maintenance & Repair

  • fuel pump 4 answers

    Replace 1987 Cabrio fuel pump

    1987 Volkswagen Cabriolet

    -

    Maintenance & Repair

  • Fuel pump 1 answer

    fuel pump replacement

    1987 Volkswagen Cabriolet

    -

    Maintenance & Repair

  • Bleeding the fuel line? 7 answers

    How do i bleed the fuel line??? do i take the fuel filter off an try to turn it over??? or take the out line off the filter an then try to turn it over???

    1986 Volkswagen Cabriolet

    -

    Maintenance & Repair

Cabriolet

Looking for a Used Cabriolet in your area?

CarGurus has 12 nationwide Cabriolet listings and the tools to find you a great deal.

ZIP:

Search Volkswagen Cabriolet Questions

Volkswagen Cabriolet Experts

#1 Reelin68
Reelin68
Reputation 260
#2 Scott Sr.
Scott Sr.
Reputation 230
#3 tenspeed
tenspeed
Reputation 220
View All

Related Models For Sale

Used Volkswagen Golf
67 Great Deals out of 4,842 listings starting at $1,950
Used Volkswagen GTI
95 Great Deals out of 8,343 listings starting at $2,400
Used Ford Mustang
683 Great Deals out of 44,709 listings starting at $1,500
Used Volkswagen Jetta
563 Great Deals out of 44,225 listings starting at $800
Used Volkswagen Passat
345 Great Deals out of 25,013 listings starting at $999
Used BMW 3 Series
1,017 Great Deals out of 31,439 listings starting at $1,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.