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Lift pump 1.8 16v

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Hi guys, I have a very loud fuel pump and for what I have read it would make sense to purchase a in tank pump first off and filter. My question is what are my options I can't seem to see a full unit, is it possible for a noob to dismantle whole sender unit and replace pump, or is there a complete alternative I can replace with.

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Hi .

 

The unit (housing for fuel pump swirl pot) is obsolete part number 535201043. These are prone to crack and leak with age.

 

Its an area that is worth tackling as a whole for the long run if that is your plans for the car.

 

The area basically has a Bosch fuel pump + Bosch accumulator + metal fuel pipes + Fuel filter and heat shield + housing bracket + metal fuel lines.

 

You cannot buy the bracket or swirl pot housing its obsolete also the bracket that holds it to the car. You can just change parts in it ie fuel pump, accumulator etc.

 

I believe this is the fuel pump you'll require. Not worth going for a cheap alternative.

 

https://www.ebay.co.uk/itm/New-Genuine-BOSCH-Fuel-Pump-0-580-254-033-Top-German-Quality/193238953604?epid=248858159&hash=item2cfdf06e84:g:nd8AAOSw8yxcrSdu

 

Bosch accumulator again do not cheap out on substandard alternative.

 

https://www.ebay.co.uk/itm/VW-GOLF-MK1-GTI-MK2-16v-FUEL-PRESSURE-ACCUMULATOR-REGLATOR-A1426/223625536105?epid=1443050346&hash=item34111ee269:g:sr4AAOSwvA5dTA02

 

Here is a diagram of the area.

 

http://www.oemepc.com/vw/part_single/catalog/vw/markt/RDW/modell/COR/year/1993/drive_standart/76/hg_ug/201/subcategory/69000/part_id/3687212/lang/e#sec_37

 

Its an area that a lot of people will dismantle and get the brackets powder coated and new fuel lines as it is open to erosion been under the floor pan of the car.

 

I've seen this for a MK2 golf 16V and it comes complete with the pump,accumulator etc. I don't think it will fit the Corrado though because it has different swirl pot housing for the pump, all the rest is the same though, mint bit of kit with an alloy swirl pot.

 

https://www.classic-vw.co.uk/mk2-golf-fuel-pump-housing-kit-191201043-21354-p.asp

 

This is an example of a Corrado one in Germany for sale which is typical can see cracks in the unit and the eroded parts.

 

https://www.ebay.co.uk/itm/VW-Corrado-16v-Petrol-Pump-Catch-Tank-535201043/283656283824?_trksid=p2485497.m4902.l9144

 

Thankfully in the VR6 the pump is located in the tank however can be a bit of a smelly job and it has a tendency to have rubber parts dissolve in the fuel tank.

Edited by Keyo

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I was actually hoping to replace the I tank pump then a fuel filter and hope that the noise would die down. I just wondered if it was possible that a whole in tank alternative pump and sender could be purchased rather than trying to strip apart the whole unit to change the pump.

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Possibly but the K Jet injection system is very complicated and troublesome and to modify could spell trouble. I would just change the pump and fuel filter + fuel line and if still not good the accumulator. Why VW never made a splash shield to cover the whole unit I never know, maybe it would of been to low and would of scrapped.

Edited by Keyo

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I did see the alloy swirl pot on vw classic Web page before, never even considered it wouldn't fit, also bit out of my price range at the moment. Also further down the line of other jobs. Was hoping to change lift pump first off as I said then maybe I won't be as worried if it quietens down. Had the car over two weeks last owner had for 20 years, so far I have removed interior for a water leak that soaked the carpets from heater gasket under scuttle. Now considering doing heater matrix as most of the interior is already removed plus I have one spot of welding that looks like a jack through the floor, which must be a double skin area as there's no hole inside the car.

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Good luck with that mate- sure just change the pump but I would take the whole unit off and give it a good clean and inspection, might as well get the bracket powder coated as well.

 

Might as well do your heater box blend doors as well mate if you are doing the matrix. Im seeing alot of people doing these recently and going to a lot of hassle but not taking enough time to find a good product to refoam the flaps and using all sorts of material from furniture pads and hobby craft foam well this stuff is not designed for a heater box how long will it last ?

 

Well I would use this stuff personally specific to blend door.

 

 

 

https://www.ebay.co.uk/itm/Neoprene-EPDM-Blend-Foam-Adhesive-Backed-Squares-Strips-in-all-sizes/401911257667

Edited by Keyo

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Thanks for the help I was actually just looking at what foam was needed for heater flaps. Perfect timing what thickness and size is best. I have read there is three bolts on bulkhead two at matrix and one behind expansion tank. I can only find one at matrix and one at expansion tank.

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I also will look at under car fuel pump and hope the casing isn't too bad although after nearly 30 years old I can but hope.the pump in the petrol tank itself will be first, the fuel filter at the swirl pot is actually new looking.

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Ummm good question probably around 1 or 2mm - don't want it to heavy or could make bland door stress out the cables.

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For what i have read the under car pump gets louder if lift pump in fuel tank is struggling and then the under car pump gets louder as it strains to send fuel. Also read do both pumps at same time. I was actually asking how difficult it is to disassemble the fuel sender unit to replace the lift pump on sender.

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Here is a diagram of the a KR fuel tank I cant see no internal pump.

 

http://www.oemepc.com/vw/part_single/catalog/vw/markt/RDW/modell/COR/year/1993/drive_standart/76/hg_ug/201/subcategory/65000/part_id/3687086/lang/e#sec_25

 

I'm not to clued up on the Corrado KR as there was a 2.0 16V version as well that might have a different fueling system with a lift pump and sender in the tank. There are chassis changes to the pump on the diagram with different part numbers.

 

Think you'll find only have one which will most lightly be under the car or one in the tank.

 

Be one of these dependent on your chassis number (age of car).

 

http://www.oemepc.com/vw/part_single/catalog/vw/markt/RDW/modell/COR/year/1993/drive_standart/76/hg_ug/906/subcategory/206000/part_id/3706612/lang/e

 

 

http://www.oemepc.com/vw/part_single/catalog/vw/markt/RDW/modell/COR/year/1993/drive_standart/76/hg_ug/919/subcategory/213000/part_id/3689944/lang/e

 

http://www.oemepc.com/vw/part_single/catalog/vw/markt/RDW/modell/COR/year/1993/drive_standart/76/hg_ug/919/subcategory/213000/part_id/3689944/lang/e

Edited by Keyo

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Buy what your happy with mate but I have heard only use Bosch for KR fueling as all the rest are unreliable.

 

As mentioned above you need to determine which pump you have first, have you seen a pump under the car? Also check your chassis number.

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I wasn't looking to purchase that particular pump, more than likely a perburg or bosch pump. As I don't want be doing same job again and again buy cheap buy twice etc.

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Are the lift pumps not there just to provide some assist to the main under body unit? The noise is probably due to the main pump having to do a lot more work under strain once the lift pump has failed.

 

I think they are pretty standard across the VW range of that era - my 1990 8v GTI had one aand when I replaced it at the time there lots of options, but a good brand is obviously advisable, if more expensive. Taking the body out of the in tank unit and back in is pretty easy.

 

Another option is that a lot of uprated K-Jet cars simply fit a more powerful in tank pump and do away with the dual pump arrangement altogether.

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I think I would prefer the option of a more powerful in tank pump then doing away with an obselete swirl pot that will probably break the first time I touch it. But that's in the future.

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I think I would prefer the option of a more powerful in tank pump then doing away with an obselete swirl pot that will probably break the first time I touch it. But that's in the future.

 

Might be worth going on a 16V golf forum to see if anyone has done the mod.

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The G60 is Digifant and the 16V is based on a variation of K-Jetronic injection, so I doubt very much they would be the same. In fact, Digifant on my old 8v MkII didn't have a fuel accumulator at all. as the injectors are pulsed directly, whereas K-Jet is usually mechanical fuel injection.

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Posted (edited)

Part number 15 on diagram .

 

Accumulator 431133441C for KR (16V) Vag or Bosch part number 0438170027

 

Diagram

 

http://www.oemepc.com/vw/part_single/catalog/vw/markt/RDW/modell/COR/year/1993/drive_standart/76/hg_ug/201/subcategory/69000/part_id/3687212/lang/e#sec_37

 

Cheapest seller.

 

https://www.ebay.co.uk/itm/Bosch-Fuel-Injection-Accumulator-0438170027-GENUINE-5-YEAR-WARRANTY/163054302681?epid=1809487799&hash=item25f6cb35d9:g:-XgAAOSwo9Va~08u

 

Proof of correct part

 

https://www.ebay.co.uk/itm/VW-GOLF-JETTA-MK1-MK2-CORRADO-GTI-16V-Fuel-Pressure-Accumulator-K-Jetronic/123757014448?hash=item1cd07e2db0:g:HDUAAOSwxZxcDDYi

 

The drop down field is manually done by the seller so I would just go by the parts diagram as some cars are missed off the list.

Edited by Keyo

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The part no. On the link I posted matches the part numbers exactly like the ones you have posted even with shipping this would be the cheapest accumulator I could find. But if its no good then obviously it's a pia and time waste. Cheapest accumulator uk/Europe is from vw classic

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