205 Fuel Pump Choices

[Para 82 2 Cars]

Is this correct pump for my 1.9 GTI 1991 ??? Sorry for Polish website but all the numbers are there

 

 

http://allegro.pl/pompa-paliwa-fiat-citroen-peugeot-0580314152-lodz-i2951011429.html

[Rjuhar 52]

In service box it says it's for TU engine.

[Will Eastman 6]

I have just fitted a 255 fuel pump and am having some problems. When starting the car it turns over quite a few times before catching. Once started though it runs fine n doesnt skip a beat. It wasnt doing this before fitting the pump, any ideas?

[mastakilla 1]

mine works fine so far, never more than half a second to start from cold. I have replaced the regulator too, but I don't think it is the cause of your problem.

Edited February 5, 2013 by mastakilla

[Will Eastman 6]

I don't see how it could be anything else. It's very confusing! The car was starting fine before the pump was fitted. Do you think the regulator could be struggling with the extra time pressure? Thanks

[Will Eastman 6]

I don't see how it could be anything else. It's very confusing! The car was starting fine before the pump was fitted. Do you think the regulator could be struggling with the extra time pressure? Thanks

[mastakilla 1]

From my limited knowledge, I'd say that your symptoms can be because of a faulty check valve, which is located in the pump itself.

But to my suprise, it seems that the 255 LP has the check valve, while the 255 HP (which I have), does not...

[welshpug 1,621]

does the system prime ok?

[Will Eastman 6]

nope, well I thought the mi16 only primes when cranking so cant exactly hear. What is this check valve thing. Its odd when it doesnt start it just keeps cranking with nothing (as if its getting no fuel at all) but then once it does start it runs perfectly. Its almost as if the pump failing to get going?

[Will Eastman 6]

Oh and mines a walbro 255 lph

[Will Eastman 6]

Been reading about online and seems i must have a pump without a check valve, so im not maintaining any pressure in the fuel line. Im going to add an inline non return valve ontop of the tank and add a fuel pump priming button too. Thanks for the help guys.

[welshpug 1,621]

I have just received one today for my ph2. Looks like a little wiring to work out on top of the pump, but you can take all the components from the Bosch one and fits straight on the walbro. I got a walbro gss342, advertised for mr2 but they all seemed the same so I got this one, ill be fitting it in a bit...

 

 

that'll be this one.

 

http://www.glencoeltd.co.uk/in-tank-fuel-injection-pump-255lph-pump-only-851/#

 

I don't recall what a ph2 pump unit looks like, but it'll probably need some sleeving if its like any other walbro unit I've fitted, they're all much narrower than Bosch units.

 

as it happens, its the same unit I got from Alex at Torques for a decent amount less.

 

http://www.ebay.co.uk/itm/160822659270

 

works fine in my zx once I got around a few issues with the fitting, the thick foam sleeve would have been useful, fuel attacks anything rubber you use!

Edited March 29, 2015 by welshpug

[welshpug 1,621]

Thought I'd add some pictures of a pre 1990 fuel pump assembly and some dimensions, to help with choosing a replacement.

 

Complete unit, I think there may be a part missing off the base, had it kicking about for a long time, I know there are two clips missing, one from the rubber connector to the plastic housing inside on the feed, and one around the lower part of the body to clamp the pump in place.

 

closer detail.

 

 

the dooberry connecting the pump feed to the main cradle & outlet.

 

 

bare pump unit.

 

 

Dimensions

 

 

upper feed connection.

 

[welshpug 1,621]

looking back at the recommended replacement units, both will be a little bit of an arse to fit due to not having a central outlet, and being much shorter

[Tom Fenton 1,524]

Funnily enough I am on with this at the moment, trying to fit a Walbro 255 into the standard pump housing.

 

As Welshpug says its a bit of an arse due to the pump outlet being central on the Bosch but offset on the Walbro. I cannot see how some of the folk who say they have fitted this pump straight in have done it short of just attaching the outlet and leaving it to dangle in the cradle? The foam pump sleeves supplied would not be much use either as they are just a concentric sleeve.

 

As there seems to be nothing off the shelf I am on with making a solution.

 

Some pics to illustrate the difference to add to those above.

 

 

Walbro 255 GSS342 versus standard Bosch pump. As you can see diameter is a lot smaller, outlet is offset

 

 

Offered into the standard cradle, the outlet will fit to the top rubber adaptor, but that's it!

 

 

Eccentric adaptor sketched up, need to order some material and fire up the lathe to make it.

[SweetBadger 91]

They are a direct fit for the ph2 pumps and pump housings.

 

I just replaced mine and it was very straight forward - the later pumps are central to the pump housing and only slightly larger in diameter than the walbro 255

 

Here's a pic of it fitted to a ph2 pump housing:

 

[Tom Fenton 1,524]

Thats interesting. The beige colour fuel pump and housing must be a phase 2 one, whereas the black ones are all phase 1 / 1.5.

 

Typically I have 3 fuel pumps kicking about all phase 1/1.5!

[dcc 855]

what walbro pump is that you have fitted Alex? looks different to the 1 I have just ordered for a p2 pump

[welshpug 1,621]

I believe you can still get a bosch replacement unit, but at lots more £££

[SweetBadger 91]

It's the GSS342 - bought it off ebay: http://www.ebay.co.uk/itm/160514584060?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

The only tricky thing with it was that the pump outlet didn't line up with the pump housing outlet, so I had to bend the small connecting fuel pipe in an S shape (as per the original pipe).

 

I think the GSS340 might be a better option as it has a central pickup, so would allow you to rotate the pump round so the outlet was in line with the pump outlet: http://i00.i.aliimg.com/wsphoto/v0/855535490_1/Walbro-Fuel-Pump-255lph-GSS340-for-NISSAN-SUBARU-free-Shiping.jpg

 

The GSS340 and GSS342 are exactly the same pumps, only the inlet varies.

[dcc 855]

ah ok!

 

this is what I've just bought

 

http://www.ebay.co.uk/itm/160822661118

[Tom Fenton 1,524]

So here's how I sorted it-

 

http://forum.205gtidrivers.com/index.php?showtopic=163639&do=findComment&comment=1454480

[welshpug 1,621]

Nice work Tom, oh to have a lathe at home to play with!

 

It "looks" like its a lot shorter than the 10mm you said?

 

 

this is the one dimension I forgot to take note of earlier, so here it is.

 

20150402_200505_LLS by WELSHPUG, on Flickr

[Tom Fenton 1,524]

I wasn't happy with the height so have extended the high pressure line inside to drop the pump down some more. See the other thread. I was trying to avoid extra joints in the line but it was unavoidable in the end.

[Ballyafb 6]

I wasn't happy with the height so have extended the high pressure line inside to drop the pump down some more. See the other thread. I was trying to avoid extra joints in the line but it was unavoidable in the end.

 

Hi,

 

Where is the other thread you refer to?

 

I am fitting a shorter low pressure fuel pump in a phase 1.5 but was wondering if the electrical terminals are OK to be submerged. Trying to figure a solution so I have a low pressure in tank pump to feed the swirl pot (not like these boys cheating with using the standard pump).

 

Thanks

 

EDIT - Sorry I found the other thread. That eccentric spacer is exactly what I need. Still not happy that the electrical terminals of the pump are then submerged in fuel!

Edited April 11, 2015 by Ballyafb