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May 17, 2020 16:09:29 GMT
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I need to replace the in-tank fuel pump on the Mrs mk2 MG ZR petrol as its really noisy, to be fair it has been noisy for the last 6 years but its getting worse, so while she is working from home I have a chance to do the job I have a new pump, new strap hooks, I am cutting old ones off to make life easier Tank has to come out, no probs there I am looking for info on the pump assembly, the pump itself is inside a white plastic tube thing, I cant find any info on how to remove that part to access the pump, so just wondered if anyone on this forum might know. fuel pump assembly as removed from the car will look like this: [pic from an ebay seller is a used complete assembly]  my fuel pump comes on its own, like this below, as do all fuel pumps for this model of car unless bought used like the above which has sender etc with it.  so the white casing in the top pic, will need to come off/apart as the pump will be inside it, but how? I am just trying to prep myself with info in advance, of course all will become clear when I get the pump out the tank but I just find it odd that the manual, or internet guidings don't show it. thanks  |
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Rich
Club Retro Rides Member
Posts: 6,340 
Club RR Member Number: 160
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May 17, 2020 23:19:10 GMT
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It’ll clip together which will probably become glaringly obvious once removed from the car  I’ve not done an MG Rover one that I recall, not trying to teach granny to suck eggs but are you Sure there is no access panel to the fuel pump assembly? |
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deffo no access under rear seat
all will be revealed in a couple of hours I think
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May 18, 2020 16:59:27 GMT
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Right, so on with the job today, I got the job done on my own in around 6 hours, stopping for tea and lunch. This video I took during the process, just shows the car with the noisy fuel pump, me draining the fuel out via the return [very slow output, and full of air bubbles, I drained the tank of another ZR the same way a couple of years ago and flow was high, and no air], it also shows the car running, before and after the change, and the old pump bench tested at the end. re-uploaded in better quality tank out  top of fuel pump fittings, pipes all ok  fuel pump is in this tube, the repair manual says it cant be opened  there is the fuel pump, the top of the tube clips open  fuel pump  on the top of the fuel pump is a small O ring and a plastic sleeve that needs swapping over, I also used the gauze off the bottom as the one supplied was slightly different  these are just the securing hooks I got from ebay, I trimmed them to fit better.  right, truth is, I would have rather have changed the head gasket, changing the head gasket is really easy!, it was a swine to drop the tank, a bigger swine changing the fuel pump in the sleeve, and a total swine getting the filler neck and breather back on underneath. But it all went together, filled with fuel, and she started up and has been driven, no leaks and super quiet. Got a new fuel filter to put on tomorrow, I forgot to do it before I took the car out of the yard. |
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May 18, 2020 18:20:17 GMT
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Just about to do this myself so this is very timely although my pump seems to have failed completely. I do like a facelift ZR on hairpins, they are such good looking little cars.
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May 18, 2020 20:29:42 GMT
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ChasR
RR Helper
motivation
Posts: 10,309
Club RR Member Number: 170
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It’ll clip together which will probably become glaringly obvious once removed from the car I’ve not done an MG Rover one that I recall, not trying to teach granny to suck eggs but are you Sure there is no access panel to the fuel pump assembly? A few cars don't  / Mondeo Mk3s have one which IIRC is offset, so the tank in any case has to be partially dropped, at least on a 2001 petrol car. |
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May 19, 2020 12:22:28 GMT
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I did contemplate cutting a hole in the seat floor to access the pump, but obviously I would have risked cutting the tank at the same time! also, should there have a been an access hole the way the metal fuel pipes are on the top of the assembly it would not have come out anyway.
fuel filter done today, there were no leaks overnight, so all good!
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May 27, 2020 14:31:37 GMT
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I have to do the very same thing on my 2005 ZR. I’ve been trying to source a new fuel pump with no success. Would you be kind enough to tell me where you got yours from. Or anywhere else that sell them for that matter. Cheers.
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May 27, 2020 17:18:04 GMT
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I got mine from ebay, £20. item number 232565161811
that will fit all the petrol ones as far as I know
plan ahead by getting new tank strap hooks - ebay item 182609018670 (8mm thread, length 120mm) I needed to use a M10 nut as a spacer on each one.
I had to replace a large jubilee clip for the main filler tube where it goes to the tank as it was corroded and I had to cut it off, don't know what the size was as I already had a good used one similar size ready to use.
I bought some fuel pipe quick release pliers, to help undo the fuel pipes just in front of the tank, you can get by without them, on refit make sure you pull the plastic centre clips fully out before pushing fuel pipes back together.
When it comes to getting the new pump into the tube, its fiddly! I used the original filter gauze, new one supplied with pump was wrong shape, also had to extend the fuel pump wires by about 8cm as it was impossible to fit them otherwise, or rather it felt impossible, I just made it easier by extending them.
anything else you want to know just ask
if you have access to another car while doing the job, its ideal if you need any bits or bobs, but planning ahead will help a lot.
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I’ve not done an MG Rover one that I recall, not trying to teach granny to suck eggs but are you Sure there is no access panel to the fuel pump assembly?
/