Fuel Filter

Technical questions and answers about the Mazda Bongo

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JaK
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Fuel Filter

Post by JaK » Wed Jan 07, 2015 6:49 pm

Hi folks,
Please advise: I have had my bongo friendee 2.5 petrol (with LPG conversion) for just over a year. I had a service with the MOT.
All is well, except garage saying it is having trouble getting a fuel filter and this part of the service is still owed me.
Is the fuel filter (V6), costing £33.50 for members, which is shown on the parts list the one I need?
If so, I will buy it and take it to the garage.

Thanks for your help.
JaK.
Ian
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Re: Fuel Filter

Post by Ian » Wed Jan 07, 2015 7:44 pm

Yes, that's the one.
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Jim the Box
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Re: Fuel Filter

Post by Jim the Box » Thu Jan 08, 2015 12:16 am

Get one from Ian and get it fitted, however once fitted you are running on LPG most of the time, so it will not need to be changed as often as running on petrol only, but petrol can get a bit waxed if not used for a while, so at regular intervals I tend to run on petrol for say 20 miles and stick a tenners worth in now and again. I never have more than quarter of a tank of petrol unless I know I am travelling somewhere I can't get LPG.
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JaK
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Re: Fuel Filter

Post by JaK » Thu Jan 08, 2015 1:25 pm

Thanks for info re fuel filter
Tips re running on petrol now and again very helpful.

Thanks again

JaK
teenmal
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Re: Fuel Filter

Post by teenmal » Thu Jan 08, 2015 3:46 pm

JaK wrote:Hi folks,
Please advise: I have had my bongo friendee 2.5 petrol (with LPG conversion) for just over a year. I had a service with the MOT.
All is well, except garage saying it is having trouble getting a fuel filter and this part of the service is still owed me.
Is the fuel filter (V6), costing £33.50 for members, which is shown on the parts list the one I need?
If so, I will buy it and take it to the garage.

Thanks for your help.
JaK.

For future reference you could give the garage the part number J50313480, this is a fairly common unit.
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Simon Jones
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Re: Fuel Filter

Post by Simon Jones » Thu Jan 08, 2015 9:58 pm

When you start from cold it will be running on petrol and then it switches over the gas. At that point the normal injectors are switched off but the in-tank pump continues to run so petrol is being pumped thru the filter and back to the tank via the return pipe. This combined with the fact that you're not putting fresh petrol in very often means the fuel can go a bit stale so it may be worth chucking some fuel additives like Redex to help keep the system clean.
Jim the Box
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Re: Fuel Filter

Post by Jim the Box » Fri Jan 09, 2015 12:17 am

Cheers for that Simon I was not aware the pump kept running through the filter back to the tank, now you have said it, it makes absolute sense, thus filter should be changed as per recommended intervals.
"Today's rain is tomorrow's Whisky"
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Simon Jones
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Re: Fuel Filter

Post by Simon Jones » Fri Jan 09, 2015 12:57 am

Yep, the pump is probably working harder than normal as it's sending all the fuel to the injectors and back again. That's also a reason to keep the tank at a reasonable level as the petrol absorbs the heat from the pump to keep it cooled. Vehicles with in-tank pumps tend to suffer more failures if they are always driven round with a nearly empty tank. I was chatting to an owner of a Focus recently who's car actually blows the fuel pump fuse when the tank runs low. Time for a new pump I think.
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