Any good tips for replacing the fuel pump?

Any good tips for replacing the fuel pump?

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Discussion

black_potato

Original Poster:

282 posts

238 months

Tuesday 27th February 2018
quotequote all
The fuel pump is a bit noisy and I plan on doing a lot of miles this year so I think I will just replace it...

I don't mind spending a bit to do a job properly but I don't want to make anything more complicated than it needs to be...

So the current plan is to buy a OE Bosch unit from Racetech or TVR parts
https://www.racetechdirect.co.uk/car-parts/cooling...
I will also get some proper fuel line clamps as they are a better solution that simple jubilee clips in my opinion.
I would also like to replace the short fuel hose from the bridge fuel rail. Longer term I will probably do the rest but access isnt easy.
I will also get Jody at Python to test the electrics for any loss but to me they seem fine.
Fuel filter has recently been changed.

So.. does that seem sensible, anything else I should be doing at the same time, any tips to doing the job ?

I will of course disconnect the battery.
disconnect the wiring and check condition
Then I'm thinking I will clamp the hoses with G clamps - I assume if I dont it will just syphon ?
Fit the new bit of hose to the bridge rail - does anybody know the size ?
Fit new clips
insert pump
open clamp to allow fuel to drive air out of pump
quickly connect to engine side feed
undo other clamp
do up hoses
reconnect electrics
start car and bob's your auntie

make sense.. anything stupid there ?

black_potato

Original Poster:

282 posts

238 months

Tuesday 27th February 2018
quotequote all
I'm guessing the low pressure side of the pump is this 1/2 inch hose TVR H0285

SMB

1,513 posts

265 months

Tuesday 27th February 2018
quotequote all
black_potato said:
I'm guessing the low pressure side of the pump is this 1/2 inch hose TVR H0285
sounds about right, but to get a good fitting on the tank end you need to remove the tank straps and move the tank out of the way. So you may aswell drain it.

black_potato

Original Poster:

282 posts

238 months

Tuesday 27th February 2018
quotequote all
I think for now I will just go back to the fuel filter. Longerterm I will do all the fuel lines.

latham91

101 posts

102 months

Tuesday 27th February 2018
quotequote all
I bought this one, genuine bosche for my 400 Chim recently and works fine:

https://www.ebay.co.uk/itm/0580464070-BOSCH-ELECTR...

Has electrical connections shrouded with rubber boots which is an improvement over the original set up.

phazed

21,844 posts

203 months

Tuesday 27th February 2018
quotequote all
latham91 said:
I bought this one, genuine bosche for my 400 Chim recently and works fine:

https://www.ebay.co.uk/itm/0580464070-BOSCH-ELECTR...

Has electrical connections shrouded with rubber boots which is an improvement over the original set up.
Has that pump the exact spec of the original?

latham91

101 posts

102 months

Tuesday 27th February 2018
quotequote all
Pistonheads Griffith Parts list:

https://www.pistonheads.com/gassing/topic.asp?t=14...

States:

Fuel Pump

Originally a Bosch 0580 464 055 with a Lucas sticker: Lucas 4FP 73351A with spade type connectors 130 Litres/hour at 3 Bar
Bosch have replaced this with type 0580 464 070 the only difference being metric screw terminals

My eBay link is for the 0580 464 070

Seems to work fine in mine.... so far :-)

gavgavgav

1,551 posts

228 months

Wednesday 28th February 2018
quotequote all
Having done this recently, your plan to clamp probably won't work as you are replacing the large bore hose from the pump to the 'U' pipe, which does not have enough room to clamp between that and the tank. I had to drain the tank.

Note that I found the condition of the hose that passes through the body from the tank to the 'U' pipe to be in worse condition than the exposed bit from the 'U' pipe to the pump. As the tank was empty, it's easy to remove and just replace the lot. i ended up only finding a supply of 0.5m of the larger bore pipe anyway so I had loads. When the tank is out, you can also clean up the earthing point for the fuel pump that is hidden behind it, and check the condition of the 2 other fuel lines for the tank. I ended up replacing the return pipe while it was out also. While it was apart and drained I replaced all the lines to the hard copper lines beside the fuel filter.

The jubilee clips were rusted solid, its good as you say to replace for proper clips.

I also painted up the fuel bracket to give it a longer life, it's poorly protected.

I also wrapped the wires right up to the pump and re-secured on the other side of the chassis rail, the set up on mine was too close the drive shaft for piece of mind.


Hedgehopper

1,537 posts

243 months

Wednesday 28th February 2018
quotequote all
Very helpful article here.....................

http://www.bertram-hill.com/replacing-the-fuel-lin...

gavgavgav

1,551 posts

228 months

Wednesday 28th February 2018
quotequote all
Hedgehopper said:
Very helpful article here.....................

http://www.bertram-hill.com/replacing-the-fuel-lin...
thats a good article, it reminded me of the other point I did also cover whist the tank was out as I did not know why the fuel pump died;

"Fuel is fed initially through a simple plastic filter within the tank base,"

This is not a widely discussed part - In my case the filter was not looking too good, finding a replacement took ages, its a Jag XJ V12 part & was cheaper to have shipped from the states!.

UKAuto

533 posts

276 months

Wednesday 28th February 2018
quotequote all
Drain the fuel tank by driving - no more pleasant means than that. Just carry a litre or two of fuel in a can in the boot, that way if you get carried away you can make your way back home!!!

Nothing as unpleasant as fuel running down your sleeve as you fight with fittings, best to get rid of that pesky stuff.

Aussie John

1,014 posts

230 months

Thursday 1st March 2018
quotequote all
My pump was getting noisy and found the 12mm hose from the tank had started to break up inside and small pieces were in the pump. After pouring petrol in and out of the pump very small bits of hose came out. The pump now runs quietly. [ I do carry a spare pump in the boot]

phazed

21,844 posts

203 months

Friday 2nd March 2018
quotequote all
Aussie John]My pump was getting noisy and found the 12mm hose from the tank had started to break up inside and small pieces were in the pump. After pouring petrol in and out of the pump very small bits of hose came out. The pump now runs quietly. [ I do carry a spare pump in the boot said:
Interesting stuff. I assume you replaced the hose?

Mine is noisy occasionally so will check this .

black_potato

Original Poster:

282 posts

238 months

Friday 2nd March 2018
quotequote all
UKAuto said:
Drain the fuel tank by driving - no more pleasant means than that. Just carry a litre or two of fuel in a can in the boot, that way if you get carried away you can make your way back home!!!

Nothing as unpleasant as fuel running down your sleeve as you fight with fittings, best to get rid of that pesky stuff.
I've never been keen on running tanks dry as you dredge the last of the crap out of the tank and risk blocking injectors etc if the filters don't catch it all.

I'll just risk setting myself on fire I guess.

Aussie John

1,014 posts

230 months

Saturday 3rd March 2018
quotequote all
Hi Phazed, I changed that without removing the tank but had to enlarge access in the fibreglass to remove it. be careful to position the copper bit near the wishbone, mine was just touching with suspension movement where I had not quite centered it. cheers, John.

phazed

21,844 posts

203 months

Saturday 3rd March 2018
quotequote all
Aussie John said:
Hi Phazed, I changed that without removing the tank but had to enlarge access in the fibreglass to remove it. be careful to position the copper bit near the wishbone, mine was just touching with suspension movement where I had not quite centered it. cheers, John.
Good advice, thanks.

I am not touching mine till the weather improves. It was bad enough renewing a drive belt on my Mercedes yesterday in a closed garage with fan heaters on!

Aussie John

1,014 posts

230 months

Saturday 3rd March 2018
quotequote all
I only go in the garage to check my mouse traps; not keen on cold!!

megaphone

10,694 posts

250 months

Wednesday 14th August 2019
quotequote all
latham91 said:
Pistonheads Griffith Parts list:

https://www.pistonheads.com/gassing/topic.asp?t=14...

States:

Fuel Pump

Originally a Bosch 0580 464 055 with a Lucas sticker: Lucas 4FP 73351A with spade type connectors 130 Litres/hour at 3 Bar
Bosch have replaced this with type 0580 464 070 the only difference being metric screw terminals

My eBay link is for the 0580 464 070

Seems to work fine in mine.... so far :-)
How are you getting on with this pump, is it still ok?

rev-erend

21,404 posts

283 months

Wednesday 14th August 2019
quotequote all
Top tip.

Don't smoke.smokin


Sardonicus

18,928 posts

220 months

Wednesday 14th August 2019
quotequote all
Beat me to it .... Damn rolleyes that FP inlet is 12mm not 13mm and yes it matters wink like a broken record but any flexible fuel hoses on these cars branded R9 Ethanol spec stuff ...Cohline.....ContiTech.....Codan .....Goodyear etc



Edited by Sardonicus on Wednesday 14th August 16:56