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  1. #1
    Join Date
    Feb 2005
    Location
    Reading, Berks
    Posts
    342

    Fuel Pump and fuel pump relay replacements?

    Hi all,

    First of a few posts l think.

    I need to get a new electric pump(RV8 with edelbrock) as there was a leak from an outlet hose and when l tried to tighten it it snapped off!

    1st question,
    Is this type suitable, I seem to remember spending a lot more when l bought the first one?
    https://www.ebay.co.uk/itm/Bearmach-...IAAOSwLqFV9cFV



    2nd question,
    In the past l had to bridge 2 teminals in the relay for the pump to work, I assume that means a new relay needed?

    I found these
    https://www.ebay.co.uk/itm/Fuel-Inje...e/130864111485

    and these original purple ones
    https://www.ebay.co.uk/itm/Genuine-F...8AAOSw4c5b2HNs

    Is the first one suitable as its a lot cheaper?

    Hopefully this time l can manage to complete it!!

    Thanks in advance

    Steve
    Cheers

    Steve
    When will it ever be finished??!
    Hopefully better luck 2nd time round!!!!!!
    Or now the 4th time round......!!

  2. #2
    Join Date
    May 2004
    Location
    Finchampstead, Berkshire, UK.
    Age
    54
    Posts
    3,584
    For the relay any one of about 30A rating will do (sub £5).

    For the fuel pump, that one might (should) work, looks like a cheap version of a Facet Red Top (£70ish) which I used to run when I had an RV8 fitted.

    Rgds

    Jim
    GD Mk3 Jag based
    Supercharged LS1
    GD J1M

  3. #3
    Join Date
    Feb 2005
    Location
    Reading, Berks
    Posts
    342
    Thanks for that Jim
    I'm not that up on relays, I have some lying around in the garage so do you mean if they have that rating and pin configuration any relay will be compatible?

  4. #4
    Join Date
    Feb 2005
    Location
    Reading, Berks
    Posts
    342
    Re the fuel pump, it's a very long time ago but I think l spent at least that on this one from Real Steel.
    It's a bit annoying as the car hasn't even made it on the road and the pump has to be replaced.
    On a sidenote, my fuel pipes were new, they say suitable for unleaded. Will they be ok for Iva?
    I've seen comments about needing SAE J30 R6 pipe

  5. #5
    Join Date
    Oct 2006
    Location
    Toton, Nottinghamshire
    Age
    46
    Posts
    847
    Quote Originally Posted by MrFawlty View Post
    Thanks for that Jim
    I'm not that up on relays, I have some lying around in the garage so do you mean if they have that rating and pin configuration any relay will be compatible?
    In answer to your question, Yes. Don't use and indicator relay - although I doubt they'd have the same pinout. There is usually a schematic printed on the case of the relay showing the internal components with the associated pin numbers.

    Is your fuel pump not repairable? If it's just a hose tail that has snapped then you should be able to find a replacement.

    Russ.
    Joint Area Rep - East Midlands Region
    1984 DAX Cobra
    Rover 3.5 V8 with Holley carburetor.

  6. #6
    Join Date
    Nov 2013
    Location
    My Garage
    Posts
    949
    MKIII Pilgrim Sumo. 3.5 Litre Rover V8 Towing an Eriba Puck Caravan



  7. #7
    Join Date
    Nov 2012
    Location
    South of Winchester
    Posts
    171
    For what it’s worth..........
    I used a Facet pump and put in a tachometric relay when I put my Mk2 together - runs the pump for a couple of secs at ignition on, runs the pump whilst the engine is running and then stops the pump when the engine stops even with ignition still on (i.e. if you’ve crashed it).

  8. #8
    Join Date
    Mar 2006
    Location
    Oxfordshire
    Age
    68
    Posts
    1,633
    Hi Steve.

    I have a new, unused Facet 480530K fuel pump kit (the same as this one) - I was about to put it up on eBay for around £70. It's the red top Gold-Flo 476459E pump rated at 35 US gals/hr, plus the unions, mounting rubbers and a spare filter.

    If you're interested, I could bring it along to the next Thames Valley meet - Sunday 20th October at The Swan in Three Mile Cross.
    Alan

    CRC Thames Valley Regional Rep
    UK Rep for European Cobra Club (eurocobra.boards.net)
    Dax 427 DeDion - Huddart SBC 383

  9. #9
    Join Date
    Feb 2005
    Location
    Reading, Berks
    Posts
    342
    Russ,
    I'll check but I didn't notice any part that could be replaced. It looks like part of the top moulding that snapped.

    Ken,
    Thanks for the links

    Phil,
    That would be just my luck to crash on the first outing after 15yrs😩

    Alan,
    Cheers that might be an idea, presumably that's much better quality than the one I'm looking at. Is that what most people fit nowadays?
    I haven't been to many meets and not for years either.
    Is there a good turn out, will many people be in Cobras
    What time ?

  10. #10
    Join Date
    Feb 2011
    Location
    Northampton
    Age
    41
    Posts
    3,875
    Quote Originally Posted by PhilG66 View Post
    For what it’s worth..........
    I used a Facet pump and put in a tachometric relay when I put my Mk2 together - runs the pump for a couple of secs at ignition on, runs the pump whilst the engine is running and then stops the pump when the engine stops even with ignition still on (i.e. if you’ve crashed it).
    Interesting - I'd never heard of a tachometric relay .. I am tempted to investigate that to retro fit into my wiring harness now! They appear to be readily available as Pug 205 items on eBay..
    My DeDion build diary..
    Hon Sec of the Digidash branch of the Unpopular Kit Car Design club

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