Results 1 to 7 of 7

Thread: Fuel pump electrical connections

  1. 7th April 2022, 06:37 PM #1
    Shortshank
    Shortshank is offline Member Subscriber
    Join Date
    Sep 2018
    Location
    Hydes Creek, NSW
    Posts
    8
    Total Downloaded
    0

    Fuel pump electrical connections

    I’m replacing the electric fuel pump on my 1981 V8 Range Rover Classic with a new Facet. The old one had this electrical something but I don’t know what it is to replace it. Not sure if it actually functioned as the lead was already broken. Any ideas please? Many thanks, Chris
    Third pic doesn’t contribute to the debate but I like showing off my RRC!
    Attached Images Attached Images
    Reply With Quote Reply With Quote
  2. 7th April 2022, 08:58 PM #2
    biggin
    biggin is offline Wizard Subscriber
    Join Date
    Feb 2009
    Location
    Newborough, VIC
    Posts
    1,540
    Total Downloaded
    67.72 MB
    It’s a capacitor with a missing lug. 1.0uF (microfarad).
    2002 D2 4.6L V8 Auto SLS+2" ACE CDL Truetrac(F) Nanocom(V8 only)
    Reply With Quote Reply With Quote
  3. 8th April 2022, 07:07 AM #3
    Shortshank
    Shortshank is offline Member Subscriber
    Join Date
    Sep 2018
    Location
    Hydes Creek, NSW
    Posts
    8
    Total Downloaded
    0

    Fuel pump capacitor

    Thank you Biggin for your response and information.
    Does anyone know the part number for such a capacitor? Thanks.
    Reply With Quote Reply With Quote
  4. 8th April 2022, 07:35 AM #4
    PhilipA
    PhilipA is offline Swaggie Subscriber
    Join Date
    Jan 1970
    Location
    Avoca Beach
    Posts
    14,152
    Total Downloaded
    0
    It is to stop RF interference.
    I have never found one on my old RRCs so it may have been added by a radio ham or somesuch.
    A normal capacitor for a generator or alternator should work.
    Regards PhilipA
    Reply With Quote Reply With Quote
  5. 13th April 2022, 06:42 AM #5
    Mercguy's Avatar
    Mercguy
    Mercguy is offline Wizard Silver Subscriber
    Join Date
    Dec 2014
    Location
    FNQ
    Posts
    1,053
    Total Downloaded
    0
    Never known those horrible square facet things to emit excessive RF, perhaps the P.O. thought the god awful noise it made through normal operation was RF so they dumped a cap on it. Complete waste of time.
    RF suppression on the Alternator and if really bad on the +ve power feed to chassis of the radio.

    a 3mH inductor with a couple of 100µF caps is a far more effective suppressor than the tiny alternator caps.

    Screen Shot 2022-04-13 at 7.40.29 am.jpg

    Edit:

    Here you go. Wagner selling a 1000µF sealed suppressor.
    Screen Shot 2022-04-13 at 7.45.58 am.jpg
    Last edited by Mercguy; 13th April 2022 at 06:47 AM. Reason: added image
    Roads?.. Where we're going, we don't need roads...
    MY92 RRC 3.9 Ardennes Green
    MY93 RRC LSE 300tdi/R380/LT230 British Racing Green
    MY99 D2 V8 Kinversand
    Reply With Quote Reply With Quote
  6. 13th April 2022, 07:37 AM #6
    PhilipA
    PhilipA is offline Swaggie Subscriber
    Join Date
    Jan 1970
    Location
    Avoca Beach
    Posts
    14,152
    Total Downloaded
    0
    Never known those horrible square facet things to emit excessive RF,
    Old RRCs never had those square jobs.
    They all had the tubular TICK TICK pumps.



    https://i.ebayimg.com/thumbs/images/...wX/s-l225.webp

    Regards PhilipA
    Reply With Quote Reply With Quote
  7. 13th April 2022, 08:29 AM #7
    Mercguy's Avatar
    Mercguy
    Mercguy is offline Wizard Silver Subscriber
    Join Date
    Dec 2014
    Location
    FNQ
    Posts
    1,053
    Total Downloaded
    0
    OEM electric pumps about $150, so I know why someone put a facet in there. but the mech pump should be able to pull fuel if it's a decent one.

    No need for a suppressor on the fuel pump regardless.. if demand exists, it should be on main battery feed in fuse panel for the sensitive circuits that require "clean" power (radio, ECU / ABS on later cars) and sized appropriately (the inductor) and more importantly - fused.

    Having said that, I have to say I've not encountered any issues with RF in my RRC, but I also fully admit to having exorcised the price of darkness from most of the vehicle - it's all about perseverence and calculating the effectiveness of the solution versus cost versus "downtime (aka stranded factor, increases exponentially if SWMBO is driving)"
    Roads?.. Where we're going, we don't need roads...
    MY92 RRC 3.9 Ardennes Green
    MY93 RRC LSE 300tdi/R380/LT230 British Racing Green
    MY99 D2 V8 Kinversand
    Reply With Quote Reply With Quote
« LT95 gearbox | Hypothetical »

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!