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Thread: Anybody got a Lightweight?

  1. #61
    Join Date
    Jan 2012
    Location
    Geelong
    Posts
    745
    Need a bit of help.

    Can't get to the bottom of (what I assume is) the fuel starvation issue.

    Engine starts and idles fine and revs ok with no load.
    It pulls away and accelerates in 1st up to 2nd but then starts coughing and spluttering and dies.
    It won't get above about 20kph.

    I need to go round checking everything again and rule out an electrickery problem, but plugs, leads, dizzy cap and coil are all new. Fitted just prior to import.
    Fuel pump/glass bowl thingy is also new (blue box job, though) as is the filter just before the carb, which is a replacement weber.
    The hand primer on the fuel pump works and I've made sure that petrol is getting up to the filter/carb, but then it's hard to check this once I start driving! I'm wondering if it's either sucking in air, or I've got a bit of dirt in somewhere.

    It is possible that the petrol is a bit dodgy, it has been sat for a while, but I put 10 litres in a few days ago.

    Any other ideas/suggestions for what I should check?
    Dan

    '14 Def 110
    '75 Lightweight
    '98 300Tdi Disco (gone)
    '80 2Dr Rangie Classic (gone)

  2. #62
    Join Date
    Jul 2011
    Location
    Yarrawonga, Vic
    Posts
    5,941
    Quote Originally Posted by DieselDan View Post
    Need a bit of help.

    Can't get to the bottom of (what I assume is) the fuel starvation issue.

    Engine starts and idles fine and revs ok with no load.
    It pulls away and accelerates in 1st up to 2nd but then starts coughing and spluttering and dies.
    It won't get above about 20kph.

    I need to go round checking everything again and rule out an electrickery problem, but plugs, leads, dizzy cap and coil are all new. Fitted just prior to import.
    Fuel pump/glass bowl thingy is also new (blue box job, though) as is the filter just before the carb, which is a replacement weber.
    The hand primer on the fuel pump works and I've made sure that petrol is getting up to the filter/carb, but then it's hard to check this once I start driving! I'm wondering if it's either sucking in air, or I've got a bit of dirt in somewhere.

    It is possible that the petrol is a bit dodgy, it has been sat for a while, but I put 10 litres in a few days ago.

    Any other ideas/suggestions for what I should check?
    The fuel tank change over switch in the seat box is notorious for leaking air. Even with new cork gasket kit my new fuel pump still had trouble drawing fuel . Problematic anytime I wanted some power. I got frustrated and added a 12V facet in the feed from one of the tanks to push fuel through the change over switch / fuel cock - a bodge but it solved the problem.

    Thats one part I was glad to give away with the tanks when I sold them to another lightweight owner.

  3. #63
    Join Date
    Jan 2012
    Location
    Geelong
    Posts
    745
    Thanks Don, I'll check the changeover tap.
    I've got an old spare one lying around so I might swap between them, see if that helps.
    Dan

    '14 Def 110
    '75 Lightweight
    '98 300Tdi Disco (gone)
    '80 2Dr Rangie Classic (gone)

  4. #64
    Join Date
    Jan 2012
    Location
    Geelong
    Posts
    745
    Think I've fixed it.
    Took a video of the fuel flowing through the filter prior to the carb so it definitely had air getting in somewhere.
    Bypassed the tap and ran a hose straight from the tank to the lift pump - no more bubbles, but it still ran like a dog.
    So I started looking through the electrical system and found the coil getting unbelievably hot. Too hot to touch.
    New coil and she now runs like a dream!
    Just need to fix the running-on issue and I think it's roadworthy time Anybody got a Lightweight?
    Dan

    '14 Def 110
    '75 Lightweight
    '98 300Tdi Disco (gone)
    '80 2Dr Rangie Classic (gone)

  5. #65
    Join Date
    Jan 2012
    Location
    Geelong
    Posts
    745
    It failed the roadworthy, bugger.
    Cracked rubber in one of the mounts and the passenger door decided it refuses to stay shut.
    New mounts are fitted so that solves that one.
    Passenger door got solved by a combination of a new door striker plate and new door seals with a smaller bulb seal. It now stays shut.

    Just waiting to get it retested and hopefully it's now all good.
    Dan

    '14 Def 110
    '75 Lightweight
    '98 300Tdi Disco (gone)
    '80 2Dr Rangie Classic (gone)

  6. #66
    Join Date
    Jan 2012
    Location
    Geelong
    Posts
    745
    Update....

    VASS engineer's report - check.
    Roadworthy - check.
    Join classic car club - check.
    Fill out forms for club permit - check.
    Get club plates from VicRoads - check.
    Rush home in excitement to fit plates and go for a drive - check.
    Get home to find Lightweight has developed a bladder problem and dumped its coolant on the floor.... check!

    Dammit.
    Dan

    '14 Def 110
    '75 Lightweight
    '98 300Tdi Disco (gone)
    '80 2Dr Rangie Classic (gone)

  7. #67
    Join Date
    Jun 2009
    Location
    Bacchus Marsh Vic.
    Posts
    3,239
    Quote Originally Posted by DieselDan View Post
    Update....

    VASS engineer's report - check.
    Roadworthy - check.
    Join classic car club - check.
    Fill out forms for club permit - check.
    Get club plates from VicRoads - check.
    Rush home in excitement to fit plates and go for a drive - check.
    Get home to find Lightweight has developed a bladder problem and dumped its coolant on the floor.... check!

    Dammit.
    Close, oh so close.
    Iíve got my old take off hose if you need them short term, heater hoses are smaller than the civilian versions too.
    Cheers, Kyle



    The Good Oil.
    When did you last visit?
    http://www.aulro.com/afvb/good-oil/



  8. #68
    Join Date
    Jan 2012
    Location
    Geelong
    Posts
    745
    Thanks Kyle.
    I've got Monday off work so I'm going to spend the day looking for the leak!
    I'll let you know what I find.
    Dan

    '14 Def 110
    '75 Lightweight
    '98 300Tdi Disco (gone)
    '80 2Dr Rangie Classic (gone)

  9. #69
    Join Date
    Jul 2011
    Location
    Yarrawonga, Vic
    Posts
    5,941
    Bugger , thats frustrating.

    Dan, which VASS Engineer did you use?

    I had my '49 Dodge pass VASS a month ago and I should be driving it around now but my Engineer was killed in a horrific crash(woman ran into the back of him, killed Engineer & Car Owner whilst testing a restored FJ) before he sent the approval into VicRoads . Now I have to go through the process again , new VASS appointment on the 15th , but I have the brake test tickets from his machine so that will help.

  10. #70
    Join Date
    Jan 2012
    Location
    Geelong
    Posts
    745
    Hi Don,

    Ouch that's terrible, poor bugger.

    I'll dig out his details and pm you.
    Dan

    '14 Def 110
    '75 Lightweight
    '98 300Tdi Disco (gone)
    '80 2Dr Rangie Classic (gone)

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