Help... what could possibly be wrong?

Discussion in 'Mech Tech' started by Lila, Dec 27, 2018.

  1. I took the van out this morning for a run. After about 5mls I started to feel a miss fire but nothing too worrying.

    I parked up, had a spin around Gisburn forest on the mtb for a couple of hours.

    On returning she struggled to start and when I eventually did get her going she ran like a bag of spanners. The mis fire had got worse especially under load.

    I stopped and checked the timing with a strobe but all was well.

    The engine now struggles to start and then is really lumpy and doesn't have the power to move more than 10mph.

    Anyone have any ideas?
    I didn't get chance to check the plugs or points but while I was stressing all I could think was issues with the fuel.

    Could condensation form in the tank if left for a while?

    Currently stranded on the A65 waiting for Mr RAC
     
  2. Have any of the HT leads popped off? Ours uses to rattle loose ?

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  3. All secure.
     
  4. Points closing up? Take it one step at a time. Might be fuel, but I’d doubt it.
     
  5. I'll reset them and give it a go.
    Cheers
     
    snotty likes this.
  6. If stock ( lawn mower ) engine , is the solenoid on side of carb working properly also as daft as it sounds again if stock check to see if the ( pilot jet is it ? ) on the right hand side of carb is loose or even there . I've had both these issues before and have cause very similar symptoms to what you describing. And as above check service items points condenser , rotor arm , dizzy cap ( fine cracks or missing or broken terminals inside ) ect

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  7. Baysearcher

    Baysearcher [secret moderator]

    First thing to check is points if you’ve got them, as @snotty said
     
  8. stirlingmoz

    stirlingmoz Supporter

    It’s worth checking for a bit of condensation inside the distributor cap.

    I’ve had that before on a cold morning. Bus lives outside and as soon as I whip the cover off, I get condensation inside and in the engine bay.

    Hopefully a quick wipe round inside the distributor cap and a squirt of WD40 or similar may help.

    If it was running well before this, I’m sure it’ll be something simple.

    Stirlingmoz
     
  9. Blocked fuel filter is my guess :thumbsup:
     
  10. Flakey

    Flakey Supporter

    I’ll put my money on Condenser breaking down
     
    Lord Congi, jivedubbin and snotty like this.
  11. @Flakey wins the prize.
    Swapped the points but still the same. A new condenser and she's running like a dream again.

    I think the screw holding it to the distributor had come loose which caused the problem. The intermittent earth had fried it

    Thanks for everyone's help.

    R
     
    jivedubbin, Baysearcher and snotty like this.
  12. I’d check the condenser if I was you.

    :)
     
  13. Miss! Miss! @rustbucket 's cheating again!
     
    mcswiggs, Pony, andyv and 2 others like this.

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