Gutless 250 miles

Discussion in 'Mech Tech' started by stewart kombi, Dec 28, 2018.

  1. and now it can’t make it up a hill in 1st at destination. Engine wouldn’t give enough power, throttle died and it just stopped...but engine continued running on tick over (when I’m expecting it to stall)...had to carry stuff up.

    Been a long day , London to mid Wales coast. Nursing her at max 50. Type 4 2L. It’s not fuel. Engine was cool the whole time. Might be some sticky valves, will check tomorrow...but it seems to run fine. It’s just been rubbish on hills all the way, from London. Any suggestions? seriously contaminated Clutch plate ?? Gearbox?? When to call RAC? (Prob 250 miles ago)
     
  2. Sticking weights in the distributor hence fine at idle but timing way out at higher revs?
     
  3. Faust

    Faust Supporter

    Does it rev up well when you are stationery out of gear ? .
    I know you said not fuel but when was your filter changed ....a bad contaminated tank can block a filter every year .
     
  4. davidoft

    davidoft Sponsor

  5. redoxide

    redoxide Guest

    is the clutch slipping, ie when driving up a hill is it making lots of revs and not making much forward momentum .. If you jump in it, set the park brake, stick it in 1st start it up and let the clutch out .. If it stalls its unlikely to be a slipping clutch..

    sounds like you have other issues, but you only have 3 possibles, electric or fuel or mechanical if your running a mechanical fuel pump it might not be pumping fuel, damaged diaphragm in fuel pump ? kinked fuel line ? sediment in the bottom of the tank blocking the outlet,? vacuum leak ? lots of possibilities on the fuel side alone with the symptom you described ..

    Do a compression test to eliminate any valve issues ..

    Are the brakes free? might sound daft but not unknown for sticky brakes to add just that wee bit additional friction to make it hard to go up hill.. ??
     
    Last edited by a moderator: Dec 29, 2018
  6. 77 Westy

    77 Westy Supporter

    What do you mean ‘throttle died’? Is the pedal actually opening the throttle in the noisy cupboard? Check valve gaps, I doubt if it is a sticky valve but if the gaps have closed up...
     
  7. Points gap (if you have them). And the one that troubled me recently was a disintegrated float valve and a float that was sticking to the side of the bowl.
     
  8. mikedjames

    mikedjames Supporter

    Stewart, you may remember that we shimmed one of your rocker arm assemblies as a "keep you going" bodge at a Techenders a while back ..Sep 2017 ?... becuse the exhaust valve on No4 was receding so far with burning LPG and general T4 hot heads, the rocker arm was hitting the spring retainer.

    Did you ever get round to changing that head or getting new valve seats fitted?

    Try the plug wire pulling trick to see if it is that No4 that has stopped contributing to the power.

    Based on experience:
    50mph gutless = 1 dead cylinder (plug wire dropped off)
    Not going up a slight hill = 2 dead cylinders. (T1 rocker assembly unbolted)


    At least check all 4 rocker assemblies are still bolted on.
     
    stewart kombi and Lasty like this.
  9. I ran it for the last 10 miles on lpg, 50 before that on petrol and all the previous on lpg..different filters etc and no change , so I’ve kind of discounted fuel as a main issue.

    Brakes seemed free as no heat on any of them after checking a few times en route.

    I’ve crapped out and called the RAC, hope they can find me up a small hill near Barmouth bridge hoping it’s just timing..or a few closed gaps?
     
  10. My guess would be It's running on 3 cylinders for some reason which will become apparent when you give it a good look over .
    I burnt out an exhaust valve whilst travelling but drove it for 2 days on 3 cylinders back to somewhere I could drop the engine and get it sorted out .
    Very slow up the hills but got me there .
    Easy test - When it's cooled down start the engine and see which exhaust is cooler than the others , if they're all the same, they're all firing ..

    Sent from my SM-A320FL using Tapatalk
     
    Davipon likes this.
  11. Based on my experience of killing engines, I'd check compression and go on from there.

    Good luck!
     
  12. Called RAC and they came. Got me to start it and drive it up the hill to the car park which it did effortlessly. Embarrassed me, he can’t fix something that’s working. I do this every year, something fixable becomes a big deal in my mind.

    Checked the gaps and 1 and 2 exhausts solid. Intakes 1 solid and 2 tighter. 3 and 4 intakes slightly narrower....prob been like that since London. Jeez. Silly me . Check before going. it’s now normal gutless and drove back yesterday in the proper cold....keeping up with the trucks which is the minimum needed on a motorway 8EA6F7A7-6037-4586-B781-BF8D5C4CC166.jpeg

    These winter mountains push a bus to its limits, here we are at the brigands inn, after Dinas Mawddwy pass, where I personally know of 2 type 5 clutches that Croaked and I’m still rolling along for another year! Cheers for all input!
     
    Iain McAvoy, paradox, Lasty and 5 others like this.
  13. Merlin Cat

    Merlin Cat Moderator

    I had one of my best ever holidays at a cottage in Dinas Mawddwy. Tho we had to drive across a field to it and my loaded Capri bottomed out and lost it’s exhaust :)
     

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