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Posts posted by petermcpete

  1. Hi all,

    I'm hoping for recommendations for a garage in the East Midlands that is good at some old school diagnostics...ideally with Triumph (Spitfire) engines or similar.

    As per this thread from a few months ago, I have been intermittently plagued with a misfire on cylinder 1...no spark condition (particularly under load, but also at idle). I have worked my way through the ignition components and also tried other bits and bobs like valve clearances but haven't really got anywhere...

    Spent this week on a 1200 mile road trip around Scotland where at points it was particularly bad...I've now exhausted my knowledge and would like someone else to take a look!

    A handful of trip pics below...went very well (apart from the above!) with no mechanical issues except from a small coolant leak easily fixed with a new jubilee clip.







  2. Sadly he's not too keen on the above - looking for a bit less work, I think something with good bodywork would be ideal, but in need of some mechanical fettling.

    Specifically he's keen on an MGB or similar - any of those knocking around on here or is it time to brave eBay or the like?

  3. I'd also suspect valves: you've changed all of the ignition system components to that plug, and you still have the same consistent problem.


    Not hard on that engine to whip the rocker cover off and see what the clearances are on that cylinder.


    However, if that plug is actually not sparking at idle then you've not found the ignition component causing the problem. I would go through changing the components one at a time again, methodically, and also try a different condenser if you have one.


    Is the distributor body tightly clamped, ie can it be turned? Could the timing have slipped in that way?

    OK. I'd still do the things I suggested in my previous post.


    What's the battery like? Is the engine earth lead in good condition? Is the battery earth lead good?

    The distributor cap? Each cylinder uses a different section of the cap - is the stud for that cylinder damaged?


    If the points gap has closed up it MAY be that tolerances between the 4 cam lobes allow 3 sparks but not the fourth and just at low speeds?


    Me? I'd check the valve clearances next.

    Thanks all, I've checked the valve clearances and they all seem good.


    It's got an electronic ignition, so no points gap to be checked.


    I've tried a couple of spare dizzy caps, same end result.


    All engine earth cables are good.


    My thinking is it must be the grounding of the spark plug (based on the video below attached), as it fires when grounded elsewhere - but what can I do apart from clean the thread (which I've already done), try a different spark plug, check connection between HT lead and plug is good, check plug gap...? Confusion...




    UPDATE: having written this out and waiting for a file to upload, I cleaned the plug holes again and cleaned the end connections on the leads...now it's all good! Took for a test drive and it quickly relapsed, but another clean and all good again...think I'll be replacing those leads (again)...

    Thanks all and merry Christmas!

  4. Yes, I was thinking that there was something that was causing the distributor cam/points follower heel to ‘wobble’ at the same spot on each rotation.

    With the engine running can you get the lead to the non-firing plug to spark? This would eliminate the ignition as being the source of the trouble.


    Yep - when the lead is swapped to a different plug, it fires every time. Just doesn't seem to like this plug/cylinder combo.

  5. I've taken the Toledo 150 miles south for Christmas, but am now faced with a bit of an issue.


    As a present, the Toledo has given me 3 plugs firing, 1 plug not.


    The engine (1296cc Spitfire MK4) has started misfiring at idle. It's only the one plug, and it seems to start firing at higher revs - I've had the spark plug light tester thing on it.

    I've tried a few different plugs, a different HT lead and a different rotor and dizzy cap - but still exactly the same on that cylinder! Any ideas?

    It's still drivable - I just have to not let the revs drop at junctions - but it's certainly not ideal!

  6. Super rare Solex 6000 flash. Not cheap at £400 but you will win bragging rights as it is shaft drive and has a disc rear brake.attachicon.gifIMG_6209.JPG

    Runs and rides and will hopefully get a dating certificate this weekend ready to register it.



    Atala Califfone - with MOT - £200 - Surrey -





    Very much a shed. But the PC50 donkey alone would sell for £60

    Still has its number plate.

    I've applied for a log book for the NVT but not the Novio.


    Anyway £40 would buy the Novio off me if you or anyone else want it. The NVT frame and log book I'm keeping but it can be pillaged for bits.

    Sent from my PRA-LX1 using Tapatalk


    Thanks chaps, much appreciated. However I've decided to go for Junkman's Mobylette - it's a sexy beast and it'll fulfill my french mechanical fetish!

    Will post an update here when it's collected and back on the road.

  7. May have gone over the top with the pictures




    Pre and post restoration/recommisioning (SORN from 2002-2015, many hours welding required)



    Breakdown on way to first MOT



    Changing the alternator belt by the side of a French motorway near Bordeaux




    Some French landmarks



    Off-roading part 1 - easy



    Off-roading part 2 - stuck



    The 900 mile weekend - Midlands to Ben Nevis and back






    The beast  with friends

  8. £40 of your earth pounds would buy you a mostly all there but rough as a badgers arse 1970's Honda Novio with PC50 engine. And by rough I mean bloody rough.

    I can get some photos tomorrow as its behind the NVT 50 in the shed


    Sounds interesting, I like a challenge.

    Where are you based, and do you know which parts are missing?

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