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Mjit

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Posts posted by Mjit

  1. What barriers are you thinking of, Kevin?

    Circuit wise almost all of it is permanent these days and the main sections that aren't (chicanes on Hunaudieres, Mulsanne and Arnage corners, entry to the Porsche curves) are quick removal ones owned by the ACO (though the last couple of years there's been a lot less re-opening of the public roads during the week).

    There's still a lot of temporary fencing around the campsites and padocks - but the camp site stuff comes down between Le Mans and the Classic and there's probably more padock fencing for the classic the the 24.

     

    Traditionally the biggest hurdles to be jumped have been getting permission to close the public roads.  Things seem to have been a lot easier the last 3 or 4 years, so I assume people running the Le Mans and La Sarthe councils, and the ACO are getting on better at the moment.

  2. 12 hours ago, Colin Lindsay said:

    Because it's closer to the top of the trim so needs a straight edge but has to be broad to spread the load;  a circular one will protrude over the top by the time it's wide enough. Tony's on the right track but those are too thick at the base, i need thin metal ones. I know I've seen them before somewhere, but don't know the name to ask for.

    Use the round ones but trim them flat on the offending edge?

  3. On 05/03/2020 at 14:30, Ziggy said:

    1972 mk4 spitfire, bought a new fuse box but cant get the old wires out of the old box, how do you do that?  the new box seems to have slightly different connections as well.  Do I just cut them and maybe solder them on?

    Assuming it's running the original, standard fuse box then the wires crimp diretly on to the fuse contacts so you have two options.

    1. Cut the wires as close to the fuse box as you can, then crimp on to the new fuse box blades.
    2. Accept that you're junking the old fuse box anyway and get physical with it till the connectors come free, still on their wires.  They should then slot straight in to the slots in the new fuse box.

    Personally I went route 2 the two times I've done it (it's REALLY hard to compress a new foam seal to get the new fuse box to clip in to the bulkhead...and really easy to snap the clips on the new fuse box...).

  4. I always take the prop. off my Spitfire from under the car.  To me you have do crawl under there to do the diff. one and remove the prop. so I find it's less hassle to just slide along and undo the front one at the same time.  Can't say I've noticed much difference in the spanner throw between front and rear UJs.

    • Like 1
  5. On 24/12/2019 at 11:32, Mark B said:

    ..replaced the yellow bulbs with E10 987 LED versions. The illumination is slightly better, a whiter light...

    Sounds like you've made the mistake of using white LEDs, rather than green ones - https://www.classiccarleds.co.uk/blogs/news/why-you-should-not-use-white-leds-behind-coloured-lenses

     

    I fitted white ones from eBay and was a little underwhelmed too...before I found Classic Car LEDs.

  6. 2 hours ago, Colin Lindsay said:

    I'm convinced I can smell diesel fumes from my latest purchase; every so often I get a smoky whiff from somewhere but every passenger that's been in it claims they can't smell anything.

    Maybe my nose is just being paranoid.

     

    At Le Mans (24hr) in 2018 different people would randomly get a waft of petrol smell that would quickly pass.  Took a couple of days blaiming different people filling their petrol generators before I popped the Spitfire bonnet to check the oil...and found the fuel pump had started weaping fuel up past the screw again.😟

  7. Wasted spark ignition just means each spark plug is fired once for each revolution of the engine.  In a 4-stroke engine there's only something for the spark to ignite in the cylinder every second revolution, at the end of the compression stroke.  The other spark that happens at the end of the exhaust stroke has nothing to burn so is a 'wasted spark'.

  8. 18 hours ago, thescrapman said:

    There Is a a multi pronged Bosch that is much Better than the NGK, proving very difficult to foul in my PI cars.

    about £1.50 each I think.

    Multi electrode plugs, be they Bosch/SplitFire/etc only have one benefit - longer service intervals between needing to adjust the spark plug gaps...which on a lot of members cars will be "never".  One electroide is always closer than the others, so the one the spark jumps to.  Over time the electrode burns down until it's no longer the closest, at which point the spark naturally jumps to the new closest electrode.

    At a guess a bit of fouling on a single electrode plug and that's all she wrote.  On a multi electroide plug the spark will just jump to the next, hopefully less fouled electrode, with the then running engine able to 'clean up' the fouling.

  9.  

    22 hours ago, Pete Lewis said:

    base on a good few problem   classics running  with resistive   plugs with an R in the suffix is they dont work well on our standard 22kv HT 

    swap for normals and hey presto all is recovered , so Im an advocate of  no R's    

    pete

    If you go full MegaJolt, etc electronic ignition then you MUST have resistive plugs (and matching HT leads).
    I don't know what 123 say for their kit but most "points replacement" systems are just hall effect sensors so don't need 'R' plugs.

  10. Best - full mappable electric ignition, such as MegaJolt.  Good side - rock steady spark at the right time, every time/better performance/better fuel economy.  Flip side - most work (mounting a trigger wheel on the crank pully/crank sensor 1mm from trigger wheel/Ford EDIS moduel/Ford coil pack/MegaJolt unit/wiring) plus rolling road session to get the best from it.

    Next - Probably a 123 distributor.  Good side new, so takes dizzy wear out of the equation and mappable to one degree or another.  Flip side - expensive and still less accurate than crank trigger wheel (fewer data points per revolution).

    Third place - The rest.  Good side - cheap, (should be) more reliable than points, and can cover up some dizzy wear.  Down side - can't cover up all dizzy wear and still stuck with standard, compromize advance curve.  Probably the best option for a standard engine with a dizzy in good condition.

     

    For a standard engine and dizzy in good condition one of the basic 'points replacement' systems is the best starting point if you're just trying to make things more reliable.

    On the other hand if the engine's standard but the dizzy past it's sell by date then a 123 dizzy if you're scared of wires/mappable if you're not.

    For a tuned engine I'd say jump straight to mappable ignition.  My car was always compromized on a mechanical dizzy, needing 3000RPM for pull away or running out of puff at 400RPM.  Since going MegaJolt it's happy from 2000-6000RPM, with more get-up-and-go than any dizzy setting and better fuel consumptions too (on a long drive where I'm not using that better get-up-and-go too much).

  11. 23 hours ago, Roger89 said:

    Would only run with choke full on even after it warmed up.

    While the mixture COULD be that far out, so worth checking (wind just up will flush with the carb throat, then back down (from memory) 2 turns to get a starting point) but I'd say unlikely so check/replace the hoses that go from each carb -> T piece -> rocker cover too.  I've had one of these split - the car would drive fine till I gave it some beans, at which point it would only run with the choke out.  The split would normally sit closed and all was well, but a bit of aggression would vibrate it open, letting loads of extra air in after the carbs and weakening the mixture to hell.

  12. I managed to keep the standard cover with a (I think 3/4") lowering block but did need some creativity.

    1. Fit longer studs.
    2. Fit nylock.
    3. Hacksaw studs flush with top of nylocks.
    4. ...run around on a Saturday trying to find somewhere to buy pair of 3/8" UNF half nuts so you can remove the studs the next time you need to remove the spring.
  13. 1 hour ago, clive said:

    I used some head studs from a spitfire engine on a car..... On my herald I bought bolts, which required careful measurement. They were needed as there was inadequate clearance above the spring to get studs in (courier spring plus 1" lowering block -awesome handling)

    I've got lowering block+longer studs on my Spitfire and have to remember to roll the spring top forwards after sliding it across the car and before seating it so I can drop the studs through the spring box.  There's then (just about) enough room to giggle everything in to position.

  14. Think about how they move when you're driving.  Turn the wheel to full lock and you twist the upright to either the left or right relative to the lower wishbone - and it's the thread on the bottom of the upright sitting in the thread in the trunnion that permits this to happen.

    Screw them up tight and you'll be forcing them to turn even further when you try to steer.  Unlikely to end well.

    So screw them up the thread till they stop, then back down till pointing the right way to bolt up - and able to turn left/right for full lock (which is quite a long way on the small chassis Triumphs.

  15. So took the (big, single filter in a saucepan) air supply parts off my scrapper 2000, cleaned it up, fresh coat of paint and gone to fit it to be better 2000 and...those air box->carb bolts AREN'T all the same size, but 2 different lengths (and one UNF, but let's not go there).
    Anyone know where the three longer/three shorter bolts go?  Nothing in the ROM and my parts book's 150miles away.

    Cheers

     

  16. 20 hours ago, Colin Lindsay said:

    Wired in to the courtesy light circuit? I know that for night driving even the gauge lights can be distracting, and love the GT6 facility where they can be turned off leaving the car interior completely dark. 

    Yep, replaced the 'random dangling bulb on just the driver's side' courtesy light with strips on both sides.

    Can't say I find the gauge lights distracting in my Spit.  The badly adjusted, over-dazzeling headlights of cars behind me in my mirrors, yes, but not the gauge lights.

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