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somersetcanary
October 31, 2016, 12:32pm Report to Moderator

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hi I wonder if any one can help as I have just fitted a Lumenition Optronix kit on my Vitesse 6 1965 and have wired it directly across the coil as this is how I read the instructions. I am now having problems starting it although the car has sat for a few months without use. Has anyone else successfully fitted one of these, if so could you please let me know how you wired it?
thanks
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RobPearce
October 31, 2016, 1:40pm Report to Moderator

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First, remind me whether the Vitesse 6 is positive or negative earth?

I have a Lumenition on my GT6. It's got three wires to the sensor and three others. Those three are ignition supply, ground, and coil drive. I think they're red, black and ?purple? respectively. They should be connected to switched +ve (white), ground (black) and coil -ve.

If you've got +ve earth... it's a lot trickier!


Current fleet
1967 Vitesse 2L conv "Tessa"
1970 Spitfire Mk3 (project) "Toby"
1972 GT6 Mk3
Not enough time or space
Recently sold:
1972 2.5 PI estate "Harry" (gone to russell on here)
1973 Toledo 2-door "Spike" (gone to a club official)
Used to have:
1968 Vitesse 2L saloon
1980 Dolomite 1500
1977 Dolomite 1850
1980 Dolomite Sprint
1982 TR7 DHC Sprint
1975 2500S saloon
1971 Herald 13/60 Estate (with 1500 Spit engine)
1975 Stag
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JohnD
October 31, 2016, 2:24pm Report to Moderator


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You have the fitting instructions?
And you have "fitted it across the coil"?
Copies are online, eg here: https://www.merlinmotorsport.co.uk/files/transfer/technical/doc/optronicinst.pdf
Which sections are giving you problems?

John


Serial Vitesse racer.

Old Blue.  1995-2001
Silverback. 2001-2007
SofS. 2007 - to date.

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Steve P
October 31, 2016, 5:05pm Report to Moderator
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And also the firing position of no 1 may be quite different to the points setup,mine was half a turn of the dizzy different.
Steve


No. of Triumphs owned..2
No. of Triumphs working..2
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esxefi
October 31, 2016, 8:08pm Report to Moderator

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^^probably this.

is it showing signs of trying to fire or nothing at all?

also as rob says be careful if your car is + earth,don't know about the newer units but I accidentally reversed the polarity on one in the past and it never worked after that
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somersetcanary
November 2, 2016, 11:14am Report to Moderator

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Many thanks everyone.
Yes I connected it directly across the coil, no doubt I misread the attached but please take a look.
It sounds like it is about to fire but doesn't quite catch.
It is a negative earth.
I haven't tried playing with the distributor yet as I want to ensure that I have wired it correctly first, how have others wired it,,directly to the ignition switch or somewhere else?
It has sat there for a few months but I have put fresh fuel in.

Thanks



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RobPearce
November 2, 2016, 2:27pm Report to Moderator

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Sure, the fitting instructions do appear to suggest the coil +ve as a possible source of ignition switched supply. It would probably be OK on a Vitesse because there's no ballast resistor so coil +ve does connect to the white wires in the loom.

If it's almost starting but not quite catching then it's probably what SteveP and esxefi suggest above. You could usefully do a spark test (remove one plug (or remove one lead and connect a spare plug) then clamp the plug body to somewhere earthed, crank over, look for sparks) to see whether the Lumenition is working at all. But, if it's newly fitted and you haven't yet done so, you DO NEED to set the static advance before you can expect the engine to start.


Current fleet
1967 Vitesse 2L conv "Tessa"
1970 Spitfire Mk3 (project) "Toby"
1972 GT6 Mk3
Not enough time or space
Recently sold:
1972 2.5 PI estate "Harry" (gone to russell on here)
1973 Toledo 2-door "Spike" (gone to a club official)
Used to have:
1968 Vitesse 2L saloon
1980 Dolomite 1500
1977 Dolomite 1850
1980 Dolomite Sprint
1982 TR7 DHC Sprint
1975 2500S saloon
1971 Herald 13/60 Estate (with 1500 Spit engine)
1975 Stag
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sparky_spit
November 2, 2016, 5:00pm Report to Moderator

Mike Banks
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Further to what Rob says above, and if as you say it's almost catching, there is a quick and dirty way to "adjust" the static timing while it's turning over and trying to start.

Mark the distributor's current position so you can return it to where it was if you need to. Then slacken off the clamping bolt just enough so that you can just turn the distributor by hand.  Then try and start the engine while slowly turning the distributor one way first (I bet on more advance being needed) and then the other. It might be easier with someone to help as you may not have enough hands/long enough arms....

If it starts, then it gives you a clue as to where the fault is and you can then go ahead and set static timing properly, and further adjust when on the road for best running.

If it doesn't start, you have lost nothing and can return the distributor to where is was and continue your fault finding from where you were before.

It's worth a quick try.


Location - North Essex

1968 MkIII Spitfire - 2009, 2013, 2015 10CR. 2009, 2010 Nachtrit. 2011, 2012, 2014, 2015, 2016, 2017 HCR (..and 11/14ths of the 2011 10CR)
Yamaha RS200 two stroke smoke machine.
Royal Enfield Bullet 500
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somersetcanary
November 15, 2016, 12:07pm Report to Moderator

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Thank you everyone for your help.
It turned out that the sensor was not picking up the blades, now replaced and sorted.
Luckily no need to adjust the distributor or re-wire. now just to see if I notice any long term improvement or just took some authenticity away for no real gain. This is a long moral discussion and not technical but many thanks.
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