free hit
counters
Starting/sparking problems. - Engine & Ancilliaries/Gearbox - The Lotus Forums - Lotus Community Partner #ForTheOwners Jump to content


IGNORED

Starting/sparking problems.


Go to solution Solved by Angus553,

Recommended Posts

Hello Everybody      Have currently got starting problems, It currently wont start and when cranking with the ht lead and spark plug to earth it doesnt spark at all or does 1 spark on the initial turn of the key and then nothing. 

Eventually got it started with a push start in gear and drove home.(not sure how as had no spark....but it worked!!)

Since then  the rotor arm trigger wheel coil and leads and spark plugs (distributor cap new and working fine without anything appearing to be worn out)  have been changed over but still the same symptoms.  It appears as though it sparks on position 2 but not position 3, where it just spins around?? some while back the spark to earth on the  accuspark electronic ignition found a path to earth where the old and new wires joined together but this was fixed but now getting the same symptoms. My thoughts are that the electronic ignition is now not working or it could be some kind of problem with the ignition barrel/switch??

If anyone has any thoughts please let me know

Thanks  Angus

 

Link to comment
Share on other sites


Upgrade today to remove Google ads and support TLF.

To test your ignition barrel theory you could disconnect the white/red wire from the starter and the white/pink wire from the coil and look for 12v at each in both positions of the key.

Pete

  • Like 1
Link to comment
Share on other sites

Hi Excel v8  Have done as you suggested although my white/pink wire is white from the barrel to the coil.(via the fuse box.)  Tested on the left hand side of coil where the white wire was and get 13.1 v on pos 2 and 12.9 on pos 3 with slight fluctuations. Does this mean the ignition is ok then? just for good measure the key has started to stick in pos 3 occasionally !!

Link to comment
Share on other sites

Maybe the contacts are slightly pitted in the ignition barrel, but that shows that when the ignition is in the "crank" position (3) power is still getting to the coil.  Might be worth doing the same test at the coil while the car is actually cranking - see what the voltage is.

Pete

  • Like 1
Link to comment
Share on other sites

Posted (edited)

Whilst cranking the voltage is around 10.5v. With the white wire disconnected im still getting 1 spark and also with the red wire disconnected as well. The red wires are the additional ones for the electronic set up.

Edited by Angus553
Link to comment
Share on other sites

  • Gold FFM

No spark when cranking can be due to the voltage drop when the starter motor spins. Especially if the coil is old and not performing as it should. Once running the alternator will guarantee a higher voltage, which would explain why the push start worked.

To eliminate the ignition, I'd put a new feed to the coil, directly from the +12V post, just for testing. Do make sure it's easy to remove to shut the engine off again.

  • Like 2

I have made many mistakes in my life. Buying a multiple Lotus is not one of them.

 

Link to comment
Share on other sites

16 hours ago, Escape said:

I'd put a new feed to the coil, directly from the +12V post

Be careful if it's fitted with a 6 volt coil, you don't want to burn it out :thumbup:

  • Like 2

Cheers,

John W

http://jonwatkins.co.uk

Link to comment
Share on other sites

Hi Escape and Jonwat 

 have connected a 12v feed from the battery to the left side of coil with other wires still attached, Its an accuspark 12v coil and the same symptoms occur,as in 1   spark or no spark at all.  With the new feed should it spin without turning the key? as it didnt unless the key was turned. Have fitted 2 accuspark coils both look in good condition and the result is the same. If the ignition is ok then by elimibation it has to be electronic ignition for which Ive got replacements for but a PITA to fit having done it twice previously, or the distributor(hopefully not) assuming all  replaced parts work properly of course.

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...