400/4 build. Paused due to other commitments. But starting up again

[McCabe-Thiele (Ted)]

Is your petrol tank in place yet as there might be clearance issues?

[ComfySofa]

Could be...not got that far yet!

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[McCabe-Thiele (Ted)]

Could be...not got that far yet!

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I have sent you a couple of PM's that might be of future help.

My late father who taught me on cars when I was 15 years old said son never forget you only need three things for an engine to work.
Fuel,
Spark
and those two things happening at the right time,
He added even with poor compression it should fire & at least try to run.

[Oddjob]

Can you not alter the coils in order to get them to fit? Are the metal poles on the new coils too wide to sit in the recess? Or are they too long?

[ComfySofa]

Just a tad too wide to sit in the recess....I'll take some pics later.

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[Oddjob]

Enough metal on there to file them down to fit I’d say

[McCabe-Thiele (Ted)]

That's what I had to do juts used a cutter/saw, file etc to widen them up - no issues with clearing the petrol tank either.

[ComfySofa]

Just about to say that....even with them as they the tank goes on fine...

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[McCabe-Thiele (Ted)]

Pretty sure that will foul the tank - worth seeing then if it catches - the top of the flat steel section needs to be almost flush with the top of the mountings iirc.
Update: Just read it clears so great! 😁

Looking at your picture you have the yellow wire for cylinders 2 & 3 on the left - thats fine if you have the HT leads accordingly I believe convention is Blue on the left for 1 & 4.

[ComfySofa]

In the garage now....yep - blue is 1&4 - not that i knew that but i had a 50 50 chance of getting that right!! - yep - tank is definately ok... gonna check for a sparking now on all of the plugs...

[ComfySofa]

Yep - the coils are working well, really good strong spark across all 4.....nice jolt up my right arm!

[Deano400]

Pretty sure that will foul the tank - worth seeing then if it catches - the top of the flat steel section needs to be almost flush with the top of the mountings iirc.
Update: Just read it clears so great! 😁

Looking at your picture you have the yellow wire for cylinders 2 & 3 on the left - thats fine if you have the HT leads accordingly I believe convention is Blue on the left for 1 & 4.

I've only ever seen Blue on the right, 1 & 4 Ted.

[ComfySofa]

Ive got the coils the other way round so it seems to match - i think....followed a video - really dont think ive got it right but, it did start....the header of cylinder 3 is cold - it starts and revs to about 3k and sits there until kill the ignition...so thats a little bit of a result....!

[McCabe-Thiele (Ted)]

So is it just one cold exhaust on number 3?
3 out of 4 is a good start
Have you checked number 3 plug is it wet.
Might be worth switching the leads to eliminate a poor HT connection or if you have a spare lead try it.

Or switch the leads for 2&3 see if the problem moves

[ComfySofa]

Had to come back in as I've got an early start tomorrow I've got spare HT but no plugs to go in the coils....I'll be back in tomorrow night...and the weekend.

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