firing order

Hi, one last thought before I hand this problem over to someone else would it be possible for number 1 of the firing order to be at the other end of the distributor ie 180 degrees from where I think no1 to be,if someone has fitted a new distibutor and not set it up properly, one last idea in desperation
thanks Ian

well in theory it could be in any position.
If it was me id line up the timing marks then look at where the rotor arm is and work from there.

take no 1 plug out, stick a metal rod in and rest it on top of piston, rotate engine until you can feel tdc, just to check the timing marks cos sometimes they are off. then you will know exactly where n1 is on your dizzy cos the rotor will point to it.

ideally set it up right so that no1 is on the drivers side of the front clip.

cheers

Mr Noisy said:

take no 1 plug out, stick a metal rod in and rest it on top of piston, rotate engine until you can feel tdc, just to check the timing marks cos sometimes they are off. then you will know exactly where n1 is on your dizzy cos the rotor will point to it.

ideally set it up right so that no1 is on the drivers side of the front clip.

cheers

Click to expand...

Or the rotor could be pointing 180 degrees from number 1. Don't forget that the piston is at TDC twice in a stroke cycle

Cheers

Chris

Hi Ian,

Distance diagnosis is a bit hit and miss but if the engine was running before, we should be able to get to the bottom of the problem sooner or later. (or advise you phone a mobile mechanic)

You have found your number 1 according to the timing mark on the pully. The fact that it is not where the diagram shows it ought to be shows that whoever put the distributor in last was not aware of the convention but this is only a minor issue. However, as it is in the wrong place, you can only assume that it is either 1 or 1 is directly opposite. Assuming that the rotor is fitted correctly (there is a locating lug on the shaft) and assuming you have tested for spark, with the leads fitted in the correct order, you should have ignition from one starting point or the other.

What make are the leads, cap and rotor?

Cheers

Chris

Ragtag said:

Or the rotor could be pointing 180 degrees from number 1. Don't forget that the piston is at TDC twice in a stroke cycle

Cheers

Chris

Click to expand...

so how do you work out when youve got number one on compression?

Mr Noisy said:

so how do you work out when youve got number one on compression?

Click to expand...

Take rocker cover off check both Valves are closed & piston is at TDC.

Hi, Got the disco running this morning turns out my no1 is where no7 should be, thanks very much for everybodys advice
rhanks Ian

Result!

wonder how it got there

Mr Noisy said:

so how do you work out when youve got number one on compression?

Click to expand...

If you have a non working engine - what Redhand said.

If the engine is a runner, set the timing with the rotor at 1 before you make any changes!

Cheers

Chris

hennas said:

Hi, Got the disco running this morning turns out my no1 is where no7 should be, thanks very much for everybodys advice
rhanks Ian

Click to expand...

Well done. Satisfying isn't it

Cheers

Chris

redhand said:

Take rocker cover off check both Valves are closed & piston is at TDC.

Click to expand...

Good shout mate, cheers