firing problem

Post by **gluck** » Fri Jan 28, 2005 3:03 pm

Thanks to you i've changed my clutch and timing chain. This afternoon, i tried to start the engine for the road test and it was impossible.

I've taken off the plugs to verify they were running and they are. They engine turns with the starter but fails to fire.

Anyone has an idea?

Post by **Cam** » Fri Jan 28, 2005 3:15 pm

Fuel delivery problem? Have you put the ignition system back in the correct order?

What did you remove?

Post by **rayofleamington** » Fri Jan 28, 2005 3:23 pm

Oh no!

Are you 100% sure you got the timing chain on in the right place?? (by lining up the marks between the centre of the crank shaft and the camshaft)

you can check if the chain / camshaft position has a big error:
Put your finger in the #1 spark plug hole and turn the engine using the starting handle. When the air pushes out, this is the 'compresssion stroke' (when the spark should happen)
Then check where the rotor arm is pointing (in the distributor).
It should be pointing to the top right, and line up with the wire that goes to #1 spark plug

If it is ok, but still no firing then maybe you got a small error in the position, but if you are sure it was 100% correct then double check everything that you worked on before checking everything else.

Post by **gluck** » Fri Jan 28, 2005 3:24 pm

i changed the clutch assembly and the timing chain for a duplex one. So i removed the cooling system and the gearbox. The cables are putted in order 1 3 4 2

Post by **rayofleamington** » Fri Jan 28, 2005 3:31 pm

did you see my message above? We posted at the same time...

Post by **gluck** » Fri Jan 28, 2005 3:33 pm

Ray,
How would it be possible to do an error in the timing chain alignement? The sprockets are made to do it unpossible no?
I understand wich problem it would be but i don't understand how the error is possible (and i think it's that)

i didn't see the message

Post by **Cam** » Fri Jan 28, 2005 3:42 pm

The sprockets can't go on the cam & crank incorrectly, BUT they CAN be then turned around in the chain (before puttting on) so that the dots don't line up.

Post by **gluck** » Fri Jan 28, 2005 3:43 pm

:'(

How have they to be for good alignement?

Post by **Cam** » Fri Jan 28, 2005 3:47 pm

when on the engine the stamped dots have to line up with each other. It's better explained with a picture which should be in the manual.

Have a look at this picture:

http://potteries.mmoc.org.uk/Members_Ca ... 412_05.JPG

There is a little 'dot' stamped in the larger sprocket (near the bottom) this has to line up with a corresponding 'dot' on the smaller sprocket (which you can't see in my picture).

Post by **rayofleamington** » Fri Jan 28, 2005 3:49 pm

How would it be possible to do an error in the timing chain alignement?

oh!!
The normal ones should be lined up using the 2 marks (I guess the duplex one has similar marks)

Post by **gluck** » Fri Jan 28, 2005 3:50 pm

yes it's in the manual but not easy to see
Thanks, i'm going change that

Post by **rayofleamington** » Fri Jan 28, 2005 3:51 pm

ah - well if it is in the manual, I didn't need to draw that picture then!

Post by **Cam** » Fri Jan 28, 2005 4:19 pm

rayofleamington wrote:The normal ones should be lined up using the 2 marks (I guess the duplex one has similar marks)

Yep, the duplex one does. You can see that in my picture:

http://potteries.mmoc.org.uk/Members_Ca ... 412_05.JPG

Post by **gluck** » Fri Jan 28, 2005 5:01 pm

now it's fine, the chain was misaligned

Thank you everyone for the advices!