car wont start,i have spark and fuel,dont understand it

markmills2000uk · Post by **markmills2000uk** » Wed Nov 29, 2006 8:29 pm

ok i just fitted a new dissy as my old one died,now iv been trying to start the car and iv got spark and when i take the plugs out they stink of fuel but i cant get the car to fire up,
if i take the two relays out the efi loom then turn it over car car backfires a lot so its definatly gettin fuel,but when i put the relays back in i still cant get it to start,

could it just be flooded or timing really far out,

ian.stewart · Post by **ian.stewart** » Wed Nov 29, 2006 9:02 pm

Put some new plugs in it, but before you do that, turn the engine over on the starter with the plugs out
Ian

GreenV8S · Post by **GreenV8S** » Wed Nov 29, 2006 9:13 pm

Agree with the above, also don't assume that the ignition timing is right.

LazyDocker · Post by **LazyDocker** » Thu Nov 30, 2006 12:31 am

Definately agree with above... Re-check the timing and the leads, it's easy to put the leads back wrong, as I'm sure we can all agree on as we've probably all done it in our time!!

Richard · Post by **Richard** » Thu Nov 30, 2006 12:43 am

3rd'ed. Fuel + spark + backfires a lot? Maybe timing, but I'd bet it's the firing order - check the leads are in the right place first. I've sworn I had it right myself before - checking against Mr Haynes' finest - but it was completely backwards...

ian111s · Post by **ian111s** » Thu Nov 30, 2006 10:23 am

i had the same problem and it was the dizzy was 180' out, i moved the leads around to compensate and it fired up, so i reset the dizzy correctly and replaced all the leads.

markmills2000uk · Post by **markmills2000uk** » Thu Nov 30, 2006 5:23 pm

i know what order they are supposed to go in but how do i work out which one on the dissy cap is one,i dont know where to start

Post by **katanaman** » Thu Nov 30, 2006 6:11 pm

turn the engine till No1 is on TDC compression stroke, where the rotor arm is pointing to is No1 lead. Its also possible to have the timing pointer at TDC but on exhaust stroke which sounds like is the case at the moment I.E 180 deg out.

markmills2000uk · Post by **markmills2000uk** » Thu Nov 30, 2006 9:21 pm

it seems like it is 180 out,what would be causing this

would it be that its on the oil pump drive the wrong way round

Post by **katanaman** » Thu Nov 30, 2006 9:30 pm

Putting the dizzy in with the shaft 180 deg out causes it, its nothing to do with the oil pump. It might not be but it does sound like it. Just because the body is in the same place doesn't mean the timing is the same when you have removed/replaced the dizzy. Its so easy to put it back a few teeth out or if the engine has been moved a full 180 deg out. Just follow what I said above and you will soon see where you are, you can then move the leads to where they need to be.

markmills2000uk · Post by **markmills2000uk** » Thu Nov 30, 2006 9:35 pm

i followed it as much as i could but i cant get the timing in the right place cos the amp hits the engine so the dissy wont turn any more,

il take the dissy out n put it back it moving the shaft 180 deg round,hopefully that will fix it,cheers for ur help people
wouldnt have figured this out without you

Post by **katanaman** » Thu Nov 30, 2006 9:41 pm

Why not just move the leads round to the right place even if it is just a test. There is nothing to say where the leads have to be on the dizzy, they can be anywhere. Its the order and the position to the rotor arm that matters.

Post by **Coops** » Thu Nov 30, 2006 9:50 pm

and just for reference,
passengers side (n/s) is cylinders 1,3,5 and 7
drivers side (o/s) is cylinders 2,4,6 and 8
with cylinders 1 and 2 being the forward two cylinders

ChrisJC · Post by **ChrisJC** » Fri Dec 01, 2006 1:05 pm

To set the timing from unknown, I remove the drivers side rocker cover, turn the engine so both valves on no. 6 are open equally. This means no.1 is at TDC on the firing stroke.
Then I stick in the dizzy so the rotor arm is pointing to where the no. 1 lead is exiting from and so the little magnetic spider is pointing to the pickup. Then put it all back together and away it'll go!

Chris.