Thread: HELP!!!! Car/Timing/Fuel Issues - 1976 SIII Game

Have you checked the little screen on the fuel pick up in the tank?
Also check the fuel pump diaphragm, could be perished.

The symptoms suggest a blocked idling jet - last time I had that it was bits of the disintegrating in-line fuel filter!

However, in the past, I have had similar symptoms from ignition issues. Assuming that you have points ignition, it could result from wear in the distributor leading to changed points clearance depending on the position of the centrifugal advance mechanism, or even just incorrect points gap.

John

Thanks for the advice, Ill have a look at the tank/pump/jets today.<br><br>Ignition is a brand new electronic unit.<br><br>Thanks<br><br>Ben

Winston,
what type of electronic ignition unit do you have in it?

Cheers, Mick.

I put in a new Type 45D Electronic System.

So just a points replacement unit the same as an "Accu-Spark"I have used a couple of these, one in a two and quarter engine and the other in a Starfire four, and I find them a bit hard to actually time the vehicle.Possibly ok with a timing light, but I don't have one. I am used to timing my engines by setting the front pulley at the correct mark BTDC on the compression stroke for number one cylinder, then with the ignition on and a spare spark plug attached to number one lead (and earthed) I rotate the distributor very gently in the opposite direction of the normal rotation of the rotor button. When I get a spark on the spark plug I nip the distributor up at that point.Theses ignition units don't appear to throw a spark with this method. With the two and a quarter engine I ended up timing it with points in, then fitted the module and it seemed to run well. With the starfire I have had to mess around a bit with trial and error of the timing, as it appeared top be too far advanced in a position where it should have been pretty well correct.Maybe with the carby you could try giving the engine a few decent revs with the air cleaner off, them hold your hand tightly over the intake as you let the revs off, this might clear any crud in the idle jet, and save some time. With the crackling in the exhaust, it might be sucking air, hence the lousy idle, try going over all the manifold and carby base nuts.Good Luck.Cheers, Mick.

Originally Posted by winston1968

The crackling of the exhaust (it sounds like a race car on the over run) would indicate it is still running lean?

I thought crackling of the exhaust is excess fuel being burnt in the exhaust (not enough for a backfire) so would indicate a rich exhaust. Happy to be corrected as I am not sure.

Garry

If you have a air leak try spraying wd40 or alike around the manifold and carby with the engine running.
If there is a air leak in a area where you have sprayed the idle should improve ,