Morris Minor Owners Club

I,ve just fitted lumenition MTK003 to my 68 moggie which has just undergone a long restoration.

The engine starts 1st time but revs like hell, and the exhaust down pipe glows red hot which is alarming so I turn the engine off pretty quick. I fiddled with the carb which did improve it a bit, but when I try to give some throttle the engine begins to stall and jump about. On turning off the engine it runs on a bit and then back fires

I checked the timing as per the manual ie No 1cylinder at the top of its stroke and the rotor arm points to No1. The strobe tells me the timing is ok, although because the engine is racing its probably a false reading.

the engine has stood for 10 years and I have never run it since putting it back in the car and fitting the electronic ignition, so I dont know whether I would have had the problem with conventional points fitted.

I'm not a mechanic, but I do have a bit of knowledge of the basics but thats all

I thank any of you for your help in advance as I have problems logging on to the message board and may not be able to reply

id refit a standard set of points and see how it behaves, Try disconnecting the Vac advance too incase somthing is amiss in that moving the timing about.
Ask your local mechanic if you can borrow a compression tester to check that the evasut valves are doing their bit.

are the plugleads on in the correct firing order ?
also is the distibutor advancing ok may have seized if it hasn't run for 10 years
if thats all ok I would look at the fuel side of things dirty carb, dashpot oil, manifold leaks etc

Have you refitted the pull down spring between carb and manifold bracket?

Hello Fensmiller1,

sort out the idle speed first, then set the timing.

Check, return spring as mentioned above, idle adjustment on the throttle, choke idle screw should be clear of the cam with the choke pushed in, piston free to fall in the dashpot, check for air leaks on the inlet manifold.

Then set the timing with the vacuum advance disconnected and check the mixture (base line starting point is with the mixture nut wound down two full turns from the jet flush with the bridge in the carburettor choke.)

Alec

IF ITS RACING/GLOWING/RUNNING ON, I WOULD LOOK FOR A MASSIVE AIR LEAK- eg SERVO PIPE FALLEN OFF ( IF YOU'RE LUCKY ENOUGH TO HAVE A SERVO!).