different hot start thing

[jesfirth]

My problem is not the usual one. When the car is very hot after a blast it will not restart after a couple of minutes standing. the fuel pumps prime, it spins over quickly but will not catch. It bump starts easily and then runs perfectly. Its worse on hot days.

ideas?

[FlipFlopGriff]

Stop driving so hard.
FFG

[steve-V8s]

How about the ECU is getting false info about the temperature and throwing in the wrong amount of fuel.

Are you still using one of those spinny round things to point the sparks at the appropriate cylinder ? If so I believe the original ignition amplifier was rather prone to giving up when hot .

I suppose one fix would be to always park on a hill.

[jesfirth]

Steve thanks - where/what is the ignition amplifier - is it inside or outside the distributor?

[steve-V8s]

It‘s a long while since I went to Coil packs but I seem to recall it was mounted fairly close to the coil. Could also be the coil if yours is still the original oil filled one as they were terrible going all weedy sparked when hot.

[jesfirth]

ok thanks - i will have a look for it. the coil is old anyway and i have a new one sat in a box so will fit that anyway cheers jes

[spend]

jesfirth said:

Steve thanks - where/what is the ignition amplifier - is it inside or outside the distributor?

Early pre-serp it is bolted to the outside of the distributor, later serps it is remotely mounted on the coil bracket (and also suffers from the link cable breaking down).

It takes the weedy dizzy timing signal and amplifies it enough to trigger the coil.

[Tavan]

Jes, if there's time I'll show you what and where it is at Combe tomorrow. I have a used but servicable one going spare having gone wasted spark setup recently.

[mcosh]

Interesting hot start issue. Try this next time. When you try to restart from hot just turn ignition fully off and back on again twice without firing. When I did this the car would then fire on the next turn. Turned out that my base idle was incorrect and I needed to set it correctly. As a result the ECU got the wrong reading until I turned the key on and off which moved the stepper.

When I get that problem now its the first thing I check.