Engine stalling

[dctr7]

I've had a problem with the car for the last month.
When the car heats up and gets up to temp it has a tendency to stall.
I happens at or above 45 MPH or 2500 to 3000 RPM's
It first occurred after filling the tank with some Shell fuel but the
fuel looks clear and runs fine at lower speeds.
I've check fuel pressure, plugs, cap and rotor. I thought the issue was a bad cap chewed up by a bad rotor. After replacing both I'm still having the problem. Let me know what else I should check.
Thanks for any advice you can give.

1980 TR7 Spider DHC 2.0 Ac Delco Electronic Ignition.

[jclay (RIP 2018)]

Sounds like fuel starvation as high rpms. It could be a problem with fuel flow. The pressure can be good, but you are not flowing enough gas.

Did you change the in line filter? Also, try putting some dry-gas in the tank, you may have some water in there.

If nothing else, drain the tank, change the filter and start with fresh fuel.

Have fun, drive fast & safe, be kewl,

jclay

[FI Spyder]

I'm assuming this is carb'ed Spider. I'd replace fuel filter even though fuel may look clean. (they're cheap.) If Shell fillup was just coincidental, temp wise coil may fail as it heats up. Spark plug wires if they are old (as well as high tension wire to coil). What is the colour of the spark plugs? Black tan or white. Indicates rich , good or lean mixture. Condition of wire(s) from distributor to coil?

[dctr7]

Thanks for the Advice. I will change the fuel filter today. As far as wires, they have less then a 1000 miles on them and are 3 years old.
Any suggestions on swapping out the Delco coil. They are darn hard to come by. Could the coil be sending to much voltage thru the high power line into the cap? Could this have caused the center button on the inside of the cap to get toasted?

1980 TR7 Spider DHC 2.0 Ac Delco Electronic Ignition.

[dctr7]

I just grabbed this from another forum could be the fix to my issue.

Just a couple of quick things regarding the AC/Delco electronic ignitions some of us have on later model TR7s.


1.? Probably the weakest part of the system is the ignition module, located inside the housing the coil is in.? It is very suseptible to heat issues.? If you start having ignition problems, e.g. cutting out, dying, loss of power, etc., take the module out and clean the metal portion of it and the housing it bolts to.? Then?apply a thin layer of thermal grease like what's used to mate CPUs and coolers.? This will help the module's heat get conducted away and run a little cooler.

2.? If the module fails, don't dispair.? They are readily available at your local Delco wholesaler/distributor.? They are part number D1906, and were used extensively in the 80s on small block chevy truck engines.

This was written by one of our forum members OBIRICHKANOBI.

I also found this info for the module;
The part numbers for the Chevy module needed are: NAPA ECHTP45 Wells DR100, Niehoff DR400, AC Delco D1906.




1980 TR7 Spider DHC 2.0 Ac Delco Electronic Ignition.

[dctr7]

As usual the simple fix was the answer. The fuel filter was clogged with gunk from when I swapped it out after I purchased the car. After three years the filter had become full of rust and gunk. Thanks for all your help.

1980 TR7 Spider DHC 2.0 Ac Delco Electronic Ignition.