Carb was probably just slapped on right out of the box and never "fine-tuned", i.e. rejetted for your particular engine mods, if any, or even for "stock" engine. And DON'T just buy a rejet kit, most are wrong for Opels.BDD said:Did a quick test yesterday.
3 of the 4 cylinders gave the same value. About 110 psi.
#1 was a bit higher. The end of the tester was worn and probably wasn't
creating a good seal. I suspect that if retested, the compression might be fine.
All spark plugs were out and the battery was boosted with a charger that increases charge rate when starting the car.
The dwell was adjusted as part of a tuneup before the compression was tested.
After the dwell was adjusted and the idle rpm set the engine runs very smooth and "quiet".
When I bought this car, it apparently had old gas and had a horrible exhaust smell. I drained out the bad gas with a model airplane fuel pump with a hand crank. Seems to have gotten most of the gas out. Replaced that with high octane fuel. The exhaust smell is gone and it seems fine now, like a new car.
I have yet to adjust the Weber carb. and think it's running rich. I do notice a bit of carbon out of the tailpipe. No signs at all of oil burning.
Randy, almost all of the quality chargers, even the ones with the ability to crank over an engine with a bad battery, have a thermal shutoff switch internally. So you "shouldn't" smoke your charger. If you do see some magic smoke coming out of it, it's probably toast by then.Thanks for the idea, Paul. Although, I don't know what effect cranking the engine will have on the charger. Maybe it would draw too many amps and burn it up?