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help with ignition problem
Hi folks need some insight into an ignition problem.
I have a 76 450sl with cis injection that wont start. I tested plug cable to cylinder 1 and found I have 20KV plus using a voltage tester so assumed the problem was fuel and have spent the last week playing with the injection system, tested everything and it is all at spec.
car still didn't start so I played with the timing all in spec for static timing still no start.
finally pulled the spark plugs today to test the compression (yep I was starting to go a little loco) whilst the plugs were out got a friend to crank the engine to test the compression and had one of the plugs in the wire resting on the engine, there was no spark!
tested another plug on a different plug wire and as the distributor turns I get a little puff of smoke from the plug but no spark. test it with the voltage tester get 20KV plus spark. put a different spark plug in just a tiny spark or a little whiff of smoke as the plug is supposed to fire.
I have 12vplus at the coil, 13.5 at the battery, the distributor is turning and will fire a timing light or a spark tester at 20KV. The plugs are autolite 64 (recomended replacement for the car) and have done about 80 miles. all the cables ohm out as per spec (less than 3K ohms)
any thoughts appreciated
thanks
Barri
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