Quote:
samosali:
I am in error; I identified the flywheel for the M113 rather than the M119. Your parts diagram is correct. However, as you can see from the diagram, any mis-assembly would occur at intervals of 120 degrees.
Do you have access to an inductive timing light that could be used as a check on the results that you see with the scope?
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no problem at all. it is important to clear things. A hypothesis about wrong placement of the flywheel is very plausable at first glance and I like it very much. i will also wait for a response of Whipplem104 to hear his explanation.
In another words: I would like to verify my flywheel position. It seems that i can do it only mechanicaly (directly). measuring the crankshaft signal does not help because I have nothing to compare with it I guess.
I have a timing light for 30 eur so it is not a high end measuring equipment. neither is my oscilloscope but still i trust in it more than in timing light. So the timing light shows more or less variation between 10 and 20 degrees instead between 6 - 15 degrees before TDC of cylinder no. 1. But i must add that many times numbers change so rapidly that I am not able to read them ... so most probably in such moments they jump to 40 degrees or so. please note that measurements with oscilloscope showed very fast variation of timing for each cycle. I assume it is not possible to read timing light readings if they are not approximately constant at least for one tenth of second. At idle there is ca 10 revolutions of crankshaft per second, so one revolution in one tenth of a second. And if timing is not equal for two subsequent revolutions I will not be able to read the actuall result. Therefore measuremets with scope are more reliable. Do you agree?
read you in the morning. Thanks !!!