This is a continuation of my thread at http://www.thegsresources.com/_forum...ve-not-seating about the loss of compression in the #3 cylinder and sudden poor running of the engine. I took a look at the timing tonight, not good. The timing jumped and most likely bent at least this one valve enough to prevent it from closing.
The two cams are still aligned and the correct number of chain pins between the timing marks, but the crankshaft is not at TDC any more... the cams are ahead of the crankshaft.
Scenario on the road when this problem occurred: back road, traveling about 35 mph around a somewhat blind curve and a car pulled out in front of me. Not quite an emergency stop, because I was able to hit the horn while rapidly slowing down behind this car, but that was the end of the good running engine. I was downshifting quickly, and braking hard, but would that have caused the chain to jump on the crankshaft?
Pictures will be added in following posts since I can't add more than one at a time.
Dave
The two cams are still aligned and the correct number of chain pins between the timing marks, but the crankshaft is not at TDC any more... the cams are ahead of the crankshaft.
Scenario on the road when this problem occurred: back road, traveling about 35 mph around a somewhat blind curve and a car pulled out in front of me. Not quite an emergency stop, because I was able to hit the horn while rapidly slowing down behind this car, but that was the end of the good running engine. I was downshifting quickly, and braking hard, but would that have caused the chain to jump on the crankshaft?
Pictures will be added in following posts since I can't add more than one at a time.
Dave
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