That was just to make sure they were all the same, it wasn't at WOT and not peaked, closer to idle and cold. Also, a quick google search for this engine at 100k has typical compression between 115 and 125 so yours is amazing. (not an expert, but not a new engine) I wanted to make sure I didn't have a bad cyl, so if one had been 70 I'd start more elaborate testing at that point, like positive pressure etc.
It was a "hail mary", not that the math lines up. I was trying to explain that I had re-checked everything. The pin is intact, the keyway on the crank cam looks to be in good shape.
NOW that' we've covered that I do know how to turn a wrench and this isn't a question about how to pull spark plugs or divide 360 into 5(and I realize I haven't been a forum member long enough to be too sarcastic), my original question related to how an engine could run, and run well, with the timing about 30 degrees advanced.
The timing marks indicate the engine is 30 degrees advanced, and the distributor cap is advanced as far as it will go, so it seems unlikely to be an issue with a mark OR the distributor. What would cause an engine to prefer to run so far advanced? Keep in mind that something happened while driving the car to cause the symptoms that lead to all the work described in the original post. There are a thousand youtube videos, and this very site has an amazing database, so the answer will likely not be straightforward. I'm posting to hopefully find the one guy who has had this happened AND has found the cause.
If you'd like, and it'll save you daydreaming about me living on a mountaintop in Nepal, I can go do a full compression test and report back. In the meantime I'll keep my jokes about bolts and my improvised testing results to myself.
It was a "hail mary", not that the math lines up. I was trying to explain that I had re-checked everything. The pin is intact, the keyway on the crank cam looks to be in good shape.
NOW that' we've covered that I do know how to turn a wrench and this isn't a question about how to pull spark plugs or divide 360 into 5(and I realize I haven't been a forum member long enough to be too sarcastic), my original question related to how an engine could run, and run well, with the timing about 30 degrees advanced.
The timing marks indicate the engine is 30 degrees advanced, and the distributor cap is advanced as far as it will go, so it seems unlikely to be an issue with a mark OR the distributor. What would cause an engine to prefer to run so far advanced? Keep in mind that something happened while driving the car to cause the symptoms that lead to all the work described in the original post. There are a thousand youtube videos, and this very site has an amazing database, so the answer will likely not be straightforward. I'm posting to hopefully find the one guy who has had this happened AND has found the cause.
If you'd like, and it'll save you daydreaming about me living on a mountaintop in Nepal, I can go do a full compression test and report back. In the meantime I'll keep my jokes about bolts and my improvised testing results to myself.