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If you are getting those kinds of readings it must appear confusing to you, let alone trying to write it up.
One or two things must be out of whack. There should not be that much movement within the slot of the distributor. When you can move things that much, well, it should die.
I mean, there really could be but in most cases the distributor should be very close to the advanced mark of 12.5 Before Top Center (BTC) degrees. All is good when the lock down bolt is located near the center of the slot. Not at one end or the other.
The distributor’s intermediate sprocket is moderately hard to line up properly with out a mirror in my opinion. The formed creased/bump line in the sheet metal on the right can be deceptive to the punched dot on the sprocket.
Another thing I watch for or noticed during my endeavors is that the belt’s third mark. It ends up down at the crankshaft and has to be counted or imagined to go over the required three slots to engage in the sprocket notch/mark.
There can not be any slack on the right side from the valve cam and around and down when you pull the pin from the hole in the shaft that is holding the tension roller back. Marks are nice but not mandatory to do the job. Checking the alignment of the three components to their casting and formed marks become paramount after all is set with the tension roller. Do a final check with a mirror and the good old finger tester of the belt.
Refrain from using the middle one though! Vehicle only understand certain words, spoken softly, especially if its a SHE!
Thanks for the posting back.
Phil
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