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| Joined: | 08-24-2017 |
| Location: | Lorton, Virginia USA |
| Posts: | 9 |
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I purchased a cheap Blow Down gauge and discovered that advancing the crank beyond TDC the leakage decreased to 15-20%. This tells me the cams are retarded and the valves undamaged. The car came with an extra set of well used cams and towers. I plan to take one of the pulleys off and hold it up to the engine cam pulleys to visually determine how much they are retarded. 3 teeth retarded seems to be in the ballpark as I remember.
With the crank at TDC I will remove the belt, reverse both pulleys and manually set the cams where the blow down just ceases and check the mark alignment. If they are now within a tooth or two I plan to match the marks and put the old belt back on and check the compression. I figure advancing the cams 3 teeth while at TDC will do no damage.
If all seems well I will put the new Gates 104 belt on and proceed with other checks. Don't want to damage a $116 belt, don't you know!
I really appreciate the replies from you and the other gentleman. It really helped keeping me on the right track.
Tony