I've used only rule of 9 for the last 50 years.
However I only move the crank 4 times, as you can get both an inlet and an exhaust valve (nearly) at full lift at the same time.
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| Rocker clearance adjustment - Rule of 9 v's TDC https://www.ausmini.com/forums/viewtopic.php?f=2&t=90838 |
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| Author: | gtogreen1969 [ Wed Oct 21, 2015 1:39 pm ] |
| Post subject: | Rocker clearance adjustment - Rule of 9 v's TDC |
Good Afternoon all I have just done my head re-tension and adjusted the valve clearances and as usual I use the rule of 9 like in the workshop manual. However I rechecked the settings at TDC for each cylinder and got 2 thou more on every rocker. I have turned the engine over multiple times and rechecked everything again using both methods and found using the rule of nine I still had 19 thou clearance which was my setting but putting each cylinder on TDC firing I came up with 21 thou. I suspect this is because of a large overlap of the cam lobes. Has anyone noticed this before? |
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| Author: | drmini in aust [ Wed Oct 21, 2015 3:53 pm ] |
| Post subject: | Re: Rocker clearance adjustment - Rule of 9 v's TDC |
I've used only rule of 9 for the last 50 years. However I only move the crank 4 times, as you can get both an inlet and an exhaust valve (nearly) at full lift at the same time. |
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