| N941WR |
11-21-2014 01:12 PM |
Quote:
Originally Posted by Low Pass
(Post 935184)
200RV, 9.2:1, dual p-mags (old software, A curve), IO-360. Retarded 3-5 degs. Start procedure involves energizing starter, allow 3-4 blades, right ign on, engine fires, left ign on. Otherwise, I have experienced significant kickback and ring gear damage.
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Bryan, if your P-mags are wired per the manual, you run the risk of them losing the timing mark. This is one of the scenarios V40 is designed to fix.
If your P-mag is powered but grounded and you crank your engine over / start it on one ignition, the positive pulses in the MAP line can act like someone blowing in the tube. (Although the MAP is a suction, we found there are some high order positive pressure waves present possibly from the intake valve slamming shut.)
If you start on both ignitions (both P-mags ungrounded), you should not have an issue.
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