Pete Klapp wrote: > The temporary engine mount I made allows me to move the engine about five > inches fwd and aft. I'm using the tip of the spinner as my ref datum so > each time I move the engine fwd so moves the datum and I'm not sure if > that is correct.
The datum needs to stay in the same place while you slide the engine around, so the firewall is a good place. I used the backside of the prop hub, but that was AFTER the engine location had been determined. I don't think the spinner is a good place for the datum, since spinners "come and go"... Mark Langford ML at N56ML.com http://www.n56ml.com
