|Posted: Mon Mar 13, 2017 5:57 pm Post subject: Vans shipped D4A5 engine
We installed a factory new D4A5 when we built (2012). It has a
6393 Slick Mag on the Left side and a 6350 on the Right side (no impulse
couplings). Had no problem starting cold or hot (except for leaving the
mixture out when engine hot until it fires--2-3 seconds, and then
enriching the mixture) until we had about 270 hours on the new engine.
Started to be hard to start, especially when hot, then. A couple
flights later it ran a little rough with the Left Mag check at run up.
Put in new plugs in spite of the original plugs checking out good,
gapped and cleaned,etc. Still hard to start, even when cold. Pulled
Left Mag and had it "rebuilt-repaired" ($375). Starts immediately
now--just a couple turns of the prop. Still use the hot start routine
(Fuel mixture lean until fires) which they tell me is indicative of
D4A5's. N123CV #41087 Doc
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