My guess - ice formed at higher power warms up and moves - swallowed by the
carb probly.
Ferg
----- Original Message -----
From: "Richard" <riddon@btinternet.com>
Subject: Europa-List: Rough running 912S again
|
| Following my report of rough running of my 912S last week, I flew with
| my inspector today to try to replicate the conditions in which the rough
| running occurs.
|
| It seems to happen at the top of a climb, when the aircraft is levelled
| off, speed builds to cruise then I back off the throttle. At this point,
| the engine 'plucks' for a minute or so then smoothes off. I have a C.S.
| prop and if I keep the manifold pressure towards the top end of it's
| range, say 25in. the plucking continues until I back off the throttle
| and reduce the pressure.
|
| The day was rather cool and humid, the windows kept steaming up even
| with the vents open. Is this likely to be carb icing or does anyone with
| rather more experience than me have any other idea's?
|
| Richard Iddon. G-RIXS
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