Hard cranking - hot
in 912 / 914 Technical Questions
13 years ago
I have a 912 ULS Serial #5645194 on a Dragonfly towing hang gliders. After turning off the engine, if restarted immediately, the engine turns over fine and starts right up. If any time elapses, like a minute or two.. or ten, the starter will not turn over the engine. It engages, and will sometimes move the prop a couple inches, but that's it. We then have to turn over the engine with the prop by hand, and sometimes only a couple blades will allow the starter to do it's job. Sometimes it takes enough turns that I get tired and another guy turns until it goes.... or we wait until it really cools down and it again starts just fine.
Jumping the batteries makes no difference.
The engine turns over about twice as hard hot as cold. The guys from LEAF claim it can't be tight pistons caused by cylinder cooling as the pistons and cylinders are the same material.
I hate to pay the $300 for a new starter if it's going to act the same.
It does have the newer heavy duty starter.
Got any ideas?
Danny
Jumping the batteries makes no difference.
The engine turns over about twice as hard hot as cold. The guys from LEAF claim it can't be tight pistons caused by cylinder cooling as the pistons and cylinders are the same material.
I hate to pay the $300 for a new starter if it's going to act the same.
It does have the newer heavy duty starter.
Got any ideas?
Danny
