I've got a single
cylinder, 8hp Yanmar
that has started the first time, every time, until now.
When the starter engages, the engine
turns, while making a horrible screeching sound, but does not turn over.
Here's what I know and thought of to check so far:
- The starter is new, is fully powered and turns the engine
- the batteries are at full strength
- the air intake is clear
- fuel pump
was tested and works properly
- unable to budge the engine with the hand crank - even when standing on the crank handle
- manual compression
release lever is frozen closed and broke off when I tried to pry it open
My guess is that I'm looking at a compression
issue, but have no idea of where to go from here. Any thoughts or suggestions?