What's this crank?

[Nicholson58]

Many years ago we had a 2- cylinder diesel Perkins with a hand crank. There was a manual compression release to make it easy to turn. If you have a release it may also engage the crank.

[Pete7]

Originally Posted by n5ama

I would have never believed you could start a diesel engine (even a small one) with a hand crank. Compression firing requires very high pressure in the combustion chamber and pulling through that compression stroke is tough.

Have a great week,

How about a tank?

https://www.youtube.com/watch?v=kqQe...channel=TEKNIQ

[skipperpete]

Originally Posted by Fintry

Some Yanmars have a compression release, so you can release pressure on one or more cylinders and get the thing spinning, then shut the valve and hope. I've never had a Yanmar with one, but the 60hp Gardner we put in Fintry to run the hydraulics had one for each cylinder.


Jim

Even the 250 hp 8 cylinder 8L3B Gardner could be hand started with the option of one man at each end of the engine. My first boat had a LW series Gardner with a hand crank, the one and only time I ever hand started that engine, it kicked back and I ended up in Ballina hospital getting my face and lip stitched back up (and drinking beer through a straw for 10 days). I could start that engine under sail by putting it in gear, engaging the decomp levers and changing the pitch on the Hündested propeller till it started to turn,then dropping one decomp lever at a time..... 4 or 5 knots under sail would do it.