Mike90045 The hose in the pic was for a temp cooling it is now connected with a radator
12 volt hydraulic pump runs a hydraulic cylinder and a hydraulic motor
yes it will crank over the compression
special made pump (SPI I think), Witt hydraulic motor, Surplus Center cylinder,16.5 " tire, a log splitter controll valve plumbed backwards and the drain back to tank connected the hyd. motor.
When the cylinder extends,putting the pressure on the tire and flywheel the controll lever returns to center position and the tire stays engaged with the flywheel. After the engin starts I move the lever the other way and the cylinder retracts keeping the tire turning while retracting away from the flywheel.
I have been using this system for 4 years now no problems.
Rember I have a 16/1 which has alot of compression. I started this engin by hand a total of 3 times and it was a real bear to get over the compression stroke. 1 time it threw me down to the floor because the 1 way dog was still engaged. That is with 2 hands on the handle ,wide foot stance and my wife moving the exhaust lever. After that I made the hydraulic starter.