Engine Test Start

As shown in my previous post, I put a lot of work into my Yanmar 2GM. Here's a clip of me testing the engine in the house garage. Once I got it going, I went through 4 or 5 buckets of water. I was having fun running the engine for the first time since taking it all apart. The engine was shaking so much that it was trying to walk across the garage so I had to stand on the support I made trying to keep it in place. I had the water strainer from the boat in line because it just happened to have the right hoses for the water pump to run cooling water. Vice grips was used for throttle to keep the RPMs up.

Here's what I did to the engine:

• new head gasket
• new thermostat housing gasket
• new thermostat
• new temperature sender
• new rear zinc cover gasket
• new.... lots of copper gaskets
• new exhaust mixer
• new steel fuel lines
• new steel oil line
• cleaned up the valves with lapping compound
• auto shop did a hot cleaning and milled / smoothed the valves side of the head
• new rear zinc w/packing (packing didn't seem to be used before)
• new cooling hoses
• new fuel filter
• new fuel pump
• painting with VHT engine primer and paint
• cleaned out layers of rust from the exhaust port
• cleaned out built up carbon from exhaust valves (pretty much clogged)
• new valve stem seals
• JB weld the exhaust port to smooth out the surface for the new exhaust mixer/gasket
• cleaned out clogged cooling passages (mineral buildup and lots of debris)
• replaced both pistons after finding one had a crack
• cleaned out the oil pan
• replaced oil pan gasket
• cleaned surface rust around the block
• cleaned up most of the rust from the flywheel

And gave it a lot of time and patience it desperately deserved.