Day 203, Engine emergency manual starter, pressure water pump replacement dry bilge pump timer installed.

 Engine

Manual starter 

Last steps of the manual starter installation.

In previous posts I showed how I built  new chain drive for manual starter. Due to I added coolant recalculation pump i was not able to use original parts for raw water version, fresh water engine version is very hard to source and also it will not fit my engine compartment. so, i designed  my own ;-)

New part added. Steel plate 8mm thick about 200x60mm. screwed to existing holes on the top of timing gears box, 2 pillow block bearings, shaft, bicycle 28 tooth sprocket and shaft hub.

Mechanism assembled for dry fit in the shop.

 When engine installed shaft (with pin) is hidden inside engine compartment.

Manual starter mechanism in place.

To get to starter shaft I drilled wall and installed block of HDPE plastic to provide extra support to handle adapter.

 

Little bit about handle.

Instead of building whole handle I made adapter which utilities standard sailboat winch handle. Two problems where solved:  how to make handy handle and how then store it.

Adapter made from the pipe which tight sit on the shaft from engine side. Then I ordered 3D printed adapter which has winch handle socket  on one side and cylinder coming in the adapter pipe on other. inserted adapter and weld connection over.

Winch handle adapter

 

 

 

Handle attached to engine

 

 Time to check if I can to start an engine.

Several observations of the manual start process. 

1. It is possible!!!!
2. it is pretty extensive effort, but doable by average fit man at age over 50 alone.
3. it is better to have second pair of hands to press compression release button. 
4. It take about 5 seconds  to start an engine manually ;-)

 

Yanmar 2QM20, manual start.

 

 Other small things I did on engine.

Raw water hose from pump to heat exchanger replaced with single piece hose. When installed i had two pieces of hose.

 

Installed temperature sensor in  raw water flow between heat exchanger and exhaust manafold to be able to check  and monitor heat exchanger efficiency. Sensor made from T connector. Just M8 nut was welded to short side and threaded DS18B20 sensor put in. 

 

 

Dry bilge pump

I designed controller for my "dry bilge" pump. It is built micro controller and provide simple timing functions. when breaker switch on, controller starts pump for 3 minutes (it is aproximetly time pump need to pump bulge dry after main centrifugal pump). after 3 minutes it stops and start counting 24 hours. It repeats 3 minute cycle every 24 hours if power left on.

 

I finally Installed the controller. (small gray box on the wall)

Pressure water

As soon as i want to have shower and fresh water toilet working normally it is time to upgrade 40 years old pressure water pump came. I replaced pump to 70PSI 7GPM one. 

Yes, little dirty there... it is 47 yeard old boat and at some places it is not shiny ;-)