Perkins 4.154 / Bosch VE Injector
I am trying to confirm what engine I have on my boat. The boat was home built in Canada, and I bought it from the second owner, who told me it was a Perkins 4.108. From looking at the 4.108 manual it is clearly not. I now believe it is a marinised Mazda T2500, or possibly a 4.154 for the following reasons.
The fresh water pump is the same as the diagram for a Westerbeke W58 which is I believe based on a 4.154.
The side of the engine is marked XA, but I can not find an engine number.
The Injector pump is a Diesel KIKI, and looks the same as a Bosch VE.
One thing that concerns me is the amount of diesel that is pumped back into the tank. A pipe is connected with a Banjo fitting to the pump with an "Overflow Restriction" bolt. This pipe then leads back to the tank, and when the engine is turned on (even before starting up) the electric pump continuosly ticks and pumps diesel through this back to the tank, about 2 litres in 5 minutes. In the diagram I have for a VE pump, there should be a Pressure Control Valve, but mine does not appear to have one, merely the fuel supply line attached with a banjo fiiting. Does anyone know if this is the correct setup.
I found most of this information via this forum, so thanks in advance for the very useful posts.
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