Hi All,

New to the forum but not to boats! I have a 40’ catamaran built in 1998 with the original VP MD2020B 19hp engines. Apart from the odd drip here and there they run flawlessly, but one of the fuel injection pumps has developed a significant leak recently. The fuel pump Part # for this engine appears to be 3580263 (picture attached) and the leak appears to be coming from where Part #3 screws into the pump body.



My question is two fold:

Is it a simple enough task to rebuild this part of the pump with new O rings/washers to solve the issue, and if so which part numbers are required for the job?

Should I decide to replace the entire injection pump rather than rebuild, is it a simple plug and play operation or does the new pump need to be set up timing wise to match the existing engine?



My boat is currently in the Bahamas whilst I am home for the Summer so I am hoping to purchase the relevant parts here in the UK so they can be fitted by the boat yard mechanics when I return!



Thanks all!

 

you are trying to guess at the needed parts before taking it apart. Knowing VP part prices, I would guess the cost for the entire injector pump will be very high.

I would try and find a VP dealer in the Bahamas and have them do the repair. They have the best chance of getting parts in a reasonable amount of time. And skills to do a proper diagnosis.

 

I did consider removing the pump and bringing it back to the UK to be rebuilt here - any advice on where I might be able to get this done?