Getting my MASE generator running - a success story!

[mcanderson]

We have a MASE 5.0 generator fitted which has been a wonderful bit of kit, and very useful in an all electric boat. So I was mildly annoyed when it died. No warnings just slowed down and then cut out. Would crank fine, but that was it. Here is a write up of what I did to get it going again.

The base engine is a single cylinder Yanmar so I wasn’t going to be defeated by this and set to work bringing it back to life.

Firstly I downloaded the work shop manual from here - http://www.masenorthamerica.com/en/support/old-literature.html (Thanks Portofino!). It was pretty evident that with the engine having run fine, died and not will to restart that a fuel issue was the most likely cause, or the start relay.

So I followed the following methodology and it is humming away again and we have power away from the marina.

Changed the primary fuel filter. No impact.
Checked the fuel lines to the pump. No impact.
Checked the pump output nothing. At this stage I tested the start relay and it was working fine, so whilst the pump was making all the right noises it wasn’t actually pumping anything.
Ordered a new pump from a car spares place in Monaco (€55). The part shown in the manual is no longer made and has been replaced by the pierburg 7.21440.53 here is a link http://www.vehiclepartsdatabase.com...loon/18s/jn/1348/fuelpumps/pierburg/721440530
Fitted the new pump and and soon as power was applied to the pump a good flow of fuel commenced.
Refitted all the hoses and tightened everything up.
Started the generator and it fired up straight away. Since the new pump was fitted it hasn’t skipped a beat.

Having had a bit of a run of things not going to plan on the boat I was bloody happy to fix this myself.

 

[vas]

well done!

don't know if your 1cyl has the godawful diesel filter that my yanmar 2gm20 has, I had so many probs with it leaking (air in diesel out, you name it!) that I ripped it off and fitted a proper filter/water separator and I'm v.happy with it.
Still a tiny leak on the stop solenoid racor but have to take half the motor apart to gain good access, so I just crank 3 times to start it for now
Mine is a Mase 7 or something

cheers

V.

 

[mcanderson]

The primary is a Racor spin on that takes a R12P filter and it has a clear plastic bowl with a drain. Not a god awful tiny thing like I to had on my old sailing boats Yanmar 3YM20. A bastard to change.

 

[jimmy_the_builder]

We have a MASE 5.0 generator fitted which has been a wonderful bit of kit, and very useful in an all electric boat. So I was mildly annoyed when it died. No warnings just slowed down and then cut out. Would crank fine, but that was it. Here is a write up of what I did to get it going again. The base engine is a single cylinder Yanmar so I wasn’t going to be defeated by this and set to work bringing it back to life. Firstly I downloaded the work shop manual from here - http://www.masenorthamerica.com/en/support/old-literature.html (Thanks Portofino!). It was pretty evident that with the engine having run fine, died and not will to restart that a fuel issue was the most likely cause, or the start relay. So I followed the following methodology and it is humming away again and we have power away from the marina. Changed the primary fuel filter. No impact. Checked the fuel lines to the pump. No impact.Checked the pump output nothing. At this stage I tested the start relay and it was working fine, so whilst the pump was making all the right noises it wasn’t actually pumping anything. Ordered a new pump from a car spares place in Monaco (€55). The part shown in the manual is no longer made and has been replaced by the pierburg 7.21440.53 here is a link http://www.vehiclepartsdatabase.com...loon/18s/jn/1348/fuelpumps/pierburg/721440530Fitted the new pump and and soon as power was applied to the pump a good flow of fuel commenced. Refitted all the hoses and tightened everything up. Started the generator and it fired up straight away. Since the new pump was fitted it hasn’t skipped a beat.Having had a bit of a run of things not going to plan on the boat I was bloody happy to fix this myself.

Good job! Well done for remaining relentlessly upbeat in the face of a series of boat ownership 'challenges' this summer.

 

[Assassin]

Excellent news, logical working on a diagnosis, finding the fault, then a viable solution.