Westerbeke generator suddenly can't handle the AC

TracyT

New Member
Jun 14, 2016
44
Middle River Md
Boat Info
1988 Sea Ray 305
Engines
Twin 5.7L mercruiser inboards
This weekend my Westerbeke Gas genset suddenly died when the AC load hit it. It repeated this multiple times. Runs fine and can carry smaller loads without cutting out. Anybody got any idea where to start looking?

Also need suggestions for good mechanics in Middle River MD?
Both Westerbeke and 5.7 Mercruiser:huh:
 
What is the output voltage at no load and light load? Use a digital volt meter in an outlet and not the analog gauge on the panel. Maybe the governor needs adjusting or maybe the oil level is low in the governor.
 
What is the output voltage at no load and light load? Use a digital volt meter in an outlet and not the analog gauge on the panel. Maybe the governor needs adjusting or maybe the oil level is low in the governor.
Thank you fo the advice I will check it this afternoon as I have to install another bilge pump anyway
 
How would I go about checking the amps AC start load. BTW the AC starts and runs perfect on shore power
 
Use a clamp on ammeter. Checking wiring feeding to the ac compressor. The technique may vary a bit with different voltage compressors. Typical starting amps will be somewhere in the run load amps x 5 to run load amps x 7. Running amps may be marked RLA or more likely FLA for full load amps.


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Use a clamp on ammeter. Checking wiring feeding to the ac compressor. The technique may vary a bit with different voltage compressors. Typical starting amps will be somewhere in the run load amps x 5 to run load amps x 7. Running amps may be marked RLA or more likely FLA for full load amps.


Sent from my iPad using Tapatalk

thank you I will try to get this test run, just need to get a clamp for my meter
 
Ok it sorta fixed itself or maybe I am just loading it more slowly and turning some stuff off when time to run AC. Found low on coolant too!:grin:
 

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