What is maximum that discharge water should be for a gasoline Kohler marine generator 7.5

Jack' Small Engines, or the maker.

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Parts and Service Landing ' Kohler Power

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  Parts ' Kohler Marine

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  GENUINE PARTS AND ACCESSORIES. Rest assured, KOHLER genuine parts are built specifically for your marine generator - and are available when you need them.

Kohler Generator Parts

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Kohler generator repair parts. Complete parts listing.

maybe this what you wanted you , Service Kit Kohler Marine Generator Models 4EF 5E 6EF 7.3E
Maintenance Service Kit Kohler Marine Generator Models 4EF 5E 6EF 7 3E

The Kohler 7.5 R had a possible three different voltage regulators that could be used.
You need to check there first. Also if you can get it the service manual for these are tp-5110 Which will show you how to test the regulator o the bench. There was a 5 6 and 7 pin regulator that could have been used.

what are the fault indicators showing, over voltage, frequency wrong charging fault ?

if it bolts to engine side, looking at it , gas suction in on right ,discharge is on left ,

Contact Nixon Power Services in TN, they should be able to help you

It sound slike water impeller is not giving enough flow to the heat exchanger

I have a kohler marine generator that shuts down when it reaches operating temp of 200/210 degrees. It runs for about 5 minutes. Already replaced impella and have sea water pumping through, coolant level is good. Any suggestions? Thanks

Valve seats, valve integrity, intake seals. Perform a leakdown test to further diagnose

Can't search for a manual without model, type, serial, etc numbers...

A few things to take a look at:

1) Oil level / pressure sending unit. This is normally bypassed as long as the start switch is pressed. When engine starts, and switch is released, engine will die if sending unit is defective, or you are low on oil.

2) Exhaust temperature sensors. Older units were notorious for burning these up.

3) Cooling Water Temperature sensor. These cause trouble often, but mostly due to water pump impeller being eaten away by galvanic action and not able to pump water as effecively. End result is water temp higher than normal, which trips the switch, which kills the engine.

4) Alternator (generator) output not as it should. If output doesn't rise to proper level within a few seconds of engine start, the engine will be shut down.

5) Choke not working as it should

6) Bad fuel, bad fuel pump, clogged fuel filter.