Alternator Kaput.!!!

[Kitimat]

The alternator on my ford 351[233HP] doesnt work, it was only a 42 amp..with dual batteries,I would like to install a bigger alternator to run an invertor [1750w]what size alternator would you recomend? also what is the difference between a marine alternator and an automotive alternator ?.<br />Thanks for any assistance.

 

[loadnet]

Re: Alternator Kaput.!!!

I'd go with a 70 to 80 amp. <br /><br />Marine alternators are constructed in a manner which makes them spark proof (safe) thus, saving one's butt from going airborne at start up with fishing pole and tackle box, and cold beer 'still in hand' <br /><br />Hope this helps you out some.

 

[rino]

Re: Alternator Kaput.!!!

If you're charging two batteries 60-80 amps is a good range.<br /><br />Keep in mind that 1750W inverter will draw 145 amps from the battery at full load. If you just use it for a short period of time like to microwave your food, that's fine but if you hook up a large continuous load you'll have a serious battery drain.<br /><br />I.e. a 1200 watt electric heater, a microwave, small air conditioner, or a stove drawing 10 amps at 120 volts will pull 145 amps at 12V.<br /><br />Also, have you resolved your propeller issue?<br /><br />I have a Reinell C26 with a 190 HP Ford 302 that's only getting 15 mph on a 15-pitch prop.<br /><br />It looks like we might have the same problem.

 

[dkwalker]

Re: Alternator Kaput.!!!

check ebay for your replacement alternator. I got a delco single wire for under $100 -including shipping. you'll find all brands there... most are remanufactured. Some folks will warn you off reman's but I've used em on my cars w/never a problem.