Alternator altering
- Thread starter Maina
- Start date
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reddog90
SILVER Star
Does anyone know what load a reman 80 amp 3fe alternator can handle?
I'm trying to determine if I can run a 50A fused 6GA line from my battery to the drivers compartment of the truck to charge a goal zero yeti that would sit in the back of the vehicle. Will I burn the alternator out prematurely doing this?
I'm trying to determine if I can run a 50A fused 6GA line from my battery to the drivers compartment of the truck to charge a goal zero yeti that would sit in the back of the vehicle. Will I burn the alternator out prematurely doing this?
reddog90
SILVER Star
Theoretically the yeti I am looking at should power the fridge a little over 2 days on a full charge. I generally drive each day on a wheeling trip. So the alternator would be topping off the yeti from the fridge's demand overnight. And these trips are few and far between in my current season of life.
And he's right. Pushing its current limit for long periods will overheat the rectifier diodes and cause them to fail, and in many cases will take the voltage regulator with it. If you know how to change them it usually isn't difficult to do (done it on my 120A several times until I sourced good Denso parts), but it's still a chore regardless.
Hey y'all, poppin' in to follow up on the swapping of the FJ60 alternator fan onto the FJ62/80 alternator. Have a rebuilt FJ62 alt and my old fan from my FJ60 alt and was recommended not to do the fan swap. Has anyone who swapped fans had any issues at all after running that set-up for awhile? Seems like an easier route than grinding, welding, or cutting but I'm new to auto electrical and don't want to fry my newly rebuilt alt. Thanks for sharing your experience with the fan swap in advance!
Photo of FJ62 alt (80-90amp) fan in hand (on left) and FJ60 alt (55-60amp) fan placed on FJ62 alt
Thanks for the quick reply. It is slightly smaller but it brings air in the same direction. Size difference might be key here?
Alternator altering
Since this seems to be the main thread on this conversion, I will add my data point. Rock auto came through with a Denso 80 amp alternator, pulled the plug off a 1991 Toyota pickup at the junk yard. Then came the fun part. Extended the tensioner bracket 3" hole to hole. Also pulled the double...
forum.ih8mud.com
7 years later no issues with the trimmed fan blades.
