April 4, 200521 yr well, after fusing my battery into a solid piece of lead by running with my alt pumping out 17-18V for too long, I put in a very new looking XT6 alternator. and a different battery of course runs and charges fine... but.... If I count my "devices" as follows: headlights rad fans off-road lights: outer top set off-road lights: inner top set H3 amber fogs (from a Mercedes) if I have over 2 of the above "devices" running at the same time, the alt starts to squeal. shut them off so there's just 2, and the squeal goes away... is this squeal the SOD for the alt?
April 4, 200521 yr Time to go bigger Mick. Thats the sound over heavy loading.. Too much time doing that and you can kiss another alt goodbye. PS.. I'm sure of course you check belt tension already:-p
April 4, 200521 yr PS.. I'm sure of course you check belt tension already:-p lol, I was just covering the obvious so the wiser could come in make a technical analysis :-p
April 4, 200521 yr I'd have to agree with calebz; higher output ALT .... or less lights? Maybe you could force the lights to use battery power isolated off your main power circut when they are one. Then switch the battery back online after you are done with the lights to recharge it. You'd be pulling mad amp draw from a battery and not your alternator.
April 4, 200521 yr Author I'd have to agree with calebz; higher output ALT .... or less lights? Maybe you could force the lights to use battery power isolated off your main power circut when they are one. Then switch the battery back online after you are done with the lights to recharge it. You'd be pulling mad amp draw from a battery and not your alternator. interesting thought there... I am powering these off my second battery... right now my isolator solenoid is switch on the IGN, but I could change it to have a manual over-ride too. I have a 150 amp waiting in the wings, plus a 200 amp isolator.. just waiting for the impending engine install to do them.... there's an auto-electric guy just around the corner from my house... I should see what kind of a deal he can get me on group XT6 alt rebuilds I think I have 3 dead ones laying around now, plus a dead 135 amp too.... and yes, it's definitely not belt whine..... :-\
April 4, 200521 yr If you take the car to the tech I would have him check the current draw for each of the light systems you have and make list so you will have a reference to go by for the extra loads. He should have a amp clamp to do that.
April 4, 200521 yr Author see the center top ones in this pic... http://www.ultimatesubaru.org/photos/showphoto.php?photo=1216&size=big&sort=1&cat=539 they are KC 6" x 9". I have 4 of 'em on top now http://www.kclights.com/matrix_69_series.html they do light up the night....
April 9, 200520 yr Author I threw another xt6 alt in, and all is fine now...with all the lights on and the fan on, it drops to about 12.4-12.6V without anything running it's at about 14.5V. so now I've got 3 dead xt6 alts sitting in my garage... this last one was so "new" looking too.....
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