BRE Fabrications LTD
Well-Known Member
Hey guys,
Ran into an odd issue whilst out in the 80 yesterday. The volt gauge on the dash started bouncing up to the thin line just under the 18v line. The red charge light came on too. The bounce coincided with me hitting around 1800-2000rpm.
I figure the voltage regulator on the alternator has died.
The alternator I have in the 80 is a remanufactured High out put unit (170amp). Its been in the truck for a few years now without any issue. But when I ordered it (from the US) the voltage reg on the new unit was damaged so I swapped over the one from my duff OEM alternator.
Would this potentially have been an issue with it being a higher output alternator?
With regards to the volt garage on the dash, when you are driving should the needle be fairly stable or is it normal for them to lift and drop with the revs, as mine has done for years? I am wondering of this was a sign it was on its way out...
Lastly, when this happened I still had an hours drive home, mostly in traffic so I was able to keep the revs below 2000rpm most of the way. When I did eventually get home I checked the battery which was very hot, don't have a multimeter at home so couldn't check voltage. I went out to see if the truck would start this morning and nothing. I couldn't even get it to turn over.
I have no doubt cooked the battery (Numax 249H). Is there any hope of rescuing it?
Ran into an odd issue whilst out in the 80 yesterday. The volt gauge on the dash started bouncing up to the thin line just under the 18v line. The red charge light came on too. The bounce coincided with me hitting around 1800-2000rpm.
I figure the voltage regulator on the alternator has died.
The alternator I have in the 80 is a remanufactured High out put unit (170amp). Its been in the truck for a few years now without any issue. But when I ordered it (from the US) the voltage reg on the new unit was damaged so I swapped over the one from my duff OEM alternator.
Would this potentially have been an issue with it being a higher output alternator?
With regards to the volt garage on the dash, when you are driving should the needle be fairly stable or is it normal for them to lift and drop with the revs, as mine has done for years? I am wondering of this was a sign it was on its way out...
Lastly, when this happened I still had an hours drive home, mostly in traffic so I was able to keep the revs below 2000rpm most of the way. When I did eventually get home I checked the battery which was very hot, don't have a multimeter at home so couldn't check voltage. I went out to see if the truck would start this morning and nothing. I couldn't even get it to turn over.
I have no doubt cooked the battery (Numax 249H). Is there any hope of rescuing it?