Data of a 140a Alternator with a smaller overdrive pulley
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Thanks for another view count!
First, you may not need it. The 6.0 need is because of the initial load of the glow plugs and the overall health of the FICM. The gas van should only matter if you are running a lot of accessories. But the other issue is the gas motor will govern out at a higher rpm. So if you run it wide open on a steep grade or for passing, the overdrive pulley has the potential of spinning the alternator above it's designed top speed. Sort of. A good engineer would give it a 25% factor.
You going to have to monitor your voltage and see how it does. Then the decision for an overdrive pulley or larger alternator.
First, you may not need it. The 6.0 need is because of the initial load of the glow plugs and the overall health of the FICM. The gas van should only matter if you are running a lot of accessories. But the other issue is the gas motor will govern out at a higher rpm. So if you run it wide open on a steep grade or for passing, the overdrive pulley has the potential of spinning the alternator above it's designed top speed. Sort of. A good engineer would give it a 25% factor.
You going to have to monitor your voltage and see how it does. Then the decision for an overdrive pulley or larger alternator.
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#8
Thanks for another view count!
First, you may not need it. The 6.0 need is because of the initial load of the glow plugs and the overall health of the FICM. The gas van should only matter if you are running a lot of accessories. But the other issue is the gas motor will govern out at a higher rpm. So if you run it wide open on a steep grade or for passing, the overdrive pulley has the potential of spinning the alternator above it's designed top speed. Sort of. A good engineer would give it a 25% factor.
You going to have to monitor your voltage and see how it does. Then the decision for an overdrive pulley or larger alternator.
First, you may not need it. The 6.0 need is because of the initial load of the glow plugs and the overall health of the FICM. The gas van should only matter if you are running a lot of accessories. But the other issue is the gas motor will govern out at a higher rpm. So if you run it wide open on a steep grade or for passing, the overdrive pulley has the potential of spinning the alternator above it's designed top speed. Sort of. A good engineer would give it a 25% factor.
You going to have to monitor your voltage and see how it does. Then the decision for an overdrive pulley or larger alternator.
BTW, I forgot to torque the pulley bolt on the alternator! I gave it one blast with my Milwaukee drill driver (not true impact wrench). Do I give the nut a few hits with my Milwaukee impact tool? I can remove the alternator is 10 minutes. The failed alternator had a lock washer. I was thinking of replacing it with a flat washer as I don't know the quality of the lock washer and believe most are more of a marketing gimmick.
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jamnjm
1968-Present E-Series Van/Cutaway/Chassis
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04-01-2012 04:10 PM