09-20-2015, 10:54 PM
(This post was last modified: 09-20-2015, 10:57 PM by broncosbybart.)
Got the front dress figured out. The stock alternator was rated at a pitiful 65A. Found a 120A replacement and decided to order it. The new alt is a Chinese unit, so I'm sure it will be short-lived. A genuine Bosch unit was north of $300, closer to $400!
Since I won't be running the mechanical fan, I wanted to try and eliminate the pulley and bracket for the fan. The water pump and alternator are the only things needed. After doing some head scratching, here is what I came up with.
The pic with the long belt is the original belt. The new one needed to be a good bit shorter. I had to drill a new hole for the tensioner to clock it some from the original mounting position. The original tensioner pulley was smooth but needed to be ribbed. Found a new/open box replacement assembly with a ribbed pulley on ebay for a good price. After a couple guesses, I found that a 49.5" belt works perfectly. I think that this mod will work well. Time will tell. Less is better, IMHO.
Still have to paint the bracket and tensioner arm. The paint on them is the original cummins paint- which has held up pretty well
Since I won't be running the mechanical fan, I wanted to try and eliminate the pulley and bracket for the fan. The water pump and alternator are the only things needed. After doing some head scratching, here is what I came up with.
The pic with the long belt is the original belt. The new one needed to be a good bit shorter. I had to drill a new hole for the tensioner to clock it some from the original mounting position. The original tensioner pulley was smooth but needed to be ribbed. Found a new/open box replacement assembly with a ribbed pulley on ebay for a good price. After a couple guesses, I found that a 49.5" belt works perfectly. I think that this mod will work well. Time will tell. Less is better, IMHO.
Still have to paint the bracket and tensioner arm. The paint on them is the original cummins paint- which has held up pretty well