Cat 3126 Water Pump Belt Adjustment

The water pump belt was a direct replacement.

Cat 3126 water pump belt adjustment.

This video describes and shows how to change a c7 3126 and c9 engine water pump. I need to tighten the water pump belt on a cat 3126 engine. Slightly loosen mounting bolts 1 and adjusting. No magic answers just keep track of all the bolts washers and spacers.

Procedure to adjust the belt tension. Do i have to tear the whole answered by a verified technician. 1 position belt tensioner 1 on the cylinder block. 2 remove bolt 2 and belt tensioner 1.

Use a breaker bar to release tension on belt tensioner 1. I need to tighten the water pump belt on a cat 3126 engine. Adjust the belt tension with a. Alternator belt loosens with alternator.

Remove the drive belt. If a new belt is installed check the belt adjustment again after 30 minutes of engine operation at rated speed. A serpintine read more. 2 install the drive belt.

Do i have to tear the whole front end apart to get to them. Slightly loosen mounting bolt 1 and adjusting bolt 3. These pumps are not hard to change but there are a few things to watch fo. I don t know about the fan hub access in the 3126 but the one in my c 7 is held on with about 4 or 6 flat head allen drive screws.

Try to align tach drive to crank centerline when reinstalling. Water pump belt has a tensioner that can be released with two bolts. I can t see the bolts to adjust. Water pump belt illustration 17 g00426869 exploded view of the drive assembly for a water pump belt 1 mounting bolt 2 square hole 3 adjusting bolt 1.

I can t see the bolts to adjust. Install bolt 2. The serpentine belt that was a napa and although about 3 8 inch shorter it worked just fine since it was the replacement one in a crossover. Caterpillar 2020 all rights reserved.

Number one pita for changing belts especially if belt guards and tach drive are installed. The belt only runs the water pump. Safety cat com 3116 and 3126 marine engines maintenance intervals. Exploded view of a water pump belt drive assembly.