Question about Dodge Ram 3500
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Posted on Jan 02, 2017
well if i remember correctly that fan clutch is reverse threads so in other words to loosen it you'll have to turn your wrench clockwise. they do this cuz the rotation of the fan will tighten itself onto the water pump. anyway what i do is leave the serpentine belt on the the pulleys and that will kinda hold them steady whilst you put the "special" wrench on the clutch and pop it loose you'll prolly need a cheater bar to make things easier but not too much or you'll overcome the traction of the belt and it will just slip.
Posted on Aug 18, 2008
There is a special spanner wrench that you need to hold onto the water pump pulley (the 2 holes in the big pulley the belt rides on).
The tool has a Y shape to it with a handle coming off the bottom end of the Y. There will be 2 pins in the ends of the V that fit into the holes on the pulley (adjustable). You put the pins into the holes, grab the handle with the left hand, and put a 15 inch cresent wrench in the right hand onto the clutch nut. Pull up on the Y shaped tool handle with the pins, push down on the wrench to the left (counter clockwise) to un-screw the clutch from the pulley.
Then take the clutch off the fan after you have it out of the truck.
LEAVE THE BELT ON UNTIL YOU GET THE PULLEY LOOSE!!!
THEN, take the belt off, then the pulley/clutch asembly off, then the water pump (replace with a NEW - NOT REBUILT PUMP).
The new only costs 20 bucks or so more, and it is worth the headache of paying more while you have it apart. If the clutch is shot, the pump is close behind because of the vibrations ruins the seals/bearings on the pump, even though you cant hear the noise, it is there. Take the LOWER fan shroud completely off by removing the trans lines from the radiator. pull the fan out the BOTTOM of the Van. Leave the top shroud in place but take the screws out so you can manuever the lower shroud out. You also may have to remove the lower radiator hose and move it aside. Good time to change coolant anyway. And since you are in there on top, change the thermostat, while you are doing the cooling system service. Use a PREAMIUM BRAND thermostat, like a STANT, it will have a small vent hole with a valve in it hanging off the side edge of the thermostat that helps vent air from the system so it will not overheat. Trapped air can cause the cooling system to overheat, so dont put the thermostat in upside down! Point go's UP.
Posted on Feb 17, 2009
You can do this with wheels hanging free or on ramps. Likely it may be better with wheels hanging though.but do not let the gears turn while you are working. Use a pipe wrench (a large one) to hold the pinion flange from turning. Mark the position of the nut in relation to the pinion shaft this mark is extremely important so don't use anything that may be wiped clean when working. Count the exact number of turns necessary to remove the nut (also very important).Mark the flange position so you can return it to its original position. Tap the flange off with a hammer, etc, pry out the seal and drive the new one back in with an appropriate seal driver In a pinch you can use a 2x4 with a hole in the center for the shaft to go through...I generally wipe a small amount of silicone sealer around the metal part of the seal to prevent seepage as well. The key is to keep the seal square with the housing while installing.
Use the marks you made to put the flange back on. put the nut and washer back on, counting the exact number of turns till you reach the exact number as when you removed it. Though most times it's not necessary, I always use some locktite on threads or use a new nut but with new nut you loose your reference mark. Hold the flange with the pipe wrench while re-installing. I also turn the nut about a 32nd of an inch or less, further than it was before removal.This will change the pinion depth but not so much that it will damage anything. DO NOT go further though!!! Don't forget to re-fill before using. In fact it is good to remove the rear cover first because if you find any metal in the lube perhaps you may want to or need to do something else as a repair.
Posted on Sep 06, 2009
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