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Re: could someone tell me how to remove the fan clutch on...
Leave the belt on, and put a screwdriver or other flat metal object across two of the bolt heads that are sticking out on the pulley to hold back. Make sure that you have sprayed the nut and threads with penetrating oil and let sit for five minutes before attempting. You may have to bump the wrench with a hammer while you are holding the pulley back with the other hand. The only other way is to use a really large pair of channel locks to hold back the pulley. The channel lock brand sells a plier called the "Big Azz". I suppose a large pipe wrench would do also if you could fit it in there.
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TO REPLACE WATER PUMP.REMOVE THE RADIATOR SHROUD HALVES.REMOVE FAN CLUTCH AND FAN.YOU NEED FAN CLUTCH WRENCH AND A FAN CLUTCH PULLEY HOLDER.YOU CAN RENT TOOLS AT AUTO ZONE OR BUY THEM AT A AUTO PARTS STORE.THE FAN CLUTCH BOLTS ARE LEFT HAND THREAD. REMOVE THEM BY TURNING CLOCKWISE.BEFORE INSTALLING NEW WATER PUMP COAT BOTH SIDES OF WATER PUMP GASKET WITH GASKET SEALER.TORQUE WATER PUMP BOLTS 18 FT LBS.
You have to hold the belt pulley to prevent it from turning, then unscrew the fan clutch by using a wrench or big channel locks on the part of the clutch nearest the pulley. On your Ram it should be a standard( not left handed) thread. You might have to put the old water pump in a vise to hold it while unscrewing the clutch. When you put the clutch back on you just need to snug it up on the water pump, the pump is a reverse rotation so the clutch will not unscrew itself.
Pretty easy for average mech. first drain coolant by loosening the
lower radiator hose. Make sure to have a drain pan. remove the power
steering belt by removing the bolts to the idler pulley. and let belt
off the pulley.remove the alternator upper bracket. and remove belt. Take fan shroud off with two 8mm bolts on top oe it. You cant remove
untill you remove the clutch fan assembly. It is left handed thread. It has
to be removed together. Remove the four bolts to the pulley on front of
water pump. and then remove all 14mm bolts around the pump. Then remove
8mm bolts and it will be able to come off. assemble in reverse order!
If it is the type I am thinking about... (a hexigon shaft coming from the waterpump pulley attatching it to the fan surrounded by 4 bolts that hold the pully to the waterpump) with this design you usuially need a clutch fan removal tool. basicly a very flat wrench and a y shaped "holding" tool (this tool basicly grips the waterpump pulley by 2 of its bolts or 2 holes in some models and you use it against the force of the wrench to crack the two loose) basicly the hex shaft is partially hollow and has a thread on the inside it attaches to a short threaded part that pertrudes from the pulley mount when it comes off expect to catch the fan and hex shaft. be careful not to attempt this without either isolating the pully from the serpintine belt or otherwise ensuring that you arent going to turn the engine over manually if you slip. also in some similar models the hex shaft may be a left handed thread. in many cases some auto supply stores may lend you specialty tools (or rent them) with a small deposit, a gm dealer can tell you if that particular model and year will thread left or right.... hope this helps
the four bolts holding the fan clutch to the water pump pulley are loosened counter clockwise. If you don't have a pulley holding tool at hand, use a wrench(closed end side) as a locking leverage on the studs(do not place the wrench on the nuts) while loosening the nuts 1 by 1 with another wrench. When reinstalling use the same method, but place black elec tape over the studs(prevent thread damage) after you hand tighten the bolts for the fan clutch. hopefully this helps
1)Drain the coolant: 2)Remove the shroud: 7-10 mm bolts 3)Remove the fan and clutch: There is no need to separate the fan from the clutch. The whole thing threads on to the end of the water pump. I don't know the size, because rather than break out all my wrenches, I just grabbed an 18 inch crescent wrench. Place the wrench on the nut and tap loose with a hammer. the tapping will break it loose. You have to tap it, if you just try to loosen it, the belt won't hold it and the whole thing will turn. After it breaks loose just spin it off. 4)Break loose the bolts holding the pulley on: 4- 13 mm or 1/2" bolts Just break them loose, don't remove them 5) Remove the serpentine belt 6) Remove the pulley: Finish removing the bolts holding the pulley and remove the pulley 7) Disconnect the hoses 8) Remove the old pump: 4-14 mm or 9/16" bolts 9) Clean the surface: Remove all traces of the old gasket. 10) Install new pump: Apply a bead of blue permatex around the holes on both sides of the gaskets, put them on the pump and insert the bolts through the holes to hold the gaskets in place. Carefully lower the pump in to position. Thread the bolts into the block and snug them. Then remove the bolts one at a time, add the permatex to the threads, and then reinsert. (only do one at a time so that the pump doesn't shift and disturb the mating surfaces) Then tighten all the bolts. 11) Reinstall everything in reverse. There will be a lot of air trapped in the system, so after you fill it, get the engine to operating temperature, shut it off, let it cool, then add more. The air trapped in the system can cause your engine to over heat if left unattended. I suggest filling the system with water only and run it like that for a day or two just to make sure there are no leaks. That way you don't waste your antifreeze if you have to do further repairs. Good luck and hope this helps.
The fan/clutch assy has left hand thread. Loosen by turning clockwise.
Remove radiator top shroud & air cleaner assy. to gain access.
Remove engine cooling fan by holding the belt drive pulley with a suitable flat bar tool (that fits over the top of the drive pulley attachment bolts), then using a suitable flat spanner to unscrew the fan clutch assy (clockwise). When re-fitting, tighten clutch nut to 30 ftlb.
You may need to use a bit of ingenuity in making the flat bar holding tool, unless you are able to procure the BMW tool #11.5.030.
SPECIAL SERVICE TOOL(S) REQUIRED
Fan Clutch Holding Tool
Fan Clutch Nut Wrench
CAUTION: The large clutch assembly nut has a right-hand thread and must be rotated counterclockwise to remove it.
Remove the fan clutch (8A616) from the water pump (8501) by turning the large nut, which is part of the fan clutch, using Fan Clutch Holding Tool T84T-6312-C and Fan Clutch Nut Wrench T93T-6312-B.
Remove two screws retaining fan shroud.
Remove the fan blade (8600), fan clutch and shroud.
If the fan blade and fan clutch have to be separated, remove the remaining bolts attaching the fan blade to the fan clutch
5.0L, 5.8L and 7.5L Engines Removal
Remove screws retaining fan shroud (8146) to radiator (8005).
Remove four screws retaining clutch on water pump hub.
Pull fan clutch and fan blade off water pump pilot and remove fan clutch, fan blade and shroud from vehicle.
Remove four screws and separate fan clutch from fan blade.
Water Pump Pulley
Screw and Washer Assembly, 5/16-18 x .62 Hex
Fan Blade (5.0 and 5.8L)
Fan Blade (7.5L)
Screw and Washer Assembly, 5/16-24 x .88 Hex
16-24 Nm (12-18 Lb-Ft)
Put a prybar between 2 of the small fan bolts. Have someone hold the prybar, or rest it on the frame if it is long enough.Then turn the big nut on the fan to the left.It will be VERY tight. If that doesn't work, you can probably rent the fan removal tools from your local parts store.