Posted By: RM23U0A
99 Dakota 5.2 remove clutch fan from water pump - 09/22/13 02:25 PM
I have never seen this set up; only worked on older types. Need advise please and thanks Wayne
99 Dakota 5.2 remove clutch fan from water pump
Posted By: buildanother
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/22/13 02:49 PM
That large hex is part of the fan and has to be screwed off of pump first. There are tools sold to get it done, but it usually can be knocked loose with a long punch or chisel. Right hand thread I believe. 
Posted By: RM23U0A
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/22/13 03:15 PM
Thanks buildanother. I have the waterpump with the clutch and fan on the concrete and just found that a 1 7/16 end wrench will fit the hex shaft. If I understand you, I will put the 4 fan bolts back in and see if it will loosen. I`ll let you know. Thanks and God bless you, Wayne
Posted By: RM23U0A
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/22/13 04:55 PM
It is apart! The hex nut is made on to the fan clutch; so what I did was use the 17/16 wrench and put a pipe wrench on the impellers. No other option that I could see. It is designed to be tightened or loosened with the belt holding it. No trade in of used water pump this time, the impellers are bent; but I am very glad to get it apart. Thanks Wayne
Posted By: hooziewhatsit
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/22/13 05:19 PM
I think there should be 4 holes in the face of the waterpump? I built a spanner wrench to hold it while I removed the fan. The belt alone wasn't enough to hold it.
Posted By: 70Cuda383
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/22/13 10:47 PM
Quote:
I think there should be 4 holes in the face of the waterpump? I built a spanner wrench to hold it while I removed the fan. The belt alone wasn't enough to hold it.
Yup. Exactly. Dodge has a special tool to hold the pulley as you take off the clutch/fan unit. But with a piece of bar stock, 2 bolts, and a drill, you can make a tool to hold the pulley while loosening the big nut on the fan clutch
Posted By: Ruppman
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/23/13 12:04 AM
I just did mine on my 5.2 1995 Dakota. Since the WP is going bye-bye anyway, I didn't care if it broke. all I did was take my biggest Craftsman screwdriver and pound it in to wedge it between the pulley and the WP housing. It then held the pulley tight so I could remove the nut with a large crescent wrench. And the old WP was fine for a core too.
mark
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Posted By: mopwrd340
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/23/13 02:10 AM
I just use a big cresent wrench or pipe wrench and just smack it with a hammer always breaks it loose , 
Posted By: RM23U0A
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/23/13 04:04 AM
Thanks everybody, Great ideas. The aluminum housing was not hurt, so they took it for a core after all. O`Reilly`s even gave me a 2% discount the salesman he is allowed to do that even though I do not have an account there. I guess that you just have to ask for it. Wayne
Posted By: therocks
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/23/13 11:37 AM
Man you do a lot of work.I did tons at the shop.My air chisel and a few bumps on a flat of the big nut and they always come loose.Takes me about 2 minutes to take one off.Just did the one on my kids 99 a month or so ago.Only ones you have to be careful of are the left hand threads.Had a guy destroy one at work because he didnt read the caution on the shroud.It was a diesel though.Once broke loose they spin right off.Same when installing.Just spin it on and give the flat a tap with the air chisel.Rocky
Posted By: hunterstroble
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/24/13 08:18 AM
Posted By: Grizzly
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/27/13 03:50 AM
While on the subject, my waterpump had to be replaced on my 360 Magnum 'cause the bearing was screwed. No wonder: that humongous fan on there leaning on a bearing not much bigger than your thumb didn't last very long.
Solution: ditched the fan, put a new water pump on and went to an electric fan. Fuel mileage went up and the water pump should last 5 times longer.
Hopefully last longer anyhow. Changing the water pump is a bit of a chore and would not like to have to do it again anytime soon.
Solution: ditched the fan, put a new water pump on and went to an electric fan. Fuel mileage went up and the water pump should last 5 times longer.
Hopefully last longer anyhow. Changing the water pump is a bit of a chore and would not like to have to do it again anytime soon.
Posted By: goldmember
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/27/13 05:58 AM
Quote:LOL ok changing the WP is a pain . I wish every job was a quick and painless.
While on the subject, my waterpump had to be replaced on my 360 Magnum 'cause the bearing was screwed. No wonder: that humongous fan on there leaning on a bearing not much bigger than your thumb didn't last very long.
Solution: ditched the fan, put a new water pump on and went to an electric fan. Fuel mileage went up and the water pump should last 5 times longer.
Hopefully last longer anyhow. Changing the water pump is a bit of a chore and would not like to have to do it again anytime soon.
My WP and clutch fan has 225,000 on it you think I should worry? If cannot take 30-40 minutes start to finish.
Posted By: Grizzly
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/28/13 03:45 AM
LOL ok changing the WP is a pain . I wish every job was a quick and painless.
My WP and clutch fan has 225,000 on it you think I should worry? If cannot take 30-40 minutes start to finish. Thank-you for your valuable contribution from someone who hasn't even done one.
In 30 to 40 minutes let me know if you even have that miserable fan shroud and the overflow tank off , let alone see the water pump.
3 to 4 hour job for anyone who would rather spend the whole afternoon bent over the rad support and wedged in between the rad and the block than behind the wheel of your Ram. Yep, it's a real party.
Posted By: 70Cuda383
Re: 99 Dakota 5.2 remove clutch fan from water pump - 09/28/13 01:10 PM
Quote:LOL ok changing the WP is a pain . I wish every job was a quick and painless.
My WP and clutch fan has 225,000 on it you think I should worry? If cannot take 30-40 minutes start to finish. Thank-you for your valuable contribution from someone who hasn't even done one.
In 30 to 40 minutes let me know if you even have that miserable fan shroud and the overflow tank off , let alone see the water pump.
3 to 4 hour job for anyone who would rather spend the whole afternoon bent over the rad support and wedged in between the rad and the block than behind the wheel of your Ram. Yep, it's a real party.
my contribution, from someone who's done a few water pumps on the magnum engines.
gotta drain the coolant anyway to swap the pump. Yank out the whole radiator. 2 hose clamps, and 2 10mm bolts and the whole radiator lifts straight out. after coolant is drained, it takes about 3 minutes to remove the radiator. you could even take an extra 2 minutes and remove the 6 bolts that hold the upper core support across the top of the radiator. with the radiator comes the fan shroud, and you can leave the AC condenser in place, hooked up, and just kind of leaning out of the way.
then it feels like the whole front end of the truck opened up and the motor is on an engine stand.
makes the water pump change go a lot quicker.
Just food for thought if you ever have to do another one.
Posted By: ahy
Re: 99 Dakota 5.2 remove clutch fan from water pump - 10/02/13 12:50 AM
Quote:
I just use a big cresent wrench or pipe wrench and just smack it with a hammer always breaks it loose ,
That's what I usually have done... except on my '06 Durango the nut was installed with locktite. Lots of it. I tried Rock's trick and no go either. Finally I made a holding tool from bar stock as suggested above and even then it was a fight.
Posted By: Fat_Mike
Re: 99 Dakota 5.2 remove clutch fan from water pump - 10/02/13 03:44 AM
Quote:
...and you can leave the AC condenser in place, hooked up, and just kind of leaning out of the way
70Cuda383, I'd like to see how you did that! To remove/replace that little bypass hose, It seemed a lot easier to me to move the compressor out of the way. It took me and a buddy 3-4 hours to replace mine, and I also hope not to do it again for a decade or so. Mine is a 5.2, but I assume the process is the same...