ILoveMyPatty Posted July 31, 2008 Share Posted July 31, 2008 Well I swapped my engines and I've been running this one for probably 1500km now, but my stupid fan wont shut off. It's on all the time and it's really getting to my nerves. It's super loud, and dono what to do. Could the clutch be messed up or something? I have no clue. Any help is greatly appreciated, but I wont check back on this thread for 3 days... stupid boonies isolation... Thanks everyone. Hope all is well with all the members here, it's been a while since I frequented the board. Link to comment Share on other sites More sharing options...
Precise1 Posted July 31, 2008 Share Posted July 31, 2008 Ok the 90 doesn't have electric fans and as you said clutch, I'm guessing you have the fan clutch. If it is quite loud, yes, odds are the clutch is bound for some reason. Can you turn it by hand? You should be able to get 1/2 rev spin trying hard. It should start up loud, then fade away as it warms up something like 15-60 seconds. I'd bet this is the problem. If so, change it soon as it will probably put unwanted stress on the water pump. B Link to comment Share on other sites More sharing options...
GrimGreg Posted July 31, 2008 Share Posted July 31, 2008 Yep, sounds like a bad/seized fan clutch. Link to comment Share on other sites More sharing options...
Simon Posted July 31, 2008 Share Posted July 31, 2008 X3 Link to comment Share on other sites More sharing options...
Casey.T Posted July 31, 2008 Share Posted July 31, 2008 If you dont change it, the extra stress can cause the waterpump bearing to fail... then your tearing the front end apart again anyways... Link to comment Share on other sites More sharing options...
94extreme Posted July 31, 2008 Share Posted July 31, 2008 hmmm.. the fan stays on all the time when it's belt driven. what's the problem? Link to comment Share on other sites More sharing options...
ILoveMyPatty Posted July 31, 2008 Author Share Posted July 31, 2008 (edited) Alrighty well it sounds like the fan/clutch will get replaced asap then. Should be pretty straightforward, yes? Rad out, fan shroud, unbolt the fan and get to the clutch itself? I'll look in my manual and figure it out. Thanks everyone. Or do I switch to an e-fan... hmmmm.... With the fan going all the time I've really noticed a loss in power. Kinda sucks as I can't fix 'er right now. But I'll get on it when I can. Edited July 31, 2008 by ILoveMyPatty Link to comment Share on other sites More sharing options...
Nissyota88 Posted July 31, 2008 Share Posted July 31, 2008 Alrighty well it sounds like the fan/clutch will get replaced asap then. Should be pretty straightforward, yes? Rad out, fan shroud, unbolt the fan and get to the clutch itself? I'll look in my manual and figure it out. Thanks everyone. Or do I switch to an e-fan... hmmmm.... With the fan going all the time I've really noticed a loss in power. Kinda sucks as I can't fix 'er right now. But I'll get on it when I can. TANNNER!!! dude i put dana 60's under my pathfinder and i also moved down to california sorry for never meeting you bro Link to comment Share on other sites More sharing options...
GrimGreg Posted August 1, 2008 Share Posted August 1, 2008 hmmm.. the fan stays on all the time when it's belt driven. what's the problem? It shouldn't, at least not with the clutch engaged/disengaged...(whichever term really fits). Ideally you can start the engine while holding the fan and it will not spin. Yes it is always spinning when you look at a running engine, but half the time it is spinning for the same reason spinner wheels spin even after the donk stops. Link to comment Share on other sites More sharing options...
AaronHorrocks Posted August 1, 2008 Share Posted August 1, 2008 This happend to me a few months back, and I posted about it on another site. Fan stays on, lots of roaring and windy noise, with power loss. It's a failed fan clutch. It should move freely when the engine is off. Does it? I bet it doesn't. According to the dealer, the fan clutches are starting to fail on all the older nissans, and they've started to stock new ones in all the parts departments. Link to comment Share on other sites More sharing options...
Precise1 Posted August 1, 2008 Share Posted August 1, 2008 There is another site?? B Link to comment Share on other sites More sharing options...
Alkorahil Posted August 2, 2008 Share Posted August 2, 2008 According to the dealer, the fan clutches are starting to fail on all the older nissans, and they've started to stock new ones in all the parts departments. There alot of parts starting to fail on old vehicles....... Link to comment Share on other sites More sharing options...
ILoveMyPatty Posted August 5, 2008 Author Share Posted August 5, 2008 Thanks for chiming in everyone, it's helpful to me. Does anyone know of an approximate cost for a new fan clutch? Now is when I'll ask the question... E-fan, or new fan clutch.....? What would be more practical financially and performance wise? Link to comment Share on other sites More sharing options...
Simon Posted August 5, 2008 Share Posted August 5, 2008 Well, I would vote for the e-fan setup. Mine is a dual fan setup out of a Ford Escape. It's pretty simple. The main one runs all the time, and is triggered by the ignition, the other comes on with the AC. Works nicely for my uses, though, I will be wiring in a master switch so I can shut it off when the need arises (water crossings). Link to comment Share on other sites More sharing options...
ILoveMyPatty Posted August 12, 2008 Author Share Posted August 12, 2008 Well, since I have my old engine, I've chosen to use that fan clutch instead of buying new. How tough is it to do this clutch swap? Seems to me like it's just the timing cover that needs to come off, then you can get to the clutch somehow? I removed the timing cover on my old motor, but can't see how to get at that clutch. I can't find my Haynes manual anywhere... so I was wondering if anyone could give me the DL on it. Thanks everyone. Link to comment Share on other sites More sharing options...
FUELER Posted August 13, 2008 Share Posted August 13, 2008 on my vg33 its just bolted to the water pump, i only had to remove the fan and the radiator shroud.... Link to comment Share on other sites More sharing options...
jj big shoe Posted August 13, 2008 Share Posted August 13, 2008 I did the e-fan a while ago, but IIRC, there should be four 10mm nuts. The fan/clutch assembly bolts to the water pump with threaded posts that go through holes in the water pump flange. Feel around between the fan and timing belt cover for them. You should be able to get at the nuts with an open end wrench. Link to comment Share on other sites More sharing options...
daver123 Posted August 13, 2008 Share Posted August 13, 2008 Well, I would vote for the e-fan setup. Mine is a dual fan setup out of a Ford Escape. It's pretty simple. The main one runs all the time, and is triggered by the ignition, the other comes on with the AC. Works nicely for my uses, though, I will be wiring in a master switch so I can shut it off when the need arises (water crossings). Good call on that one. I will be doing that as well to my fan out of a ford Taurus. Link to comment Share on other sites More sharing options...
GrimGreg Posted August 13, 2008 Share Posted August 13, 2008 I did the e-fan a while ago, but IIRC, there should be four 10mm nuts. The fan/clutch assembly bolts to the water pump with threaded posts that go through holes in the water pump flange. Feel around between the fan and timing belt cover for them. You should be able to get at the nuts with an open end wrench. Yep, and you'll probably drop every single one trying to remove them, they are a PITA. Getting them back on is just as fun too . Link to comment Share on other sites More sharing options...
Simon Posted August 13, 2008 Share Posted August 13, 2008 Yep, and you'll probably drop every single one trying to remove them, they are a PITA. Getting them back on is just as fun too . And THAT alone makes an e-fan swap worth it! I fawking hated those little bastards! Link to comment Share on other sites More sharing options...
FUELER Posted August 13, 2008 Share Posted August 13, 2008 Yep, and you'll probably drop every single one trying to remove them, they are a PITA. Getting them back on is just as fun too . true that, but getting the bolts back on is not as much fun as the dirt that drops into your eyes when you do that.... im going to wear protective goggles next time i do a job like this Link to comment Share on other sites More sharing options...
adamzan Posted August 14, 2008 Share Posted August 14, 2008 Yep, and you'll probably drop every single one trying to remove them, they are a PITA. Getting them back on is just as fun too . I didn't drop any of them or the little washers they were a bitch to get too though true that, but getting the bolts back on is not as much fun as the dirt that drops into your eyes when you do that.... im going to wear protective goggles next time i do a job like this You did it from the bottom? Link to comment Share on other sites More sharing options...
AaronHorrocks Posted August 14, 2008 Share Posted August 14, 2008 Sometimes being on the bottom is more fun. Link to comment Share on other sites More sharing options...
Precise1 Posted August 14, 2008 Share Posted August 14, 2008 Dude!!! It's a TRUCK!!! B Link to comment Share on other sites More sharing options...
ILoveMyPatty Posted August 15, 2008 Author Share Posted August 15, 2008 So, all it is, is the flange that the fan bolts up to? That's minor Gives me more time to do my body lift on my time off Oh and for those stupid nuts and washers.... When I did my swap and was putting my fan back on, I had a nut go in between the "crank" pulley? and a belt. Holy fruit did that piss me off. Had to take my belt off and everything. Anyway, I'll check in tomorrow and hopefully have an update. I'll get some before/after pics for the BL as well. Thanks everyone. Greatly appreciated. Link to comment Share on other sites More sharing options...
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