mejojo Posted January 17, 2007 Posted January 17, 2007 92 LS400. Fan bearing's gone out...wobbles at low RPM with bad noise...not too bad at higher rpm. Can just the fan bearing/clutch be replaced, or do you have to tear down the whole front? If the latter, it could use a timing belt job as well, but if just the fan can be replaced for a few hours work, I'd go that way. TIA, Joe
mejojo Posted January 17, 2007 Author Posted January 17, 2007 Not bad - check out steps 10 & 11 Here . Thanks. I only got a look at the problem in the dark, and had looked at that tutorial last night, but I was afraid it wasn't quite as simple as it looks. I ordered a clutch 2-day FedEx shipping and should be able to do it this weekend. Looks like it could be a 30-45 minute job if I don't run into any obstacles like "tight spaces". This sound right? Joe
LScott400 Posted January 17, 2007 Posted January 17, 2007 I don't think you'll have a problem. It should go pretty quick. The tricky part will be loosening the last bolt because it will have been tightening while you use it for leverage to loosen the other three. After you get the three broke loose leave them in and let one tighten back up while you use it to break the fourth one loose just in case it is froze up. Hopefully the wobbly bearing is in the fan clutch and not the water pump (you're probably thinking I could have kept that last part to myself, huh...) :whistles:
mejojo Posted January 17, 2007 Author Posted January 17, 2007 I don't think you'll have a problem. It should go pretty quick. The tricky part will be loosening the last bolt because it will have been tightening while you use it for leverage to loosen the other three. After you get the three broke loose leave them in and let one tighten back up while you use it to break the fourth one loose just in case it is froze up. Hopefully the wobbly bearing is in the fan clutch and not the water pump (you're probably thinking I could have kept that last part to myself, huh...) :whistles: Well, might as well try the cheap and easy possibility first. There is no water leakage and not overheating, so I'm keeping my fingers crossed. I've got 200k on the original water pump and probably 100k+ on the timing belt, so I won't be surprised if I have a "bigger" job to do some time in the future. Thanks much for your advice. Joe
92Lex Posted January 18, 2007 Posted January 18, 2007 To remove the final nut...just wedge a screwdriver between 2 of the studs to keep the fan clutch from spinning.
SKperformance Posted January 20, 2007 Posted January 20, 2007 I think mine is also causing a slight vibration at 2100 rpm but instead of replacing the bearing/clutch i think i will just get a whole new fan that is electrical to reduce the load and free up some power.
92Lex Posted January 21, 2007 Posted January 21, 2007 I think mine is also causing a slight vibration at 2100 rpm but instead of replacing the bearing/clutch i think i will just get a whole new fan that is electrical to reduce the load and free up some power. Plus it looks more trick that way.
mejojo Posted February 2, 2007 Author Posted February 2, 2007 I think mine is also causing a slight vibration at 2100 rpm but instead of replacing the bearing/clutch i think i will just get a whole new fan that is electrical to reduce the load and free up some power. Plus it looks more trick that way. Further investigation leads to a diagnosis of the infamous FAN BRACKET. Got a factory new unit for $195 + tax + $5 shipping on ebay. I think I will just replace this and go about my business until something else breaks. Question about the timing belt therapy pictorial, it seems that the radiator is gone very early, but rad removal only shows up at step #14, long after it appears that it must have already been gone awhile. Do I have this right? Joe
LScott400 Posted February 3, 2007 Posted February 3, 2007 Further investigation leads to a diagnosis of the infamous FAN BRACKET. Got a factory new unit for $195 + tax + $5 shipping on ebay. I think I will just replace this and go about my business until something else breaks. Question about the timing belt therapy pictorial, it seems that the radiator is gone very early, but rad removal only shows up at step #14, long after it appears that it must have already been gone awhile. Do I have this right? Joe I think you're right. Looks like steps 10-12 would be easier after radiator removal.
92Lex Posted February 3, 2007 Posted February 3, 2007 Don't remove the radiator, there's plenty of room to remove the fan assembly.
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