Engine/Transmission (1994 - 1998) Fan Pulley Bearing Replcement

[Jfam]

Disclaimer: I did a search and checked the 3 pages found on fan pulley, though I could have missed something.



The fan pulley has developed a wobble to it (after 245k). The schematic (7-430A) from the dealer shows the bracket and set that holds the pulley on. It lists for $345. 00!!!! The roller bearing by itself (part # 04429639) lists for $100!!!



So my questions are: Has anyone done this job?

If so, did you have to replace anything besides the bearing? Like the hub, retainer, or housing itself? I ordered just the bearing and am hoping I can get away with it... .



Thanks

 

[BV]

$109 is what I paid for the bearing only. Replaced only the bearing using only the simple tools that I have (Vise, big sockets and BFH).

 

[QRTRHRS]

Jfam, I assume you mean the hub bearing? See my recent post. https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=104644 Mine started shrieking at 160k so perhaps if you got to 245k, your lucky. I pulled my fan to reduce the load until I can get the bearing.

 

[rrausch]

What are the chances of greasing it with a needle-type grease gun fitting? Anybody know?

 

[SMorneau]

We shot some grease into mine and it helped but I can't tell you how long it lasted because I replaced it in about 10,000 miles with a new one. As I recall the bearing presses out from either side and there is not shoulder in the bore. So you may want to measure it before pressing the old one out.

 

[Jfam]

Job done. NOTE: The dealer said I would need a new fan as the replacement fan clutch (viscous drive unit) was supposed to have a different bolt pattern. THIS WAS NOT TRUE, though I put the new fan on anyway... .

 

[QRTRHRS]

I finally got a chance to replace my bearing this morning. It appears the first and second gen use the same bearing. I ordered NTN DF0766LLUACS32 based on the old thread. This was before Andy Redmond had posted his part number on my other thread. The bearing I pulled out was stamped DF0766LUA same as the new one. I paid 86. 89 at an industrial supply shop for it.



The bearing was flush with the front of the cast bracket and the fan hub seats against the bearing in the front so alignment was a no brainer.