Reconditioning Fan Clutch w/ Pics (Completed)

[JDMMA70]

Well I decided to recondition the used fan clutch i bought from Rich @ SIP.

I armed myself with jetjocks instructions

Removed the extremely tight screws :: angry ::

I pried open the two halves

Drained the old silicone oil out

and got to cleaning

On the instructions it says how to test the control valve, being heat the coil up with hot water or a blow dryer. How long will it take with a small blow dryer before i see movement? Ive got one of those travel blow dryers.

Also it says to fill with new oil into the half where the reservoir is. Is that the coil side (front) or the back half?

I included pics in case anyone was planning to do this wanted to see pics just so they arent confused.

Thanks!

 

[arizzle]

i never knew you can recondition the fan clutch! i will wait till theres more info before buying a new clutch.

 

[WhtMa71]

I'm glad you posted this. I'll probably be rebuilding one soon as well!

 

[giterboosted]

what do you fill it with? and does this make it work properly

 

[JDMMA70]

3000cst Silicone oil you can get it from Toyota or Hobby Shops. If its seized yes it can solve the problem to my understanding.

 

[jetjock]

Good for you. Pour it in the half pictured in the lower photo. As long as the valve rotates by hand I wouldn't worry about heating the coil. Just make sure the shaft bearing is in good condition...

 

[Scruggs86.5T]

where are these instructions, thanks

 

[jetjock]

www.4crawler.com/4x4/Docs/FanClutch.pdf

Close enough. I would add RC differential oil is cheaper and more readily available...

 

[JDMMA70]

Reassembly Today!

Got the 3000cst oil

Pouring the oil in

All filled up

Put oil in the o-ring

Sealed and and tighten down just need to torque.

 

[ForcedTorque]

Quoted from the instructions:

"After cleaning out all of the old silicone from the fan clutch halves, add about 50mL of silicone to the lower half of the clutch. This should be just enough to fill the holes and not overflow into the O-ring groove"

So, why would you put oil on the O-ring?



BTW.........Did you do this in your bathroom?:biglaugh:

 

[JDMMA70]

Quoted from the instructions:

"After cleaning out all of the old silicone from the fan clutch halves, add about 50mL of silicone to the lower half of the clutch. This should be just enough to fill the holes and not overflow into the O-ring groove"

So, why would you put oil on the O-ring?

I swiped the o-ring with some oil to get it to stick in the grove itself. I did fill the lower half with oil but the o ring groove is on the ouside of that whole piece.

BTW.........Did you do this in your bathroom?:biglaugh:

of course its where real men get work done :rofl:

 

[ForcedTorque]

Just wanted to be sure. As I read it (too literally I guess), I thought oil may be bad for that particular o-ring. I would normally do the same, but that line would have probably have deprived my O-ring that right without asking. I've got a few fan clutches in my shed that I can play with. I'm another of those who didn't know this was rebuildable. Thanks for the write up!

 

[87M-GTE]

Great write-up!

Should be Stickied

-Sam

 

[hornet7288]

Pretty cool. I have an extra clutch so I may do this. How is it working out so far? I agree that this should be stickied.

 

[Dylan JZ]

this could not have come at a better time.. mine just seized about two to three weeks ago and has been annoying as hell since.

 

[JDMMA70]

Pretty cool. I have an extra clutch so I may do this. How is it working out so far? I agree that this should be stickied.

Well first one i did i didnt tighten the screws down enough i shouldve used thread locker and seal sweller so it leaked. Second one works perfectly as it should and i sold that one to a buddy. Im about to buy a new OEM one so i can redo my first one again.

this could not have come at a better time.. mine just seized about two to three weeks ago and has been annoying as hell since.

yeah i know how that is it sucks.

 

[Dylan JZ]

yes it does. btw, 屍姫 was win.

 

[3p141592654]

I remember the first time I did this I put too much oil in and the thing was permanently locked. Sounded like an 18 wheeler truck!

Use an impact driver to get those screws out.

 

[mattsplat72]

Sticky this bitch!!!!!!

 

[SideWinderGX]

What are you spraying it with to get the rest of the silicone oil out? I've got mine draining on a desk next to me but without some coercing I think some of it is going to stay behind haha.