Fan clutch fluid

Elijah · 08-02-08, 12:07 PM

So how much fluid is needed to refill the blue hub fan clutch if completely drained? Been reading threads for a half hour and can't find it.

hj60 · 08-02-08, 01:10 PM

Not much. IIRC mine was about 6 oz?
Maybe Tools R Us can say for sure, as he did mine

turbocruiser · 08-02-08, 01:19 PM

I seem to remember that with an overnight drain still leaving some fluid/film in the clutch it takes exactly two tubes to correctly fill the clutch. I'm referring to the tubes that the dealers sell here, btw. I bought two tubes of the 6K from Dan based on the Landtank thread. My clutch is relatively new so IF i think that the fill is a little low, I'll just take some of the old drain 3K (US spec IIRC) and add as appropriate. All of this is from my memory and my memory sucks so perhaps either Landtank or Tools can chime in here to help.

gotmud · 08-02-08, 01:36 PM

I have found there is no consistency with volume amounts on an oe clutch. I would drain the clutch over night as others have said, but when you fill it, fill it to the top of the reservoir opening.

Tools R Us · 08-02-08, 01:39 PM

The newer style Aisin blue hubs, (identified by sheet metal spring holder) my fill is 50ml. The earlier type (cast spring holder) can hold more ~60ml. The original Eaton clutches about only hold ~30ml.

The first pic is the newer style Aisin with sheet metal spring holder, the second pic the older Aisin blue or black hub style.

turbocruiser · 08-02-08, 01:44 PM

Quote:

Originally Posted by gotmud

I have found there is no consistency with volume amounts on an oe clutch.

Wow, that surprises me, I'm not saying it isn't so, I'm just saying it surprises me. Is this with clutches that aren't leaking any or otherwise have a reason to be so drastically different? Between the really wide range of observed temperatures where the clutches activate and this inconsistency in fluid fills, we really seem to have missed the mark in standardizing this incredibly important part. Either way, if you drain overnight and add two tubes regardless of how "off" each one was with others to start with, yer gonna get the same final fill.

Edit: Looks like the tubes I got from Dan of the 6K (part no. 08816-06001 ) are 15ml's each so three tubes is more appropriate unless you simply take some of the old 3K and add it. HTH>

gotmud · 08-02-08, 02:34 PM

IIRC, the last blue hub I did took a little over 50ml.

Elijah · 08-02-08, 04:30 PM

I picked up 50 ml of the 10,000 weight rc diff fluid at the hobby shop. I'll put all of it in after I drain for a few hours. I have a newer style blue hub. I had no cold air at all idle, but at 30 mph or more I have cold air. At idle, the clutch was not engaging. I'm hoping this will do the trick to having some AC in this 100 degree weather. Anti-freeze flushed as well and no overheating either.

Elijah · 08-02-08, 04:35 PM

Quote:

Originally Posted by gotmud

I have found there is no consistency with volume amounts on an oe clutch. I would drain the clutch over night as others have said, but when you fill it, fill it to the top of the reservoir opening.

Which side of the clutch is the 'reservoir' on? Looks like both sides hold fluid?

Elijah · 08-02-08, 09:44 PM

Just dumped the 50ml of fluid in and got it put back together and installed. Nice roar on startup and can tell the roar during idle at stops, traffic, etc. Only thing is this didn't get my AC cool, I look again and now the compressor clutch doesn't engage. FSM says check belt tightness, than check the magnetic clutch relay. I'll try and figure out how to 'test' the relay, if I can find it.

Beowulf · 08-03-08, 12:09 AM

Don't overlook the belts. There is a reason that the FSM says to check them first. Depending on age it might be a good idea to replace the A/C belt. My A/C wasn't working right after I bought the truck in 2001. No audible indication that the belt was bad or slipping. Put on a new belt and tightened and the A/C has worked fine for 7 years.

-B-

Romer · 08-03-08, 12:15 AM

My pully had fallen off the adjustment bolt near the bottom of the engine. Check to make sure its tight and the pully is still there

Elijah · 08-03-08, 01:51 AM

Belt is new and tight(OEM) and everything is intact. I need to figure out why the clutch isn't engaging. I remember before I would hear a slight click when it engaged and RPM's would jump to around 800-850. Now I get no engagement at all.

08-02-08, 12:07 PM	#1
Elijah IH8MUD Addict Join Date: Jul 2005 Location: slc area TLCA# 16029 Posts: 742	Fan clutch fluid So how much fluid is needed to refill the blue hub fan clutch if completely drained? Been reading threads for a half hour and can't find it. __________________ 99 UZJ100, OME 2" lift, 315's, ARB front bar, 4x4 Labs rear bar 95 FZJ80, lockers, off-road monster, 37" Pitbull Rockers 84 FJ60, stock 76 FJ40, v8 conversion, discs all around, lock-right in back, 35's

08-02-08, 01:19 PM	#3
turbocruiser IH8MUD Lifer Join Date: Dec 2003 Posts: 3,085	I seem to remember that with an overnight drain still leaving some fluid/film in the clutch it takes exactly two tubes to correctly fill the clutch. I'm referring to the tubes that the dealers sell here, btw. I bought two tubes of the 6K from Dan based on the Landtank thread. My clutch is relatively new so IF i think that the fill is a little low, I'll just take some of the old drain 3K (US spec IIRC) and add as appropriate. All of this is from my memory and my memory sucks so perhaps either Landtank or Tools can chime in here to help. __________________ 97 FZJ80, Locked & Loaded, Safari Turbo, Safari Intercooler, LandTank MAF, 3" Ceramic Coated Custom Exhaust, Ron Davis Racing Radiator, OME HD 2.5" Suspension, DBA Slotted Rotors, New Toyota Calipers All Around, Toyota Pads, 33" Revos, ARB Front Bumper, Center Diff Switch, Slee Stuff: Roof Rack, Step Sliders, Skid Plates, SS Brake Lines, DC Drive Shaft. HG PM'd, 8.5psi and climbing, My Rocky Mountain Mojo Mobile!

08-02-08, 01:36 PM	#4
gotmud IH8MUD Addict Join Date: Jul 2007 Location: Gringolandia TLCA# 18039 Posts: 531	I have found there is no consistency with volume amounts on an oe clutch. I would drain the clutch over night as others have said, but when you fill it, fill it to the top of the reservoir opening. __________________ 1994 FZJ80

08-02-08, 01:39 PM	#5
Tools R Us IH8MUD Lifer Join Date: Jul 2004 Location: Chandler, AZ Posts: 6,475	The newer style Aisin blue hubs, (identified by sheet metal spring holder) my fill is 50ml. The earlier type (cast spring holder) can hold more ~60ml. The original Eaton clutches about only hold ~30ml. The first pic is the newer style Aisin with sheet metal spring holder, the second pic the older Aisin blue or black hub style. Attached Images __________________ Kevin Patterson '96 LX450 '84 4x4 Mini '73 FJ40 Copper State Cruisers #007 "We have come to the conclusion that we can run our car over any road that a man can take a team of horses and a wagon, providing we can get traction." Dr. Horatio Nelson Jackson, 1903

08-02-08, 02:34 PM	#7
gotmud IH8MUD Addict Join Date: Jul 2007 Location: Gringolandia TLCA# 18039 Posts: 531	IIRC, the last blue hub I did took a little over 50ml. __________________ 1994 FZJ80

08-02-08, 04:30 PM	#8
Elijah IH8MUD Addict Join Date: Jul 2005 Location: slc area TLCA# 16029 Posts: 742	I picked up 50 ml of the 10,000 weight rc diff fluid at the hobby shop. I'll put all of it in after I drain for a few hours. I have a newer style blue hub. I had no cold air at all idle, but at 30 mph or more I have cold air. At idle, the clutch was not engaging. I'm hoping this will do the trick to having some AC in this 100 degree weather. Anti-freeze flushed as well and no overheating either. __________________ 99 UZJ100, OME 2" lift, 315's, ARB front bar, 4x4 Labs rear bar 95 FZJ80, lockers, off-road monster, 37" Pitbull Rockers 84 FJ60, stock 76 FJ40, v8 conversion, discs all around, lock-right in back, 35's

08-02-08, 09:44 PM	#10
Elijah IH8MUD Addict Join Date: Jul 2005 Location: slc area TLCA# 16029 Posts: 742	Just dumped the 50ml of fluid in and got it put back together and installed. Nice roar on startup and can tell the roar during idle at stops, traffic, etc. Only thing is this didn't get my AC cool, I look again and now the compressor clutch doesn't engage. FSM says check belt tightness, than check the magnetic clutch relay. I'll try and figure out how to 'test' the relay, if I can find it. __________________ 99 UZJ100, OME 2" lift, 315's, ARB front bar, 4x4 Labs rear bar 95 FZJ80, lockers, off-road monster, 37" Pitbull Rockers 84 FJ60, stock 76 FJ40, v8 conversion, discs all around, lock-right in back, 35's

08-03-08, 12:09 AM	#11
Beowulf The quick brown fox ..... Join Date: Mar 2003 Location: Somewhere in the foothills... Posts: 10,566	Don't overlook the belts. There is a reason that the FSM says to check them first. Depending on age it might be a good idea to replace the A/C belt. My A/C wasn't working right after I bought the truck in 2001. No audible indication that the belt was bad or slipping. Put on a new belt and tightened and the A/C has worked fine for 7 years. -B- __________________ 97 FZJ80 - Wing Nut MAF, locked, 315 Toyos, 4.88s, Slee 4", George's sliders, Slee bumpers, M12000, OBA, Outback drawers + other stuff. Transformation in progress... Sometimes you find yourself in the middle of nowhere. And sometimes in the middle of nowhere, you find yourself.

08-03-08, 12:15 AM	#12
Romer Kneel for the Shaman Join Date: Sep 2003 Location: Englewood, Colorado TLCA# 13968 Posts: 7,552	My pully had fallen off the adjustment bolt near the bottom of the engine. Check to make sure its tight and the pully is still there __________________ Ken Romer ~ Friend of Shaman Keeper of the FAQ, Defender of Newbies, and Slayer of Tards Commander Rising Sun 4WD Club - K0ROM 97 LX450, Supercharged, Locked, and lots of other stuff ROTW 96 LX450 - ROD's 06 4Runner - Wife's 99 4Runner - daughterofromer's 03 BMW Z4 Roadster

08-03-08, 01:51 AM	#13
Elijah IH8MUD Addict Join Date: Jul 2005 Location: slc area TLCA# 16029 Posts: 742	Belt is new and tight(OEM) and everything is intact. I need to figure out why the clutch isn't engaging. I remember before I would hear a slight click when it engaged and RPM's would jump to around 800-850. Now I get no engagement at all. __________________ 99 UZJ100, OME 2" lift, 315's, ARB front bar, 4x4 Labs rear bar 95 FZJ80, lockers, off-road monster, 37" Pitbull Rockers 84 FJ60, stock 76 FJ40, v8 conversion, discs all around, lock-right in back, 35's

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode