if you have the right japanese screw drivers (just got mine)... do you need an impact wrench or can you just tap them with the hammer and back them out too?
Blue fan clutch mod...Thread has gone to hell, read at your own risk (1 Viewer)
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Eaton units have torx screws. You can put any fluid you prefer in them, but they work well on 10K.
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I just use standard P3 on them and have never stripped one, but I always use an impact.
Is that a fairly decent clutch, Kevin? An Eaton came off of the bros 95 today, and I was going to chunk it. I decided to do a partial drain on a spare black hub I had then refilled with a mix of 7,000 and 30,000 cst and threw it on his ride. It sucks something wild.
The green hub for the 3FE likes 7,000 thus far.
Many thanks to all of you that have shed light on this situation. I'm much appreciative.
The green hub for the 3FE likes 7,000 thus far. Many thanks to all of you that have shed light on this situation. I'm much appreciative.
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IMHO pretty good units. The youngest are what 12 yrs old, have refilled a few and still going strong!
I decided to do a partial drain on a spare black hub I had then refilled with a mix of 7,000 and 30,000 cst and threw it on his ride. It sucks something wild.
Those black and the early blue hubs move some air, IMHO the best of the bunch!
alia176
SILVER Star
Thanks Kevin. I'll pick up some 10,000 CST from Toyota today. I'm hoping that two vials is enough?
Usually two will suffice. I have four tubes in stock at the moment.
......Those black and the early blue hubs move some air, IMHO the best of the bunch!
Kevin,
I've read through this thread from the beginning trying to decide what to do after doing my RT temp gauge mod. I'm glad I waited & read through the whole thread(whew!!!). Back about post #413, you were discussing a black hubbed fan clutch off a '94. I looked at the pics and that is the fan clutch I have.
I haven't had the chance yet to see how my temps read on the modified gauge in hot weather and under load. The clutch has worked flawlessly for my purposes and I get the roar at startup. The A/C will freeze you out even in 110 temps. I've had my '94 for 10 years and I'm sure it's original (the clutch) and it's got 217K miles on it. Should I change fluid in it, because of age/mileage or wait till I can fully test with modified (read accurate) gauge? What weight should I replace with when I do?
My usage varies from possible sub-zero winter weather to So. Cal. & Arizona & Utah deserts in summer. I occasionally use it for moderate towing chores. Expedition type trips mostly, but I'd like to have good trail performance also. I realize these are tough questions and difficult to find something that works well in all these conditions. It seems to me that through out this thread, you've been involved in depth and I respect your opinion. Thanks for any help! -Tom
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The way I understand it; most of the FZJ80's came from the factory with the Eaton, a few got the Aisin black hub. Replacements have always been Aisin, first the black hub, then the early type blue, now the later type blue. The black hub and the early type blue are very similar. IMHO they are the best and relatively rare, they are very durable. I would run it as long as it's mechanically sound, should last the life of the rig. Yours may have come on the rig or be an early replacement.
I have serviced a couple that were 10+yrs old and still had drive, that's pretty much unheard of here most don't last half the long. If yours is working well, leave it alone, if/when it has performance loss change the fluid.
I have serviced a couple that were 10+yrs old and still had drive, that's pretty much unheard of here most don't last half the long. If yours is working well, leave it alone, if/when it has performance loss change the fluid.
Thanks! That was my gut feeling. I'm anxious to see how hot weather and loads register on my modified temp gauge. It'll be interesting to see any climb in temps going up grades, or idling in hot weather with A/C blasting at max because before, with the mid temp stable gauge setup, once she warmed up, that needle stayed rock steady no matter the terrain, load or weather. It really is reassuring to know why that was happening and that now, I can more accurately monitor engine temp and actually be able to do something about it, if not satisfied. At the same time it's a little disconcerting to have been treated like a mushroom by original design. Do you know what the original weight of fluid was in the black hubbed Aisins?
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Nope, have done some playing, drip, orifice tests, made guesses bases on those, but they are irrelevant, as they were based in what 10yr old fluid and it's not going to be the same as new fluid.
Understand. Next move is mine - to find out how, in fact, it now performs. I appreciate your opinion & efforts!
anyone know what can be used to replaced the 8 outer phillips style bolts that are used to hold the 2 sides of the cluth together? I rounded 2 off before I found the secret of getting them off...
I tossed the standard phillips bits on my impact screwdriver (they were rounding the bolts and used the JIS screwdriver and just hammered it a few times when it was engaged in the screws.. works perfectly. the hammering lossened the bolts.. used this technique on the 2 inner plate screws too.
Also, I rotated the innner plate counterclockwise slightly. I lined up the top hole so half of the top hole was covered.. the other hole is hard to read.... seems to be full open..... hope that is ok......
Now I just need to find what works to replace those crappy phillips outer 8 screws... anyone?
I tossed the standard phillips bits on my impact screwdriver (they were rounding the bolts and used the JIS screwdriver and just hammered it a few times when it was engaged in the screws.. works perfectly. the hammering lossened the bolts.. used this technique on the 2 inner plate screws too.
Also, I rotated the innner plate counterclockwise slightly. I lined up the top hole so half of the top hole was covered.. the other hole is hard to read.... seems to be full open..... hope that is ok......
Now I just need to find what works to replace those crappy phillips outer 8 screws... anyone?
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Take one to a good hardware or bolt store, should have replacements in whatever type driver you prefer, torx, allen, etc.
I you do find replacements I would suggest changing all of them.
Found the size needed to replace those 8 damn outer JIS screws....
I went with hex head bolts.... M6- 1,0 - 20MM
A perfect fit!!! Dont need to worry about stripping 'em ever again
I got 'em at Auto Zone
I went with hex head bolts.... M6- 1,0 - 20MM
A perfect fit!!! Dont need to worry about stripping 'em ever again
I got 'em at Auto Zone
The green hub for 3FE is rocking at 7000cst! Mileage dropped a tad for sure, but I'm more concerned with a/c vent temps at idle in traffic sitting over melt your shoes hot asphalt.
I can't report on a/c vent temps (or condenser) the black hub produces on my bro's 95 in conditions I'd consider worth testing. It's not likely I will go back to Austin to measure or get him to report either. His a/c blowing colder than mine at idle though, and that was the goal, other than changing his valve cover gasket.
I have another green hub I plan on putting 10K into and an Eaton which is looser than a $2 whore that may not be worth the effort.
Edit: I just checked the 94 and it's already leaking fluid. I replaced it last summer, but can't remember what brand the replacement unit it is, but I didn't rebuild it. If the vehicle has 400 miles on it since, I'd be surprised. It's trash, I know that much. Add another project to the list.
I can't report on a/c vent temps (or condenser) the black hub produces on my bro's 95 in conditions I'd consider worth testing. It's not likely I will go back to Austin to measure or get him to report either. His a/c blowing colder than mine at idle though, and that was the goal, other than changing his valve cover gasket.
I have another green hub I plan on putting 10K into and an Eaton which is looser than a $2 whore that may not be worth the effort.
Edit: I just checked the 94 and it's already leaking fluid. I replaced it last summer, but can't remember what brand the replacement unit it is, but I didn't rebuild it. If the vehicle has 400 miles on it since, I'd be surprised. It's trash, I know that much. Add another project to the list.
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Tom, interesting, I also have a 94 with the orig. black AISIN, 175k mi. Just did the RT Temp Mod and so far my needle is pegged in the middle under all conditions, maybe a needle's width below on the highway. I am also going to leave it for now and see what happens in the summer. I'll be doing a trip from CO to N CA in June, towing a trailer on the way back, so that should give some good data. Keep us updated on how your Black Hub performs over the summer with the Temp Mod.
Found the size needed to replace those 8 damn outer JIS screws....
I went with hex head bolts.... M6- 1,0 - 20MM
A perfect fit!!! Dont need to worry about stripping 'em ever again
I got 'em at Auto Zone
If anyone ever needs these, send me a PM, I've got plenty of JIS sized M6x20 hex heads that I could send out quickly.
