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Old 07-04-2014, 04:33 PM
Benchrest Benchrest is offline
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Join Date: Jul 2014
Location: Evansville Indiana
Posts: 5
Ogura or Warner or Fatboy Extreme????

Hi Everybody,

Have an issue with my Scag Tiger Cub, the clutch coil is showing a direct short.

In looking on the web and Ebay I see it seems my mower could have had either a Ogura or a Warner.

Mine has an Ogura, looks like the anchor is different on the Ogura vs. the Warner.

BUT my question is,,,

Which is the best brand???

Obviously with under 500 hours I am not really pleased with the Ogura
****YES I adjusted the air gap regularly*****

Is this just the life span of a mower clutch??
This is the only one I have other than on A/C for automobiles and I have never had an issue on those other than an occasional bearing.

I am not bothered by changing the mounting for a BETTER unit as long as it fits my shaft and the pulley is in line.

Are these EXTREME Fatboy clutches I see on ebay any good??
Looked and read good anyway.

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Old 07-05-2014, 08:56 AM
scagman52 scagman52 is offline
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Join Date: Oct 2006
Location: spring hill, florida
Posts: 343
I have a 2005 Tiger Cub and had to replace the clutch around 1200 hours because it had a bad bearing. Never heard of a direct short. You should check all your wiring and the switch. I would stay with the Orgura clutch. I also have a 2010 Tiger Cat with over 800 hours and no problems with the clutch.
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Old 07-05-2014, 01:43 PM
Benchrest Benchrest is offline
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Join Date: Jul 2014
Location: Evansville Indiana
Posts: 5
Yeah clutch is on the bench and reading 0.00 ohms
direct short.
Same reading you get when you touch the probes together
NOT an open line (which wouldn't be good either)

Maybe I just ended up with a DUD?

Just want some assurance next one lasts longer
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Old 07-05-2014, 05:00 PM
Benchrest Benchrest is offline
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Join Date: Jul 2014
Location: Evansville Indiana
Posts: 5

I went with the Xtreme Clutch so I guess I'll see what happens.

I'll have to change the stop on it but no big deal there,,
Basically I have an Ogura mount/stop and will have to change it to a Warner style.

Will try and keep the rubber bumper system from the Ogura

Talked to one of the engineers at the company and he was quite knowledgeable on the issue

Stated that this one will have about 30% more holding power
Can't remember if he was using ft.lbs. or some other unit but the Ogura was 150's and this new one will be 200.

I explained this mower gets used more as a Bush Hog than a lawnmower so he said I was more than likely suffering from clutch slippage which heated up the coil and killed it.

Said HEAT is the general reason for a dead short coil.

$180 down on cash now so keeping fingers crossed,,

Will update when it arrives and I get it mounted maybe post some pics if anyone else finds this situation
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Old 07-07-2014, 10:18 PM
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retrodog retrodog is online now
LawnSite Silver Member
Join Date: Apr 2007
Location: Paris, Tx
Posts: 2,366
Honestly man I have seen clutches fail at 4 hours... i have had tons shatter, magnets cracked, melted, and with shorts... I have one guy that goes through 3 to 4 a year, and then on the other hand I have some with thousands of hours on them. The warner with 250lbs of torque is the best I have found unless you go to one of the new wet clutch designs. They are extremely abused on a mower as oopposed an ac system on a car... its a miracle they go as long as they go. $180 is definately not to shabby for a pto clutch. With short, I highly recommend replacing the pto switch and the pigtail going to the clutch. Alot of mower companies have diodes in the pigtail, and anything shorting out in either one of those will just ruin your new clutch too... better safe spending another 30 or so then spending another 200 next week..
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Old 07-08-2014, 12:09 AM
Benchrest Benchrest is offline
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Join Date: Jul 2014
Location: Evansville Indiana
Posts: 5
I'll check the wire for a diode, guy at Xtreme also suggested checking my DC voltage to make sure I don't have an over voltage issue too.

I am guessing that 250# is for a larger deck?

My Tiger Cub has a 48"

Would like to have a 250# but at least my new one will be stronger than what I had.

What is the shaft size on that 250# unit?
Mine is 1-1/8" and then I think 2-3/4" stack height.

Yeah it toasted my switch in the process so have to get a new one anyway.
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Old 07-08-2014, 01:01 AM
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TPendagast TPendagast is offline
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Join Date: May 2008
Posts: 7,162
get a turf tiger buddy…don't need no stinking clutches, direct drive!! Like a submarine!
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Old 07-13-2014, 05:04 PM
Benchrest Benchrest is offline
LawnSite Member
Join Date: Jul 2014
Location: Evansville Indiana
Posts: 5

Got the new Xtreme clutch, very nice looking unit,,

Got it mounted,,
Had to shorten my old shaft key that went through the hydro pulley AND the clutch
new clutch does not have keyed top bearing

was able to adapt my old anti-rotation bumper to the new clutch with a few simple cut and grind modifications

so it is all mounted and looks like a factory install

with advice from here and other places I carefully opened my wire harness to inspect the hot wire and it was fine

Now my NEW ISSUE is my volatge at the clutch plug (clutch not plugged in) is 14.2 volts at full throttle

I have been told 13.6 - 14 volts is the range and if outside this I have a problem

I know I have seen systems put out more than 14 before and was normal

BUT is 14.2 the kiss of death in THIS system??

Will not be running my new clutch until I am satisfied with this voltage issue.

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