noise from oil clutch area

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mineoladavid

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I have a 17A5xxx that I have put new bearings/seals in the finals and tranny, and new seals in the number 25 cable control unit. Yesterday I started the unit up, walked it about 100 yards and pushed a little dirt, then back to the shop to adjust the cable control clutch and brake. Everything was normal. Today I started the unit and as soon as the pony motor shut down, I could hear a slight intermittent squeal from the clutch area. There was no change in the sound by engaging/disengaging the clutch or raising the RPM. I shut the engine down after about one minute.

After thinking thru what had happened, I pulled the 6x4 inspection plate on top of the clutch where everything appeared normal. Clutch oil level is normal. I restarted the engine. This time the squeal was louder, of longer duration, but still intermittent. At about 30 seconds of operation the sound became louder, approaching a grinding sound, definitely from the clutch area. Again, no difference with clutch engaged.disengaged or RPM. I shut the engine down.

I would appreciate you guys thoughts as what the problem might be and how to proceed. I have had to request your advice twice before during this two year project. Many thanks for the clear and totally correct answers members have provided.

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Mon, Nov 10, 2014 4:42 AM

gemdozer

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You could recheck in the cluch housing if the gear still on oil pump gear

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Mon, Nov 10, 2014 5:34 AM

Old Magnet

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Reply to gemdozer:

You could recheck in the cluch housing if the gear still on oil pump gear

Good point by gemdozer. Been known to break the oil pump drive shaft during installation or occasionally during use which results in running clutch without lube oil circulation.

Also check pump suction screen before tearing in to it.

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Mon, Nov 10, 2014 5:46 AM

mineoladavid

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Reply to Old Magnet:

Good point by gemdozer. Been known to break the oil pump drive shaft during installation or occasionally during use which results in running clutch without lube oil circulation.

Also check pump suction screen before tearing in to it.

[quote="Old Magnet"]Good point by gemdozer. Been known to break the oil pump drive shaft during installation or occasionally during use which results in running clutch without lube oil circulation.

Also check pump suction screen before tearing in to it.[/quote]

Thanks gemdozer and Old Magnet, you were both correct in your analysis. I pulled the clutch oil pump first. The shafts and bushings were smooth but dry and stained from lack of oil. I polished all contact surfaces, oiled and reassembled the pump to be reused.

At the start of this project, I drained the clutch, cleaned the suction screen, the sump, and made a new gasket. Got a great fit around the suction screen and the bolt holes-then messed up BIG TIME, I failed to cut the one inch hole in the gasket for the pump feed suction tube. Was I surprised to find a solid gasket yesterday when I removed the suction screen again.

So the pump and clutch has been running dry. The total (dry) run time is at most about 20-30 min of idle time and 200 yards of movement.

Think the clutch can survive this or just bite the bullet and tear the clutch all the way down?

Again thanks for your past advice.

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Fri, Nov 14, 2014 10:44 AM

Old Magnet

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Reply to mineoladavid:

[quote="Old Magnet"]Good point by gemdozer. Been known to break the oil pump drive shaft during installation or occasionally during use which results in running clutch without lube oil circulation.

Also check pump suction screen before tearing in to it.[/quote]

Thanks gemdozer and Old Magnet, you were both correct in your analysis. I pulled the clutch oil pump first. The shafts and bushings were smooth but dry and stained from lack of oil. I polished all contact surfaces, oiled and reassembled the pump to be reused.

At the start of this project, I drained the clutch, cleaned the suction screen, the sump, and made a new gasket. Got a great fit around the suction screen and the bolt holes-then messed up BIG TIME, I failed to cut the one inch hole in the gasket for the pump feed suction tube. Was I surprised to find a solid gasket yesterday when I removed the suction screen again.

So the pump and clutch has been running dry. The total (dry) run time is at most about 20-30 min of idle time and 200 yards of movement.

Think the clutch can survive this or just bite the bullet and tear the clutch all the way down?

Again thanks for your past advice.

Hard to say how it would survive. Doesn't take long to destroy things without lube. If the thing was squealing I'd be checking things that spin like the oil pump, it's idler drive gear bushing, front and rear bearings. Also check to see if the rear seal is cooked. As far as the clutch itself it probably would survive ok although the main shaft support bushing probably should be checked.

I know what I'd be telling the dealer if it occurred on their watch.

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Fri, Nov 14, 2014 11:58 PM

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