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Strange Noise and no Movement

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randteed

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Sep 27, 2020
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Craven, Sk. Canada
1972 CC model 149. Its been running great. Now the motor still runs fine but grinding clanking noise when I try to engage hydrostat. Troubleshooting repair suggestions? I'm not sure where to start.
 

kmcconaughey

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Kraig McConaughey
That can't be good. First thing to do is remove the tunnel cover (the frame cover between the seat and the dash pedestal) and inspect the driveshaft and couplings. Also check the Hy-Tran level, could be low or out. Hopefully it's not out...
 

dschwandt

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Mar 31, 2012
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David Schwandt
how low?
And how did the fluid look, like milk or melted ice cream, I hope not!
 

dropte

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Aug 21, 2017
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David Ropte
Looked pretty much like fluid usually does maybe a bit more opaque. Down about an inch from fill port. Nothing obviously disconnected under the cover
That rag joint looks like toast. Is it still intact?
 

kashaver

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Nov 29, 2014
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Kelvin Shaver
When you turn it, do you see the shaft going into the pump turning too? I think there is a pin through the flange that sometimes shears.
 

dschwandt

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David Schwandt
Check BOTH ends of the driveshaft.
Repair or replace as needed and from what I see in your pictures, I'd do it sooner rather than later..
 

dgunn

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Aug 29, 2015
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David W Gunn
Yes it’s still intact and will turn easily
It may be turning easily because a pin has sheared. Check the pins at both ends of the driveshaft. Replace that rag rag joint too. I had one fail on one of my 149s. The drive shaft swung wide, wiped out the filter and almost took out the metal hydraulic lines. Oh, the fan was wiped out too.
 

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