Strange Noise and no Movement

[randteed]

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]

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...

 

[randteed]

Thanks, I'll check the fluid level and go from there. I will let you know.

 

[randteed]

Hope you don't mind questions. Fluid is low, I have the cover off. What should Iook for?do?

 

[dschwandt]

how low?
And how did the fluid look, like milk or melted ice cream, I hope not!

 

[randteed]

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

 

[dropte]

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?

 

[randteed]

Yes it’s still intact and will turn easily

 

[kashaver]

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]

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..

 

[randteed]

Ok. Thanks for your time and suggestions

 

[dgunn]

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.

 

[randteed]

Thank you. Is there a service manual on this site to explain how to get at the pins?

 

[danderson]

http://ccmanuals.info/pdf/1x8-9 & QL Service Manual.pdf

 

[randteed]

This is an amazing forum thank you!!