Changing Transmission Fluid

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cmorin

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Nov 10, 2004
64
- - Falmouth, ME
While I have added fluid to the transmission of the M-25XP in our Catalina 30, I have never fully changed the fluid. Is it routine maintenance to drain and replace the transmission fluid of a Hurth transmission or do I just keep adding fluid ? If I do need to drain it, how do I do that ? Thanks CM
 
Jun 8, 2004
3,010
Catalina 320 Dana Point
I just suck it all out every 100 hrs. at the oil

change and replace with fresh using the same "oil sucker" as the engine.
 

G15876

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Jun 4, 2004
21
Catalina 30 Toronto
or this

...I have used a large seringe to which I attached a long plastic tube to extend the reach and pump the oil from the diptsick hole. Considering the quantity of oil, it takes a few seconds to drain it. Your seringe will be good only once as the oil tends to damage the rubber in the seringe. Have fun... GG Emilie-Jolie C30 TRBS 4708
 
Jun 2, 2004
1,077
Several Catalinas C25/C320 USA
Oil

I change mine every fall along with the engine oil. Check your manual, my transmission uses a different oil than the engine. Here's a good pump: http://www.defender.com/productsearchresult.jsp
 
Feb 26, 2004
23,343
Catalina 34 224 Maple Bay, BC, Canada
Suck it out, don't drain it out

because there is a crush washer holding the nut in the bottom. You most likely don't have replacements, and should avoid the potential leaks.
 
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