I am a recent purchaser of 1994 Catalina 36 Mk II with M35 engine. I noticed it has no dipstick for checking the transmission. Any advice on how to do routine maintenance and topping off fluid? There doesn't appear to be a direct access to the top of the transmission assembly itself- I can only reach it from behind via the aft cabin access. Do i just vacuum out the existing fluid and then syringe in replacement?
Suggestions appreciated.
Assuming you have the Hurth HBW100 transmission, there is a fill plug on the top. It takes an 11/16" socket to remove. The plug has a dip stick. To check the level, don't screw the plug in, just insert it and pull it out. There is a same size drain plug on the bottom. Fluid should be changed annually.
Ron St. Onge
1995 Catalina 36 MKII Hull 1384
We have a 2005 MKII with an M35 and a ZF 10M transmission. The dip stick is attached to a nut secured on the top of the case casting. Every season, I suck the old fluid out with a hand pump and add new fluid via a hose and funnel. It takes 12 oz of Dextron III. The access is from the aft berth and is not exactly comfortable to work on.
To my understanding, over- filling the transmission will actually reduce lubrication due foaming.
Paul & Wendy Keyser
"First Light"
Rye NH
2005 C36 MKII #2257
Wing, M35B