[C320-list] Transmission lubricant

[Jeff Hare]

Perkins may use ATF, but the transmission used with the Yanmar 3gm30f (Kanzaki KM2P cone clutch) uses a small amount of straight 30 weight HD engine oil for splash lubrication.

Thanks Denny, that's a great video you posted on changing it.  ( https://youtu.be/9Gx3Uqop_1I )

One tip with that vacuum oil pump system is to get a 12-14" length of 1/4" copper tubing like you'd use for your fridge ice maker at home.  Straighten it out and insert it in the end of the plastic tubing you get with that vacuum pump. Now when draining out hot/warm oil or transmission oil, you can quite precisely control where the end of the tube goes without worrying about it curling around inside and leaving excess oil in the bottom of the pan.

-Jeff

-----Original Message-----
From: C320-list <c320-list-bounces at lists.catalina320.com> On Behalf Of Dave Hupe
Sent: Thursday, August 6, 2020 7:21 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Transmission lubricant

I don't have it handy, but remember my Perkins manual saying use ATF.  I will check this again and inform if I find different. Since we bought our boat in 2017, I have used full synthetic ATF without issue.  I have changed it along with the engine oil annually (as others have indicated since I have the pump there anyway).
Dave Hupe
1994 C320 #32