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Member Since 11 Nov 2009
Offline Last Active Today, 05:21 AM

Posts I've Made

In Topic: When to replace Standing Rigging?

18 January 2017 - 09:04 PM

Galling is a common problem with SS threads on bronze. Worth being a bit obsessive lubing those threads particularly when new. Once they've stuck together it's hard to fix 'em. Could just be gunk, of course. I'd try soaking / rinsing with penetrating oil but...

In Topic: Jules Verne Trophy 2016

18 January 2017 - 05:17 PM

^^^ Thank you for that!

In Topic: I have a light question (115v vs. 230v)

16 January 2017 - 07:42 AM



If I googled up the right diagram the light has a transformer. Run on half the voltage (RMS) it will deliver about half the designed voltage to the bulb and the bulb will produce less light than it was designed to.

In Topic: Saildrive emulsified oil

15 January 2017 - 03:20 AM

May be you have an older model. mine has an oil passage for the oil to be suctioned out or pushed out by air pressure.  
here is the manual that shows the oil draining procedure for when the boat is in the water on 6.2.1


I believe those are instructions for the SD 50/-4T. The instructions for the 20 are under 6.1.1 and are as I quoted above.

In Topic: Saildrive emulsified oil

14 January 2017 - 10:04 PM




Regarding SD-20 oil changes, don't you have to haul the boat to change the oil?


No, there is a plug on the top of the leg designed to be used to connect a suction pump to remove the oil while the boat in in the water. there is also a way to pressurize the leg with air and push the oil up and out. 


Maybe discussing different sail drives here? On the SD-20 there is a plug and dip stick on the top but they are designed for inspection. Officially you're supposed to drain the oil from the bottom of the leg. In practice people do remove as much oil as they can from the top and add in new but it is an imperfect process.



SD-20 has a plug at the base of the upper gear box on the starboard side that is connected to a tube that goes down to the bottom  of the leg and is designed to be used for oil removal when the boat is in the water.   Read your manual and you will see this method to change the oil


Yanmar sd-20? We are talking Yanmar and size 20, right? In the manual that I have there is only one approved method for oil changes:


"Put the hull on a block. Drain the oil by removing the lower gear case drain plug and the upper gear case oil dispstick."


There is no tube to the bottom of the leg on the sd 20s that I own.