[C320-list] Perkins M30 zinc?

[Jon Vez]

Warren,

With a flexible shaft coupling you need to run a jumper wire from one side to the other to maintain the bonding...

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Warren Updike
Sent: Friday, July 08, 2011 8:19 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Perkins M30 zinc?

So, what happens when a flexible shaft coupling is installed?  Does it provide a way to maintain the bonding?

-----Original Message-----
From: Jeff Hare [mailto:catalina at thehares.com] 
Sent: Thursday, July 07, 2011 3:03 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Perkins M30 zinc?

Our Yanmars don't have zincs. Many other engines don't either. One problem with zincs is they can crumble and damage the engine water pump. Also if the engine is bonded well to the shaft, these zincs should do the job.

That's my understanding, but there may be different reasons also.

-jeff

jpmesa at aol.com wrote:



I have noticed some of the Yanmar engine owners talk about engine zincs. I have the older Perkins M30 (Hull #112). 
I have looked everywhere on the engine and surrounding area and I haven’t found a zinc. 
Any other Perkins owners know if we have one? And if not, why? 
Thanks, John Holokai 2