[C320-list] Forespar thru-hull

[Warren Updike]

Yes, that is what Forespar has published. So, when at the Annapolis Boat Show, last year, I saw a container of MareLube I asked the Forespar rep., "What's up with this?" He said they previously said it was not necessary to lube them because they were concerned that people would use the wrong product. Thus, they came out with their own grease which is what I use. Result: no improvement.

Warren and Pattie Updike
1994 C320 "Warr de Mar" #62

-----Original Message-----
From: Dick Walker [mailto:dickwalker at att.net] 
Sent: Monday, September 21, 2015 3:45 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Forespar thru-hull

The manufacture indicates that they need no lubrications.

I Quote

"FORESPAR® MARELON® Thru-hull/seacocks are corrosion free and provide great peace of mind in that regard.
They are relatively maintenance free. Generally, lubrication is not required. What is required is to open and close them
on a regular basis (4 times a year minimum). The frequency this is required is determined by two (2) things, whether the
valves are routinely kept open or closed, and the rate of
sea growth (weed and barnacles) in your area. If the rate of
fouling is high and the valves are not actuated regularly,
this build up of growth can cause any valve to turn hard or
not at all. If the valve becomes stiff due to lack of use and
sea growth build-up, it must be cleaned. The restriction of
flow into the valve may cause harm to the machinery it
serves and the valve may seize if not maintained. DO NOT
DISASSEMBLE VALVE OR LOOSEN BOLTS EXCEPT IN
EXTREME EMERGENCIES. All valves are factory pressure
tested before shipping. Any adjustments to the bolts
will void this testing and may void warranties."


C-320 IA Regatta 2016
C/o Richard Walker
740 Olive Ave.
Coronado, CA 92118
(619) 435-8984
Dickwalker at att.net






-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of John Meyers
Sent: Monday, September 21, 2015 12:28 PM
To: C320-List at catalina320.com
Subject: Re: [C320-list] Forespar thru-hull

What is the best lubricant for thru hulls? I heard something about silicone grease. I was going to give it a try after going on the hard. I would be interested is some experience from any of you.

AND I hear a challenge to some problem solving as to how to remotely open and close the cooling water thru hull.  It is time to enlist my engineer type son. If we come up with something I will let you all know.

John Meyers
#406 Wind Chime
Muskegon, MI

On Mon, Sep 21, 2015 at 3:08 PM, Chris Nichols <cinichols at btinternet.com>
wrote:

> Funny thought perhaps but is it the same stiffness both opening and 
> closing?
> When closing the valve there is likely little or no pressure 
> differential either side of the ball.
> When opening, sometime later, there could be a difference and the ball 
> could be being forced into the housing by outside pressure which could 
> be making it stiffer. This would only happen if the water on the pipe 
> side within the boat were to be drained to below the waterline when 
> the valve was closed.
>
> Chris
>
> Sent from my iPad
>
> > On 21 Sep 2015, at 19:56, Warren Updike <wupdike at hotmail.com> wrote:
> >
> > My raw water thru-hull is very hard to operate, besides being 
> > located
> under
> > the aft berth. This past spring, I removed the top to access the 
> > ball and thoroughly lubricated it. After reassembling, it worked 
> > easily out of the water. Once in the water, it became hard to 
> > operate once again as though
> I
> > hadn't bothered to lube it. I've noticed this with the other valves 
> > as
> well.
> > Out of the water: no problem. In the water: stiff to operate.
> >
> > Anyone have ideas or suggestions?
> >
> >
> >
> > Warren and Pattie Updike
> >
> > 1994 C320 "Warr de Mar" #62
> >
> >
> >
>