[C320-list] Deck changes

[jim brown]

Thanks for the tip on the alcohol Warren. I had some really wet, soggy core behind the port locker piano hinge and dug it all out after making a cut out behind the hinge. I dried it out as best I could but I think the alcohol would have really speeded up the process. I used a hair dryer but it took a long time. I'd advise anyone with a loose screw in this area to make sure that it hasn't begin to get wet behind the hinge (the screws go through to the core in some places where the glass is thin). There was one inaccuracy in my email (no surprise here). I looked in my parts bin and the bolts (machine screws) are 1/4-20 21/2 TRUSS head not pan head bolts. I cut the excess off after tightening up. 

Jim Brown

      From: Warren Updike <wupdike at hotmail.com>
 To: C320-List at Catalina320.com 
 Sent: Wednesday, March 25, 2015 2:06 PM
 Subject: Re: [C320-list] Deck changes
   
That's interesting advice. I hope, accurate. 

Here is a note that I am adding to the procedure on rebeding chain plates:
To remove the wet and damaged core: bend a nail to 90deg angle and with a
drill motor and the bent nail, run it through the deck hole around  the
balsa core space thus removing the core to the depth of the bent nail
extension. Now, it is still wet in there and must be dried out. Squirt
alcohol into the now relieved space and allowed it to dry. One may encourage
drying by running a space heater in the cabin (it was early Spring,) for a
couple of days. When I left the boat, I did cover the deck opening with duct
tape in case it rained. I left it for about 3 days, then assured myself, as
much as is possible, that the space is dry, then proceeded with the repair.

There should be a copy of the Rebeding Chain Plates document (by Chris
Burti) on the web site but I couldn't find it.

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



-----Original Message-----
From: Doug Treff [mailto:doug at treff.us] 
Sent: Tuesday, March 24, 2015 12:11 PM
To: C320-List at catalina320.com
Subject: Re: [C320-list] Deck changes

Another email from the Warren P. at the factory, with clarified 
information:

> If your 320 is a 1996, it is very unlikely that that you
> would have to do any cutting or re-drilling. Reason being
> is that even if there was any wood at or near the chainplate,
> any moisture would not egress in very far which means virutally
> right angle tool, even an allen wrench would clear any affected
> area and then the solid filler could be pressed in thru the
> existing slot as well. The light weight stiffening core is not
> a plank form as other mfgr's use in the 70's or early 80's. They
> are small squares and will have resin on all 4 sides which
> isolates and prevents moisture travel.


---
Doug Treff
doug at treff.us