[C320-list] Crack Between Hull and Keel
Dave Hupe
hoopdtwo at yahoo.com
Mon May 1 06:00:06 PDT 2017
Art-
On Tortuga, where do you have a smaller "rear" bolt? I have 10 large equal sized (1") bolts visible/accessible directly in the bilge area. Is your smaller bolt hidden somewhere?
Thanks, Dave Hupe
Hull #32
Holland, MI
--------------------------------------------
On Sun, 4/30/17, Art Harden <artstree at aol.com> wrote:
Subject: Re: [C320-list] Crack Between Hull and Keel
To: C320-List at Catalina320.com
Date: Sunday, April 30, 2017, 4:12 PM
I thought I would weigh in on the
320 Catalina smile. In past emails I inquired as to the
torque values for the keel bolts. Based on all emails
back-and-forth I think it was resolved to be somewhere
between 100 and 235 foot-pounds. Using my mechanics mind and
a history of torquing a lot of bolts, I decided to split the
difference.
Today I finally
managed to bring my sockets and torque wrench to the boat
and check Tortuga. There are two sizes of bolts on the keel
and I torqued them a different values. When I checked the
large bolts I was surprised to find that some of them were
as low as 70-80 foot pounds. Using my mechanics intuition, I
torqued them to 175 foot pounds. When I hit the 100 pound
mark, the nut still seem to lose to my way of thinking. So I
kept going to the 175 which felt right based on the size of
the bolt.
The smaller bolt
at the back of the keel was only 40 foot pounds. I torqued
it to 80 and that felt right.
My biggest surprise was how much I was able to
actually torque each large nut. I think only one nut was
snug such that it did not move when the 175 foot-pounds was
applied.
I'm not sure
if this helps anyone else but it will make me feel better
knowing everything is snug. We will find out tomorrow is
Tortuga goes in the water in the morning.
Art Harden
Tortuga Catalina 320
937-477-5544 (m)
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