Date:         Tue, 16 Feb 2010 21:51:48 -0500
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Window cranks FYI
Comments: To: Walter Houle <whoule@ECSCONTROLS.COM>
In-Reply-To:  <vanagon%2010021621142863@GERRY.VANAGON.COM>
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 09:09 PM 2/16/2010, Walter Houle wrote:
>installed a new crank but I can't tighten the screw more than a couple of
>turns before it jams. Does anyone know the thread size? Is it OK to clean
>them up by inserting a tap?

M5 x 0.8 flat head, just measured it.  I'd make sure the screw is the
right size before messing with the hole.  Should be no trouble
running a tap in there, but you'll need a bottoming tap, or shorten a
regular plug tap* because the hole is not very deep.

*Go very carefully if it's a carbon steel tap so as not to soften the
metal.  If it turns blue or even straw-colored it's too late, and
just grinding the color off won't fix it.

Yours,
David