Re: [ihc] Cooling fans...

["Ryan Moore" <baradium@xxxxxxxxxxx>]

----- Original Message ----- 
From: "John Hofstetter" <hofs@domain.elided>
To: "Ryan Moore" <baradium@domain.elided>
Cc: "ihc-digest" <ihc@domain.elided>
Sent: Saturday, June 05, 2004 13:00
Subject: Re: [ihc] Cooling fans...


>
> On Jun 5, 2004, at 10:46 AM, Ryan Moore wrote:
>
> > Believe me, I tried everywhere.  Original was grade 8, so I went with
> > that,
> > but *no one* had the spec'd hardware in grade 5 either.    It was 3/8"
> > by
> > 5/8" long.  No one had 5/8" long.  Closest I could get was 3/4".   The
> > flat
> > washers weren't that thick , but I wasn't comfortable that I wouldn't
> > bottom
> > out without them (I was wondering if they would bottom out even with
> > the
> > washers, and the bolts very well may be touching the bottom).
>
> Seems to me that you need to know for sure whether or not those bolts
> are bottoming out. Why don't you try putting one in without the flat
> washer and see how loose it is. That should tell you what is happening
> with the flat washer in place.
>

Well, I already have everything together now.    What I did do was test fit
one of the bolts without any washers, both without the fan and with the fan.
Then I compared what I had left of the bolt sticking up still with the
thickness of the washers to be used.   Honestly, it was pretty close, but I
was able to tighten them down enough to completely compress the lock
washers.  The instructions said that, with the lock washers, they were
supposed to be torqued to 18-20 ft/lbs.  Having no torque wrench, I just
made them nice and snug.

> > I put a dab of RTV Blue on all the threads to help keep them from
> > backing
> > out on me.
>
> I've never used RTV as a threadlocker. Does it work for that purpose?
> You need to get yourself some Loctite blue (242)  for future use.

I've had a bad experience with loctite.  I refuse to use it for anything I
may ever want to remove in the future.

> >
> > Will I be ok with the flat washers there?  That literally was the
> > *only*
> > thing I could do with it.  As it is right now there is the small flat
> > washer
> > and the lock washer on top of that with the dab of RTV on the threads.
>
> Yes, it will be OK if the bolts are pulling up tight. Maybe with the
> fan being of thinner metal, the washers might even be a good idea.
>
> John Hofstetter
>

The fan's metal is still pretty thick, just not as thick as the previous
one.

I'll keep an eye on it.  I think I have it good and snug though and it
shouldn't go anywhere.

Thanks,
Ryan


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