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Re: [T3] Need help with engine problem diagnosis


On Mon, 2006-08-07 at 15:48 -0400, BOB2TYPE3S@aol.com wrote:
> In a message dated 8/7/06 12:11:30 PM Eastern Daylight Time, 
> norman.roush@hp.com writes:
> 
> << I was driving home Friday afternoon and heard a noise that sounded like
>  flapping loose sheet metal.  I did not notice any change in engine
>  performance.    With the
>  engine cover off the noise sounds like something rattling around in the
>  engine case but is not constant.  It sounds like a crack or bang but not
>  terribly loud. >>
> 
> This sounds like one of the small screws that hold the aluminum cooling fan 
> shroud on came loose and is bouncing around in the depression off the back side 
> of the fan. :O
>  The cure for this is to pull the cooling boot, generator, outer fan housing, 
> and fan off the engine, so you can get access to the screw that "fell" out. 
> Russ says the stock muffler can stay put, and I've even tried it myself to 
> verify that it's possible. You'll probably need to replace the screw, and you 
> might want to check the other 3 while you're there, and even remove them and 
> loctite them back in place. I normally add some silicone to the pockets (as added 
> insurance) after the screws have been loctited and torqued to spec. Jim A. even 
> suggests tapping them a little deeper and using a longer screw with loctite. 
> I hope this helps.
> 
Keith even did one under a tree in Omaha, Ne going to the Invasion. 
The problem we have with these bolts, is that from the factory, they had
star washers under the head. Over the years, after the engine has been
torn down, the star washers are left out. Blue 242 Loctite is the
answer,  and tapping the holes deeper sure helps.
-- 
russw <russw@classicvw.org>

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