[Tigers] Mechanical clatter- Friday AM Test

[Jay Laifman]

I'm still voting for the fan.  Especially since it looks you have a flex
fan and the sound  goes away at higher rpm.   Have you watched the rear of
the fan blades and all edges of the fan all the way around and there is
nothing even remotely close?

I don't recall the Tiger generator very well.  Does it have a fan on the
back of the pulley?  It could be that the bearing is worn enough that when
there is tension of a belt on the pulley, it pulls the generator pulley and
its little fan over just enough of motion that it is touching the face of
the generator body or a screw that sits up a bit.

On Fri, Oct 20, 2017 at 7:49 AM, James Lindner via Tigers <
tigers at autox.team.net> wrote:

> Good Morning Listers
>
> Thanks for all the input. This morning I removed the fan belt...and
> voila...the noise disappeared. Video with sound is below. I had a before
> video also but it made the email too large.
>
>
>
>
>
>
> I made a checklist of yesterday’s input and here are the results:
>
> Pulley hubs: All secure, no wobble
> Spin fan & gen: No odd sounds...no contact with anything.
> Dipstick: Straight
> Fan & individual blades: Secure
>
> Water level: Perfect
> Gas: Shell 93 octane...always.
>
> So what do you think. The fan is not hitting anywhere. With the fanbelt
> off the timing chain would continue to run...but no noise. I think those
> results rule our fan contact and stretched timing chain.
>
> That leaves me with failing water pump. Although I am still a bit
> concerned that I did not hear any noisy bearings when I spun the fan or
> listened at the pump cover with the stethoscope.
>
> Your thoughts/ideas please.
>
> Thanks
>
> Jim
>
>
> Sent from my iPad
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