[Tigers] Mechanical clatter- Friday AM Test

[Alpine J]

Another option.  Remove the fan. Bolt on the pulley only.  Then run it.  

> On Oct 20, 2017, at 11:53 AM, James Lindner <jliny5 at cox.net> wrote:
> 
> So here is the plan...
> 
> Another Local Tiger Guy is coming over tomorrow to add another set of eyes and ears. I can not find any evidence of contact by the fan but We will carefully inspect the area to look for any signs of fan contact at rest and with engine running with and without the belt. Hopefully, after that I can make a command decision on what to attack...likely the water pump.
> 
> I have a brand new water pump from SS sitting on the shelf. I am told the pumps from SS have the hub pressed down into the proper position. When we replace the pump I will also replace all the hoses since they are the ones that were put on when the car was restored 15 years ago. Those I will need to order.
> 
> Thanks for all the help and I will show the final resolution once all is complete...might take a little while to get it all done.
> 
> Jim
> 
> Sent from my iPad
> 
>> On Oct 20, 2017, at 12:03 PM, Jay Laifman <jay.laifman at gmail.com> wrote:
>> 
>> 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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>> 
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