[Tigers] Metallic chatter noise

[Tony Lang]

Since you now think the noise is in the hub /water pump area, I'm with Jay, remove the fan belt but check the tension first as well as the tightness of the bearings in the alternator/generator and water pump w/ belt removed. Most likely none of the mentioned but you have to eliminate, inspect etc. Put some premium gas in the tank. 

Tony Lang (TtT) 

    On ‎Thursday‎, ‎October‎ ‎19‎, ‎2017‎ ‎02‎:‎09‎:‎26‎ ‎PM‎ ‎CDT, Jay Laifman via Tigers <tigers at autox.team.net> wrote:  
 
 I still think you should take off the fan belt and run it.  
On Thu, Oct 19, 2017 at 8:13 AM, James Lindner via Tigers <tigers at autox.team.net> wrote:

Thanks for all your replies.
I took another look this AM. This time I removed the fan shroud to eliminate that possibility and give me a better view.
Well with the fan shroud off...STILL CLATTERING. Inspected shroud...no signs of recurring contact. 
I got a good look at the fan with engine running and I could NOT see any contact on the rack. The space between the fan and the radiator was clear of obstructions.
The noise appears to be coming from the fan hub area. So that leads me back to the WP. Any other ideas?
Hope to get another set of ears/eyes on it this weekend.
Jim

Sent from my iPad
On Oct 18, 2017, at 4:40 PM, awtiger at cox.net wrote:


 
Jim:

I know this may sound stupid, but from what I'm hearing it almost sounds like there's something caught in the radiator that is rubbing on the fan.  It doesn't come across as a consistent, or constant, noise on your attachment.  

I know that I've had an issue with my fan touching my steering rack every so often, and it makes a metal-on-metal sound when it does.  Do you have any telltale marks on your fan blades or in the middle of the tube on your steering rack where it might be rubbing?

Andy Walker


On October 18, 2017 at 11:24 AM James Lindner via Tigers <tigers at autox.team.net> wrote:

Hi

Been a while since I posted, but having a problem. I hope the attached 10 sec video goes through.

Getting a metallic clatter from front of the engine.

I can not see anything making contact.

The fan, fan pulley and shroud are secure.

With a stethoscope I checked for internal clatter at the water pump, timing cover, generator and valve covers. All internals sounded to be running smoothly.

Clatter gets worse as rpms increase but as I reach cruising speed the clatter seems to go away, although exhaust might be drowning it out. If I slow down and accelerate again it gets worse again.

Thanks

Jim

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