[Tigers] Metallic chatter noise

[Ron Fraser]

Jim
	If it is a metallic rub you should see shiny metal on the edge of
the fan, the rack or somewhere.

I suggest you remove the fan belt to see if the noise goes away; that would
mean either the water pump/ fan or Gen / Alt is the problem, if the noise
continues then it's with the engine somewhere and you'll have to continue
looking.

Double check all the bolts are tight.

Ron Fraser

-----Original Message-----
From: Tigers [mailto:tigers-bounces at autox.team.net] On Behalf Of James
Lindner via Tigers
Sent: Wednesday, October 18, 2017 2:28 PM
To: Tom Witt <atwittsend at verizon.net>
Cc: tigers at autox.team.net
Subject: Re: [Tigers] Metallic chatter noise

Tom

Thanks. That is now 2 votes for worn engine mounts causing some sag which is
resulting in contact somewhere. I will definitely check that out.

Jim
Sent from my iPad

> On Oct 18, 2017, at 2:23 PM, Tom Witt <atwittsend at verizon.net> wrote:
> 
> "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."
> 
> Could come from many sources, a lot that you already mention. The thing
that I come back to those is the comment above. As the engine accelerates
the engine torques in its mounts. Over time the mounts can compress or tear.
I'd still be incline to check the fan to shroud (or fan to anything else, my
recollection is it comes close to the rack).
> 
> 
> -----Original Message----- From: James Lindner via Tigers
> Sent: Wednesday, October 18, 2017 8:24 AM
> To: tigers at autox.team.net
> Subject: [Tigers] Metallic chatter noise
> 
> 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
> 
> Sent from my iPhone
> 
> 
> 
> 
> 
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