[Shotimes] Rod Knock or Tensioner Slap?

[John J. Weidenbenner]

Yup, I'm going by my experience with a 3.8 Windstar, 62k miles, that
antifreeze had seeped into the crankcase, slowly wearing the rod bearings.
It would rod knock at start up cold and rattle for a few blocks
progressively getting worse.

Perhaps Ron's track related damage manifested itself differently? Why did a
SHO with 86k miles loose it's rod bearings?

Anyway more diagnosis should occur.

John W.

----- Original Message ----- 
From: "Ron Porter" <ronporter@prodigy.net>

Nope, in fact I would say that mine were louder when hot, but we aren't
talking much of a difference in sound here.

Ron Porter

-----Original Message-----
From: shotimes-admin@autox.team.net [mailto:shotimes-admin@autox.team.net]
On Behalf Of John J. Weidenbenner
Sent: Wednesday, November 12, 2003 6:02 PM
To: 'Leigh Smith'; 'SHOTIMES'
Subject: Re: [Shotimes] Rod Knock or Tensioner Slap?


>Doesn't do it when cold. Only when warm.

I would expect rod bearings to be loudest when cold. Get other people to
listen to the noise before blaming the rod bearings.

John W.

----- Original Message ----- 
From: "Ron Porter" <ronporter@prodigy.net>
To: "'Leigh Smith'" <leighsm@comcast.net>; "'SHOTIMES'"
<shotimes@autox.team.net>
Sent: Wednesday, November 12, 2003 4:37 PM
Subject: RE: [Shotimes] Rod Knock or Tensioner Slap?


> FWIW, it seems that the rod bearings make their sound between 2-3K rpm.
I'm
> not familiar with the tensioner noise, but the 2,400 rpm sound seems like
> bearings.
>
> Also FWIW, after my rod bearing noise in Frederick was diagnosed....after
a
> day of dragstrip runs and a long drive back to the hotel, I then drove
(not
> going over 4K rpm) 550 miles back home, then changed the bearings (the
> car....a '95 MTX.....had 86K on it). The bearings were absolutely trashed,
> and it looked like a couple had spun, but the crank was OK. See the Rod
> Bearing pics:  http://www.picturetrail.com/gallery/view?username=rsporter
>
> I would suggest not driving it, but I don't think there will be a problem
if
> you drive it easy.
>
> Ron Porter
>
> -----Original Message-----
> From: shotimes-admin@autox.team.net [mailto:shotimes-admin@autox.team.net]
> On Behalf Of Leigh Smith
> Sent: Tuesday, November 11, 2003 10:51 PM
> To: SHOTIMES; Ron Porter; Mark Nunnally; Don Donelson; Donald C. Mallinson
> Subject: [Shotimes] Rod Knock or Tensioner Slap?
>
>
> Does anyone know how to tell these two noises apart?
>
> I just realized my new 94 SHO makes more engine noise than my 250k '89
did.
> It has about 100k on it, and there is a light tapping noise about 2400
> rpm with light throttle.
> Seems to be in second gear only. Can only hear it with the radio off.
> Doesn't do it when cold. Only when warm.
> Sounds a little like a rod knock, but very light, not like any rod knock
> I ever heard.
>
> I guess the big question is, do I need to stop driving it until I can
> pull the oil pan?
>
> Lee
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