[V8] Fuel leak/valvetrain noise/oil type

[kyle leatherwood]

I had a valvetrain noise in my old blue 90 V8 AT that never went away, all timing belt rollers, bearings, oil pump bearing, viscus fan bearing, lifters, and even the oil pump replaced at Keith T.'s recommendation.  Needless to say, up until I sold it, it always sounded like someone dumped a bucket of ball bearings in the engine while it was running.  It never once had any driveability issues, even Bruce M told me once after driving it was one of the nicest 90's he had ever driven! Good luck trying to find the noise!  I wasted 2 years of my life chasing it.
 
Kyle
 

> From: ekellock at gmail.com
> To: ron_01056 at yahoo.com; diemarthadie at aol.com
> Date: Thu, 15 Sep 2011 15:43:50 -0600
> CC: v8 at audifans.com
> Subject: Re: [V8] Fuel leak/valvetrain noise/oil type
> 
> I run diesel spec 15W40 year round. Was using only Rotella, but have
> branched out to Mobil from Costco and/or Sams also. Also, used to use
> Rotella 5W40 synthetic in winter. Last year I cheaped out and stayed with
> non-synth and it was fine. I did however use Mobil 1 synth 5W40 in one of
> them since I got it cheap at Walmart. I've changed back and forth between
> non-synth and synth without any noticed issues. One thing that's nice about
> the diesel grade is it's usually available in gallon jugs instead of 5-quart
> jugs. Two gallons per car plus a filter makes for a fairly pricey oil
> change. I was "cured" of my longterm Mobil 1 addiction after owning my 1st
> V8 for a year or so. I was still doing oil changes every 3k miles then too.
> Now it's twice a year, whether it needs it or not. ;-) I think I even
> skipped the filter change last fall, or was it this spring? No matter,
> that's not going to be the norm; I either just didn't have one or was too
> lazy to unbury it from the corner of the garage. Having 5 V8's, I think I
> may be taking them for granted a little. I must make amends.
> 
> The perceived valvetrain noise might be a timing belt idler or a fan or oil
> pump bearing (the same part, but there are two in there). I think I have a
> similar issue on two of mine at this point, unfortunately not near timing
> belt change time.
> 
> Ed
> 
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