[DMCForum] Re: Exhaust Manifold Questions
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[DMCForum] Re: Exhaust Manifold Questions



Rob,

I would have to say its equally loud... cold or hot.

On the thought of clogged oiling passage... would you recommend
trying an engine flush product or is that just asking for more
trouble?

Also, would it be reasonible to try a heavier weight oil (Im using
10w-30 now) to see if the noise quiets down?  Say, maybe a 20w-50?

Thanks, Ron

--- In DMCForum@xxxxxxxxxxxxxxx, <rob@xxxx> wrote:
>
> Ron,
>
> It's probably not an exhaust leak as it's loudest when the engine
is cold. A
> noisy rocker on the other hand is loudest when the engine oil is
hot. It
> could also be a worn cam lobe or a partially clogged rocker oiling
passage.
>
> Rob Grady
>
> P.J.Grady
>
> -----Original Message-----
> From: DMCForum@xxxxxxxxxxxxxxx [mailto:DMCForum@xxxxxxxxxxxxxxx] On
Behalf
> Of gullwingmag
> Sent: Friday, October 28, 2005 10:29 AM
> To: DMCForum@xxxxxxxxxxxxxxx
> Subject: [DMCForum] Re: Exhaust Manifold Questions
>
> Rob
>
> While we are talking exhaust gaskets, could you describe the
> difference in sound between a exhaust leak and a valve making noise?
>
> I have a "tick" that you only hear under acceleration, doesnt
change
> with engine temp, and is quiet at idle or cruising rpms.  It also
> goes away as you approach the 4K rpm range during a hard
> acceleration.  Im leaning towards a gasket leak... any thoughts...
> advice?
>
> Ron
>
> --- In DMCForum@xxxxxxxxxxxxxxx, <rob@xxxx> wrote:
> >
> > Mark,
> >
> > I strongly recommend replacing all of the studs (both 7&10mm). We
> offer a
> > complete exhaust kit with all stainless studs or you can buy them
> > separately. If you don't change them all often times one or two
> studs will
> > break soon after the job requiring you to do the whole thing
over.
> It's just
> > not worth the risk.
> >
> > Rob Grady 
> >
> > P.J.Grady Inc.
> >
> > -----Original Message-----
> > From: DMCForum@xxxxxxxxxxxxxxx [mailto:DMCForum@xxxxxxxxxxxxxxx]
On
> Behalf
> > Of DMCVIN6683
> > Sent: Wednesday, October 26, 2005 5:35 PM
> > To: DMCForum@xxxxxxxxxxxxxxx
> > Subject: [DMCForum] Exhaust Manifold Questions
> >
> > The studs that are on the heads that hold the exhaust manifold to
> it
> > are all on my car except 1 has broken off.
> >
> > My question is after i remove and replace the 1 stud cant i just
> clean
> > the threads on the old studs and leave them alone and reuse them?
> >
> > Do i really need to install new studs?
> >
> > Mark V
> >
> >
> >
> >
> > 
> > Yahoo! Groups Links
> >
> >
> >
> > 
> >
> >
> >
> > --
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.1.361 / Virus Database: 267.12.5/148 - Release Date:
> 10/25/2005
> > 
> >
> > --
> > No virus found in this outgoing message.
> > Checked by AVG Free Edition.
> > Version: 7.1.361 / Virus Database: 267.12.5/150 - Release Date:
> 10/27/2005
> >
>
>
>
>
>
>
>

> Yahoo! Groups Links
>
>
>

>
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.361 / Virus Database: 267.12.5/150 - Release Date:
10/27/2005

>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.361 / Virus Database: 267.12.5/150 - Release Date:
10/27/2005
>






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