Date: Tue, 27 Jul 2004 17:44:18 -0700
Reply-To: BenT <syncro@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: BenT <syncro@GMAIL.COM>
Subject: Re: Loud clanking sound from exhaust - pushrod unseated?
In-Reply-To: <b3a1e7ad04072714361f8e949d@mail.gmail.com>
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Craig,
Van-O-Rama is tentatively set for 09/11/04. The Dept. of Park & Rec.
gave me THAT date. 9am-dusk.
BenT
http://members.aol.com/bentbtstr8/myhomepage/index.html
On Tue, 27 Jul 2004 14:36:54 -0700, Craig Oda <craigoda@gmail.com> wrote:
> Ben,
> thanks for the information. I have a spare cat and muffler that I
> plan to swap in this weekend. I thought it might be the cat too. I
> did have a problem with extremely rich, sooty, exhaust that probably
> killed my cat.
>
> Thanks also to Ken Wilford and Karl Wolz with their suggestions for
> loose nuts. I did take the valve covers off and inspected the rocker
> assembly. Looked okay on Sunday night. At least, I thought they
> looked okay. I will check again.
>
> I swap out the cat and report back. It appears that I probably don't
> have to worry about a broken exhaust valve.
>
> BTW, what day is van o' rama?
>
> Thanks.
>
> Regards,
> Craig
>
>
>
> On Tue, 27 Jul 2004 12:32:07 -0700, BenT <syncro@gmail.com> wrote:
> > Clanking sound sounds like broken pieces in the catalytic converter to me.
> >
> > BenT
> > http://members.aol.com/bentbtstr8/myhomepage/index.html
> >
> >
> >
> > On Tue, 27 Jul 2004 09:43:03 -0700, Craig Oda <craigoda@gmail.com> wrote:
> > > I'm trying to plan out my weekend and upcoming camping trips and am
> > > trying to get a feel for how much time I'll have to spend to get my
> > > van back on the road.
> > >
> > > I have a loud clanking sound from my engine. It's not the tick from
> > > lifters. It is considerably louder. There definitely seems like
> > > metal is rattling around. It appeared to sound like a nut was
> > > rattling in the exhaust. (I don't think there is one, but it sounded
> > > like this).
> > >
> > > The problem occurred 30 miles from home last weeknd and I drove home
> > > on the freeway with the loud rattling sound. No power loss and no
> > > drivability problems. However, the sound is really loud.
> > >
> > > Joel Walker was kind enough to suggest that one of the pushrods might
> > > have come unseated from the lifter. This situation is possible since
> > > I just changed two lifters about a month ago and had the pushrods out.
> > > Also, I adjusted the exhaust valve on cylinder 3 considerably. I had
> > > a problem with air in the lifter and the valve was about 5 turns too
> > > tight. So, I loosened it up so that it was barely touching, then
> > > tightened it down about 1 1/2 turns. I wonder if air was still in the
> > > lifter and somehow the pushrod became unseated.
> > >
> > > I may not have time to take out the pushrods until the weekend. If a
> > > pushrod is unseated, what else should I inspect for damage.
> > >
> > > Also, do other people suspect a pushrod? The problem began while I
> > > was driving on the freeway. I continued driving for another 30 miles,
> > > so I don't think it's a valve clanking around in the exhaust. I took
> > > off the u-pipe for the exhaust and there's no metal in there.
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