Exhaust, eh? That's what my dad thought it was, also... we looked and noticed that the exhaust pipe seemed to have gone missing, but I honestly can't remember if it was there when we bought it... (I know, I know, I'm a bad owner.) I assume there's not much I can do 'at home' about this? I guess it's probably alright to drive until we can get an appt. with the Vanagon guy in town, anyway. It's a little incredible to me that this is all that it could be, cause the difference in volume is just insane. And yeah, there's quite a bit of backfiring also. And you could be right about the psychological aspect of having a crazy loud engine. This sounds pretty plausible to me, are there any other possibilities of what it could be? Thanks again, Devin Chalmers Begin forwarded message: > From: Clive Smith <clive.harman-smith@NTLWORLD.COM> > Date: Sat Aug 31, 2002 02:26:24 America/Anchorage > To: vanagon@GERRY.VANAGON.COM > Subject: Re: Re: '85 Vanagon with a loud identity crisis > Reply-To: Clive Smith <clive.harman-smith@NTLWORLD.COM> > > ----- Original Message ----- > From: "Kim Brennan" <KimBrennan@AOL.COM> > To: <vanagon@GERRY.VANAGON.COM> > Sent: Saturday, August 31, 2002 6:48 AM > Subject: Re: '85 Vanagon with a loud identity crisis > > > In a message dated 8/31/02 1:31:49 AM, seraphim@GCI.NET writes: > > >> Apparently, my Van thinks she's a Harley Davidson. When she idles, >> there's an odd, loud PUT-PUT-PUT that gets even worse when I >> accelerate. She seems to be running fine, if anything the acceleration >> seems better than normal, except that the problem she has with sort of >> hesitating at stop lights has gotten more frequent and more >> pronounced. >> > >> Hole in the exhaust system. Might be in the pipes to the cat, or the > muffler > itself (but probably before the muffler). Since mufflers tend to > be...slightly restrictive on the flow of exhaust gases, at least on > most > cars, when you have a hole in the system ahead of them, you may notice > more > power and an easier running motor. Of course you also notice how LOUD > the > engine is (after all, it is Exploding gas to make that power!).. > > I'd suggest that most holes in exhausts actually reduce power. A weak > mixture is one result (hence coinnected to rough running and > backfiring on > the overrun), splashy irregular shockwaves in the syetm etc. etc. Any > supposed power gains are usually psychological due to the loder noise. > This > is in contradistinction to a properly designed shorter or more open > 'tuned' > exhaust, which don't always give the increased power they are supposed > to > and if they do, only in a narrower power band, with poor running and > reduced > torque elsewhere. > > Sorry, but this doesn't help your question, and I'm not suggesting > that Kim > is wrong about a blown exhaust - > > Clive > '88 Syncro Transporter > |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.