Date: Wed, 31 Dec 2003 23:18:28 GMT From: Paul Halliday <pjghnopsamyonder.co.uk> Subject: Re: Couple of C900 Questions..
in article bsv7r7$1ndmh$1nopsam63316.news.uni-berlin.de, Mike P at stickitnopsamranus.com wrote on 31/12/2003 19:25: > > "Grunff" <grunffnopsam.com> wrote in message > news:1072895410.21716.0nopsam.uk.clara.net... >> Paul Halliday wrote: >> >>> Is your exhaust manifold cracked? My first 900 sounded like it was > spitting. >>> This could be what you're describing as tapping noise. >> >> Good one Paul - I'd completely forgotten about that. A cracked >> exhaust manifold, or even a slight leak between the manifold and >> the head can sound exactly like Mike's description, and come on >> under load. > It sounds exactly like it. One point I will make is that the noise is LOUD > when the engine is stone cold, and gets much quieter > when the engine has warmed up. If it was a crack opening up when hot, I'd > expect the opposite.. Yeah, I used to know it had warmed up when the noise started :) Paul 1989 900 Turbo S http://saab.go.dyndns.org/