Date: Sat, 16 Sep 2006 18:48:40 GMT
From: Paul Halliday <>
Subject: Re: Saab 99 engine ticking

in article, at wrote on 15/09/2006 05:32: > a few days after getting her running, a new ticking noise developed in > the engine. At speed, it's a whirring chatter but at idle, a distinct > tock-tink!-tock-tink!-tock-tink!. *Sometimes* it seems to go away or > get less loud for a bit but it's pretty consistent. It really sounds > like it's coming from the head, not the lower half (hope hope hope). 99Ts and C900s develop a ticking noise over time when the exhaust manifold cracks. Often between cylinders 2 & 3, a short but noticeable crack will emerge which produces a ticking/spitting noise. It should be visible from underneath the car. It is often not noticeable when cold, but starts up as the car warms up. If yours is not a turbo then it might not be that, but I have heard badly fitted exhaust manifolds, incorrectly torqued bolts or an ill-fitting gasket can lead to the same noise. HTH, Paul 1989 900 Turbo S

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