Date: 2 May 2003 08:15:29 -0700 From: alancemornopsamo.com (Lance Morgan) Subject: Re: Help - Noisy tappet/cam follower/lifter
"Andy Hookins" <andrew.hookinsnopsamamnopsamodata.co.uk> wrote in message news:<vb4a3lbip4k8d7nopsam.supernews.com>... > I had the headgasket on my 9000 replaced last week but when I > collected it one of the hydraulic tappets was noisy. I asked my > indy about it and he said that it wasn't uncommon and should go > within a couple of days. Not entirely convinced by this I asked a > SAAB dealer and their technician said 'yeah that sometimes > happens - give it a week'. > > The camshafts and tappets were removed prior to machining the > head, but were marked up in individual plastic bags and put in a > purpose made 'thingy' to make sure weren't mixed up. > > Well it still hasn't settled and I phoned my indy last night. He > suggested going for a run keeping the engine above 3000rpm, > citing a SAAB TSB (I've got to see it!). Two 10 minute runs > later and no joy :-(. > > We're going to take the tappets out this weekend and asses the > situation. Can the tappets be re-conditioned - when I was at uni > (school) I had an Opel Manta with seized hydraulic tappets and > I spent an evening taking them apart and removing a varnish-like > deposit with carbon tetrachloride. The car ran quietly after that. > I also had a sore throat and headache for a week, because I did > this in my nice warm room with the windows shut - it was winter. > I won't be making that mistake again! In fact I won't be using > carbon tet. again as it's fairly nasty stuff. > > On a happier note, I'm going to look at an '88 c900 T16S tonight > and so hopefully add to the stable :-) > > TIA > > AndyH > '94 9000 CDE Sounds like you're on the best course of action. Don't know if you had the lifters soaking in clean oil while removed, as recommended? If it is a varnish problem, and not a metal/grit debris problem, an ester-based cleaning product, mixed/ran with engine oil, may also take care of the problem. LM
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