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Sludge check questions and observations (long-ish) Posted by Caarl [Email]  (#447) [Profile/Gallery]
(more from Caarl) on Sun, 12 Feb 2006 14:43:56
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I have a 2000 9-5 Aero, bought it at 17,000 miles. My Indy who did pre-purchase inspection said at that mileage I'd be fine if I just ran full synthetic from then on. Then I saw some pictures Anders posted of just how sludgy you can get in 15,000 miles.
I finally couldn't stand not knowing so I opened the cam cover and had a look. I wasn't sure exactly what I was looking for. Based on posts I've read here, it could be crumbly burned bits, gooey dirty molasses-like muck, hard caked black stuff? None of that. The areas around the cams and chains are clean looking. There's a fair amount of varnish coloration opposite to the cam gears. I poked around in the oil puddles under the shafts with my fingers and it's just clean oil with clean metal underneath. It looks better "live" than it does in the picture. You can see some other views in my photo gallery. Question for the experienced: Based on this inspection, would you go on to check the oil sump, or stop worrying? Did I look for the right thing?
Now my observations. I read here that this is a job you can do with the "tools in the trunk." It wasn't quite so. You need a T40 Torx bit to take the cam cover off, and I also found that with my socket-drive Torx I had to remove the banjo bolt from the air intake pipe and move the tube out of the way to get at one of the bolts. This required a 22-mm wrench, and you're supposed to use new copper gaskets on the banjo but I just reused the old ones because I didn't have the parts handy. I also needed snips to remove a zip tie that secured another hose to the cam cover, and a new zip tie to put back. Another thing I read is that there's no gasket needed. Well, it's true that you don't need a new one, but there is a reusable neoprene gasket there. Be careful not to snag and tear it on anything when pulling the cover off or you WILL be buying a new gasket.
The part I found humorous was from WIS, they say to put "a soap solution" on the gasket after cleaning with solvent (which they call "benzene" in Brit-speak). But soap? On a gasket? Never heard of such a thing. I have to admit, I just wiped if off and screwed it back down!
TIA
-- Carl
-- Saab guy since `84
`84 900, 180k
`87 900T, 240k (RIP)
`00 9-5 Aero, 23k
, Sun, 12 Feb 2006 14:43:56 <-- Viewing This Message, Mon, 13 Feb 2006 20:50:21, Tue, 14 Feb 2006 09:09:34
, Sun, 12 Feb 2006 17:06:13, Sun, 12 Feb 2006 14:45:28
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