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00 Cadillac Catera
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3 Posts
Discussion Starter #1
ok so I've looked everywhere for a step by step guide on how to replace the valve cover gaskets. And have found nothing does anyone have a link to one or can explain how to. It would be greatly appreciated. It's a 2000 Catera with 150000 miles love her so far not feeling super ready to tear into the motor to replace the valve cover gaskets so any help would be appreciated thanks
 

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Platinum 2001 Cadillac Catera Sport
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1,840 Posts
The reason the Camcover Gaskets blew is the Crankcase Breather is probably clogged. Not cleaning it while you have the plenum off only means you'll be doing this again someday. Luckily our friends at The Omega Owners Forum have the info you need plus pictures. In case you don't know the Opel/Vauxhall Omega is what the Catera was built from. If you haven't read my superb article covering the "magnificence" that is The Cadillac Catera grab your beverage of choice and start reading. That site also has info regarding suspension and braking upgrades, among other things. Welcome to the nuthouse.
[HR][/HR]Cadillac Catera History, Overview, & Stuff:
http://cateraowners.forumotion.com/t239-catera-overview-history-by-elvin-rivera
http://cateraowners.forumotion.com/

Removing the Intake Plenum:
http://www.omegaowners.com/forum/index.php?topic=90657.0
http://www.omegaowners.com/forum/index.php?topic=90545.0

Changing the Camcover gaskets:
http://www.omegaowners.com/forum/index.php?topic=90542.0

Cleaning the Crankcase Breather:
http://www.omegaowners.com/forum/index.php?topic=90653.0
 

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00 Cadillac Catera
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Discussion Starter #3
Thanks I've read your overview before I thought it was great got the job done cleaned the intake and the breather wasn't too hard of a job was expecting a lot harder.
 

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2001 Catera
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10 Posts
When you get tired of the plastic valve covers leaking again go to a junkyard and get a set of metal ones from a 3.0 saab or saturn and put em on. I used them from a Saturn Vue, you have to get two "rear" ones (FWD) or the fill tube hits the master cylinder. Have to fill it with a dipstick funnel after that but never leak again.
 

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Platinum 2001 Cadillac Catera Sport
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The plastic covers aren't the issue. If the oil isn't changed regularly, sludge will build up and clog the crankcase breather. If the breather is clogged, gaseous pressure will build in the crankcase by the pumping of the pistons. If that pressure doesn't find escape through the breather it will find another way out. Yes, under those conditions the plastic covers will flex and allow pressure relief and leak oil past their gaskets, and yes the more rigid cast aluminum covers from the Saab or Saturn V6s will stop that from happening, but the next best escape route for that pressurized gas is past the crankshaft main seals. I guarantee that replacing them isn't as easy or cheap a job. Whether you use the plastic or alloy covers the key to preventing oil leakage is clean oil and a clear breather. I admit to buying a set of alloy covers on a whim with the intention of polishing them to a mirror finish and dress up the engine but I never used them. When I shifted my focus from "show to go" I concentrated on upgrading the suspension, brakes, and of course, regular oil changes.

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The Alloy Camcovers - too industrial looking without polish or paint IMHO.


Notice the location of the oil filler now.


Keep the crankcase filled with fresh oil ( Fossil or Synth), clean the breather every few years and, whether you go alloy or not, you shouldn't have problems with leaking oil.
 
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