RX330 valve stem seals replacement DIY
That consumption is within normal tolerance for most vehicles, personally I'd live with it (and did years ago with an Audi that burned ~1qt between oil changes starting around 80k miles).
I always thought you'd have to take the heads to a machine shop to replace the valve seals, however this website about Lexus V8s just schooled me:
http://lextreme.com/valve_seals.html
I always thought you'd have to take the heads to a machine shop to replace the valve seals, however this website about Lexus V8s just schooled me:
http://lextreme.com/valve_seals.html
Racer
Joined: Nov 2009
Posts: 1,567
Likes: 87
From: NJ
id start with the small less invasive stuff first like checking the pcv system and including cleaning out the baffles in the rear valve cover before considering valve stem seal replacement. Both can be the cause of oil consumption.
While the rear valve cover on the rx330 is a considerably better design than that on the rx300, it can still be prone to clogging with sludge with short trips and infrequent oil changes.
While the rear valve cover on the rx330 is a considerably better design than that on the rx300, it can still be prone to clogging with sludge with short trips and infrequent oil changes.
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Driver School Candidate
Joined: May 2007
Posts: 38
Likes: 0
From: ca
thank you all for the responses. My rx330 has 190,000 miles on it. I use 5W30 every 5K miles. Will check the rear valve cover as well. As I am not really sure what the rear valve cover does, can someone point me to the right direction?
Racer
Joined: Nov 2009
Posts: 1,567
Likes: 87
From: NJ
take a look at posts #11 and #14 in this post. It may shed some light on how the pcv system works.
https://www.clublexus.com/forums/rx-...in-intake.html
https://www.clublexus.com/forums/rx-...in-intake.html
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