We have a 2013 LX570 with 160,000 miles. Still under Certified extended warranty. We had an engine rattle that was diagnosed as the valve lash adjusters on one side. We had all of them replaced under warranty. While the mechanic was in there I had them replace the timing tensioners, guides, and chains at our part cost.(mechanic suggested reusing the existing chains - replaced anyway). We also paid for new spark plugs, belt, belt tensioner, idler pulley and resealed the cam towers at our cost.
At the last minute, I was asking the mechanic if there was anything else recommended while he was in there. He mentioned replacing the valve seals if we wanted to keep the vehicle for a long time. (and we do). We replaced all valve seals at our part cost plus 7 hours of labor while he was in there (this ended up being about 3 hours more than expected due to the complexity). The engine sounds like new - hardly any noise at all.
We have the car back finally after 3 plus weeks (parts, etc). We had it back one week ago and it was immediately dumping quite a lot of oil on the drive. (no prior leaks). It turned out that one of the valve cover gaskets was pinched. (I hope this is all that it was - just got the car back yesterday)
After getting the car back with the initial oil leak, it made me question the wisdom of spending the money to replace the valve seals. Was this overkill? Do valve seals commonly cause problems on these engines over time? Slightly concerned that I spent money to potentially introduce new problems/leak potential.
Thank You
At the last minute, I was asking the mechanic if there was anything else recommended while he was in there. He mentioned replacing the valve seals if we wanted to keep the vehicle for a long time. (and we do). We replaced all valve seals at our part cost plus 7 hours of labor while he was in there (this ended up being about 3 hours more than expected due to the complexity). The engine sounds like new - hardly any noise at all.
We have the car back finally after 3 plus weeks (parts, etc). We had it back one week ago and it was immediately dumping quite a lot of oil on the drive. (no prior leaks). It turned out that one of the valve cover gaskets was pinched. (I hope this is all that it was - just got the car back yesterday)
After getting the car back with the initial oil leak, it made me question the wisdom of spending the money to replace the valve seals. Was this overkill? Do valve seals commonly cause problems on these engines over time? Slightly concerned that I spent money to potentially introduce new problems/leak potential.
Thank You