debmalya Posted January 7, 2011 Share Posted January 7, 2011 Hello folks What type of engine does the RX400h have - is it an interference engine or a free running engine? Also, does it have a timing belt or chain? Quote Link to comment Share on other sites More sharing options...
JimH2 Posted January 8, 2011 Share Posted January 8, 2011 Looks like it has a timing belt: http://www.drivewire.com/vehicle/2008-lexus-rx400/timing-belt-kit/ Quote Link to comment Share on other sites More sharing options...
lemon Posted January 9, 2011 Share Posted January 9, 2011 Yes, it's an interference engine. Apparently not all that common in Toyota's. So don't delay on timing belt maintenance. By the way, you can have a timing belt and a non interference engine. Quote Link to comment Share on other sites More sharing options...
debmalya Posted January 12, 2011 Author Share Posted January 12, 2011 Thanks for your replies. I beleive the RX400h uses the Toyota 3MZ-FE engine http://en.wikipedia.org/wiki/Toyota_MZ_engine. I was not able to find out if this engine is interference or free running. I vaguely remember reading some where that Toyota's policy is to use chains in interference engines and belts/chains in free running engines. I now know that this engine uses a belt and recommended replacement is at 90000 miles or 96 months, both far in my case. Thanks for your inputs. Quote Link to comment Share on other sites More sharing options...
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