shinaka Posted May 21, 2010 Share Posted May 21, 2010 Just shredded my rb20det timing belt and wondering if I have to worry about bent valves...anyone Link to comment https://www.sau.com.au/forums/topic/321610-rb20det-interference-or-not/ Share on other sites More sharing options...
lachlanw Posted May 21, 2010 Share Posted May 21, 2010 yes they are Link to comment https://www.sau.com.au/forums/topic/321610-rb20det-interference-or-not/#findComment-5247508 Share on other sites More sharing options...
shinaka Posted May 21, 2010 Author Share Posted May 21, 2010 costly lesson for me using the wrong water pump which shredded new timing belt and destroyed engine ... Link to comment https://www.sau.com.au/forums/topic/321610-rb20det-interference-or-not/#findComment-5247536 Share on other sites More sharing options...
mad082 Posted May 22, 2010 Share Posted May 22, 2010 some people have been lucky though and not damaged the motor when this has happened. only way to know for sure will be to open it up. Link to comment https://www.sau.com.au/forums/topic/321610-rb20det-interference-or-not/#findComment-5247620 Share on other sites More sharing options...
lagperformance Posted May 22, 2010 Share Posted May 22, 2010 rb20det is a non interference engine all the other rbs 20de 25 26 30 etc are inteference engines so you should get away with putting a new belt on dialling the timing settings back in nothing too hard if its bent valves you will have to pull it down but i doubt it Link to comment https://www.sau.com.au/forums/topic/321610-rb20det-interference-or-not/#findComment-5247627 Share on other sites More sharing options...
shinaka Posted May 23, 2010 Author Share Posted May 23, 2010 This is why I keep asking if its interference because over internet some are saying all rb's are interference and others that rb20det is non interference... Are you sure rb20det is non interference? Link to comment https://www.sau.com.au/forums/topic/321610-rb20det-interference-or-not/#findComment-5249815 Share on other sites More sharing options...
gregando Posted June 27, 2010 Share Posted June 27, 2010 only holden vl rb 30 are non interferance as they are single cam motor all skyline rb s are interfearance as they twin cam engines Link to comment https://www.sau.com.au/forums/topic/321610-rb20det-interference-or-not/#findComment-5316018 Share on other sites More sharing options...
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