rztmartini Posted October 23, 2006 Share Posted October 23, 2006 This may seem like a really dumb question so im apologising in advance... I just picked up a L28ET and took off the valve cover and (almost) everything is covered in rust. the casting on the head is P90A and I dont know how to tell by looking if it has hydraulic lifters or mech. lifters. there are no spring-clips holding the rockers to the pivot, is that a give-away? or do i have to take them apart? thanks for the help! Quote Link to comment Share on other sites More sharing options...
z-ya Posted October 23, 2006 Share Posted October 23, 2006 If it is hydraulic, there are no valve lash adustments. There will not be a pivot point bolt and lock nut. Quote Link to comment Share on other sites More sharing options...
wreckedj30 Posted October 24, 2006 Share Posted October 24, 2006 also if the head says p90a it should be hydralic. Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted October 24, 2006 Share Posted October 24, 2006 also if the head says p90a it should be hydralic. Not all P90a are hydraulic. Mario Quote Link to comment Share on other sites More sharing options...
GLENN280ZX Posted October 27, 2006 Share Posted October 27, 2006 No mouse-trap springs....hyd. for sure Quote Link to comment Share on other sites More sharing options...
rztmartini Posted October 27, 2006 Author Share Posted October 27, 2006 thank you! all is cleared. much appreciated to all hybridZ members that helped. Quote Link to comment Share on other sites More sharing options...
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