Question about Honda Civic
Valves make noise after I tuned them to manufacturer's specs.. I rebuilted my yamaha grizzly 600, adjusted the valves with yamaha's specs and they still make noise. how could I fix it?. yam's specs: intake: 0.05mm to 0.10mm exhaust: 0.12mm to 0.16mm
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Posted on Jan 02, 2017
did u soak the lifters in oil 1st before installing them? if they are pumped up u bring that cylinder u are adjusting up on compression stroke, then adjust rocker to zero lash and then 1/2 more turn of the adjusting nut.
Posted on Mar 22, 2009
The 4.0 engine has non-adjustable hydraulic lifters. The rocker arms are torqued to 19 foot lbs. No further adjustment is necessary.
If you have valve clatter it is likely due to worn pivots on the rockers or a worn cam lobe.
I would also check the valve springs (rare but they can break), oil pressure (low pressure from worn bearings or obstructed pickup screen) as that can cause lifter noise as well. If all is good, sometimes using an additive like marvel or lucas oil treatment will quiet them down.
Posted on Feb 17, 2010
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