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Jeep Wrangler YJ
YJ General Discussion
Valve Train Clatter
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<blockquote data-quote="deadpool1" data-source="post: 439358" data-attributes="member: 21229"><p>rod bearings do a double knock and very loud. , mains a huge deep boom under loads.</p><p>yes finding noise is not easy.</p><p>record the sound to MP3 file and share it , if possible.?</p><p></p><p>one good thing , it fails parked, making at 10x more safe to find.'</p><p></p><p>try different VIS oil,. 10w-40 ?</p><p>make sure oil pressure is at spec, at noise, De-accel.</p><p> does it fail engine cold and warm and hot ,all 3>?</p><p></p><p>where the new lifters ,pre-primed per the FSM before put in?</p><p></p><p>cylinder leak down tests pass?</p></blockquote><p></p>
[QUOTE="deadpool1, post: 439358, member: 21229"] rod bearings do a double knock and very loud. , mains a huge deep boom under loads. yes finding noise is not easy. record the sound to MP3 file and share it , if possible.? one good thing , it fails parked, making at 10x more safe to find.' try different VIS oil,. 10w-40 ? make sure oil pressure is at spec, at noise, De-accel. does it fail engine cold and warm and hot ,all 3>? where the new lifters ,pre-primed per the FSM before put in? cylinder leak down tests pass? [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Valve Train Clatter
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