cz777 Posted December 5, 2013 Share Posted December 5, 2013 i was drive alone at 45 mph ....no sweet next backfiring ,loss of power weird knocking< -not all the time happening very srtange and liter bleed down -clattering .........one bad day ! popped valve cover open ,seen nothing funny -turned over by hand -only cylinder one exhaust weak at pump up ?? at 250,000 miles damn oil pump went ?? anybody else heard this one before ??/ Link to comment Share on other sites More sharing options...
Jeep Driver Posted December 5, 2013 Share Posted December 5, 2013 Huh? Link to comment Share on other sites More sharing options...
cz777 Posted December 5, 2013 Author Share Posted December 5, 2013 yes that's what i said too Huh? what the hell ......anybody heard of this before ? now the loss of power is the kicker - all rockers are moving but #1 exhaust is weakly.....knocking is like hit and miss -i know what rods and mains sound like if a bearing spins out ...i am going take the oil psi test ....maybe r&r #1 exhaust lifter the weak one .....i am still wondering what the damn moo ! Link to comment Share on other sites More sharing options...
Tactical Bacon Posted December 5, 2013 Share Posted December 5, 2013 In English please? Link to comment Share on other sites More sharing options...
MancheKid86 Posted December 5, 2013 Share Posted December 5, 2013 if the #1 rocker for the exhaust valve is weakly working that will cause a knock, if the valve is not functioning properly then it will not allow the exhaust vapors to expel from the combustion chamber having a pre fire/detonation a bad tappet can cause this, as well as the rocker fastener coming loose, a quick fix for this is to create a shim under the rocker to the lifter, creating zero lash, the exhaust valve will then preform properly that will only eliminate the exhaust valve being the culprit Link to comment Share on other sites More sharing options...
cz777 Posted December 5, 2013 Author Share Posted December 5, 2013 if the #1 rocker for the exhaust valve is weakly working that will cause a knock, if the valve is not functioning properly then it will not allow the exhaust vapors to expel from the combustion chamber having a pre fire/detonation a bad tappet can cause this, as well as the rocker fastener coming loose, a quick fix for this is to create a shim under the rocker to the lifter, creating zero lash, the exhaust valve will then preform properly that will only eliminate the exhaust valve being the culprit new lifters - installed pumped up and soaked in oil ..it ran great Tuesday today all is well in the morning ....seen the weak action on the rocker arm by spinning engine over with valve cover off not starting it ....the rocker arm mounting bolt is tight and new ...action of the lifter was mushy not hard like rest .... maybe bad lifter but strange noise, a metallic pop ...sorry if anybody didn't understand me ....its been a rough day at too and this ...... Link to comment Share on other sites More sharing options...
cruiser54 Posted December 5, 2013 Share Posted December 5, 2013 Could be as simple as a bent pushrod. Only one way to find out. Take apart the "weak" whatever it is . Link to comment Share on other sites More sharing options...
yellaheep Posted December 5, 2013 Share Posted December 5, 2013 Jeezus dude, at least re-read what you've typed before hitting the "post" button.......... Link to comment Share on other sites More sharing options...
Stacks Posted December 5, 2013 Share Posted December 5, 2013 Could have wiped a lobe on the cam too!! Link to comment Share on other sites More sharing options...
92tanMJ Posted December 5, 2013 Share Posted December 5, 2013 Sorry about your bad day but..... Link to comment Share on other sites More sharing options...
cz777 Posted December 6, 2013 Author Share Posted December 6, 2013 Could have wiped a lobe on the cam too!! damn lifter failed[center is mauled out ] ! what the damn moo with red break in goo thick as hell and fresh oil ...rest are ok pulled them ....well time to build a short block time ...if you start have strange power struggles and hear lifter bleed down -rocker arms are rubbing on the valve stems a creeling sound /noisy start up lifter noise .....dive in ! Link to comment Share on other sites More sharing options...
ftpiercecracker1 Posted December 6, 2013 Share Posted December 6, 2013 Sorry about your bad day but..... Hoooly Sh*t thats funny! ROTFL :rotf: Link to comment Share on other sites More sharing options...
AMCJeepMJ Posted December 6, 2013 Share Posted December 6, 2013 yes that's what i said too Huh? what the hell ......anybody heard of this before ? now the loss of power is the kicker - all rockers are moving but #1 exhaust is weakly.....knocking is like hit and miss -i know what rods and mains sound like if a bearing spins out ...i am going take the oil psi test ....maybe r&r #1 exhaust lifter the weak one .....i am still wondering what the damn moo ! Could have wiped a lobe on the cam too!! damn lifter failed[center is mauled out ] ! what the damn moo with red break in goo thick as hell and fresh oil ...rest are ok pulled them ....well time to build a short block time ...if you start have strange power struggles and hear lifter bleed down -rocker arms are rubbing on the valve stems a creeling sound /noisy start up lifter noise .....dive in ! The text in red... what does that mean? Not trying to give you a bad time, just trying to understand. Link to comment Share on other sites More sharing options...
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