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Tech Question
Alfredo Cuevas, Los Angeles, CA, 1968 Dodge Charger 383
My 1968 Charger is making a loud knocking noise. I think it's from the heads, the passenger's side. Please advise on how to fix this knocking.
Alfredo, if it's more like a "clacking", it could be a broken or cracked rocker arm, loose rocker shaft bolts, or bent pushrod. Just take off the valve cover and have a look.
Beyond that, it's much more serious. The least would be a bent valve, the worst would be a bad rod bearing / scored crank, cracked piston / scored cylinder wall, etc. At that point, it's time to pull the engine and have a look-see. As in, take it all apart and prepare to open wallet - wide.
Loud knocking noises aren't good. Ignoring them invites total destruction, usually soon.
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