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dsalinas1939
Senior Member

186 Posts

Posted - 10/11/2013 :  12:12:18 PM  Show Profile  Visit dsalinas1939's Homepage  Reply with Quote
have this 365 running ruff have to codes 577 and 578 cylinder balance cylinder 7 and 8 now when its idling its making a horrible sound i never heard before sounds as if u can hear the cylinder firing threw the intake tube or the air filter opening i am thinking a broken valve spring or rocker any ideas

Fastback
Top Member

955 Posts

Posted - 10/11/2013 :  12:54:17 PM  Show Profile  Reply with Quote
Sounds like you have an exhaust valve(s) not opening, possible lobe gone off cam or valve train issue.

Why yes, the ORIGinal CHARGER is a Fastback
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dsalinas1939
Senior Member

186 Posts

Posted - 10/16/2013 :  09:58:18 AM  Show Profile  Visit dsalinas1939's Homepage  Reply with Quote
thats what i was thinkin broken valve spring or something going to open it up tomarrow and see what i find
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kevin1336
Active Member

USA
11 Posts

Posted - 10/17/2013 :  07:27:32 AM  Show Profile  Reply with Quote
Take top off and look for buttons broke off the rockers. Sometimes you can find these stuck to drain plug. But most likely you have a roller on lifter broke, turned sideways and really messed up cam shaft. Bad enough and ran long enough, you may be looking at new motor.
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dsalinas1939
Senior Member

186 Posts

Posted - 10/31/2013 :  4:59:57 PM  Show Profile  Visit dsalinas1939's Homepage  Reply with Quote
took valve cover off found rocker arm tip broken of got a new one but the clearance was way off took oil pump off to see lifter and sure enough the roller was gone and the lifter distoyed the cam I will be pullin the motor tomarrow o joy........
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