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DEAD CYLINDER #2763521 04/13/20 04:26 PM 04/13/20 04:26 PM
Joined: Feb 2005 Posts: 85 Georgia K kimber OP member
kimber OP member K Joined: Feb 2005 Posts: 85 Georgia	I HAVE A 318 IN MY 65 PLYMOUTH SATELLITE. LATELY IT STARTED POPPING WHILE IDLING. I CHECKED TO SEE WHICH CYLINDER WASN'T FIRING AND FOUND OUT THAT #8 IS NOT. I PUT A NEW PLUG AND IT IS STILL NOT FIRING ON THAT CYLINDER. ANYBODY HAS AN IDEA WHY IT IS NOT FIRING? IT JUST STARTED DOPING IT YESTERDAY. THANKS FOR ANY HELP.

Re: DEAD CYLINDER [Re: kimber] #2763524 04/13/20 04:30 PM 04/13/20 04:30 PM
Joined: Jan 2003 Posts: 32,926 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,926 Grand Prairie,Texas	Start with a compression check.

Re: DEAD CYLINDER [Re: kimber] #2763553 04/13/20 05:27 PM 04/13/20 05:27 PM
Joined: Jun 2013 Posts: 870 Keizer, Oregon U.S.A. E elmor353 super stock
elmor353 super stock E Joined: Jun 2013 Posts: 870 Keizer, Oregon U.S.A.	When you say "popping", is it popping through the carb or through the exhaust? Either way, a compression test will tell you more. Could be a blown head gasket allowing the adjacent cylinder to fire into that cylinder, or you have a burnt or bent valve.

Re: DEAD CYLINDER [Re: kimber] #2763565 04/13/20 05:57 PM 04/13/20 05:57 PM
Joined: Jan 2003 Posts: 29,650 Hamtramck, PA A Alaskan_TA Fluffy Balladeer
Alaskan_TA Fluffy Balladeer A Joined: Jan 2003 Posts: 29,650 Hamtramck, PA	Bent push rods and push rods punched through rocker arms or lifters are fairly common on small blocks. Removing a valve cover is a quick way to take a look inside.

Re: DEAD CYLINDER [Re: Alaskan_TA] #2763601 04/13/20 07:11 PM 04/13/20 07:11 PM
Joined: Jan 2003 Posts: 15,323 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,323 Omaha Ne	Originally Posted by Alaskan_TA Bent push rods and push rods punched through rocker arms or lifters are fairly common on small blocks. Removing a valve cover is a quick way to take a look inside. Is it an LA or Poly version ? www.tandmautomotive-omaha.com

Re: DEAD CYLINDER [Re: TJP] #2765633 04/18/20 07:51 PM 04/18/20 07:51 PM
Joined: Feb 2010 Posts: 82 Oly Wash racerlall member
racerlall member Joined: Feb 2010 Posts: 82 Oly Wash	If it a poly adjust the valves

Re: DEAD CYLINDER [Re: racerlall] #2765646 04/18/20 08:14 PM 04/18/20 08:14 PM
Joined: May 2019 Posts: 6,233 nowhere S Sniper master
Sniper master S Joined: May 2019 Posts: 6,233 nowhere	Before we jump on anything, did you check to see if you even had spark on number 8? Might just be a bad plug wire or even the cap.

Re: DEAD CYLINDER [Re: Sniper] #2765726 04/19/20 12:01 AM 04/19/20 12:01 AM
Joined: Aug 2005 Posts: 11,543 chicagoland,usa B buildanother I Live Here
buildanother I Live Here B Joined: Aug 2005 Posts: 11,543 chicagoland,usa	...or possible small vacuum leak could have dropping of that cyl at idle, but small brake torque should bring it back for diagnosis sake.

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