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Joined: Jun 2013
Posts: 48
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ahs
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Joined: Jun 2013
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Hi there,

I was driving my '68 Firebird 400 to work yesterday & thinking myself how well it was running while on the highway. As I got off the highway & onto the surface streets, I suddenly had a big misfire issue which required me to keep the RPMs up while at a stoplight to keep from stalling.

I limped the car the last mile into work & took a look under the hood after work.

Car suddenly has 0 PSI (no compression) in cylinder #2, with an obviously very rough idle, and a clunking noise. All other cylinders have good compression. I had the car towed home & took a peak under the valve cover for cylinder #2.

In the attached photo, there's a piece of orange rubber (one of two pieces I found), and also some metal fragments at the base of the valve spring for cylinder #2. I removed the rocker arm to make this easier to see.

Any ideas what the issue could be here? What's the best course of action? Remove the heads right away, or try to fix the issue with the heads still on the car?

Thanks,

Alex
cylinder2-valveissue.jpg

Last edited by ahs; 07/24/18 01:49 PM.
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Entire Thread
Subject Posted By Posted
sudden loss of compression in cylinder #2, potential valve issue ahs 07/24/18 05:36 PM
Re: sudden loss of compression in cylinder #2, potential valve issue Dr. Drivability 07/24/18 06:20 PM
Re: sudden loss of compression in cylinder #2, potential valve issue Bartbird 07/24/18 06:47 PM
Re: sudden loss of compression in cylinder #2, potential valve issue ahs 07/24/18 06:57 PM
Re: sudden loss of compression in cylinder #2, potential valve issue Region Warrior 07/24/18 09:32 PM
Re: sudden loss of compression in cylinder #2, potential valve issue Bluebird428 07/25/18 03:14 PM
Re: sudden loss of compression in cylinder #2, potential valve issue ahs 07/26/18 05:23 PM
Re: sudden loss of compression in cylinder #2, potential valve issue Bronze Bird 07/26/18 07:28 PM
Re: sudden loss of compression in cylinder #2, potential valve issue ahs 07/27/18 12:02 AM
Re: sudden loss of compression in cylinder #2, potential valve issue ahs 10/08/18 08:29 AM
Re: sudden loss of compression in cylinder #2, potential valve issue Bluebird428 07/25/18 03:25 PM
Re: sudden loss of compression in cylinder #2, potential valve issue Bronze Bird 07/25/18 05:01 PM
Re: sudden loss of compression in cylinder #2, potential valve issue Bronze Bird 07/27/18 03:40 PM
Re: sudden loss of compression in cylinder #2, potential valve issue salmon38 07/27/18 04:23 PM
Re: sudden loss of compression in cylinder #2, potential valve issue ahs 09/02/18 03:39 AM
Re: sudden loss of compression in cylinder #2, potential valve issue Gus68 09/02/18 01:23 PM
Re: sudden loss of compression in cylinder #2, potential valve issue ahs 09/02/18 05:21 PM
Re: sudden loss of compression in cylinder #2, potential valve issue Gus68 09/04/18 07:56 PM
Re: sudden loss of compression in cylinder #2, potential valve issue Neill 09/03/18 01:44 AM
Re: sudden loss of compression in cylinder #2, potential valve issue Bluebird428 10/08/18 02:17 PM
Re: sudden loss of compression in cylinder #2, potential valve issue ahs 10/29/18 06:01 PM

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