You got gas inside the crankcase of the engine when you turned on the key without the gas lines hooked up and this vehicle has an electric fuel pump. It went down through the oil drains in the heads, because the valve covers were not installed. Not exactly sure what set off the accumulated gas mixture in the crankcase (it could have been any number of things), but this explosion is what bulged your valve covers.
Now, where's that cold beer? ----- Original Message ----- From: Robert J. Moore To: [email protected] Sent: Friday, October 27, 2006 10:28 AM Subject: [BlindHandyMan] Blown out valve covers Hear is a brain teaser for all you mechanics A friend and I were replacing the intake manifold gaskets on a Chevy v6. Hear is how it went. We got it all disassembled, cleaned up and gaskets in place and the manifold reinstalled. the valve covers were still off and the distributor was back in place. My friend wanted to check some thing and had me turn over the engine. After I turned on the key he abruptly said turn off the key . What's up I said. I just forgot to hook up the fuel lines to the throttle body. Ok no problem. the rest went ok until we went to set the timing and try to start it. At this point every thing was back together except the air cleaner. After several attempts at turning over the engine and checking the timing and the firing order we tried one last time. That is when some thing vary strange happened. I heard 2 consecutive back fires which were more intense than I had ever heard from an engine before. We checked it out and discovered that both of the valve covers had blown outward from the inside. Now my question is how could the thing back fire through the valve train. I thought that there would only ever be vacuum under the valve cover. I think I know what happened. re read the above carefully and I think you might figure it out. If you come up with the same conclusion I did you get a gold star. So what do you all think? I will post my conclusion later. Ps We did get the valve covers streightened out, got the timing wright and it runns better than ever and we all lived happelly ever after. ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.408 / Virus Database: 268.13.11/493 - Release Date: 10/23/2006 ---------- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.408 / Virus Database: 268.13.11/493 - Release Date: 10/23/2006 [Non-text portions of this message have been removed] To listen to the show archives go to link http://acbradio.org/handyman.html or ftp://ftp.acbradio.org/acbradio-archives/handyman/ The Pod Cast address for the Blind Handy Man Show is. http://www.acbradio.org/news/xml/podcast.php?pgm=saturday The Pod Cast address for the Cooking In The Dark Show is. http://www.gcast.com/u/cookingindark/main.xml Visit The New Blind Handy Man Files Page To Review Contributions From Various List Members At The Following Address: http://www.jaws-users.com/handyman/ Visit the new archives page at the following address http://www.mail-archive.com/[email protected]/ For a complete list of email commands pertaining to the Blind Handy Man list just send a blank message to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/blindhandyman/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/blindhandyman/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
