Read to the end for my answers Hello Robert and list readers, Robert you did not mention a year for this Chevy v6 that you were working on. I would assume that it is a vehicle with an electronic fuel pump because you wrote "forgot to hook up the fuel lines to the throttle body". The turning on of the key would activate the electronic fuel pump and gas could have probably flowed in to the engine. Now other questions are how much gas might have got inside the engine and did it get on to both heads? What actually sparked the gas to cause the explosions? I am guessing that the gas did not ignite in the oil pan since you did not mention bending of the oil pan. So the question is what ignited the gas under each valve cover in a relatively close time frame to cause consecutive back fires? Could moving valve train engine parts to cause sparks to ignite the gas? What is the probability of that happening consecutively on opposite sides of the engine? Does this particular engine have crank case vents on both valve covers? If so, could a out of time spark plug sparked at a time when a valve was open while gas vapors were starting to be sucked through the tubes leading from the valve covers? Why play with gas engines? See we don't have these kind of problems with diesel engines. I am only trying to kid you. I guess you can tell that I am partial to diesel engines.
It will be interesting to read any other replies that you get on this one. Art This is a 1989 s10 with a 4.3 v6 yes it has an electric fuel pump. Most of the gas went on top of the intake manifold and we mopped that up the best we could but I am sure some got into the valve train but probably not much. I am guessing that the spark came through an open valve since at that time we were no where close to having it timed. matter of fact we were 180 degrees off and we were out of sequence. there are vent wholes on both valve covers. I know that those offul sounding stink boms you call an engine are far superior in regards to longevity and by and large I believe have more torck. but I like my little gas engine that could. Now if I could only get my little 4.3 to grow 2 more cilenders I would have the 350 that I would rather have. but oh well its only an s10. Ha Ha If I open a shop up here I would offer jobs to Art Mickey Larry Lewis and ah umm who did I miss. 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/
