The obvious start is the fuel pump. There is a direct path from a leaking diaphram to the crankcase, along the cam lever. And the "light off" was gas fumes in the crankcase. Pull the dipstick and see if it will burn with a lighter. Anything else would involve being too rich, or leaking carbs spilling down the rams, again too rich and these would be noticable in other ways. Let us know, Ray > From: John Hertog <crossram@xxxxxxxxxxxxx> > Organization: Crossram Motors > Date: Sat, 11 Sep 2004 18:02:01 -0400 > To: Chrysler 300 Club Listverver <Chrysler300@xxxxxxxxxxxxxxx> > Subject: [Chrysler300] things that go BOOM > > To all weekend diagnosticians: > > so... Dave Clelland finally decides to drive his 300G rag somewhere... > (yes, Peter Fitch, he DID drive it ! ) ... after a 45 minute ride, he > arrives at a car show..... and BOOM. Big explosion under the hood. Enough > of a BOOM to wake up the neighborhood; enough to blow the oil cap (breather) > right off the valve cover, and enough to blow the intake manifold pan ... > outwards, and cause it to bulge out so far that it actually interfered with > the throttle linkage under the rams. > > Yes, the car restarted and still runs OK; and, yes, Dave does smell gas in > the oil. Question is: how did it get there ??? obviously, there was > enough of a buildup of gas fumes in the cranckase to cause this explosion. > > anyone ever hear of something like this ? Comments? Please "reply to all" > so Dave can read the posts... > > John > > > > > > > > To send a message to this group, send an email to: > Chrysler300@xxxxxxxxxxxxxxx > > For list server instructions, go to > http://www.chrysler300club.com/yahoolist/inst.htm > Yahoo! Groups Links > > > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Yahoo! Autos. Everything you need to know about buying or selling a car. FREE Quotes, 360° Tours, Research, Blue Book, Compare Vehicles, Buy Used http://us.click.yahoo.com/kEZsdA/bwnGAA/YiGOAA/8LmulB/TM --------------------------------------------------------------------~-> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/