Hi Many years ago I was trying to start an early hemi. Everything was right. I was turning it over with a pushbutton switch hooked up to the starter relay. It would start and run as long as I was spraying starting fluid into it. When the ether stopped, the engine stopped. Turned out I had forgotten to turn on the ignition switch. If everything seems right then it's probably something obvious and stupid. If you have good spark while cranking is it still there when you stop cranking? Do you have voltage to the coil whether cranking or not? Sheldon PA > > > >>> "Jonnie" <Jslayton@xxxxxxxxxx> 1/9/2005 7:13 PM >>> > > I have a 57 300 that I am working on and I can't get the motor to run. > It most likely hasn't been started since the 70's. The engine is in > time,has good spark, is getting fuel--firing order is correct----points > are set right,new plugs are gaped right----after I was unsuccessful in > starting engine, I had two good Mopar engine guys to check everything > and they also say motor should run-----Compression ='s > 90---140---120---110---80---60---60---150----I oiled cylinders,turned > motor over----cleaned plugs-----motor turns fast enough to start-----I > put a jumper on it and ran it fast several times but it acts like it > wants to start----sometimes---but never will. Any suggestions before I > tear it down--Johnnie Slayton > > > > > > > [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> Help save the life of a child. Support St. Jude Children's Research Hospital's 'Thanks & Giving.' http://us.click.yahoo.com/6iY7fA/5WnJAA/Y3ZIAA/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/