354 , droped #5 & #7

Discussion of the 331-354-392 HEMIs.

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mrossbach
Posts: 8
Joined: Tue Oct 13, 2009 8:44 am

354 , droped #5 & #7

Post by mrossbach »

Afternoon....Last saturday I started my 354....ran just fine...(15 mins)
Went out to go for a ride Sunday, started the ole hemi, and the engine started misfiring...checked the exhaust and found it was the left bank....pulled #1 its firing, Pulled #3 its firing, Pulled #5 its misfiring Pulled #7 its misfiring

changed the plugs, wires, cap, rotor, still misfiring.....

checked compression....160 psi in both.......

W.T.F IS GOING ON? ANY ONE HAVE THIS HAPPEN? THANKS MIKE R. MICHIGAN...

one more thing, what type of plugs are best to use,,,,copper, standard autolite 65.....platinum? thanks...
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Last edited by mrossbach on Thu Jun 24, 2010 8:23 am, edited 1 time in total.
mrossbach
Posts: 8
Joined: Tue Oct 13, 2009 8:44 am

Re: 354 , droped #5 & #7

Post by mrossbach »

Found the problem....dont pull the plugs with the engine hot...oil dripped in the #5 #7 cylinders.....
kept fouling out the plugs....
poured a little gasoline in the cylinders....BLEW OUT THE OIL.....
PUT MORE NEW PLUGS IN......runs just fine now...
any one use copper spark plugs?.......
DblAdigger
Posts: 86
Joined: Mon Feb 02, 2004 1:40 pm
Location: SoCal

Re: 354 , droped #5 & #7

Post by DblAdigger »

Now you know the exact reason why we put tube seals in the heads. 8)


Last bumped by mrossbach on Thu Jun 24, 2010 8:17 am.
Chuck Stevens
Some people can break a cannon ball, in a sand box, with their bare hands.
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