Miss on 1983 470

[joner]

I'm having a problem with losing power as the rpm are coming up as well as a steady miss in one cylinder. It's aggravated by using the trim but I can't find a short in that system. I thought the new coil and wires had solved this problem but its starting again. Also any suggestions for type of spark plugs for this engine would be appreciated. <br /><br />Thanks

 

[festx]

Re: Miss on 1983 470

Sometimes it's not an electrical problem. Try adjusting the fuel mixture on the carbs. It could be to lean.

 

[JB]

Re: Miss on 1983 470

Moving to I/O

 

[Bob_VT]

Re: Miss on 1983 470

Check your exhaust manifold... If it has a hairline crack (the older cast iron ones are popular for cracking) it will spread under the exhaust heat and kill the #4 cylinder. <br /><br />I just changed mine over to an aluminum manifold and no more problems.<br /><br />Also check your coil... when coils fail they tend to fail at higher rpm and when heated up.<br /><br />Bob

 

[grizzlyadams]

Re: Miss on 1983 470

im a fellow 470 owner. use this site for a alot for info<br /> http://www.breezeworks.net/cgi-bin/MBoard/forum/display_forum_topics.asp?ForumID=1