Breaking up
Hello ,I have 340 ralley Challenger,now it has 440 4spd usded stock Elc ignition for a 73 car my problem is car runs poorly ,feels like ignition problem everything is new motor is 1976 rebuilt , Iwas checking voltage from battery to ballast resistor only have 10 .4 volts ,wondering if it needs a full 12 , also swapped out control box car still acts the same . car also doesn't run Well with no load while driving ,if your on the gas it will stay running , but it feels like it's struggling to run ,like it's breaking up ,Vacume is around 10 pulls up to 15 to 18 when you rev it , I also changed the Distributor cap , thought maybe it had hair line crack. Any ideas ???thanks Gregg
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Perform a Compression test... Lets see what that comes up with.....
My own theory is "You cant tune up and engine that has bad compression".. :) If that comes out good. Then a tune up might be in order. Check for Vacuum leaks also... Hope this gets you started Greg... |
How many volts at the coil?:)
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Originally Posted by RacerHog
(Post 138460)
Perform a Compression test... Lets see what that comes up with.....
My own theory is "You cant tune up and engine that has bad compression".. :) If that comes out good. Then a tune up might be in order. Check for Vacuum leaks also... Hope this gets you started Greg... |
Thanks motor only has 50 miles on it ,just really missed something in the set up thanks Gregg
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OK....Check for vacuum leaks.... Try resetting the timing.... and as Iowan said. Make sure you have a good coil and voltage to it...
One other question comes to mind? Did the car ever run rite after the rebuild or within the 50 miles? Keep us posted... :) |
Originally Posted by RacerHog
(Post 138802)
OK....Check for vacuum leaks.... Try resetting the timing.... and as Iowan said. Make sure you have a good coil and voltage to it...
One other question comes to mind? Did the car ever run rite after the rebuild or within the 50 miles? Keep us posted... :) |
Originally Posted by Iowan
(Post 138464)
How many volts at the coil?:)
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Wow... Now thats an odd one for the book !!!! Glad you found it...
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Originally Posted by Gregg123
(Post 138819)
Well running better , this is a new one for me wiper motor must have a short ,it was drawing down my voltage it was hot just plugged in ,accidentally leaned on it checking voltage on firewall thanks for all the help Gregg
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Also Check for vacuum leaks.....
You could be on to something with the cam timing. Someone might have installed it wrong... |
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