1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

fire balls and cinders

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Old 07-23-06, 10:56 PM
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blown up motors

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fire ***** and cinders

so its been a few months sences i worked on the 7 (bad me).... so i got my PLX M-300 wideband today. and got it hooked up tuned the carb..got it running nice and tood it for a drive. well my friend was falling behind me caz the car got no tag... and he said the tail pipe was glowing red at 1 point..he also said that he saw a big flame fallowed by red glowing cinders.. my exhaust is the fallowing racing beat race header, 3in str8 pipe under rear, with a AeroTurbine at the back

my wide band for the most part was between 13.8 and 15.1 its going on the lean side when i take my foot off the gas

any ideas? lol bet i was shooting apex seals out my exhaust ...it drove the same my friend said that it didint look like the car was going anyslower after that happend and i didint feel any diff

PS any1 got a muffler for sale 3in in and out in the middel lol
Old 07-23-06, 11:06 PM
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Old Fart Young at Heart

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Check your timing and that the trailing is firing. Apex seals do not flame on the way out of the engine.
Old 07-23-06, 11:09 PM
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blown up motors

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so apex seals wont glow red when coming out the muffler thats a plus.. so you think my timing it retarded or advanced to much?
Old 07-23-06, 11:16 PM
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Only the timing light will tell. Check both leading and trailing. Chances are the flaming bits are carbon build up from the engine or exhaust pipes.
Old 07-24-06, 01:20 PM
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Timing too slow will cause the exhaust temp to be much higher than normal.
I think I remember you saying (in another thread) that you have a holley carb. Do you have the vacuum advance hooked up correctly? Most holleys have a vacuum port near the front float bowl plug used to set the float level. This is often refered to as the "Spark hole", as the vacuum advance should be hooked into that port.
If the vacuum advance is not hooked up, the timing will be slower than normal.
The cinders blowing out are either old carbon buildup, or rust inside the exhaust, breaking loose.
Old 07-24-06, 04:18 PM
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blown up motors

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cool i will check every thing when i get home you are right i got a holley ...its hooked up in the right place

good to know it was no an apex seal..........i'll have video up soon

cheers PaTricK
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