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Backfiring/no power 140-160 1973

posted by  Steve M. on  Fri Dec 9 12:23 CST 2005
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last visit: Wed Feb 23 21:05 CST 2011
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Brought the beast back to life today after a tune-up.

Here's the situation:

New points, plugs, rotor and cap. Dwell at 60 degrees. Timed to about 20 BTDC. Adjusted the valves and they're all in spec, between .16-.18 mm.

The car was converted from FI at some point and has dual SUs. The idle is way lumpy and it backfires under load -- shifting from first to second, for instance.

My first thought is double check the timing. But the car was backfiring when cold even before the tune-up (which is why I did the tune-up in the first place).

What else should I check out after the timing?

Steve M.

Raleigh, NC

73 145
84 240






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New Backfiring/no power [140-160][1973]
posted by  Steve M.  on Fri Dec 9 12:23 CST 2005 >


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