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Normal range of ignition timing for '82 b21f 200 1982

posted by Windwrapper on Fri Mar 13 09:52 CST 2009
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last visit: Sat May 30 05:37 CST 2009

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I have a 1982 245, b21f with K-jet and Chrysler ignition system.

About a year ago, I was fiddling with tuning to improve performance. At some point the car went from good performance to major lack of power and knocking at large throttle openings and higher RPMs. I have done my best to return to stock settings paying attention to: idle richness, 12 deg btdc at idle with vac advance disconnected and plugged, idle rpm setting, valve adjustment, compression test, new cap rotor wires, and a lot of general checking around.

The engine exhibits its usual torquieness at low speed, low to mid RPM.

Today I thought I would check the timing at higher rpms. With vac advance disconnected and plugged the advance range from idle to max advance is 12 to about 32 deg. With the vac advance connected and no load (racing the engine) the advance ranges from 12 ish to 50 +-2 deg.

Anyone have experience or information regarding acceptable range of advance?

Best Regards,

Mark.
--
Mark Mueller, '82 Volvo 245 - Very Green, B21F, Strut brace, electric radiator fan, A cam, Urethane Bushings, Bilstein Sport Shocks, IPD lower springs, Perf Exhaust, 740 10 sp wheels, 2-7/8' stainless exhaust tip adds 20 hp.

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Normal range of ignition timing for '82 b21f [200][1982]
posted by Windwrapper subscriber on Fri Mar 13 09:52 CST 2009 >

Normal range of ignition timing for '82 b21f [200][1982]
posted by sdewolfe subscriber on Fri Mar 13 10:14 CST 2009 > V
- Normal range of ignition timing for '82 b21f [200][1982]
  posted by Windwrapper subscriber on Fri Mar 13 12:11 CST 2009 > V
  - Normal range of ignition timing for '82 b21f [200][1982]
    posted by someone claiming to be sdewolfe in San Antonio for the weekend on Sat Mar 14 00:22 CST 2009 > V
    - Normal range of ignition timing for '82 b21f [200][1982]
      posted by Windwrapper subscriber on Sun Mar 15 06:29 CST 2009 > V
      - Normal range of ignition timing for '82 b21f [200][1982]
        posted by sdewolfe subscriber on Sun Mar 15 08:21 CST 2009 > V
- Normal range of ignition timing for '82 b21f [200][1982]
  posted by Windwrapper subscriber on Fri Mar 13 14:51 CST 2009 > V

Normal range of ignition timing for '82 b21f (all in the controller?) [200][1982]
posted by lucid subscriber on Sat Mar 14 01:39 CST 2009 > V
- Normal range of ignition timing for '82 b21f (all in the controller?) [200][1982]
  posted by Windwrapper subscriber on Sun Mar 15 05:55 CST 2009 > V
  - Normal range of ignition timing for '82 b21f (all in the controller?) [200][1982]
    posted by lucid subscriber on Sun Mar 15 08:50 CST 2009 > V
    - Normal range of ignition timing for '82 b21f (all in the controller?) [200][1982]
      posted by Windwrapper subscriber on Sun Mar 15 11:00 CST 2009 > V

Normal range of ignition timing for '82 b21f [200][1981]
posted by 81242DLB21FCA on Sat Mar 14 05:18 CST 2009 > V
- Normal range of ignition timing for '82 b21f [200][1981]
  posted by Windwrapper subscriber on Sun Mar 15 05:59 CST 2009 > V

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Normal range of ignition timing for '82 b21f 200 1982