Volvo RWD 120-130 Forum

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Exhaust Backpressure & Vacuum 120-130

Have you checked the initial ignition timing and total advance? Everything you say points to retarded timing. Set it at 10 degrees at idle, and check that it makes over 30 at around 3500 RPM. When the breaker point gap closes up with normal wear, the timing point is retarded. That may be all it is.






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New Exhaust Backpressure & Vacuum [120-130]
posted by  s_r_c  on Tue Apr 18 14:04 CST 2006 >


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