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VOLVO 120 AND LOW OCTANE GAS 120-130

uid 4433's pic
posted by  patrick of montreal on  Wed May 1 18:38 CST 2002
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last visit: Sat Oct 18 08:25 CST 2014
[RELATED]

In theory lower octane means faster ignition (counter-intuitive but true) so... retard the ignition untill you get rid of it (maybe 5-8 BTDC) , also make sure the exhaust valves have clearance per specs. I ran a B18D in Mexico/Guatemala and I managed a reasonable performance no pinging. Oh yeah, keep the revs (revolution de motor) up. I also would suggest finding better carbs for this but that won't be easy in Peru i imagine, poor fuel mix can cause pre ignition or late ignition (burnt valves). Good luck.

p.s. try volvoworld.com he has lots of stuff digitized and if you tell him your situation he'll probably give you a good price (maybe free).
--
Disclaimer: be careful, work safely!!! If you have any doubts as to the safety of the work you are doing, consult a proffessional before you hurt yourself or others!!! I'm not a licensed mechanic, I have just been fixing stuff my whole life, patrick of






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