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unleaded air cooled models
ChrisRLewis:
Just wondering what you guys use when running unleaded petrol on the aircooled motors? I now the bis motor is ok..one of it's good points!
Additive and make?
Cylinder Head replacement?
Or no modification?
Something else?
Lead replacement petrol
Chris Lakin:
Do you have to get the head modified, or can you just replace the valve seals? to use unleaded.
regards
Chris
ChrisRLewis:
--- Quote from: "Chris Lakin" ---Do you have to get the head modified, or can you just replace the valve seals? to use unleaded.
regards
Chris
--- End quote ---
Chris
the usual mod for an unleaded head is special valve seats and guides.
anyone fitted one of these heads? if so would love more information on companies who supply, prices etc..
C
:)
Chris Lakin:
Chris why do leaded cars need lead as aposed to unleaded? whats differnt about the engines??? i've never understood that.
Chris
paul harbinson.:
Ive been using unleaded with no additives for years.The aircooled already has hardened valve seats because of the alloy head.Ilooked up a book in work here and the aircooled engine can run fine on unleaded. :lol:
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