May 11, 200620 yr how long should i run in freshly rebuilt engine, have heard various times from 5 mins(mx boys) to two tanks of fuel. engine is gg 1996 270 has had new bore plating, piston, rings, rod, bearings should i run more 2t oil for first tank? cheers jono
May 11, 200620 yr i got told to run my new gasser in at 100:1 for about 5-10 trials till it was fully run in but a think 5 trials or 5 outings for 2-4 hours will be ok and run it at 100:1 then go to your normal mixture that should be ok coxy
May 11, 200620 yr what ever you do, dont run it on 100:1...BVM recconmend 25:1 for the first couple of tanks
May 11, 200620 yr all i do is run at a slightly richer oil to petrol mix, say 50:1 instead of 75:1 and put 2 tanks of fuel through it. obviously start off easy with the revs. and dont let the engine labour. then get progreesivly more aggressive with the revs until the 2 tanks are gone. there run in.
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