lopez Posted August 19, 2017 Report Share Posted August 19, 2017 This is what happens if a nice little stainless steel nut somehow finds it's way into your Beta Rev engine 01 - I'm guessing that massive "ventilation hole" is not supposed to be in my crankcase? 02 - Dead rings and debris 03 - RIP piston 04 - RIP barrel, or might I get away with that? Can't feel any actual scoring other than that damage to the port. FFS! Quote Link to comment Share on other sites More sharing options...
betabonkers Posted August 19, 2017 Report Share Posted August 19, 2017 Purple and yellow 2002 Quote Link to comment Share on other sites More sharing options...
teamferret Posted August 20, 2017 Report Share Posted August 20, 2017 There are places that will weld then replete barrel Quote Link to comment Share on other sites More sharing options...
dickjones Posted August 20, 2017 Report Share Posted August 20, 2017 Sorry to see that,Any ideas where the nut came from? Quote Link to comment Share on other sites More sharing options...
pauls320 Posted August 20, 2017 Report Share Posted August 20, 2017 Saddened to see pics of your poor Beta:( First pic sure shows quite a bit of rust and pitting on the steel components...hope the bearings etc are...immune . Best of luck there Quote Link to comment Share on other sites More sharing options...
dadof2 Posted August 20, 2017 Report Share Posted August 20, 2017 Since you are going to have to fit a new piston you may as well get the barrel replated. The crankcase is probably weldable, standard Beta cases are. That engine has had "worn out" transmission oil in it, hence all the rust. As oil ages or becomes contaminated its anti oxidant additives run out, Oxidation (rust) then starts. Quote Link to comment Share on other sites More sharing options...
worldtrialchamp Posted August 24, 2017 Report Share Posted August 24, 2017 That "ventilation hole" is supposed to be there Quote Link to comment Share on other sites More sharing options...
lopez Posted August 24, 2017 Author Report Share Posted August 24, 2017 Interesting thanks! It doesn't look deliberate, hence me wondering! Quote Link to comment Share on other sites More sharing options...
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