klutz Posted August 30, 2018 Report Share Posted August 30, 2018 I recently had to remove the exhaust from my 2014 Beta 125. When I replaced it black oil dripped from the join between the expansion chamber and the silencer can. I replaced the O rings in the silencer which improved things a little but I'm still getting black oil drops from the joint all over the engine. Is there some trick to fitting the exhaust to ensure an oil tight alignment or am I doing something else wrong ? Many thanks Klutz Quote Link to comment Share on other sites More sharing options...
lineaway Posted August 30, 2018 Report Share Posted August 30, 2018 A little silicone never hurts. Quote Link to comment Share on other sites More sharing options...
oni nou Posted August 30, 2018 Report Share Posted August 30, 2018 3 hours ago, klutz said: I recently had to remove the exhaust from my 2014 Beta 125. When I replaced it black oil dripped from the join between the expansion chamber and the silencer can. I replaced the O rings in the silencer which improved things a little but I'm still getting black oil drops from the joint all over the engine. Is there some trick to fitting the exhaust to ensure an oil tight alignment or am I doing something else wrong ? Many thanks Klutz The thing that you are doing wrong is not cleaning the oil out of your exhaust system regularly. Quote Link to comment Share on other sites More sharing options...
klutz Posted August 30, 2018 Author Report Share Posted August 30, 2018 That makes sense. Many thanks. Quote Link to comment Share on other sites More sharing options...
oni nou Posted August 30, 2018 Report Share Posted August 30, 2018 10 minutes ago, klutz said: That makes sense. Many thanks. Glad to be of some use. Quote Link to comment Share on other sites More sharing options...
billyt Posted August 31, 2018 Report Share Posted August 31, 2018 (edited) Here is the tech scoop on this issue: Remove header pipe and silencer. Remove the two O Rings from the silencer. There will be two groves/recesses in the silencer (where the silencer meets the header pipe and where O rings are supposed to reside). Take out O rings and clean the groves with brake cleaner and let dry. Apply a thin layer (with fingers) of heat resistant RTV into the groves wait a little bit (about a minute and then instal O rings (new rings if old) into the RTV ladened groves pressing them in to the RTV. This is much better than putting RTV all over the pipe and holds the O rings in place in the grooves making a better seal as you slide the parts back together. Let dry completely and re-instal. This has worked on all Betas that I have worked on either mines or friends Beta's. Cheers BillyT Edited August 31, 2018 by billyt Quote Link to comment Share on other sites More sharing options...
klutz Posted September 3, 2018 Author Report Share Posted September 3, 2018 Thanks Billyt. I will definitely give that a try. Quote Link to comment Share on other sites More sharing options...
klutz Posted September 9, 2018 Author Report Share Posted September 9, 2018 Quick update Carried out the procedure suggested by BillyT. Now no oil leaking from exhaust. Many thanks, advice much appreciated Klutz Quote Link to comment Share on other sites More sharing options...
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