Hello Tr Forum! My name is Dave and I live in central Texas (near Austin) Some great roads for riding in the area. I currently have a 1979 Special and a 1969 TR6R that has just been finished on a complete restore. The left cylinder was burning oil and smoking so I took it back down. Maybe an oil ring failure but not sure. JCC/EMGO pistons (someone said they are "to round" and need filing down above and below the pin holes) I useda lite oil on the rings but read an article about "dry fitting" so any ideas would help! Thanks, Dave
Well oil has two routes in: Up from the crankcase pasts the rings Or Down via worn valve guides and stems. Without stripping the motor down you normally find defective oil rings generate most smoke on the overrun. Give it a steady 3,000 rpm and watch the tail pipe as you shut down. It begs questions like we’re the rings fitted right way up? (They usually have a slight chamfer). Gap spacing between rings an£ honing?
Welcome to the madhouse you should fit right in. To keep the inmates happy we will need photos of your bike. Tucker
Hello n welcome , Did you start off with new barrels or a rebore and new pistons ?? sadly its well known that EMGO sells a lot of rubbish. I only use NOS Triumph pistons and if i can't find them i use LF Harris pistons, Hastings or Gozet make the best rings and gap them at 12 thou, i also fit the pistons bores up dry.
Welcome to a terrific forum and community of bikers, Dave. I'm in AZ so not so very far away from Austin. We have a friend there who runs two motorcycle dealerships and a couple of years ago were lucky enough to get to ride a couple hundred miles through the Texas Hill Country on two of his used bikes. Spectacular! Again, welcome to the Triumph Forum. You'll love it!
Hi Callumity! It does hove new valves and guides. The rings are square and do not have any up or down indication. It was bored to 60 over. plan to give it a light hone and dry fit and see what happens. Hopefully it will be good to go! Thanks
Hi Dave and welcome to the forum looking forward to seeing your project completed, best of luck with the pistons