Extra crankcase ventilation is bull****, good pistons and rings and the std timed breather are fine. Engine starts misting oil out rocker spindles and such you pull the top end off and fix the blowby problem.
RFW was being polite, Tiger agrees and shall bite his tongue.
1969 TR6R 7.62 x 51 is not a maths puzzle.
Re: Drill a new crankcase vent-hole.#111713 03/09/078:14 am03/09/078:14 am
hansa , if you do a search on the various forums you will come across all sorts of info on vents . I have a pretty good idea of how to pproceed with a BSA unit twin , but I have no help for a pre unit triumph . It seems to be worth the effort if you intend to ride the thingthe way it was meant to be ridden, who knows , you might find thatthe timing cover is a sufficient place , that would keep the purists from whining ??? Let us know how this turns out , I have a slightly modified pre unit triumph myself that hasnt hd any extra venting done and I think it might be necessary if I ever getthat bike on the road .
If you plan do go anything like fast, standard breathing will make the engine leak oil.
The commonest place for an extra breather is high on the timing cover, near the rear. Proper engineers get an alloy stub welded on. Twits like me bodge a plumber's fitting on. Best be 7/8" bore at least. It should be directed straight up as far as there is room, before turning the hose to the rear or downwards. If too much oil comes out of the new breather, you'll have to invent some kind of trap.
If you are not using a dynamo, you can put a breather on the dynamo mounting hole.
Amateur Loctite enthusiast.
Re: Drill a new crankcase vent-hole.#111722 03/10/073:56 pm03/10/073:56 pm
B] WTF would a claw hammer be doing in a bike workshop ?
What? No Harley shops Down Under? CheerBruce
Harley toolkit comprises a cold chisel and half a brick
Awww, come on now guys Not much difference really between a Milwaukee Vibrator and a British Vibrator. One is just bigger than the other and we like the smaller of the two.
No usable genuine parts were used in the building of my chopper. Even the cases were busted on the primary side. I respect the purist community and use after market pieces on this project wherever possible.