bsa b44 smoke problem HELP

[bazza]

rings from wellington bsa dealer- use mineral based oil to run in not synthetic

[Oppet]

rings from wellington bsa dealer- use mineral based oil to run in not synthetic

Can you explane why should I use mineral oil?

[big mac]

I am using elcheapo oil for running in no synthetics. This has me stumped. Thanks to all who have helped out hope to see some of you for a beer at cd7. Rory

[mike1948]

Silly question time.  You did fit valve stem seals, and didn't cut them when fitted caaarefully?

[Oppet]

I am using elcheapo oil for running in no synthetics. This has me stumped. Thanks to all who have helped out hope to see some of you for a beer at cd7. Rory

Ok, I thought there would be nicer reason than money.

[big mac]

BSA dont run valve stem seals. But if you know of a retro fit please tell me, I am just about ready to push this bike to the back of the shed. As for using the cheap oil it lets the rings bed into the bore when you run synthetic oil in a new or reconed engine it is to slippy and will not allow the new parts to bed intogether.

[matcho mick]

havn't ported thru the inlet port into the valve spring lower retainer relief cutaway,(sucks heaps in when you do!!),

[big mac]

My next move will be to pull the motor out again head off and total strip valve guids out and crack test it. Ports dont look to be enlarged to much, this is what can happen when you buy bikes in boxes.

[mike1948]

B44 & B50s have rubber sealing rings on the rocker spindles.  I haven't looked inside a BSA for many years, and too much rough red has destroyed the memory, but if pressure feed to the rockers leaks here, the build up goes down the valve guides. 
Just a guess.  You can remove the rocker box studs which will allow you pull the rockerbox and or cyl head without pulling the whole motor out of the frame each time.  Just don't do this too many times, or they will come loose in their threads.
Mike

[bazza]

mineral oil will bed in rings- synthetic wont untill motor run in

[dirtrumpy]

In the process of trying to find the source of my continual smoking problem and after replacing all guides and fitting new sealing tubes where the head bolts pass through the single carb Triumph 650 inlet ports, I sent the head to these guys
http://www.metseal.com.au/ for them to seal any porosity.
I cant speak highly enough of them, they were incredibly reasonably priced and provided a 1 day turn around, I sent the head overnight on wednesday and had it back in my hand Friday morning!
It didnt fix the problem but eliminated any doubt about the head.
See an earlier post as to what actually fixed the problem.

Mike

[matcho mick]

geezus,extremely rough red ,excess oil would tend to go down the pushrod tunnel,(o rings protect our atmosphere,not the motors' ,

[big mac]

This should be the last installment as the smoke has just about gone, but how I fix it I dont quite know. At the last tear down I changed the oil pump, swapped cast iron valve guides for phospher bronze ones, new valves and a aluminium sump plate with a drain plug.  Now I can move on with the rest of the build, hope to finish before Harrisville on the 15th so I can run it there. It will need a good clean to remove all the oil it managed to spray all over but that's the easy part. Plus I will need to jet it as it is a little rich.;