Posted by kopeck on September 28, 2013 at 10:29:21 from (188.8.131.52):
I've posted a couple of times about my BN in the last week or two. First the governor was fouled up and I had to play with the bump spring to get it right.
Next issue was it running rough at higher RPMs. Got the vac tester out today and started to play. The really looked like timing so I static timed the engine and it go worse. Idle speed was fine but the upper RPMs not so much.
Started playing with the timing and low and behold if I advanced the timing by hand when it was running at a high RPM it smoothed right out. Back of the throttle and now it wouldn't idle. Hmm...advance must be stuck in the distributor.
Grab a Mag I have laying around, time it up and things are better. It doesn't idle quite so nice as it did with the distributor but the high RPM cleaned up quite a bit. Hit has a random miss every now and then but under any load it clean right up and sounds strong!
Figure I'll check the oil and put her away. What I find is to much oil, not only to much but milky oil. I replaced the head gasket a year or two ago because I found water in the oil. The gasket didn't look bad, now I guess I know why.
I'm guessing bad O-Ring on the sleeve(s)? What's got me bummed is I have an A on the shelf right now for the same exact problem.
I know the best way is the right way but would a stop leak work in something like this? I just can't pull the engine down right now and it's not a machine that gets a ton of hours.
I'm thinking fresh oil and one of the magic in a can products and keep a very close eye on the oil?
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