locating the source of exhaust smoke

[Grumpy]

My 327 Chevy got a full rebuild about 35,000-40,000 miles ago. It has been running fine until recently when the right bank started smoking. I notice it most at idle. Not so much when driving down the road. I ran a compression check and all cylinders ranged between 150 and 155 lbs. So I began to think that maybe the valve seals were bad. I pulled the springs off a couple of valves to see if the valves were loose in the guides. I got a little movement. So I tore it down. But I also have this nagging idea that it also could be a broken ring. Is there a test for broken rings without tearing the engine down?

The pistons look good and the color in all the combustion chambers it a light tan and the spark plugs also are light tan. Two of the cylinders, nos. 6 & 8 show what could be oil deposit in the headers and the exhaust ports. How much looseness in the guides can cause oil to be pulled into the engine?

Engine specs:

327, .030 overbore, flat top forged pistons, Dart Iron Eagle 180 cc runner 76 cc chamber heads, Lunati cam, B & M 144 blower, Holley HP TBI and Patriot headers.

Thanks for any advice. Larry

yes theres a test that might help, its called a leak down test,
but read the link
(this one more in an endless list of procedures where some close detailed inspection and measuring and dealing in proven,
and verifyable fact's vs basing your actions on random guess work is vastly prefered)

http://garage.grumpysperformance.com/index.php?threads/blue-oil-smoke.12198/#post-59193

honestly if it was my engine, I don,t see the problem, a single weekend,
and a new set of rings bearing's valve seals and gaskets,
would most likely get the job done.
yes you might need new valve guides and a valve job.
the next thing Id do is pull the engine, dis-assemble it and carefully inspect it ,
pulling the engine down for a refresh is just not that difficult

 

[Strictly Attitude]

Send in the camera also