Hi All, It's time for me to appeal to this awesome list. Here's the
deal...my engine (29E) has only 1100 miles since a complete rebuild.
Bored cyls out completely and sleeved to std bore. Pistons are
long-skirt with 5 rings. The bottom two are oil rings and one of those
is below the wrist pin. The new pistons went in very well with no
indication of a ring hanging up. The head was redone for new valve
seats, alloy guides, and stem seals. I replaced a few intake and
exhaust valves but most of the originals were in great condition. All
the machine work was done by a very good guy whose work I trust
completely. From the beginning the engine smoked a (very) little at
startup and never quit doing so. A few days ago, the smoking got worse.
Instead of a puff at start up, it became slowly more constant until it
looked like a bug fogger all the time. This happened during a 120-mile
trip. She has never overheated...even then. She runs great, she just
smokes a LOT. Compression on 2 thru 6 is 165-175 psi "dry" and 230-240
psi with a little oil squirted thru the plug holes. Compression is 95
psi on No. 1 dry and about 155 with a little oil squirted in. There is
no water apparent on the dipstick and the oil appears to look normal.
There is no water loss in the radiator. There is, however, a gooey
black oily discharge from one of the tailpipes. Seems kind of odd just
one of the tailpipes drips since this is a stock BT7 type exhaust. What
to do??? I turn my own wrenches but I don't look forward to pulling the
head. Does a broken ring (or more) come to mind?? Bad valve guide,
head gasket, or what??? Please help if you can and many thanks.
Jack
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