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I had some problems with exhaust smells
inside the car, that seemed to come into the cabin at
the shift lever. Now, after looking under the car (a
'66 1800S), it seems that those fumes do not come from
any leaks in the exhaust pipes, but from the little
tube that comes from the crankcase and ends just below
the front end of the gearbox. I guess this is the
"open" crankcase ventilation? How does the "closed"
crankcase ventilation look?
I have read in descriptions of the evolution of the
1800 family, that closed crankcase ventilation was
introduced on the year model of 1966. How come my car
has the open version of it, was it introduced during
the production year (from a certain chassis #), or
maybe my car has a replacement engine head or similar?
What is preferred - open or closed crankcase
ventilation? Can the open version be rebuilt into the
closed one?
The fact that exhaust fumes leak throught the
crankcase ventilation is, I guess, a clear sign of
poor piston rings in need of replacement. Is there
anywhere I can get figures on what the cylinder
compression should be on the B18B engine?
Freddy
Uppsala, Sweden
'66 1800S
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