The crankcase breather, ACDelco #CV870, on my '83 Surburban/6.2L diesel,
is starting to spit up small quanties of engine oil irregularly, and my
mechanic says its time for a new one. Before I accept this, I want to
educate myself a little:
1. What is a crankcase breather and what does it do?
2. Is it adjustable? I see no obvious means of adjustment or opening.
3. This online parts catalog seems to suggest that aside from the breather
there are also breather elements that can be replaced separately:
Yet again I see no obvious way to open the breather.
I've googled for answers, but what I come up with are parts dealers, not
information about the part.
Thanks as always, guys,
Santa Rosa de Copán, Honduras
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