Posted by Bob on September 01, 2019 at 20:17:41 from (64.255.159.199):
In Reply to: JD 3020 posted by Trobb55 on September 01, 2019 at 11:18:27:
I'm surprised no one else mentioned this, before the era of pollution controls, every car and truck had a similar setup, hanging down from the engine to vent blowby from the crankcase into the air stream under the vehicle, if idling in traffic, you'd smell it. (Setup was called a "road draft tube".)
Then along came "PCV" (Positive Crankcase Ventilation) and the oil mist and stink was piped into the intake manifold and burned along with the fuel in the engine, the exhaust could still stink, though.
Nowadays, automotive engine tolerances are tighter to limit oil leaving the engine through the exhaust and the stink is cleaned up by the "cat".
Pardon me for digressing, but folks that have been only around modern vehicles (which would apparently apply to the O.P.) are unaware of how stinky stuff used to be!
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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