Posted by Phil9N3667 on December 29, 2020 at 06:31:08 from (173.197.205.106):
In Reply to: Engine assembly lube posted by svcummins on December 28, 2020 at 22:49:53:
When I learned to rebuild the old MACK 237 and 300 engines, my co-worker (veteran MACK mechanic with many years under his belt) always put about a half a teaspoon of oil in the "bowl" in the top of the piston. His reasoning was the first few times it was under compression and fired up, it would lube the cylinder walls. Lubriplate 105 was my go to assembly lube, although I did hear of an engine manufacturer that would void any warranty issues if they found something like that in the oil filter/s after an engine failure. I only had two engine failures in 35 plus years of rebuilding and one was from a bad vibration dampener the boss didn't want to R&R. Crankshaft broke (300 MACK) and the other was a DT530 IH that broke the crank.
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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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