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Showing posts with label bushing. Show all posts
Showing posts with label bushing. Show all posts

Saturday, January 4, 2025

Converting electric fans from bushing (the old system) into bearings

 We usually use bushings for electric fan shafts.  However they are prone to early breakage and overheating when the sponge dries of oil.  The sealed bearing using 688zzz (metal seals)  last longer However they tend to be noisy.






Black smoke after replacing turbos and injector

 It could be due to the intercooler.   Signs of defective intercooler:   black soot and oil at the underside from the leak.