Completed the fall oil / filter change yesterday before laying the boat up for winter.
I discovered that my Universal 5411 is actually a Kubota Z500. That explains the Japanese stampings on the block. One more mystery solved.
After pumping the oil from the dipstick tube and removing the filter, I removed the oil pan drain plug to see how much oil and sludge remained. I got about a tablespoon of oil and no sludge after letting it drain for 10 -15 minutes. Either there was no sludge build up after ? years or it's hiding somewhere else.
Should add this to the oil change procedure: "If over 40 years of age, take 2 Advil 30 minutes ahead of time to improve flexibility."
Regarding spring oil change after winter lay up. I've seen this recommended elsewhere. It read to change the oil early in the season after running the engine several times.
There are 10 kinds of people. Those who understand binary and those who don't.
Last edited by CapnHand; 10-15-2007 at 12:26 PM.