The following is a cheap & easy(ish) solution for the annoying filter drain back found with some FB20 FA20 engines (top mnt filter). And that is to “simply“ use a filter with both an anti-siphon valve and anti-drainback valve. Although depending on where you live, finding one of these filters...
Interesting engine. Crankcase, timing train and under valve covers looks superb with no sludge, varnish or apparent wear. But those Combustion chambers! Oil control rings look frozen. Split personality Mopar motor
Wera has this, If I understand your specs. I use one all the time. Works great.
Wera - 5003500001 Zyklop 8000 A 1/4-inch Drive Ratchet https://a.co/d/elZ7iN4
I’ve seen similar oil jelling to this in Small displacement off road Diesel engines. Scenario was engine “stuck” in and out of active DPF regen for weeks. Led to a very high rate of fuel dilution. This was combined with low ambient temps and an operating profile where engine frequently did not...
TG3950 off 1988 Mitsubishi 2.6L. Run for about 2k miles / 6 months. 99k on motor at install. 5w30 Chevron Supreme. Changed as had cam chain rattle from drain back after sitting overnight. Replaced the Fram with a Pure One and rattle started sooner than this Fram. Purchased from RA “warehouse...
Using genuine Kubota parts is always less costly than hiring an attorney to argue why a will-fit oil filter did not contribute to a Lubrication related failure.
Is this machine located in Europe? What model year is it?