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Absolutely correct, I forgot to mention the valve! Where the valve is in the system is also important. Some adapters I've seen have more volume before that valve than the glow plug (or injector) that they replace, so that extra volume becomes part of the compression reduction equation. I'm not...

Left field thought because I don't think that it has been covered here... the size (volume) of whatever you have between the cylinder head and your pressure gauge will affect the compression pressure registered. Simple maths. If you have an adapter or pipe that is larger or longer than...

With a slight lowering of oil level you got a measurable improvement (subject to scientific method :-) so before draining and refilling, why not try it on "E"? You aren't at all likely to run it out of oil due to the deep oil pickup. Temperature rise due to lower oil quantity **might** be a...

Cool, thanks for explaining. Yes this forum is the motherlode of info on Kubotas.

Not thinking so much of rocking, but the sustained angle at whatever speed it can spend a lot of time at.

Didn't get any bites on that question, so took a brief look at a D950 parts list which indicates that you don't have the standard dipstick arrangement. So the tube and dipstick is probably a special, maybe borrowed from a different series Kubota. The D950 (anyone, correct me if I'm wrong) has...

That oil level looks way too high for my liking. If you lower it, need to ensure it doesn't compromise the oil pickup from the sump when the boat is operating (motion from waves etc).

Thanks Fido. Agreed it is good do take the weight off the pivots when greasing. The issue for the M4500DT is that there is no way to grease it without removing the axle. There are no zerk fittings either at front or rear pivot. So I'm interested in how the zerk+vent works, as in is there a...

In addition to suggestions others have made, is the dipstick tube original (not the sort that normally goes down through a hole in the block) or the right length for that dipstick? Therefore oil level too low in relation to the oil pickup, or too high in relation to the crank counterweights...

If the engine is on an angle then maybe the dipstick - even the correct one - is part of the problem? Others on this forum may know more about this sort of application. Could be in a boat? It would help to know how the engine is angled, how many degrees side-to-side? Front to back? Photo of...

What does the bearing sleeve look like on the inside for tractors that have the zerk/vent arrangement? Is there a grease channel or other groove that runs between the zerk and the vent hole? Adding the zerk and vent may be a good mod for my tractor front axle. Thanks in advance.

I'm completely ignorant about your engine model, you've covered almost all the bases but 2 things occur to me: 1. Did you replace the oil filter with genuine Kubota? Not saying that any other brands are unreliable, but to save argument over aftermarket brand x vs brand y vs brand z. 2. Is it...

All the info is in the operator's manual, which I think you downloaded from my Google Drive a while back (happy to be corrected on that point... let me know as it is worthwhile having the operators, engine WSM and tractor WSM). The ops manual is also available from the good folk at...

The distance between posts and how high off the ground the bottom wire (or rail or whatever) is could have a bearing on the solution. Can you describe those and provide a photo of that and mature honeysuckle stems (several varieties I understand). I prefer to avoid spraying too, and found that...

Thanks for clarifying that Russell, good point.

#1 remove to grease the clutch release bearing. #2 yes that's a genuine Kubota split pin :) and its supposed to be there. To allow anything in the clutch cavity above to drain out, like if a crankshaft seal or gearbox input shaft seal started leaking, thats your indicator. #3 adjusting the 3 pt...

Love the plumbing, beautiful!

@Henro I believe that you are missing the point about the injector timing mark on the flywheel. There's a matching pointer cast into the bell housing. The flywheel is indexed to the crankshaft. So the said timing marks will line up at the precise number of degrees BTDC that Kubota wants the...

Using the injection timing mark on the flywheel, I reckon.

Welcome to the forum :) The op was last seen 2018 so I don't think you'll get an answer from him/her. @Fishfarmer had an oil pressure problem on an M4500DT a while back, I think he traced it to a partially blocked engine oil pump sump strainer (surplus gasket gunk?) but he'd be better to explain.