I"m not sure about the 404, but the 656 and 504 both have a pick up tube that goes from the oil filter back to the rear... if that tube gets a hole in it, mostly due to rust, it will suck air and cause problems with your three point and probably priming. I changed one on a 656 years back... might be a last check type deal because it"s a real pain to get to. Good luck with her.
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Today's Featured Article - Pitfalls of Tractor Engine Rebuilds - by Chris Pratt. The first pop after you have put the machine together with your own hands is exciting and pleasing. The whole experience can be marred if one moves too fast and makes too many assumptions that they can just use "as is" some parts they should be closely scrutinizing and possibly attended to. In such cases, rework makes what could have been a fun project turn into an irritant or even a nightmare. Minor Irritants To give you an example of an minor but irritating proble
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