HD4

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   Got my loader home . The guy had told me that it was knocking and thought it was the front main . I bought it knowing of an engine problem . When we unloaded it I noticed no oil pressure .(has gauge installed ) Took it to my shop removed the oil line and put in my test gauge and no oil pressure . Should I pull the pan and then the pump or is there something else to check .Maybe Ivan could help if parts are needed.

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Glen S.C. Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 18 Sep 2009 Location: Irmo S.C. Points: 35	Post Options Post Reply Quote Glen S.C. Report Post Thanks(0) Quote Reply Topic: HD4 Posted: 13 Mar 2016 at 6:41pm
	Got my loader home . The guy had told me that it was knocking and thought it was the front main . I bought it knowing of an engine problem . When we unloaded it I noticed no oil pressure .(has gauge installed ) Took it to my shop removed the oil line and put in my test gauge and no oil pressure . Should I pull the pan and then the pump or is there something else to check .Maybe Ivan could help if parts are needed.

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Randaleky Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 17 Aug 2011 Location: belfry, ky. Points: 427	Post Options Post Reply Quote Randaleky Report Post Thanks(0) Quote Reply Posted: 13 Mar 2016 at 9:31pm
	with no oil pressure, I would say the damage is already done. spun bearings, etc.

pinball Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 28 May 2014 Location: missouriu Points: 6357	Post Options Post Reply Quote pinball Report Post Thanks(0) Quote Reply Posted: 13 Mar 2016 at 10:59pm
	Running a diesel or gas engine loading a crawler, unloading a crawler, running in into your shop and there is not a very loud knock or it hasn't locked up doesn't sound quite right. I suspect you have some oil pressure. randall is probably right as you have blew a seal or maybe a bearing which would allow the oil pressure to drop quite a bit. running it may cause some real serious damage. course we cant here how loud the knock is. may be a stupid question but is the oil pan full up to the full mark on your dipstick. you also should be able to remove the oil line at the block and make sure its not plugged and turn the motor over, don't start it, just turn it over to see if any oil comes out. If you have oil coming out of it change the filter and oil then try it. Having said all this if its a loud knock then just pull the pan for inspection. good luck

orangeman Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Points: 1847	Post Options Post Reply Quote orangeman Report Post Thanks(0) Quote Reply Posted: 14 Mar 2016 at 7:18am
	Glen - Where did you install the test gauge at the remote end of the tube where the instrument cluster is located or close to the engine? If the oil pressure system relies on a oil feed tube to the gauge, recommend you plum your test gauge as close as you can to the oil pump thus eliminating the oil feed tube as a possible leak source as a first order of business. Keep us posted with more questions as you progress - Good Luck! Orangeman

Glen S.C. Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 18 Sep 2009 Location: Irmo S.C. Points: 35	Post Options Post Reply Quote Glen S.C. Report Post Thanks(0) Quote Reply Posted: 14 Mar 2016 at 5:26pm
	I hooked the gauge in on the side of the block where the oil pressure sending unit should be.(right side behind injector pump) As far as the amount of oil it is over full . When it started to knock he says he shut it down . His mechanic told him to add an extra gallon of oil to get it to his barn . He told me it had not ran until we loaded it . I did not here it run before I purchased it . I bought it knowing it would need a rebuild .I was just wandering if there was something else there was to check that I missed . I guess the next step is pull it out and tear her down . Thanks Glen

orangeman Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Points: 1847	Post Options Post Reply Quote orangeman Report Post Thanks(0) Quote Reply Posted: 14 Mar 2016 at 6:30pm
	Glen: How many hours on the unit? Sounds like time to pull the block for R and R.

pinball Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 28 May 2014 Location: missouriu Points: 6357	Post Options Post Reply Quote pinball Report Post Thanks(0) Quote Reply Posted: 14 Mar 2016 at 6:51pm
	Sounds to me that you have a good handle on it. good luck norm

pinball Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 28 May 2014 Location: missouriu Points: 6357	Post Options Post Reply Quote pinball Report Post Thanks(0) Quote Reply Posted: 14 Mar 2016 at 6:56pm
	FYI I believe the only difference between gas and diesel is the head and fuel pump. Block, pistons are the same. norm

Glen S.C. Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 18 Sep 2009 Location: Irmo S.C. Points: 35	Post Options Post Reply Quote Glen S.C. Report Post Thanks(0) Quote Reply Posted: 14 Mar 2016 at 7:18pm
	Did what pinball said no oil in fitting no oil comes out when it spins over . Is there some way that passage could be blocked. Not sure about the hours meter is unhooked. The previous owner said it had been rebuilt 2 years before he got it. He said it would not pull in first gear and they rebuilt the tc .When I go to pick it up he said it was not tc it was the reverser . By what he said he bought in parts I think it was reverser . He said it took 2 years to do this . After that it was ran about 1 year before this started. Now he was the owner he has a mechanic , not sure of his ability, but that's the story. Tear down here we go. Thanks Glen

pinball Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 28 May 2014 Location: missouriu Points: 6357	Post Options Post Reply Quote pinball Report Post Thanks(0) Quote Reply Posted: 14 Mar 2016 at 10:50pm
	If you have some oil coming out then it would seem that maybe a seal or rod bearing failure which would reduce the oil pressure but If you have no oil at all I would suspect oil pump failure. on the left hand side of the seat there is a lever. Its a shuttle valve for the torque converter for forward and reverse. takes type a transmission fluid. dip stick is down by the right foot. I actually had a problem with mine on the power issue until I discovered it was in a higher gear. once I got it into 1st gear power there was no problem. Not sure if you can pull the pan without taking the engine out or not. others can tell you that. I suspect if you get the pan off you probably will find an oil pump problem. the damage beyond that is unknown but you will have to pull the bearing caps off the check the bearings and probably should replace the seals while your at it. anyway it sounds like you know what you have to do. there is some people on here that knows a lot more than I do so and I think they will help you if you should run into problems. Good Luck

Dozer Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 16 Aug 2011 Location: SW New York Points: 689	Post Options Post Reply Quote Dozer Report Post Thanks(0) Quote Reply Posted: 15 Mar 2016 at 7:48am
	Before I attempt to run a machine that has not been run for years I charge the system with fresh oil. I use my portapower filled with fresh engine oil attached to the oil pressure gage port. On my HD6 I removed the oil pump and pressurized the system at the point where the oil pump would.

Randaleky Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 17 Aug 2011 Location: belfry, ky. Points: 427	Post Options Post Reply Quote Randaleky Report Post Thanks(0) Quote Reply Posted: 15 Mar 2016 at 11:39am
	I think you can drop the belly pan cover and be able to take the oil pan off to inspect the oil pump, and crank rod caps for slack etc.