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Re: ot calling farmboyWI

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Author  [Modern View]

03-29-2014 16:00:05

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I went ahead and pulled the oil sending unit and tapped a gauge in. Found out sending unit is normally closed so engine would continue to run as long as the terminal wasn"t grounded. Results were: Start up: 5 seconds to get any oil pressure at idle. 50 psi at idle 55 psi full throttle Shutdown: 50 psi to 0 in 10 seconds.
This is all with the engine being run earlier in the day. I will test again tomorrow after leaving it sit overnight.

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03-29-2014 19:05:22

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 Re: ot calling farmboyWI in reply to neverfear, 03-29-2014 16:00:05  
Yeah, that sending unit is the only place I know of to tap in. Everywhere else they have aluminum plugs pounded in. Pressures sound alright, but the 5 seconds to pressure at startup would bother me. When it did get pressure, did it jump up to 50 or slowly climb? Iím curious to hear your results in the morning.

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03-30-2014 05:58:30

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 Re: ot calling farmboyWI in reply to farmboyWI, 03-29-2014 19:05:22  
Well the test done this morning doesn't look as promising. Starting cold at quarter throttle oil pressure jumped to 15 psi as soon as engine caught but dropped to 0 and bounced to 10 a few times for roughly 6 seconds then climbed slowly to 50 taking another 12 seconds. This is with 5-40 synthetic that I ran all winter. I intend on going back to 15-40 in the next week or so as the weather warms up. A little more history on this machine, It's a 2010 L170 that was traded in locally from a large dairy and I purchased it last fall to use for snow removal and general use around my small acreage. So, I don't see myself putting a large amount of hours on it from here on out. 35 hrs total all winter. It is parked in the unheated uninsulated part of my shop and had no trouble starting down to 15 below 0 plugging it in for a minimum of half an hr. The thing runs excellent with no oil smoke or leaks and plenty of power so it's really a shame it seems to be a ticking time bomb. If I understand your previous post correctly, the problem is the oil pump is draining out from an internal leak, correct? If so, is it possible to reseal as is or is parts replacement necessary? Also, In your opinion with some people having trouble at 4-500 hundred hrs. these things would have to be leaking internally from the start? So what changes were made to remans or what can someone do if rebuilding to keep from happening again? Any advice to prolong the use of this would be appreciated. I intend on permanently installing the mechanical oil pressure gauge to keep an eye on it although I would only expect it to get worse. Thanks for your time in helping me understand the problem.

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03-30-2014 08:51:17

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 Re: ot calling farmboyWI in reply to neverfear, 03-30-2014 05:58:30  
Funny you say about the pressure jumping around like that, thatís just what it did on the machine I worked on. Start it up, and it might even have pressure right away, but then it might drop to 0 just for a half second and back to 50. Iíll take some pictures of the spare engine at the shop tomorrow, I think it would be easier to explain things that way. Itís different from your normal oil pumps. So Iíll get some pics and post them tomorrow night if thatís alright with you.

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03-30-2014 09:00:46

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 Re: ot calling farmboyWI in reply to farmboyWI, 03-30-2014 08:51:17  
I would appreciate that. Thanks again

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