Need advice please Keno |
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Posted: March-29-2021 at 8:12pm |
Well there ended up being some sort of scream or sleeve where the oil sending unit goes remove that and everything is fine....
I think the panic is coming to an end Time to try and enjoy |
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Yet another update, this one may be a little difficult to explain..
I removed the oil temperature sender that was mounted right above the factory oil filter housing.. I noticed no oil came out. I stuck my pinky in there and felt something spongy. Almost like the outside of a balloon. Anyway I kept that area off went from a single oil filter on top to a dual oil filter system put a new sending unit there as well as the temperature sender After doing this my oil pressure came down around 5 lb so 70 went cold and if I let it warm up for about 15 minutes it drops down to about 50 so I think I'm definitely okay Main thing I'm wondering is what was that spongy thing I was feeling and why did in any oil come out ? Definitely have good circulation in the valve covers engine runs perfect .another thing that I noticed my engine oil is not getting above 140° but this is hooked to a water hose. |
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Yet another update, this one may be a little difficult to explain..
I removed the oil temperature sender that was mounted right above the factory oil filter housing.. I noticed no oil came out. I stuck my pinky in there and felt something spongy. Almost like the outside of a balloon. Anyway I kept that area off went from a single oil filter on top to a dual oil filter system put a new sending unit there as well as the temperature sender After doing this my oil pressure came down around 5 lb so 70 went cold and if I let it warm up for about 15 minutes it drops down to about 50 so I think I'm definitely okay Main thing I'm wondering is what was that spongy thing I was feeling and why did in any oil come out ? Definitely have good circulation in the valve covers engine runs perfect |
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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I have already confirmed it with a manual gauge but this afternoon I'm going to move the sending unit away from the relocation kit which the sensor is jammed into a corner of the kit and move it down to where the factory oil filters screwed in at the bottom of the engine to the left of the oil pan and see what happens
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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If you haven't solved the problem yet, you might want to check that the electrical connection to sensor is clean & tight. I had one that was loose & engine vibration would cause erratic readings.
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Thank you
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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You guys are too Notch !!!
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11118 |
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Like mentioned I'd put it back in the stock location and expect no problems at all because of the move.
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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10 4
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3750 |
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Oil pressure should remain exactly the same as long as you are tapped into the oil gallery. The ports just open an access into the gallery.
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Is it okay if I relocate my oil pressure sending unit away from the oil filter itself that comes with the bypass kit and move it down to the bottom of the engine where the stock oil filter was.
One of the reasons I'm asking it is a tight fit there where it's at. I'm sure if this will affect the readings or not |
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Amen to that again thanks for the very detailed answers
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3750 |
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The by pass in your GM oil pump is a piston floating in a cylinder, oil pressure on one side and a spring on the other side in the cylinder. When the pressure is too high the piston will compress the spring and as it moves it opens a by pass channel which allows the excess oil pressure to dump so it keeps a steady oil pressure in the engine. I have been told that a good oil pump will be opening the bypass at any RPM over 500 in a tight engine because they produce more oil pressure than you need. To answer your question about can it fix itself, remote chance but not likely. If some particle is stuck in that cylinder and the piston is wedged against it odds are it will not fix itself. It is possible the previous owner liked high oil pressure and installed a high pressure spring in that pump. I would not sweat it. If someone comments about your very high oil pressure just tell them you like a tight engine, they last a long time!
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63 Skier
Grand Poobah Joined: October-06-2006 Location: Concord, NH Status: Offline Points: 4269 |
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I agree that the high pressure shouldn't cause problems. But, 85 psi is pretty unusual so like you, I wish I knew what was causing it. The other 99 times out of 100 the person posting about their 454 would be saying "I only have 15 psi at idle, 30 running hard, what should I do?" so your situation is a bit unusual. Having said that, I'd run it and enjoy it and see if it changes with warmer weather and hours of run time.
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'63 American Skier - '98 Sport Nautique
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Does not burn oil and runs so very good . Going to take her on a longer test drive this weekend with warmer weather in the 80's
Can a "stuck" relief valve free up? Also I assume moving the oil sending unit away from the 90 at the relocation kit filter down to the old oil filter housing would not accomplish anything. |
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3750 |
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I hate to even suggest it but oil pressure that high might indicate the relief valve in the oil pump is stuck. I expected more of a drop with lighter oil. You still won't hurt the engine bearings, they like lots of oil. Some of the excess from the connecting rods might end up on the cylinder walls but if it is not burning oil that indicates your oil rings are good and can handle it so don't worry. Maybe the previous owner installed a very strong spring on the oil pump by pass because he wanted high oil pressure.
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Lol
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11118 |
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Sounds like a newscast Keep em' coming I think in warmer conditions your pressure will come down some with warmer oil and harder running.
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Okay guys, couldn't wait to get home and conduct more experiments. I drained the oil and put 10w30 rotella with a manual gauge
cranked it up and it was 75 lb I let it idle for about 20 minutes and it came down to 70 If I idle it up to about 1700 for about 5 seconds it will jump up to about 85 Then back down to 70 at idle a little more info, my oil sending unit is up right by the oil filter with the relocation housing. There is a 90° elbow coming out and the oil sending unit screws into that 90° elbow.... A friend of mine (lol) told me to move the oil sending unit down by the old oil filter housing. They're now is my oil temperature sender.. If it matters my oil when running it this weekend really didn't get over 150 degrees it was a cold day in louisiana, raw water pump , and 65° water as well It's possible that my temperature sender is not working correctly And this is your nightly update. Thank you very much |
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Another factor not mentioned yet is that oi flow takes heat away from the bearings. So if 30W gets you the oil pressure you need, then that would flow more oil & theoretically carry away more heat.,
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Thank u for your input
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3750 |
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I agree 100% on Rotella, Delo is also available, both are HD Diesel oils. They work well protecting the older flat tappet camshafts, I’ve run it for nearing 20 years now. I think I saw Rotella 10-30 at Walmart.
The only negative I ever saw from high oil pressure was one guy in cold country blew his oil filter off on a cold morning start, temp was around zero, car sat out all night and he had a high volume high pressure pump installed. Those pumps used a big block pump body adapted to run in a small block Chevy.
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Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Amazing how modern engines have progressed- 10 years ago BMW F1 engines were turning 19k, oil pressures ranging around 10 pounds. The wife’s newish cars oil pressure I have never seen go over 20 lbs hot or cold. It uses 0-40 oil and the pumps output is controlled by the ECM. I have also heard in Ford Windsor applications that a standard oil pump is preferred.
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11118 |
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I guess my opinion is that i don't have one on the 30 weight without knowing the brand, but I kinda like the Rotella mentioned previously.
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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I've always taken your recommendations. What's your opinion on straight 30w
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11118 |
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I was only wondering because the later engines used thinner oil with some tighter engine clearances but your Mark4 with hydraulic flat tappet lifters/cam should be pretty happy with something like Rotella 15w40 Diesel oil with decent zinc(ZDDP) levels
How much zinc is really needed is one of them things plenty of people have plenty of opinions about, but the Rotella mentioned above has plenty in most everybody's opinion
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Yes sorry Mark 4
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11118 |
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do you mean Mark4?
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Tko87
Groupie Joined: June-19-2012 Location: Louisiana Status: Offline Points: 59 |
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Gen 4
U guys are awesome |
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11118 |
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I just knew MrMcD would come drop in from the west coast with some more good info for you
BTW I'm not sure if you have an earlier Mark4 or a later Gen5 or Gen6 because Chevy never called any of their 454s a Gen4
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