Oil pressure

Need someone to help me with oil pressure, bounces between 70-80 lbs., took pan back off checked everything for tightness, all was good, the motor is not in car, getting it ready for dyno, but am scared, it is a Kasse pump, I called them, they said they have never had this problem, but go ahead and run it, w.t.f., are they serious?

If you are using an oil filter that screws directly to the cylinder block, try changing your oil filter. If you have a remote filter setup, then please elaborate on this remote filter setup.

Paul

By pass sticking a little?

Pick-up or something isn't sucking air?

What type of oil filter?

Guys I had a jomar filter on it, it is attached to stock block location, took jomar off, and put a motorcraft fl1a on same thing.

We took the pan back off, checked everything for leaks, or looseness, all seemed just fine, I have about had it with this build.

342g wrote:We took the pan back off, checked everything for leaks, or looseness, all seemed just fine, I have about had it with this build.

I will give you my address and pay for shipping to get it off your hands.lol

I hope you find the gremlin.

whatbumper wrote:

342g wrote:We took the pan back off, checked everything for leaks, or looseness, all seemed just fine, I have about had it with this build.

I will give you my address and pay for shipping to get it off your hands.lol

I hope you find the gremlin.

Keep that thought in mind, one never knows.

I have seen the oil pressure flutter up and down some also. In one case, it was a big flat bottom pan, and the more quarts of oil we added to the crankcase, the better the pressure got. Apparently, the pump was pulling it out of the pan, faster than the oil could return. In another case, the pan just has a directional screen for the scraper, and even though that was doing a good job of getting the oil off the crankshaft,,,,because it was a screen, it allowed the oil in the area of the pick-up to still see "windage" and it was also sucking air bubbles. I fashioned a more solid like windage tray over the area of the pick-up and that cured things. I believe the oil in the area of the pick-up, likes a shield or umbrella (so to speak) over the top of it, so it is not exposed to the hurricane that is going on above it.

Hope this helps,

Charlie

Oil hot ? Oil cold ? 1,000 or 5,000 rpm ?

Lem Evans wrote:Oil hot ? Oil cold ? 1,000 or 5,000 rpm ?

Sounds like thick and cold oil.....the by-pass is opening and closing i.m.o.

kinda what I was thinkin............mine jumps around some as well.

Lem the oil was room temp, using a air drill, I really can't say what r.p.m. it was spinning, if it was just just quivering it wouldn't bother me, but 10 pounds back and fourth, I don't like it. I was hoping after it runs awhile, it will calm down, oh its 10w-30 oil.

Run it.

Lem Evans wrote:Run it.

That is what Kasse said, when I called him, so I will run it, and hope for the best.

Put the Jomar filter back on it.

Mine does bounce around at idle, when I rev it up it steadys out. I say run it but keep an eye on it.
Cheers Colin

Lem Evans wrote:Oil hot ? Oil cold ? 1,000 or 5,000 rpm ?

Sounds like p.s.i. @ zero rpm....

What location ere you checking the pressure at? Mech. or Elec.? Mine did jump around a little, on this build replaced the lifters with some Morels which are .001 larger on dia and it quit jumping. Should be fine what is the relief valve PSI set at? You just about ready to get the bird out? You coming to Muncie this year?

342g wrote:Lem the oil was room temp, using a air drill, I really can't say what r.p.m. it was spinning, if it was just just quivering it wouldn't bother me, but 10 pounds back and fourth, I don't like it. I was hoping after it runs awhile, it will calm down, oh its 10w-30 oil.

You could have enough rpm fluctuation with and air drill to cause it to jump around. I've seen the same thing spinning a dry sump pump over with a cordless drill. I'd run it if everything checks out as you say it does. If it still jumps around, then I'd be checking the pickup to pan clearance.

Hell, I tought you where running it!!! I would run it.

BIGDOG466 wrote:Hell, I tought you where running it!!! I would run it.

No we had it on a motor stand, using a air drill, about 800 rpm's, the needle looked like a humming bird fluttering, I have to run my fuel line, and put my new fuel pump on it, we will prolly put the motor in Monday, be ready to test Friday night if everything is good to go.

You could have enough rpm fluctuation with and air drill to cause it to jump around. I've seen the same thing spinning a dry sump pump over with a cordless drill. I'd run it if everything checks out as you say it does. If it still jumps around, then I'd be checking the pickup to pan clearance.
x2
it happend to me with a electric drill
put the motoro in fired it up and it was at 75 and steady

just curious as to what the details are on your build?

that build was a
svo block
4.300 stroke
6.8 rod
4.440 bore (530 cid limit in my class)
melling hv pump
rear sump moroso
tfs A heads