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HELP!!!! I think I have low oil Pressure with my new cam

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Old 09-07-2003, 09:16 AM
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Default HELP!!!! I think I have low oil Pressure with my new cam

I put in an MTI X1 Cam witha new SLP Blueprinted ported oil pump.....and I Have less oil pressure than with stock!!!

anybody know What I should see....before I tear back into it and try to find out if I screwed up the O-Ring on the pump????

Shouldn't I have more pressure??? sits at like 25-30 psi
2000 z-28
Old 09-07-2003, 09:25 AM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

you didnt forget the o-ring did you? that could be it
Old 09-07-2003, 09:55 AM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

put it in...gonna tear apart to see if it didnt seal right.....


so far I'm just glad no clacking or other really bad noises happened.....sounds great...just not very good Oil pressure.
Old 09-07-2003, 10:03 AM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

can anybody tell me what oil pressure I should see when its all good???
Old 09-07-2003, 04:09 PM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

I would expect stock or slightly higher oil pressure. Something isn't right if its 10 to 15 psi lower IMO.
Old 09-07-2003, 04:33 PM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

Does the pressure go up if you rev it?
Old 09-07-2003, 05:03 PM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

Every oil pump is a little different. If SLP didnt shim the spring (like lots of places dont) then your oil pressure may be less than before. If it is 25-30 once it is fully hot, I wouldnt worry much about it. If it is 25-30 when cold, then there might be an issue.
Old 09-07-2003, 05:52 PM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

Most of these cars get about 40 psi (hot) idle and 55 psi (hot) freeway speeds.

What did you have before? If it's way off, that should tell you something.

Pull a valve cover. I suspect you won't find any oil coming up through the rocker arms during idle. If not, you have a 99% chance it's the O ring.

Again, my bet is on a the O ring. Been There .. Done That
Old 09-07-2003, 08:07 PM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

How much lift does the cam have or better yet what does the base circle measure???
Old 09-07-2003, 09:29 PM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

I have the same problem ...I am going to replace the oil pump and o-ring...I don't think its the pump but the o-ring might be the probable cause...A good rule of thumb as far as oil pressure goes: For every 1000rpm you need 10 pounds of oil pressure...Compared to other cars ours are a little low, but as long as oil pressure goes up with the revs, then you are ok....
Kevin
Old 09-07-2003, 09:41 PM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

so heres an update...I have another post...because the crank pulley bolt crossthreaded somehow....It buggered up the bolt real bad...and only the crank a little....I'm goingto the dealership tomorrow for a new bolt....The tought is that the threads on the crank itself really isnt too bad...and I'v cleaned up the threads with a good bolt before(not on a crank...but on other stuff)...the metal on the crank is really F*cking tough...so I should be able to get it started...and use a little back and forth love on it till it grabs real good...then I can pull it back out to check it...clean it...and then start torqing on it.......I leaned up the stock bolt...and it trys to grab..but the pulley isnt in far enough to actually get ahold of the threads...the new one shold grab.....I HOPE.
Old 09-08-2003, 09:50 AM
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Default Re: HELP!!!! I think I have low oil Pressure with my new cam

new update...
I am up and RUNNING
THE BEAST LIVES!!!!

Got the oil pressure thing figured out...it was the dam spacer...had it on backwards...DOH!!!!!

also crossthreaded my crank pulley bolt... DOH2!!!!(got a new bolt and it went right in with no problems)

started the beast up.....all checks out good!

I got som funny pictures to post after I get them out of my dam camera....well atleast they're interesting...




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