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oil pressure numbers

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  #11  
Old 04-18-2010 | 08:35 AM
GARovee's Avatar
Mudding
Joined: Mar 2010
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Just to give you some more 03 numbers.. How ever mine is outside the VIN range..

Cold 54/56psi
hot 13-16/43-46psi

I run 5w-40 rotella
89k miles
 
  #12  
Old 04-18-2010 | 11:43 AM
greg409's Avatar
Winching
Joined: Jul 2006
Posts: 739
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From: west of chicago
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Originally Posted by jck09
thanks greg, ive already downloaded the rave and its een a big help so far. i know that for the 03s with the misaligned dowels the only fix is a new block. but i was wondering if mine has made it this far and the gears are just worn should i just change the gears or the whole cover. i know that the numbers are within "ok" range but iv seen some way better numbers. im jus wondering all this just in case the numbers start sliding a little more. maybe catch it before it damages the cover?
thanks
john
I believe the misalignment issue is all consumed in the housing, tho' the tolerances are close in the gearset, I'll bet the gears are bulletproof.

Your oil pressures are close enough to specs, I don't know that you could improve them w/o considerable time/money.
(remember the rave cd states the pressure relief activates @ 50psi. - If I had numbers above that, I'd calibrate my guage or suspect press relief was stuck)

I like to use other's numbers as guidelines only, I went the extra mile with my numbers by calibrating my "in truck" aftermarket guage (it read 5# low initially) with my mechanical test guage which compared favorably with a couple of other guages I own.
(you're looking for repeatability on readings)

(I used to test flow & pressures for work)

Read up on the "georotor oil pump" that LR went to in the early '90's .

It settled my nerves.

luck,greg
 

Last edited by greg409; 04-18-2010 at 11:45 AM.
  #13  
Old 04-18-2010 | 04:34 PM
GARovee's Avatar
Mudding
Joined: Mar 2010
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Try a different mechanical gauge. Not all read accurately or are calibrated worth a crap. If you get the same numbets with both gauages then you
can believe it. One guage from another could easily be off by a pound or two if not more especially if the guage reads up to 100psi
 
  #14  
Old 04-18-2010 | 07:38 PM
jck09's Avatar
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Three Wheeling
Joined: Mar 2010
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From: pataskala, ohio
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thanks guys. ill get a mechanical one and double check the numbers
 
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