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Oil Presure WOW

posted by  Rolyak on  Thu Sep 1 06:32 CST 2005
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last visit: Fri Oct 24 08:03 CST 2014
[RELATED]

Did a little research on Alldata, appears the relief valve may be accessable externally. The B234 pump is unlike the B230 and is not driven via a "jackshaft" but is located directly behind the front timing cover with the regulator in the block. The Alldata picture is not that good but I would look at the LF corner(drivers side) of the block and (I'm guessing here) about 2/3's of the way down. You may be able to pull it, clean it,possibly replace the spring and solve the problem?
I have my doubts that the drive pulley could be slipping on the shaft as they mention a locating champfer.
Book time for oil pump overhaul should be in the range of 3-3.5 hrs.
I would definitely investigate the relief valve first.






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