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Old 08-30-2001, 02:04 PM
dwight hinton dwight hinton is offline
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Join Date: Nov 1999
Location: Matthews, NC, USA
Posts: 133
AS to the oil pressure levels, I have not noticed any difference, but then I did not document levels prior to the procedures.

As to the location of the oil filter checkvalve vs. the oil pump relief valve, when I return to my office, I will scan in the diagrams for both and e-mail them to you.

I am still confused about the part that the dealer supplied and why it would not fit my car. I will post a detailed question with the appropriate part numbers etc. when I get a chance.

If you have access to the CD's, try the following:

Oil Filter Check Valve Replacement is Procedure 18-1120
RA18.1323-1100 pages 1-6
(Bulletin AF05.20-P-1400EG)
and my engine no. 119.974.12 required part no.
and we also replaced a rubber seal part no.
which is inside the adjacent hex headed screw/cap.

Oil Pump Relief Valve
Procedure Number:18-2150
Part Number:
(as this part is 27mm dia. & the hole is only 24 mm does not fit my pump number
(unless there is a rear (passenger side access pointl??)
(I understand that my oil pump part no. that I looked at is
likely a casting or subassembly part number and that the
the listed part no. for 92-94 oil pumps is

The dealer gave me a diagram which shows more detail than the CD's and the above cited procedures will identify.

I will note my oil pressures, hot and cold & at various RPM's and let you know.

Hope this helps.

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