Low oil pressure

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Low oil pressure

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Land Rover Forum >> Brand Reviews >> Engine & Internal >> Low oil pressure

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Low oil pressure - 3/28/2006 4:19:09 AM

brooksn

Posts: 1
Joined: 3/28/2006
Status: offline

re : 1987 LAND ROVER LR 90 DEFENDER

When driving the oil pressure is ok but on idle its about 5 to 10 on the gauge - the bottom end sounds ok ? Is this a major cause for concern ?

Many thanks
NB.

Post #: 1

RE: Low oil pressure - 4/16/2006 9:26:03 AM

headman

Posts: 4
Joined: 8/16/2005
Status: offline

The drop in oil pressure at idle is typically due to increased rod and main bearing clearance.
Extra clearance due to wear in the oil pump housing will also create this situation.

At higher engine speeds the pump moves enough oil to maintain pressure dispite the wear.

The engine may operate like this for extended periods.

Replacing the pump may postpone the needed rebuild.

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(in reply to brooksn)

Post #: 2

RE: Low oil pressure - 5/18/2006 1:23:21 PM

Disco Mike

Posts: 9588
Joined: 4/27/2006
Status: offline

You need to do a mechanical oil pressure test to verify the real pressure numbers, then you might consider doing a good engine flush to see it it will improve, if that doesn't help, pull the oil pan, clean and inspect, especially the oil pick up tube that are known to plug up.
Mike

(in reply to headman)

Post #: 3