|
200 Series General Forum for the Volvo 240 and 260 cars |
Information |
|
Oil pressureViews : 949 Replies : 4Users Viewing This Thread : |
|
Thread Tools | Display Modes |
May 14th, 2004, 09:21 | #1 |
Not an expert but ...
Last Online: Apr 26th, 2024 12:45
Join Date: Dec 2001
Location: Boncath
|
Oil pressure
For the last 296,000 miles the oil pressure light has flickered on at idling speed, but goes out as soon as the revs increase.
I have the service records, and I see that from new (1993) Volvo agents periodically fitted new pressure senders, to no avail. Now at last I have got round to measuring the pressure with a gauge, and I find that with the oil hot, it reads 5 psi at 800rpm, 7 psi at 900 rpm, 20 psi at 1500 rpm, 30 psi at 2000 revs, and peaks at 40psi at 3000 rpm. I have almost resigned myself to getting the sump off this weekend and replacing the oil pump and O-rings, but am put off by the difficulty of gaining access. Is the pressure OK for a bit, or would it be sensible to take corrective action now? The engine seems in good condition - no knocks, ticks or rattles, doesn't use oil, just passed its emissions test easily. Any tips on raising the engine, lowering the cross-member? What about the attached brake pipes? I have done this once before with the older shallow sump, but even that was not easy. What do others think? |
May 14th, 2004, 10:08 | #2 |
Senior Member
Last Online: Jun 6th, 2017 14:09
Join Date: Oct 2000
Location: Carrowdore
|
RE: Oil pressure
If it is not broke, don't fix it.
Seems well enough as it is. Ensure oil is changed regularly and use a good filter.
__________________
Neil Stevenson 2000 S40 1600cc. 940 SE Turbo Estate.(sold). |
May 14th, 2004, 13:15 | #3 |
Not an expert but ...
Last Online: Apr 26th, 2024 12:45
Join Date: Dec 2001
Location: Boncath
|
RE: Oil pressure
Thanks Neil - that's what I wanted to hear!
I had just wondered how near broke it was though. I have always changed the oil every 3,000 miles and the filter every 6,000. |
May 15th, 2004, 13:59 | #4 |
Not an expert but ...
Last Online: Apr 26th, 2024 12:45
Join Date: Dec 2001
Location: Boncath
|
RE: Oil pressure
Well, in the event, after noticing that the oil pressure was actually a little lower than I thought, I went ahead and replaced the pump this morning.
It was not such a difficult job as I feared - I devised a way of getting the sump off without having to drop the cross-member. The cause of the low pressure was immediately apparent - the rubber seal in the pipe from the pump to the block was displaced and bulging out exactly like the picture on Brickboard. Both seals were hardened and crumbled as I withdrew the pipe. Having got so far it seemed sensible to replace the pump, in view of its high mileage and unknown condition. The result is a dramatic restoration of oil pressure - from 10 psi at cold idling it is now 60. I don't know the hot figures yet, but they are bound to be an improvement. I am going to write up an article for Volvo Technical Driver, so watch that space if you want to know the details! |
May 16th, 2004, 17:16 | #5 |
Senior Member
Last Online: Jun 6th, 2017 14:09
Join Date: Oct 2000
Location: Carrowdore
|
RE: Oil pressure
Should be good for another 200,000 miles now.
__________________
Neil Stevenson 2000 S40 1600cc. 940 SE Turbo Estate.(sold). |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|