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High mileage 745 Turbo. Oil pump as preventative maintenance?

posted by  Mr brick driver on  Sun Apr 10 07:21 CST 2022
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last visit: Thu Jun 26 04:12 CST 2014
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I have a 1992 740 turbo. It’s approaching 300,000 miles. I need to do the rear main seal. The car runs great ans I plan on keeping it. I would hate for an oil pump to be a weak link. Should I consider replacing this as good insursnce?








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    High mileage 745 Turbo. Oil pump as preventative maintenance?

    uid 55's pic
    posted by  john sargent on  Mon Apr 18 15:43 CST 2022
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    last visit: Wed Oct 22 09:07 CST 2014
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    I would not replace the oil pump. You could check the oil pressure as has been mentioned. Replacing the rear main seal requires removing and replacing the transmission, not the oil pan.

    My 1994 944T has 386,xxx miles. It has had the rear main seal replaced, and the head gasket done. Nothing else other than front seals and a couple of water pumps.
    --
    john








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    High mileage 745 Turbo. Oil pump as preventative maintenance?

    posted by  Volvo From Heck on  Sun Apr 10 14:09 CST 2022
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    last visit: Mon Oct 13 20:56 CST 2014
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    If done correctly (that is--proper "O" rings installed correctly) -- there is no harm in replacing the oil pump (except to your wallet) -- but -- what makes you think the oil pump needs replacing -- engine knock? low oil pressure? And I would point out--if the pan is coming off to replace the pump - why not just go ahead and replace the rod and main bearings. -- Dave








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      High mileage 745 Turbo. Oil pump as preventative maintenance?

      posted by  Nahtanha on  Sun Apr 10 16:50 CST 2022
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      last visit: Tue May 20 10:10 CST 2014
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      Check your oil pressure first. Make sure your crankcase breather tower is clear and clean when also doing your main seal...







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