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  1. sunrk

    oil pressure on 1hz - what causes is to drop and what can be done to 'fix' it?

    What are the actual oil pressure specs for a 1hz motor? I'm aware the Toyota factory gauge in diesel vehicle with an oil pressure gauge is uncalibrated.
  2. sunrk

    oil pressure on 1hz - what causes is to drop and what can be done to 'fix' it?

    I have a Watchdog TM2 for coolant temp (sensor mounted to top of motor near radiator hose connection), but need to figure out what do to if I want a permanent oil pressure monitor or not.
  3. sunrk

    oil pressure on 1hz - what causes is to drop and what can be done to 'fix' it?

    Soooo. what is the best way to set up to have a secondary, proper oil pressure gauge even if it's not a permanent thing fitted in the dash but one that can be connected when required for testing? Is there a need to monitor both oil pressure and temp or can it be presumed that oil temp and...
  4. sunrk

    oil pressure on 1hz - what causes is to drop and what can be done to 'fix' it?

    Thx it definitely is happening only with the engine warmed up. When the motor first starts the oil pressure shows a good measure on the gauge and as it warms up the pressure readings go right down. I checked the oil level today since I'm in the engine bay doing the fender panel job and it's...
  5. sunrk

    oil pressure on 1hz - what causes is to drop and what can be done to 'fix' it?

    I'm aware that a very old 1hz like the one in my 80 has a lot of wear and potentially blow-by. I'm noticing when driving that the oil pressure is not coming much above 1/3 anymore and when idling (hot motor) the pressure goes to about 1/6 on the gauge. I always change the filter with a genuine...
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