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  1. S

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

    I do not know much about the hz but installed two after market oil pressure gauges + sender , one mechanical and one electric on my 2h. Worthwhile in my opinion, on the 2h gauges are not very accurate. The autometer and marshal gauges are much more real time responsive. Did an aftermarket temp...
  2. S

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

    get an fsm
  3. S

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

    with ya there brother! clean oil is the best
  4. S

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

    reality is we don't need much, most oil gauges are a simple red light when there is no oil
  5. S

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

    temp I use aussie engine guard, it's a ripper.
  6. S

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

    oh oh, 690k's! well no wonder, there is a guy here who got a million k's on his 12ht with the same oil pump. Whilst you probably alright for a bit, personally I would be slowly be gathering parts for a rebuild for the future. Parts go up in price, not as quick as vegies, but noticable. I am...
  7. S

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

    search on here, or google, i did it along with a 'bypass oil filter rave'. I feel naked now without my extra oil and temp gauge. mind you, always a little something on old cars..
  8. S

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

    Not too familiar with hz and it's longevity, (think they can get a million k's) but on the 2h, it can be increased with the pressure relief valve by packing the spring with washers. Not that this is advisable. The 2h can blow oil filters with too much oil pressure if the relief valve gets...
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