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  1. #1
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    HIGH Oil pressure?

    hi guys

    So after finding a little bit of positive PVC pressure at cold start and my turbo being oily everywhere ?cause I thought Id do a quick overhaul of the PCV system even though it is only 2 years old just to see if it helps. iv cleaned all the pipes which were fine anyway and replaced the box. I also poked some wire down the 2 block holes which were completely clear as expected really for an engine that is 2 years old following rebuild.

    However... since all going back together I noticed today higher than normal oil pressure. normally on my gauge when cold oil pressure not go above 100 psi once revs start to climb - normal i believe for the oil pressure valve opening to bleed it off. today I got 105 and climbing psi under same driving conditions. it also rockets up even once warm (although not into the 100s) but idles at around 22-24 which is what it did before but if you watch it it will suddenly idle at 30-32psi then back to its normal

    what is going on?! surely a basic pcv change especially with clean ports so unlikely to disturb anything to block anything shouldnt affect oil pressure?
    my money would be on a faulty oil pressure release valve but seems very coincidential...

    could the gauge be faulty? it is a mechanical gauge but also is under 2 years old

    Oil is changed often with a flush every 3-6k milers since rebuild with 5-40 oil

    thanks everyone

  2. #2
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    Some numbers having driven to work...

    Cold after 2.5k rpm getting about 110 psi (7.5 bar) don't want to push much higher in case it keeps going!
    Hot idle 22-30 psi
    Hot 4K rpm 80 psi (5.5 bar)

    How does this compare to everyone else??

    Thanks!


 

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