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Oil pressure drops when clutch pressed

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    Oil pressure drops when clutch pressed

    Hi all, I'm really new to this, so forgive me if the question has an obvious answer that I really should know!
    I've bought a Stag which is driving very well, smoothly and seems to pull well (I haven't anything to compare it to, so this is just guess instinct as much as anything). It is an original 3.0 with an unleaded head and electronic ignition and, importantly for this question, a Smiths oil pressure gauge fitted. Yesterday I took it out for only the third time and I noticed that while the oil pressure normally sits at around 60 psi, when I press the clutch (when stopping at junctions for example), the pressure drops to around 25psi. It goes straight back up to 60psi when I start off again.
    Is this normal, or does this indicate an issue that needs attention? - I've never had an oil gauge in a car before, so I'm not sure what normal behaviour is!

    Thanks for any advice

    #2
    Hi Neil,
    Welcome along, Your oil pressure is perfectly normal, it is dropping when you go to engine tick-over speed. It sounds like you have an aftermarket oil pump as the oil pressure is slightly on the high side. Nothing to worry about.

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      #3
      Don't know about the numbers (oil pressure psi) but the oil pressure is more engine speed related rather than clutch related.
      When you dip the clutch when coming to a halt the engine will return to idle because you have your foot off the gas too.

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        #4
        Wow, that was quick - thank you for your advice, and putting my mind at rest Your advice is backed up by checking that when I increase the revs with the clutch depressed the oil pressure increases. sounds like I'm just a bit paranoid!

        Comment


          #5
          Originally posted by NeilT View Post
          sounds like I'm just a bit paranoid!
          You have passed the first test! Welcome to Stag ownership!!
          Richard
          Mabel is a white 1972 Mk1½, TV8, Mo/d.

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            #6
            you have to be exce ecent...... nuts to own a stag

            Comment

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