| [ Total Views: 616 | Total Replies: 12 | Thread Id: 104165 ] |
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 bugzla
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| posted on November 24th, 2013 at 07:25 PM |
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oil pressure problems
hey guys got something weird happening my oils pressure last week went through the roof then today has dropped on the guage now this is the weird
thing when it goes from 20 to 25 for a slight second on a flicker on the guage the idle drops a little as if the engine comes under load
any body got a clue what might be the problem
cheers
stevo
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psimitar
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| posted on November 24th, 2013 at 07:49 PM |
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Sticking relief valve maybe?
madness is in the eye of the beholder  |
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bugzla
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| posted on November 24th, 2013 at 08:50 PM |
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hmm thought that as well but it just fell out when I undid the screw
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bugzla
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| posted on November 24th, 2013 at 09:07 PM |
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plus the oil temp dropped as well
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vlad01
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| posted on November 24th, 2013 at 09:29 PM |
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double check with a different gauge, mechanical one directly on the engine.
71 notchback,
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bugzla
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| posted on November 24th, 2013 at 10:47 PM |
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was going to buy another gauge tomorrow and see what happens
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bugzla
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| posted on November 25th, 2013 at 08:43 PM |
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okay I opted not to buy the gauge only because of the rpm difference when it rises 5 psi the motor loads which cant be gauge problems weird as if it
keeps up tomorrow ill have to buy the gauge
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 matberry
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| posted on November 25th, 2013 at 09:04 PM |
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Yeah, try a mechanical gauge to confirm. Maybe it's electrical???
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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vlad01
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| posted on November 25th, 2013 at 09:18 PM |
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nearly always is.
71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE |
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Craig Torrens
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| posted on November 25th, 2013 at 09:19 PM |
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maybe a bearing problem, causing it to block an oil gallery (or close up the tolerances) and increase the pressure............the engine load is it
trying to seize. Hopefully I'm wrong though !
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bugzla
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| posted on November 25th, 2013 at 09:31 PM |
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im thinking you might be right craig ill start it up tomorrow and see how I go ill hook up a gauge if it keeps going that way but I think craig might
be on top of it 
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matberry
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| posted on November 25th, 2013 at 10:08 PM |
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| Quote: | Originally
posted by Craig Torrens
maybe a bearing problem, causing it to block an oil gallery (or close up the tolerances) and increase the pressure............the engine load is it
trying to seize. Hopefully I'm wrong though !
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yeah.... or that.
Also but unlikely is the shaft intermittantly spinning in the oil pump gear, the rpm drop is an odd one, is it very many rpm?
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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bugzla
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| posted on November 26th, 2013 at 02:55 AM |
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with out having a tach on board around 100-250 rpm, wow the oil pump I thought if it was buggered it was buggered never heard of them spinning on the
shafts but when you think of it, it's possible just filled it full of oil doh ill check it as well when I have the time thanks guys for your help.
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