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High Oil Pressure...


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12 replies to this topic

#1 tundrabrat

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Posted 23 June 2011 - 06:15 PM

Just got the Brat running... runs great BUT the oil pressure is high (60 at idle, pegged at 75 when driving).

I don't know if there is a way to adjust it OR is it likely a faulty sending unit.

I know how to deal with low pressure... just not high pressure.

Thanks...

Edited by tundrabrat, 24 June 2011 - 02:53 AM.


#2 Subarule

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Posted 23 June 2011 - 06:46 PM

Don't know what year & engine you have but what you describe is normal for my car. It's an '86 GL and I bought it new off a Sube dealer's car lot in '86. It's running very sweet and no oil issues ever with it. Idle oil pressure is about 65 and driving pressure goes up into the 70s. Not a problem. I see it as a plus.

#3 tundrabrat

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Posted 24 June 2011 - 02:54 AM

That makes me feel better, thanks.

#4 heartless

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Posted 24 June 2011 - 06:18 AM

the stock gauges are not known for being ultra accurate.

My question would be what weight oil are you running? - different oil weights will give very different readings in the same car

#5 Subarule

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Posted 24 June 2011 - 12:44 PM

I've always run 10-40.

#6 Suba_GL_87

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Posted 25 June 2011 - 01:45 AM

i think you was over tight oil filter. need little tight 3/4 turn and see a little drip oil. because of need a air oil pressure out.

I was have a problem with my oil pressure highly to 90...cuz i was stupid do over-tight from oil filter. :rolleyes:
best luck.
Cruz

oil must be on 5-30 for EA81/82 and save money your fuel economy.

#7 987687

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Posted 25 June 2011 - 08:08 AM

What exactly are you saying? Are you really saying you should leave the oil filter loose so it leaks :eek:

#8 ihscout54

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Posted 25 June 2011 - 09:55 AM

What exactly are you saying? Are you really saying you should leave the oil filter loose so it leaks

I was a lost on that too.

Oil brand/type/viscosity is almost like a political debate with car guys, everyone has their own set of religious standards. BUT our owners manuals disagree on the 5w30 for ea81/82, unless its really cold. It flat out states in all manuals Ive seen that "5W-30 is not recommended for sustained high speed driving". Perhapse overseas that is not the case but why risk troubles? I live in the desert South West and I only run 20W-50 in my EA-81's.
I have also found the high oil pressure thing to be pretty common on these, especially if you only take short trips.

#9 987687

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Posted 25 June 2011 - 09:59 AM

You can't judge high or low oil pressure from the stock gauge. If that's what you get your readings from, you have no grounds to state you have an oil pressure problem. My oil pressure gauge always reads something, and moves when I rev the enigne. That's about all I use it for. If it drops to zero I'll be worried, but otherwise they're useless for any accurate readings.

It's really doubtful you have high oil pressure anyway, if the engine runs well and doesn't make any bad noises it's probably fine..

#10 Suba_GL_87

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Posted 25 June 2011 - 03:11 PM

use a common sense.
do not over tight of oil filter, thats would be cause high oil pressure.
just do a little tighty and see A LITTLE drop oil...not a leakkyy/drip oil.

What exactly are you saying? Are you really saying you should leave the oil filter loose so it leaks :eek:



#11 zacyork

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Posted 25 June 2011 - 03:32 PM

use a common sense.
do not over tight of oil filter, thats would be cause high oil pressure.
just do a little tighty and see A LITTLE drop oil...not a leakkyy/drip oil.


where have you heard oil filters that are put on too tight cause high oil pressure? i am an automotive technitian and have never heard of this. putting them on too tight just makes it frustrating the next time you gotta take it off. it can olso ruin the gasket causing a leak.

#12 987687

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Posted 25 June 2011 - 05:57 PM

I don't usually call bull************. But, putting on the filter too tight will not cause high oil pressure.
As zacyork said it just makes it a pain to get off..

Putting it on too loose will cause it to fall off. And that causes low oil pressure...

#13 Rollerball

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Posted 25 June 2011 - 10:46 PM

I just had my oil pressure sending unit gauge replaced.

My reading are similar as posts above. I'm about 65 at idle and around 70-75 at during driving.

I had the same readings before just a really bad leak from the gasket on the sending unit.

Rollerball




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