Oil gauge

baghall Ben Hal Outlaw Bushranger

1,021 posts · joined Jan 2010 · 2 May 2010, 7:44 pm

#776206

Just fitted oil gauge to my 68 baja, however, it is not reading correctly. It is showing 60 PSI at idle but goes straight to the stop, 100 PSI, as soon as I use throttle. Any help with why this happens would be good.
Thanks

68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car

barls Administrator Causer of Chaos and Mayhem

9,473 posts · joined Jun 2004 · 2 May 2010, 8:09 pm

#776216

you havent crossed over the wires at one end or another have you

“We all pay for life with death, so everything in between should be free.” Bill Hicks
the chaos project - click me

baghall Ben Hal Outlaw Bushranger

1,021 posts · joined Jan 2010 · 2 May 2010, 8:15 pm

#776220

barls wrote:you havent crossed over the wires at one end or another have you

Nah, don't think so. I tried connecions other way round and got nothing.

68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 2 May 2010, 10:03 pm

#776254

Either the sender doesn't match the gauge correctly or you have too much oil pressure from possibly a sticking pressure relief valve or too large oil pump.

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 · 3 May 2010, 12:34 am

#776266

baghall wrote:Just fitted oil gauge to my 68 baja, however, it is not reading correctly. It is showing 60 PSI at idle but goes straight to the stop, 100 PSI, as soon as I use throttle. Any help with why this happens would be good.
Thanks

Best of luck if You can get the gauges to work correctly..
I never could... lol

LEE

- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

baghall Ben Hal Outlaw Bushranger

1,021 posts · joined Jan 2010 · 4 May 2010, 11:29 am

#776529

68AutoBug wrote:
baghall wrote:Just fitted oil gauge to my 68 baja, however, it is not reading correctly. It is showing 60 PSI at idle but goes straight to the stop, 100 PSI, as soon as I use throttle. Any help with why this happens would be good.
Thanks
Best of luck if You can get the gauges to work correctly..
I never could... lol

LEE

Thanks Lee for filling me full of hope! lol

68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 · 4 May 2010, 11:44 am

#776531

those are fairly high figures but is that on a stone cold engine?
pressure will always be considerably higher when its cold
even my old worn 1600s when cold idle at 50psi
the pressure releife valve should stop it going much higher though

like matt said the plunger might be stuck in its bore

Uber Kafer Wolfsburg Wizard

414 posts · joined Nov 2009 · 5 May 2010, 11:29 am

#776751

I am very interested to hear what the cause is.

But as an industrial instrument technician in a previous life I will suggest you check/compare your pressure gauge against another pressure measurement before tearing into the machine it is attached to.

baghall Ben Hal Outlaw Bushranger

1,021 posts · joined Jan 2010 · 5 May 2010, 2:01 pm

#776763

Uber Kafer wrote:I am very interested to hear what the cause is.

But as an industrial instrument technician in a previous life I will suggest you check/compare your pressure gauge against another pressure measurement before tearing into the machine it is attached to.

Yeh know what you mean. I still have to drive it as it is my everyday driver. Idiot light is suddenly on permanantley (need to learn how to spell) and I have all of a sudden lost all my dash lights. Just no time till weekend to chase up problem.

68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car

turbobeetz Learner Dubber

17 posts · joined May 2009 · 9 Jul 2010, 1:00 pm

#789477

Any feedback?

Did you check for any blown fuses?

vlad01 Compulsive Aussie Vee Dubber

4,270 posts · joined Jun 2010 · 9 Jul 2010, 4:08 pm

#789502

Do you have a 30mm pump? If so you need to drill the return passage on the oil relief valve to 8mm as its stock 5mm which is far to small for the GPM of the 30mm pump.

check this.

http://www.thesamba.com/vw/forum/viewtopic.php?t=280293&start=0

71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE

grumble Son of Jim - Creator of Good

2,672 posts · joined Jun 2008 · 9 Jul 2010, 5:51 pm

#789529

Fit a mechanical gauge into the oil sender socket and get a reading from there first.