Date: Wed, 25 Feb 2009 19:31:44 -0800
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: 1.9 oil light/preassure issue
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the Bus Depot listing is correct.
on page 17.7 of the Bentley manual it shows the oil pressure switch under
the left push rod tubes is .3 bar.
where confusion may enter is for 2.1 wbxr engines .......those have two oil
pressure switches.......the 'normal' .3 bar one under the left push rod
tubes ............and a 2nd one to the left of the crank shaft
pulley............on page 17.7 it shows that op switch as being .9 bar.
1,8 bar doesn't make any sense. Someone might have misread or misconstrued
something there.
while I'm here..........I drove and have in possession a 1.9 waterboxer
engine on which the oil pressure warning light is on any time it's below
1,500 rpm warmed up !
And I don't think it's the sender either. Runs great too. I even
accidentally took it to 72 mph in 4th ( 5 speed trans ) going over the crest
of a freeway hill once........that was probably over 6,000 rpm
........didn't hurt a thing. 1.9s have very rugged bottom ends.
And the only two choices really are .......
put an oil pressure gauge on it and find out what the real oil pressure is,
or try another sender.........that's the easier/cheaper 'test' in the short
term, but the oil pressure gauge is the real right thing to do.
Some high miles engines idle at zero oil pressure warmed up, not that we
like to see that.
Scott
www.turbovans.com
----- Original Message -----
From: "neil N" <musomuso@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, February 25, 2009 12:53 PM
Subject: Re: 1.9 oil light/preassure issue
> On Wed, Feb 25, 2009 at 12:29 PM, Doug <shirewood@wildblue.net> wrote:
>>
>>
>>> Is the light flickering, or solid on?
>>
>> The light flickers after a few miles and works it way up to steady after
>> 10
>> to 20 miles.
>
>
> If you don't get a spare new switch, get a gauge on that engine asap. :)
>
>
>>> It's possible the oil pressure switch is failing. Do you have a known
>>
>> working spare to swap in?
>>
>> I don't have any spares but I guess I could buy one and at worst end up
>> with
>> one.
>
>
> Yup. They look cheap too. Like less than $10.
>
> In checking the price, I see there is a discrepancy in oil pressure
> switch ratings on the 1.9 WBX. Bentley sez: Digijet '83 '84, '85
> switch is 1.8 bar. Allans comment and looking at Bus Depot shows the
> switch at .3 bar.
>
> http://busdepot.com/details.jsp?partnumber=028919081D
>
> Likely this has been covered in the archives, but what's up with that?
> Anyone?
>
> Neil.
