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Subject:Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters
From:Alistair Bell
Date:Sun, 2 Mar 2014 07:13:58 -0800

You still don't have it right. 

1 bar = 14.5038 psi
14.5038 X 0.03 = 4.35

Alistair

> On Mar 2, 2014, at 6:54 AM, Dennis Haynes <d23haynes57@HOTMAIL.COM> wrote:
> 
> 14.1 psi = 1 bar. 14.1 x .3 = 4.23. I stand corrected.
> 
> Dennis,
> From my phone.
> ________________________________
> From: Chris S.<mailto:szpejankowski@GMAIL.COM>
> Sent: ‎3/‎2/‎2014 7:30 AM
> To: vanagon@GERRY.VANAGON.COM<mailto:vanagon@GERRY.VANAGON.COM>
> Subject: Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters
> 
> Isn't the low pressure switch .3 bar?  1 bar = 14.5 psi?
> 
> Chris.
> 
> Wysłane z iPhone'a
> 
> Dnia Mar 1, 2014 o godz. 22:55 Dennis Haynes <d23haynes57@HOTMAIL.COM> napisał(a):
> 
>> I think some are missing the main point of the dual oil pressure warning
>> system. The low pressure switch is activated at around 3 psi. On the
>> Waterboxer the high pressure switch is ~12.6 psi. On the inline engines the
>> high pressure switch is ~ 25 psi. Having only the low pressure really means
>> that at speed it is no longer an oil pressure warning indicator but a
>> replace engine indicator. Unfortunately the engine would let you know
>> something was wrong by the strange noises, loss of power, the sudden smoke
>> screen as a rod exited the case.
>> 
>> If your engine can't maintain 12.6 psi at 2,000 rpm you do have a problem.
>> Now with the water boxer it is possible to get the oil so hot that the
>> viscosity drops to the point that you will get the buzzer and there may be
>> nothing wrong except for that high oil temp. However that is still not a
>> healthy situation over the long term. If your driving style or needs are
>> such that this is problem then a good fix is a well-designed oil cooling
>> system. I am convinced that the oil cooler is the main reason I have had
>> such good luck with the engine in Fun Bus.
>> 
>> Dennis
>> 
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
>> mark drillock
>> Sent: Saturday, March 1, 2014 10:35 PM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Oil pressure warnings, WAS: Mann Oil Filter and lifters
>> 
>> I think the biggest improvement was making the oil warning led a blinking
>> warning to better get the driver's attention. The second oil switch I agree
>> is of debatable value except it allowed for a loud warning buzzer to be
>> added to really get the driver's attention while driving. I might be happier
>> with just a 1 switch setup if it was combined with a buzzer that triggered
>> whenever the warning light came on while the engine was running. An oil
>> pressure gauge is not a viable substitute for a warning light but does its
>> uses as an additional item though I know of many people who added one only
>> to have IT be the source of trouble.
>> 
>> Mark
>> 
>> Stuart MacMillan wrote:
>>> Interesting.  But what's that good for other than causing anxiety?
>>> Without a gauge to monitor pressure under various conditions it's
>>> completely useless IMHO.
>>> 
>>> Stuart
>>> 
>>> -----Original Message-----
>>> From: mark drillock [mailto:mdrillock@cox.net]
>>> Sent: Saturday, March 01, 2014 4:36 PM
>>> To: Stuart MacMillan; vanagon@GERRY.VANAGON.COM
>>> Subject: Re: Mann Oil Filter and lifters Was:Engine Starting Problem
>>> 
>>> This supposed correlation of the new dynamic oil warning system with
>>> some weakness in the 2.1 ignores the fact that VW began fitting the
>>> more complex dual oil switch system to all their vehicles in roughly
>>> the same time frame. The major makeover to the electrical system
>>> beginning in 86 Vanagons was merely a convenient point in time to also
>>> add the same modernized oil warning system that many of their other
>>> cars got the year before.
>>> 
>>> Mark
>>> 
>>> 
>>> 
>>> Stuart MacMillan wrote:
>>>> .....
>>>> If you want to really know what's going on with your engine and
>>>> bearings, install an oil pressure guage.  Ignorance is not bliss with
>>>> waterboxers, especially with the 2.1s!  VW knew this, and that's why
>>>> they installed two pressure sensing systems.  .....
>>> 
>>>