Date: Mon, 7 May 2007 10:52:24 -0700
Reply-To: Thomas Pfrommer <pfrommer@PHAS.UBC.CA>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Thomas Pfrommer <pfrommer@PHAS.UBC.CA>
Subject: Re: oil pressure
In-Reply-To: <400912.89303.qm@web82714.mail.mud.yahoo.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
David Kao wrote:
> --- Thomas Pfrommer <pfrommer@phas.ubc.ca> wrote:
>
>
>> Actually i do not get a blinking, meaning even with a hot engine and
>> idling now warning occurs. With a cold engine the same, and also when i
>> rev above 2600 rpms everything is fine. BUT when the engine is hot and I
>> rev above 2600 at some point, not right away the buzzer+warning light
>> gets on. A small tip on the accelerator to bring the engine at about
>> 2800 stops the buzzer/warning light. Going then back to idle no
>> blinking occurs. I believe that there is certainly a low oil pressure
>> problem, as at 2600 or 2800 the pressure is not supposed to be around
>> 0.9bar but rather 2 to 3 bar. I am certainly above 0.3bar while idling.
>> The 0.9bar switch is new. What is strange is that the change from the
>> 0.3bar switch to the 0.9bar switch occurs at 2600rpm and not at 2000. I
>> tested it by disconnecting the cable to the 0.9bar switch.
>> Thanks
>> Thomas
>>
>
> Thomas:
>
> So it is unrelated to overheating. Have you checked your oil pressure relieve valve?
> If the sping is stuck and compressed you will get constant low oil pressure.
>
>
I changes the spring last week as I also thought this is the problem.
However I am not sure if it is stuck ... how can i tell? the piston came
out nicely when I changed it and I cleaned everything and put it back
together, with the groove being farther away from the spring .... I hope
that was the right direction ... the bentley for the 2.1l 87 does not
show which site of the piston faces upward, but for the air-cooled it is
shown nicely and i assumed it will be the same way. that means the
spring connects to the outer ring of the piston and it is hollow at the
spring site. The piston is flat facing the engine ... makes sens to me...
aaarrrgggghhhhhh I am running out of ideas what it could be WITHOUT
talking the monster out/apart again NNNOOOOOOO!!!
Thanks
Thomas
> Overheating and rod bearing clearance problem will cause blinking warning light.
>
> David
>
>
>
>
>
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