Date: Mon, 23 May 2016 01:41:23 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: Oil pressure light and buzzer
In-Reply-To: <CAEwp_cQB+sErkNUmzZDOTQRGz8-CWo4P-SVWw-WM0HNUaFLW1w@mail.gmail.com>
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The Waterboxer does not like 10w-30. Who rebuilt the engine? Was the case actually measured for wear at the bearing journals and align bored? This is the usual problem with rebuilt engines not maintaining sufficient oil pressure. Oil pressure testing with the van sitting will not reveal the problem. You have to leave the gauge on and drive on the highway for a while. As for the switches many of the aftermarket ones are not reliable. Go to the dealer and pay the $$$. Also make sure the oil level is correct and not over filled. Over filling will cause the oil to overheat and lose viscosity. Adding a real oil cooling system can also be helpful.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Marc Perdue
Sent: Sunday, May 22, 2016 10:50 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Oil pressure light and buzzer
Hi all,
My '87 Westy auto is having the problem wherein the oil buzzer and light come on after about 15 minutes of driving when the RPMs drop below around 2500 RPMs. I've had the oil pressure checked and it is fine. A friend of mine is having the identical problem. Is the high pressure oil pressure switch, part number 068919081A, the culprit here? I checked the archives and it appeared that there may have been a problem with some of them being too sensitive or something...? I'm trying to find the right part get this sorted out. My friend is about ready to take a hammer to his buzzer . . . Mine is going to be fixed by the guy who rebuilt the engine. He says he got a bad batch of switches. I'm just trying to find which is the right part for my friend to order . . .
My van has a newly rebuilt engine and is running Pennzoil 10w-30. I've never run less than 20w-50 in it and never had this problem, but the guy who built the engine swears that the pressure is fine and this weight of oil should be fine, that it's a faulty oil pressure switch.
My friend is running 15w-50, I think, and has a fairly fresh engine as well. I suspect, but do not know for sure, that his oil pressure is fine.
Bus Depot has this one:
http://www.busdepot.com/068919081a
Is this the right switch to fix this problem?
Thanks,
Marc Perdue
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