Date: Sun, 15 Jul 2001 09:23:31 -0500
Reply-To: wilden1@JUNO.COM
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Stan Wilder <wilden1@JUNO.COM>
Subject: Re: new bearings but no change in oil pressure
Content-Type: text/plain
Don't follow my example!
I knew how to do it right and I failed to double check myself.
Remember the thread yesterday of *Oil temp, safe or not?*
Well guys I figured it out.
The plunger on the oil pressure relief valve and spring slipped out of my
hands several times while I was reinserting it back up into the cavity.
As nature demands the valve accidentally went back in upside down (the
solid top is heavier than the hollow bottom).
The small control grove was not in the right position to allow bleeding
at high oil pleasure and make minimal use of the filter and oil cooler.
So in effect; at highway speeds and a very nice new set of bearings I was
bypassing my oil cooler once the pressure reached that magic number (what
is the number?). I was showing as much as 5 BAR pressure at 2500 RPM on a
cold engine and 3.5 BAR at 65 miles per hour at operating temperature.
The only upside to all this is that the oil pressure was so high it saved
my engine (I also backed off and didn't question the gauge, letting the
oil temp settle at a safe range). If you can accept 260 Fahrenheit as
safe. Thats 130 Celsius.
Having had this experience once it wasn't be necessary to make this
mistake again.
I failed to follow the old carpenters rule *Measure twice, cut once*.
And of course Murphy was right there too.
Stan Wilder
83 Westfalia Air Cooled
On Sat, 14 Jul 2001 22:39:25 -0500 Doug Mahone <mahoner3@POPMAIL.COM>
writes:
> I was very surprised to see the oil pressure warning light come on
> after installing new main, rod and cam bearings. It came on after
> driving it on the highway for a few minutes. It only comes on at
> ide
> and goes off as soon as I step on the gas. Just like before. I
> have an
> 80 Vanagon and I am using Castrol 20W50 Syntec. There's only two
> things left to consider. Either I will have to buy a new oil pump
> or
> switch to straight SAE 40 oil. I'll try the oil tomorrow, but I may
> just
> replace the pump anyway. Has anyone ever replaced an oil pump
> without removing the engine? I think I can do it if I remove the
> fan
> assembly and engine bearer while supporting the engine with a jack.
> Wish me luck.
> Doug
> 80 Vanagon
>
> ....................................
> Get your own free email account from
> http://www.popmail.com
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