Date: Fri, 6 Nov 2015 20:20:53 -0500
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: Oil Pump Replacement.
In-Reply-To: <CAP_Yzp+YY6cZ481+CyM=CdVXgf-Uhbk1ZT97vG49xCZ=KEuSFg@mail.gmail.com>
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How low is your oil pressure? Are there any knocking or clunking noises? Does the engine groan under load? If your pressure is really low due to excessive bearing clearance more oil will not help. On older tired engines oil pressure can also be a problem due to the pump inlet screen being clogged with debris or my favorite silicone type sealers used on valve cover gaskets. Have you tested the oil pressure with a gauge? What is it cold, when does it drop? Does engine temperature or load make a difference? Are you sure you even have a problem?
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Tyler Hardison
Sent: Thursday, November 5, 2015 10:22 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Oil Pump Replacement.
So to be clear, I'm adding the higher volume pump to keep the engine going for a few more months.
I'm still saving for the motor replacement next year. :)
On Thursday, November 5, 2015, Dennis Haynes <d23haynes57@hotmail.com>
wrote:
> Bearing wear is really a symptom of something else going on. I have
> seen low oil pressure due to bad rod bearings, cam shaft bearings
> disintegrating and the oil overheating. The most common cause of low
> oil pressure on the water boxer is the case being shot. Many
> rebuilders or local shops completely miss this. When the engine gets
> hot not only does the oil pressure go down due the lower viscosity but
> the case expands and the main bearing become loser causing oil
> pressure to be lost inside. When really bad you can feel them under
> load, sort of a low speed rumble or groan. On a tired engine an
> oversized pump may just add to the leaks and oil burning due to the
> increased volume. When the tolerances are not there you will more flow but not always more pressure.
>
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com
> <javascript:;>] On Behalf Of Stuart MacMillan
> Sent: Thursday, November 5, 2015 9:04 PM
> To: vanagon@GERRY.VANAGON.COM <javascript:;>
> Subject: Re: Oil Pump Replacement.
>
> Yes, the question is why do you want to replace it? Trying to fix low
> oil pressure with a new or bigger pump won't solve the underlying
> problem for long--bearing wear.
>
> Stuart
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com
> <javascript:;>] On Behalf Of SDF ( aka ;jim lahey' - Scott )
> Sent: Thursday, November 05, 2015 5:28 PM
> To: vanagon@GERRY.VANAGON.COM <javascript:;>
> Subject: Re: Oil Pump Replacement.
>
> yes, on all three types of engines that come in vanagons.
>
> I've never believed in replacing oil pumps myself much tho.
>
> perhaps a larger/higher performance one once in a great while.
>
> scott
>
>
>
> On 11/5/2015 2:46 PM, Tyler Hardison wrote:
> > Can the oil pump be replaced with the engine in place?
> >
> > --t
> >
>
