Date: Fri, 8 Jul 2005 11:05:45 -0500
Reply-To: Jim Felder <felder@KNOLOGY.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jim Felder <felder@KNOLOGY.NET>
Subject: Re: slow pressure buildup [diesel]
In-Reply-To: <200507081501.j68F16I24259@nlvdhw90.asml.nl>
Content-Type: text/plain; charset=US-ASCII; format=flowed
I have the same symptoms exactly--and I do mean exactly-- and like you,
physical conditions don't seem to matter.
Partly because of this, I am hurrying along a conversion to a
freshly-rebuilt TD engine. I won't do it immediately, but I will
perform a post-mortem on this engine eventually and will tell you what
I find. Within the past two years I have put a bottom end in it (end
play was bad, not the journals) and head, so I have seen most of the
engine within a 30K mile time frame. I therefore would be able to spot
anything worn except the intermediate shaft bearings.
I measured the oil pump per bentley during the bottom end rebuild and
it was within spec.
I can say anecdotally that the oil pressure "problem" seemed coincident
with an increase in consumption (burning, the car doesn't leak) but the
engine runs well.
I'll save your email and let you know what I find, meanwhile will post
your message on the yahoo! diesel list.
Jim
On Jul 8, 2005, at 10:01 AM, Jaap Nauta wrote:
> Although my diesel runs fine for some years, there is one thing that
> keepsing me, and I wasn't able to find any info on it.
> After starting the engine, it take regularly quit some time to build
> up oil
> pressure. Sometimes the light goes off immediatly, sometimes more than
> half
> a minute before it goes off. Outside temp does not matter, nor does
> oil level.
> I never have problems once it's running.
> The weird thing is that the brakes don't have vacuum as long as the
> light is
> flashing. Then suddenly there is a slight change in sound from the
> engine,
> the light goes off and vacuum comes up.
>
> What I do is always wait for the light to go off, sometimes reving a
> bit higher
> helps.
>
> Any thoughts on what could be the cause? I was thinking the oil-pump,
> but that
> doesn't explain the vacuum
>
> Thanks
> Jaap
> 1987 Caravelle Diesel
>
>
>
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