[Vwdiesel] '84 Diesel Rabbit Motor Oil 15W-40, 10W-40, 5W-40 . . .

[David Cook]

A lot of that "problem" is that synthetic oil does a
great job of cleaning up your engine too.

So, a lot of times on an older engine, you will have
small "leaks" that have been plugged up by soot and
gunk in the oil.  Then when you put in synthetic, it
cleans that gunk out, exposing the plugged leak.

A good thing is sometimes the synthetic oil will
eventually encourage old seals to swell and seal up
some of those leaks.

David


--- Terry Briggs <vbriggs at stny.rr.com> wrote:

> One thing I would advise though, is if you do switch
> to a 100% 
> synthetic oil is to at LEAST put a fresh valve cover
> gasket on the 
> engine, might even want to consider a pan gasket.
> Synth oil is great, 
> but any leaks you have, even if minor, will get
> worse with synth, it 
> flows that much better.
> On Jun 3, 2006, at 12:34 PM, Libbybapa at wmconnect.com
> wrote:
> 
> > In a message dated 6/3/06 12:18:32 AM US Mountain
> Standard Time,
> > pmdolan at sasktel.net writes:
> >
> >
> >> HOWEVER, your oil consumption is very high.  This
> is not cureable by
> >> changing the oil.
> >
> > If it is a stuck ring, using synthetic can free it
> up.  It is also 
> > possible
> > to change to an oil with a somewhat higher flash
> temp and drastically 
> > reduce
> > oil consumption.
> >
> >> I would still bet strongly on the guide seals.  
> They can be changed 
> >> very
> >> easily with the engine in the car.  You need to
> make an "air hold" 
> >> tool to
> >> keep the valve in place while you compress the
> spring (or if you are 
> >> REALLY
> >> brave, let the valve press on the piston - a
> practice that I do NOT 
> >> recommend).
> >> You need the valve spring compression tools, seal
> removal pliers,
> >> installation drift, lash adjusting tools, cam
> alingment and timing 
> >> tools.  If you don't
> >> have, find a friend or shop with the tools, lots
> of experience and 
> >> patience
> >> and use them.
> >>
> >
> > What is the downside to placing the given piston
> at TDC and using it 
> > to keep
> > the valves from falling into the cylinder?  How is
> pressing against 
> > the piston
> > top of significant difference from pressing
> against air pressure?
> >
> > Would it be possible to simply clamp the timing
> belt to the three 
> > sprockets,
> > lift out the cam with sprocket attached and
> reassemble to the original 
> > timing,
> > negating the need for the cam and pump timing
> tools and greatly 
> > simplifying
> > the procedure?
> >
> > Andrew
> > _______________________________________________
> > Vwdiesel mailing list
> > Vwdiesel at vwfans.com
> > http://www.audifans.com/mailman/listinfo/vwdiesel
> >
> >
> Third Wheel engineering
> Custom Design and Fabrication
> 2576 King Circle
> Corning, New York 14830
> Vbriggs at stny.rr.com
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> 


David Cook
Red '86 Cabriolet Diesel Powered
Red '90 g60 Corrado 
Brown and White '78 Westy Campmobile "Bear"
and others in various states of disrepair
Pictures here: community.webshots.com/user/superdave5599

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