[Vwdiesel] RE: OT renault td

[greg rich]

I was up literally all night thinking about the situation and it dawned on 
me in the wee hours of the morning
It turns out while replacing the coolant hoses there is a set of metal 
pipes-three in parallel that run coolant and the oil blowby system, the 
block vent hose had collasped and couldn't breathe sending all the blowby 
throught the oi passages into the head...my bad for not checking everything 
once the new hoses were put on but it was many hours of cursing trying to 
get them all on...
I just put 400 miles on it yesterday and it ran great, returned 35mpg @ 
90km/h (for state siders that is 29mpg @ 55 mph) pretty impressive numbers 
for a 5000+lb motorhome of 20 feet!

Thanks for the ideas
Greg

>Subject: Re: [Vwdiesel] OT Renault turbo diesel runaway!
>To: vwdiesel at vwfans.com
>Message-ID: <20040811021629.34797.qmail at web61203.mail.yahoo.com>
>Content-Type: text/plain; charset=us-ascii
>
>there are fairly large holes in the head to let oil
>return to the oil pan. i don't think it would be
>possible for there to be pressure in the crankcase
>without the pressure under the valve cover being
>almost identical.
>
>as far as what happened so suddenly... no idea,
>really. in my experience they haven't done that. tho
>with all the blowby it must be rings. a leakdown test
>might pinpoint it better.
>
>good luck
>erik
>--- greg rich <greg4vwparts at hotmail.com> wrote:
>
> > Hey Gang
> > I have a 1984 Winnebago lesharo (Rialta predecessor)
> > with a Renault
> > powertrain, 2.1 turbo diesel (J8S engine), around 80
> > hp and ample for this
> > motorhome. We bought it last year in NYC and drove
> > it home to Ottawa (10
> > hours) without problems, then camped a few time etc
> > racked up another few
> > hundred miles. I recently fixed it up (new cooling
> > system etc) and on the
> > test drive it took off on engine oil after about 10
> > minutes of driving at
> > 55mph. I removed the intercooler and cleaned it
> > (pint of oil) and all the
> > hoses then ran the engine without the blow by
> > hoses-it has a block hose, cyl
> > head hose (valve cover), vent hose to turbo and a
> > seperator with a drain
> > back to the oil pan. The valve cover has alot of
> > pressure which it didn't
> > have when we bought it and if you rev the motor up
> > to around 3000 rpm oil
> > will come out of the valve cover! I plan on routing
> > the hose in a jar to see
> > how bad it is but what could have failed to cause
> > this suddenly? I though a
> > ring would pressurize the crankcase vent not valve
> > cover right? I have owned
> > 20 VW diesels and learned what a low compression
> > motor sounds like/behaves,
> > this motor does not exhibit those other traits!
> >
> > HELP!
> >
> > Greg

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