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Re: [T3] Blow by


<x-charset iso-8859-1>It's a 72, All hoses from the crankcase breather are connected, no apparent
blockages.


----- Original Message -----
From: "Jim Adney" <jadney@vwtype3.org>
To: <type3@vwtype3.org>
Sent: Thursday, November 01, 2001 9:40 AM
Subject: Re: [T3] Blow by


> On 1 Nov 2001, at 9:14, dubdriver wrote:
>
> > My engine has some serious blow by.  Oil is being blown out the
crankcase by the
> > fan.  This then drips onto the exhaust and smokes like the blazes once
the
> > engine gets warm.
>
> What year? Check that your crankcase ventilation hoses are all connected
> and not blocked. Has this engine by any chance been rebuilt using the
> cheap drop-in oversize pistons/cyls? If so, the solution is probably to go
> back to std 85.5 P/Cs.
>
> > The engine runs good and has plenty of power....
> >
> > next problem.  When cold, the engine starts on about the first
revolution.
> > When warm it will start immediately within 5-6 minutes of shutting it
off.
> > If it sits for longer than that, it's a bear to start, usually taking 2
or 3
> > long attempts (6 seconds or so) with the pedal on the floor.
>
> The heat soak after shutdown is boiling off the gas in your fuel lines.
Their
> may be a small leak that allows air to get back in the lines after things
cool
> back down. The easy solution is to just turn the key from OFF to ON
several
> times, each time letting the fuel pump run for its ~1 sec. This will
prefill the
> lines without running the starter.
>
> > Might I have a valve too tight?  Could this be causing both problems?
Fuel
> > pressure is 30psi.
>
> It's not a valve. You might watch the fuel pressure after you shut down
the
> engine. If it drops all the way to zero, then the check valve in the pump
is not
> working and this will make the heat soak problem worse.
>
> -
> Jim Adney
> jadney@vwtype3.org
> Madison, WI 53711-3054
> USA
>
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