[T3] Runs Great...but very hot... (2)

[Mike Fisher]

Plugged up fuel return line will force fuel into your oil. BTDT

On Fri, Jun 17, 2011 at 6:24 PM, Keith Park <topnotch at nycap.rr.com> wrote:
> What is your gas mileage? It would have to be pretty low to dilute the oil.
> The oil level on our cars is only accurate if the car is absolutely LEVEL as
> well...
>
> The air temp sensor will make it run about 10% rich if its unplugged, if it
> doesn’t run right with it plugged in something is wrong, find it... the head
> temp sensor may be out of spec, the pressure sensor bad or out of
> calibration... not much else sets overall mixture.
>
> Keith
>
>
> Top Notch Restorations
> topnotch at nycap.rr.com
> http://www.a383ina68.addr.com/radiorest/main.htm
> 71 Squareback "Hothe"
> 65 Notchback "El Baja Rojo"
> 65 Squareback "Eggcrate"
> 87 golf "Winterat"
> 93 RX7 "Redstur"
>
>
> -----Original Message-----
> From: type3-vwtype3.org-bounces at lists.vwtype3.org
> [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of J. Jonik
> Sent: Friday, June 17, 2011 5:59 PM
> To: type3 at vwtype3.org
> Subject: Re: [T3] Runs Great...but very hot... (2)
>
> Just after I sent the message below, I casually checked my oil, expecting to
> have to top it up a little.  No.  It was up over the line...indicating that
> gas is (again) getting into the engine.   That, probably, accounts for
> Running Hot.
>   Now what?
>  Except for the novelty that the car runs great (otherwise), it's almost
> back to Page One.
> Is it injectors? Should I just guess and get all new ones?...or start
> testing the spray and volume and all that?
>  Is it that unconnected Temp Sensor at Air Dist?
>   Is it...what?
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> This is about T 3, 71, Std shift.     ...the one that had endless Fuel
> Problems that seem to be now fixed by a hundred adjustments and tests,
> unhooking Cold Start, Changing the Control Unit and so forth.  The Temp
> Sensor in the Air Distributor is also unplugged.   If I plug it back in,
>  it runs kind of rough.
>
> It's been mostly fine for months...except
>  one thing...Idle would, at any time, stay high for a while.  Then
> later, hot or just warming up, dip to low enough to flicker the oil
> light. While driving it was fine.  It never stalled.
>
> The other day, on a hunch, I changed the Pressure Sensor...and now the idle
> sits right where it should...no more highs and lows.
>  Does that make perfect sense?
>
> One problem left.   After maybe 20 or so miles, highway and in town, the
> engine is really
>  hot...hotter than it should be.
>
> What's the list of probable reasons for the heat? (No...there's no rags in
> the air ducts.)
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