[DML] Re: BAE Turbo Documentation
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[DML] Re: BAE Turbo Documentation



The turbo timer and the pressure lubricator systems were necessary
before the improved synthetic oils were available. Coking is not the
big problem it used to be if you use a branded synthetic oil and
change it often. You should also let the motor run for a moment before
shutting it off on a hot day right after a high speed run. Newer
turbos have their bearings water cooled to also help prevent coking.
Turbos do not last forever. The outlet for the motor intake should be
checked regularly for evidence of oil leakage past the turbo seals,
that is one of the first signs that the turbo is in need of service.
Besides the bearings wearing and the rotors not turning you also need
to make sure the wastegate moves freely. If it gets stuck open you
won't get any boost and if it gets stuck closed you will overboost the
motor.
David Teitelbaum
vin 10757


--- In dmcnews@xxxxxxxxxxxxxxx, "Emory  Lehman" <elehman3@...> wrote:
>
> That turbo timer reminds me of the one that is on all the EMD
locomotives.
> If you shut down the prime mover (the diesel engine) there is a
turbo lube
> pump that runs for about an hour to run oil thru the turbo to cool
it down.
> Granted, you don't often shut down a locomotive, but when you do, I
don't
> think they want the turbo to seize up either.
> 
> Emory Lehman
> (Locomotive Engineer)
> 
> 
> > -----Original Message-----
> > From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On
Behalf
> > Of captain_hydrogen
> > Sent: Tuesday, April 04, 2006 9:09 AM
> > To: dmcnews@xxxxxxxxxxxxxxx
> > Subject: Re: [DML] BAE Turbo Documentation
> > 
> > Bruce is right on about the timing and the coking.
> > 
> > I drove a DeLorean with a BAE kit and it to didn't seem to be
> > spooling up. As it turns out, it had never been rebuilt and was
> > probably long overdue. With that in mind, I have heard that the Rajay
> > turbos are difficult or troublesome to rebuild, but I cannot comment
> > from personal experience.
> > 
> > When you have the turbo off the car, take pictures and measurements
> > of it and post the info here.
> > 
> > When you take your turbo to your local specialist, ask them if there
> > is a modern turbo that will work for this application. If you can
> > find one with the same turbo manifold flange size, then you will save
> > yourself a lot of headache. Here is the link to the Rajay section of
> > Turbonetics web site (http://www.turboneticsinc.com/turbo_rajay.htm).
> > 
> > Whether you replace or rebuild your turbo, consider installing a
> > Turbo Timer (http://www.apexi-usa.com/product_electronics_detail.asp?
> > id=198&pageNum=1) or a Turbo After-Oiler
> > (http://www.accusump.com/acc_products/acc_turboiler.htm)
> > 
> > Good luck,
> > Ben Ferguson
> > Arizona DeLorean Club, Car Cruise Director - VIN 10365
> > 
> 
> [very long quote trimmed by moderator]
>










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