[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: Intercooler filth
In message <9412230120.AA04784@newkla.kla.com> Steven Buchholz writes:
> Neither the intercooler on my '83 ur-Q or the one on my '88
> 5000CSQ have sensors attached.
Fascinating. My sensor is a small electronic component - the size and shape
of a small diode or resistor mounted sideways to the airflow through a hole
drilled in the rear ouput end of the intercooler itself. It projects about
1/4" into the airflow/ My garage is very evasive about its function, too. I
suspect they don't know.
> My one concern is that if the intercooler is filthy, is the
> oil cooler clogged as well? The intercooler is mounted behind
> the grille, but the oil cooler is hanging down underneath the turbo.
That corner of the car has a fiberglass panel underneath it. Judging by the
condition of the screws that held it in place, it hadn't been moved since the
car was built. The intercooler is on the extreme right of the car, right in
front of the front wheel on the driver's side, and has foam rubber pads on its
sides and underneath to form two air chanbers - a high pressure area in front
of the intercooler, fed through slots (no grill - part of the problem) in the
front bumper. The air intake to the filter is above the intercooler.
The area behind the intercooler and towards the car's centerline is a low
pressure area that serves to draw air through the intercooler, oil cooler and
out of the alternator cooling air ducts. The oil cooler is mounted low and
nearer the centerline, but behind a tough woven wire grid. With the fiberglass
panel off, both front and rear of the oil cooler are easily accessible. I've
poked it through with brass wire and an airline. Oil temperature has never
been a problem, in fact I've often felt it's a little low on occasions.
Apropos of the above - there's no way the air filter would come out through the
headlight opening. It has to go backwards after the fool system's been
The intercooler is exposed to small stones, etc., coming off the road because
there's no screen of any kind in front of it, nor is there provision for one.
The front of the intercooler has obviously suffered for this, and lost of the
vanes show impact damage. There's plenty of room to put in a grid like the one
protecting the oil cooler - I think I might just drop the intercooler out,
clean it and install such a grid.
There's quite a large space up behind the air dam that's ideal for mounting a
remote radar detector - lots of room, nice and dry, only plastic in front of it
I wish I had an easy way to upload .GIFs - taking the pictures would be no
Sievers Consulting UK
Vice Chair, UK Computer Measurement Group
Phone +44 385 302803
Fax/BBS +44 1536 723021