Cabby (JH Motor) questions

[MK1Scirocco16v at comcast.net (Dave Ewing)]

The best way to check the oil pressure is to get a external gauge to check
at the port on the head.  Since you have a bar gauge and an idiot light it
probably does need a pump as they have to be on separate circuits (bar gauge
needs a different sender than the idiot light).  Make sure that everything
is hooked up correctly, though, as the bar gauge will have a much larger
sending unit than the idiot light.  Usually the idiot light sender is on the
end of the head and the bar gauge sender is on the top of the oil filter
flange.  Check to see if the two are swapped?  I don't know what that would
do but it seems the gauges would be getting the wrong information.

Lastly, if it needs a pump, they are easy to replace.  Probably 1 hr of work
with the right tools!!

HTH!

Dave
----- Original Message ----- 
From: "calimus" <calimus@techography.net>
To: "Scirocco-l" <scirocco-l@scirocco.org>
Sent: Tuesday, September 16, 2003 11:00 PM
Subject: OT: Cabby (JH Motor) questions


> Ok, I have some oil pressure questions on the JH motor that in the wifes
> replacement cabby,  When we bought it the gages didn't work (oil pressure,
> oil temp) but I saw the wires were disconnected and since the ppl we
bought
> it from wouldn't know oil from water I knew that it wasn't something they
> did.
>
> Anyway, once I got the car home and started transfering some parts from
the
> old cabby to the new, I went ahead and connected things back up.  Took the
> car for a spin to test the shift linkage work I did and after about 15min
> was meet with a nice surprise when I stopped at a light.  The oil light
was
> blinking, so I checked the bar gage and holy shit, it's at 0 when it was
at
> 4-5 when I started the car up.  So I made sure to get home right away.
> Checked the oil (hand't before since they had a receipt for an oil change
> not two weeks prior) and found what looked to be oil, but no way was it
> thick enough, looked to be 5w-30 er something like that.  So I figured
maybe
> it was just too thin.  Changed the oil today and used good ole' 20w-50.
> While it took a bit longer, the same result was found.  Stop long enough
and
> the pressure drop to zilch and the light starts blinking, I start getting
> pissed.
>
> Now, the oil pump was replaced in 97' on this car and I'd hate to think
that
> I need to do it again, but I might.  Any easy ways to tell if the gage is
> full of crap?  Also, does the pressure gage trigger the light at all, or
is
> there a seperate sensor for the gage and the idiot light?  Any tips would
be
> great, i do have the bently, I'm just too damn tired to attempt to read it
> right now and I won't get a chance again till tomorrow after work, but I
can
> read my e-mail all day while at work.  So you guy's just became the lazy
> man's bently, sorry.
>
> Scirocco Content: My rocco has been running great since July 5th, getting
a
> constant 31mpg over all and will not prollie self destruct once I get in
it
> tomorrow morning.
>
> Thanks,
> William Snyder
>
> 88' Scirocco 16v
> 89' Cabriolet 8v (R.I.P.)
> 89' Cabriolet 8v (new, but not so improved)
> 71' Karmann Ghia
>
>
>
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