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RE: RE: [engine] idle hunting...
oh yeah, I forgot to mention that I've done the following this morning:
-cleaned air 'flapper'
-cleaned and replaced air idle stabilizer
-cleaned air boot to throttle body and cleaned as much of that as I could
just got back from DAP w/ injector seals....as other post asks, how hard
should I pull AND/OR am I even supposed to pull?
Dan
'87 16v 'Rocco
'81 Rabbit Sport Truck
'00 Jetta
Tam-pa, FL
http://home.earthlink.net/~danws69/index.html
-----Original Message-----
From: owner-scirocco-l@scirocco.org
[mailto:owner-scirocco-l@scirocco.org]On Behalf Of Daniel Snow
Sent: Saturday, October 20, 2001 12:06
To: 'Fry, Larry'; 'Dan Bubb'
Cc: 'roc E-mail'
Subject: RE: RE: [engine] idle hunting...
when the idle drops to stalling point, the oil pressure reads 0~.5 which I
know to be unacceptable.....at a normal idle it sits around 1~2. I have an
Audi 4000S gauge and sending unit. The lifters don't tap unless the pressure
stays too low for a minute or two....then it starts tapping for a while
until I can maintain a pressure of at least 4~5 for a few minutes sustained.
oh yeah, and the actual spelling on the truck is:
Sportruck .... 1 t, I had to look twice to make sure.
Dan
'87 16v 'Rocco
'81 Rabbit Sport Truck
'00 Jetta
Tam-pa, FL
http://home.earthlink.net/~danws69/index.html
-----Original Message-----
From: Fry, Larry [mailto:LEF@chem-tronics.com]
Sent: Saturday, October 20, 2001 10:39
To: Dan Bubb; danws69@earthlink.net
Cc: 'roc E-mail'
Subject: RE: RE: [engine] idle hunting...
DanRabbitSportTruck-
What do you see when you are watching those gages? I mean, is the oil
pressure normal and the lifters still tap? (bad lifters) Or is the oil
pressure down, even at above-idle rpms? (bad oil pump) You should have
about one bar OP per 1000rpm.....when at normal operating temperature.
Larry sandiego16V
-----Original Message-----
From: Dan Bubb [mailto:jdbubb@ix.netcom.com]
Sent: Friday, October 19, 2001 3:33 PM
To: danws69@earthlink.net
Cc: 'roc E-mail'
Subject: Re: RE: [engine] idle hunting...
I'd say if you have to "get some good rpms on a straight-away." then you
have some problems. Either the lifters are trash or the oil pump is trash.
Just raising the RPM to a normal idle speed should stop any lifter noise if
everything is OK.
Dan
----- Original Message -----
From: dan <danws69@earthlink.net>
Cc: 'roc E-mail' <scirocco-l@scirocco.org>
Sent: Friday, October 19, 2001 1:59 PM
Subject: RE: RE: [engine] idle hunting...
> yeah, what he said.... :)
>
> If the rpms don't drop from the time I hit the key, it won't tap, but if I
> come up to a few stop lights in a row and my car semi-stalls, then it taps
> for a while until I have a chance to really get some good rpms on a
> straight-away.
>
> I didn't mention that I do have gauges I watch ALL the time.
>
> Dan
> '81 Rabbit Sport Truck
> '87 16v Scirocco
> '00 Jetta
> Tam-pa, FL
> http://home.earthlink.net/~danws69/index.html
>
> -----Original Message-----
> From: Neal Tovsen [mailto:res00ffj@verizon.net]
> Sent: Friday, October 19, 2001 13:10
> To: Fry, Larry
> Cc: danws69@earthlink.net; roc E-mail
> Subject: Re: RE: [engine] idle hunting...
>
>
> But what Dan's describing is oil starvation from the RPMs falling so low
> (near 0). This describes lifter tapping (the correct term is "cam
follower"
> on an OHC engine), and has nothing to do with the block. However, if the
> tapping doesn't immediately go away when RPMs go back to normal, it may
> indicate new lifters are needed or that his oil pump is weak. Neither are
> terribly difficult or expensive, but that's another story and I presume
> isn't the problem...
>
> Neal
>
>
> >
> > From: "Fry, Larry" <LEF@chem-tronics.com>
> > Date: Fri, 19 Oct 2001 08:56:41 -0700
> > To: danws69@earthlink.net, "roc (E-mail)" <scirocco-l@scirocco.org>
> > Subject: RE: [engine] idle hunting...
> >
> > lifters tap....rods knock. Sounds like you will be rebuilding the lower
> end
> > soon.
> > I've been chasing the same idle problem since I bought my "87 16V two
> years
> > ago. If you uncover the cause, let the list know!
> >
> > on the same post; my in-car voltmeter reads one volt lower than my
> > multimeter says the batt/charging voltage really is (e.g. 12.5V vs.
> 13.5V).
> > Anyone got the reason/fix?
> >
> > Larry sandiego16V
> >
> > -----Original Message-----
> > From: dan [mailto:danws69@earthlink.net]
> > Sent: Friday, October 19, 2001 8:18 AM
> > To: roc (E-mail)
> > Subject: [engine] idle hunting...
> >
> >
> > ...are there any on-line tech procedures done for this subject yet? I've
> > heard some talk about an air/bypass valve? I recently had that funky
> 2-piece
> > hose crap out on me, and aside from the high idle, it wasn't doing this
up
> &
> > down crap.
> >
> > My current situation is:
> > -car starts fine
> > -when coming to a stop sign/light, rpms drop (alt light comes on
briefly)
> > rpms rise to 2000, if I don't tap the gas, it'll drop way low and die.
> >
> > NOW GET THIS:
> > If I have the a/c on, idle is PERFECT. Luckily I'm in Florida, but
> > occasionally we get nice weather...
> >
> > I really HAVE to fix this because of the side effects of the idle
problem:
> > -when it drops super-low my oil pressure drops too low and then I get a
> > scorching case of lifter-knock.
> > -alternator stops charging properly, it charges, but not at the level
that
> > it started at (i.e. 10.5~11 VDC) - (yes, I've verified my gauge by
> sticking
> > my multi-meter on the battery terminals).
> >
> >
> >
> > Sorry for the longer-than-usual post from me.
> >
> > Dan
> > '81 Rabbit Sport Truck
> > '87 16v Scirocco
> > '00 Jetta
> > Tam-pa, FL
> > http://home.earthlink.net/~danws69/index.html
> >
> >
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[Disclaimer]This e-mail is strictly confidential and intended solely for the
addressee. It may contain information which is covered by legal,
professional, or other privilege. If you are not the intended addressee you
must not use, disclose, or copy this transmission. This E-mail is not
intended to impose nor shall it be construed as imposing any legally binding
obligation upon GKN Aerospace Chem-tronics Inc. and/or any of its
subsidiaries or associated companies. Neither GKN Aerospace Chem-tronics
Inc. nor any of its subsidiaries or associated companies gives any
representation or warranty as to the accuracy or completeness of the
contents of this E-mail. GKN Aerospace Chem-tronics Inc. shall not be held
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