Re: vacuum leak questions

[16v Jason <jason@scirocco.org>]

At 04:47 PM 5/1/2000 , Alex Ting wrote:

>ok, so all this talk about flammable shit and exploding
>intakes has me a bit worried.  Is there a better way to find vacuum leaks?


Stop worrying, nothing's gonna happen. :)  They're busting my chops. :)

(Of course, I wouldn't recommend spraying ANYTHING on a glowing red-hot 
exhaust manifold, but use common sense here).


>And I didn't think the hesitation was ignition related, because it's
>not consistent thru the revs.  Wouldn't that sort of problem not just
>be confined to low revs?

Not necessarily.  Having bad wires, for example, will cause low-rpm 
sputters and hesitation, and the car will run fine over, say, 2500rpm.  The 
ignition system is most stressed under low-rpm, high-load driving, which 
sounds like your problem.

Not that my suggestion is a definitive answer-- but it's something I would 
check before you went any further.  Wires and vacuum leaks are easy enough 
to pin down, so I'd start by making sure they're OK before you move into 
more in-depth diagnosis.

But I can't, for the life of me, think of anything else that causes low-rpm 
hesitation... my guess is it's probably ignition-related.

HTH
Jason




>thanks,
>
>Alex Ting
>'86 zender z400 roc
>'83 mad max turbo roc
>'97 ducati 748 monoposto
>
>Account Manager
>Millennium Solutions Group, Inc.
>575 Menlo Dr. #4
>Rocklin, CA  95765
>
>Phone:  888.801.2001 ext. 228 or 916.630.2001
>Fax:  916.630.2000
>email:  alext@nu2u.net
>icq #19613213
>-----Original Message-----
>From: 16v Jason <jason@scirocco.org>
>To: Alex Ting <alext@nu2u.net>; scirocco list <scirocco-l@scirocco.org>
>Date: Monday, May 01, 2000 11:43 AM
>Subject: Re: vacuum leak questions
>
>
> >At 02:09 PM 5/1/2000 , Alex Ting wrote:
> >
> >>What are the best methods to locate vacuum leaks in a
> >>regular CIS system?
> >
> >Spray very strong carb cleaner around the engine while it's running.  Any
> >vacuum leaks will kill the engine very quickly.
> >
> >
> >>Is 22-24" of vacuum at idle too much and would it cause
> >>running problems like low end hesitation?
> >
> >Dunno, sorry.
> >
> >
> >>And, I know this is a sorta general question, but what else would
> >>cause a low end hesitation, and then disappear when boost (turbo car)
> >>kicks in around 3K?
> >
> >Probably something ignition-related.  Check distributor, wires, and plugs.
> >
> >GL!
> >Jason
> >
> >
> >
> >
> >>any and all help is appreciated!
> >>
> >>Alex Ting
> >>'86 zender z400 roc
> >>'83 mad max turbo roc
> >>'97 ducati 748 monoposto
> >>
> >>Account Manager
> >>Millennium Solutions Group, Inc.
> >>575 Menlo Dr. #4
> >>Rocklin, CA  95765
> >>
> >>Phone:  888.801.2001 ext. 228 or 916.630.2001
> >>Fax:  916.630.2000
> >>email:  alext@nu2u.net
> >>icq #19613213
> >>
> >>
> >>--
> >>Email problems to: scirocco-l-probs@scirocco.org  To unsubscibe send
> >>"unsubscribe scirocco-l" in the message to majordomo@scirocco.org
> >
> >
> >
> >
> >----------
> >1987 Scirocco 16v
> >1989 Mercedes 190E Sport Euro
> >
> >
> >http://members.aol.com/rocco16v




----------
1987 Scirocco 16v
1989 Mercedes 190E Sport Euro


http://members.aol.com/rocco16v  

--
Email problems to: scirocco-l-probs@scirocco.org  To unsubscibe send
"unsubscribe scirocco-l" in the message to majordomo@scirocco.org