[Shotimes] Oil blow-by?

Thu, 17 Jun 2004 11:31:09 -0500

Get two 3/8" rubber caps and plug the line that goes from the TB to the
front valve cover.

Paul Nimz
'97 TR
'93 EG mtx

----- Original Message ----- 
From: "Ian Fisher" <dataflash@yahoo.com>
To: "Paul Nimz" <pnimz@v8sho.com>
Cc: <Shotimes@autox.team.net>
Sent: Thursday, June 17, 2004 11:06 AM
Subject: Re: [Shotimes] Oil blow-by?

> So what has to be done on the V6 motor to run a setup
> like this? Which ports get plugged?
>
> Any downsides?
>
> Don't some people run a filter on their PCV lines to
> clean out all of the carbon and oil deposits? I guess
> there is no need (or place) for a filter with the
> system plugged up?
>
> Ian
>
>
> --- Paul Nimz <pnimz@v8sho.com> wrote:
> > This puts a vacuum on the crankcase, though only a
> > slight one on the V6 due
> > to it's anemic PCV setup.  This vacuum will help the
> > rings seal better which
> > will help to eliminate the blowby.  It also will
> > eliminate the moisture that
> > is brought in from the ambient air, which is
> > considerable and about 50% of
> > the blowby gasses.  The vacuum on the crankcase will
> > also help with the oil
> > in the plug well problem.
> >
> > Paul Nimz
> > '97 TR
> > '93 EG mtx
> >
> >
> >
> >
> > ----- Original Message ----- 
> > From: "Carl Prochilo" <gr8sho@prochilo.myserver.org>
> > To: "Paul Nimz" <pnimz@v8sho.com>
> > Cc: <shotimes@autox.team.net>
> > Sent: Thursday, June 17, 2004 8:08 AM
> > Subject: Re: [Shotimes] Oil blow-by?
> >
> >
> > > I guess I'm in the camp that doesn't understand
> > this.  Would you please
> > > elaborate why you do this?
> > > -- 
> > > Cheers,
> > > Carl Prochilo
> > > 92 Ultra Red Crimson
> > >
> > > On Thu, June 17, 2004 1:33 am, Paul Nimz said:
> > > > I plug my PCV input hoses.......
> > > >
> > > > Paul Nimz
> > > > '97 TR
> > > > '93 EG mtx
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Leigh Smith" <leighsm@comcast.net>
> > > > To: "Mark Mucher" <mmucher@bellsouth.net>;
> > "'Shotimes@Autox. Team. Net'"
> > > > <shotimes@autox.team.net>
> > > > Sent: Wednesday, June 16, 2004 5:59 PM
> > > > Subject: Re: [Shotimes] Oil blow-by?
> > > >
> > > >
> > > >> I'd certainly check all the things everyone
> > mentioned, but it is also
> > > >> possible the rings are just getting tired by
> > now. You didn't mention
> > > >> mileage, but I'll assume it's 100k or more by
> > now.
> > > >> Old solid lifter "musclecar" engines had a
> > serious problem with
> > blow-by,
> > > >> even when brand new and properly blue-printed,
> > because the pistons were
> > > >> forged and installed so "loose". They would
> > literally puff smoke from
> > > >> the
> > > >> valve cover fill cap if you opened it and
> > disconnected the PCV. The SHO
> > > >> is
> > > >> built MUCH tighter, but with those miles your
> > rings are still well
> > worn.
> > > > To
> > > >> check, pull the PCV hose, and vent hose, and
> > open the oil fill cap, and
> > > > see
> > > >> how much smoke or puffing you get. None would
> > be ideal. Put the PCV
> > hose
> > > >> back on. Make sure the hose itself pulls a
> > vacuum. Then hold your hand
> > > > over
> > > >> the cap opening and check to see if the system
> > can pull a vacuum thru
> > > >> the
> > > >> crankcase while the engine is running.
> > > >> Blue smoke that only appears at full throttle
> > means the same thing.
> > > >> A more sophisticated test would include a
> > leak-down tester.
> > > >> Race cars run vacuum hoses from the header
> > collectors to get big vacuum
> > > >> readings inside the crankcase, even at full
> > throttle.
> > > >> I remeber tests where that alone was worth
> > 20HP.
> > > >> Lee
> > > >> ----- Original Message -----
> > > >> From: "Mark Mucher" <mmucher@bellsouth.net>
> > > >> To: "'Shotimes@Autox. Team. Net'"
> > <shotimes@autox.team.net>
> > > >> Sent: Wednesday, June 16, 2004 8:58 AM
> > > >> Subject: [Shotimes] Oil blow-by?
> > > >>
> > > >>
> > > >> > I posted this on TechSHO but didn't get any
> > bites...
> > > >> >
> > > >> >
> > > >> > My "new" '90 has some damp oil spots on the
> > top of the engine
> > > >> >
> > > >> > One area is to the left of the filler cap and
> > another is towards the
> > > > front
> > > >> > of the throttle body on the intake joint.
> > > >> >
> > > >> > It kinda looks like the crankcase is not
> > venting properly.
> > > >> >
> > > >> > Any ideas?
> > > >> >
> > > >> > (pix available)
> > > >> >
> > > >> > Thanks,
> > > >> >
> > > >> > Mark
> > > >> >
> > > >> > ---
> > > >> > Mark's outgoing mail is certified Virus Free.
> > > >> > Checked by AVG anti-virus system
> > (http://www.grisoft.com).
> > > >> > Version: 6.0.706 / Virus Database: 462 -
> > Release Date: 6/14/2004
> > > >> >
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