[DMCForum] Re: CO2 E & F Series, Etc.

["cruznmd" <racuti1@xxxxxxxxxxxx>]

'Tis true. Emissions in Connecticut (when I lived there) were tested 
at idle AND at speed. They put my truck on a pair of huge slip-
cylinders (called a dynomometer I think) but I know they put the 
analyzer in the pipe and revved it and took the reading.


--- In DMCForum@xxxxxxxxxxxxxxx, "content22207" <brobertson@xxxx> 
wrote:
> Bad news Martin: I'm looking at a page from Volvo literature right
> now. CO2 is 2.0% on B27E and B28E, including Sweden & Australia. Is
> 1.7% on B27F through 1976, dropping to 1.0% thereafter and B28F. 
I'll
> get the page scanned later today an upload it.
> 
> Regarding advanced base ignition time for emissions: When I 
mentioned
> this last year, people jumped all over my case. Is one of the 
reasons
> I quit the Forum. Now you're saying the same thing! Go figure.
> Domestic auto manufacturers *DEFINITELY* 100% unequivocally 
inarguably
> (etc) did this in the late 1970's. I know because I have identical
> engines spanning three years if production. Every year base ignition
> time was scooted up a degree or two, with a corresponding drop in
> performance (screwed up overall ignition advance)
> 
> BTW: Not all emissions are tested at idle. I watched the state of
> Virginia do it to my little brother last year on a treadmill at 
speed
> for 20 minutes or so.
> 
> Volvo alternators are located where DeLo exhaust swings around to 
the
> muffler. I do believe Wilhelm specifically asked about "F Series"
> (Volvo) engines... Same comment Re: oil pans.
> 
> I never wondered about "why" the series 038 CPR, I just wanted to
> ensure it was proper for my block before spending $75 on another 
one 
> (remember: I asked you BEFORE I started buying my own factory
> literature). My spare 038 is currently in service on Louie's 
otherwise
> stock DeLo engine. I think he's become rather enamored of it. Wonder
> if I'll ever see it again (without popping HIS louvers)? If my
> carbureted swap works out OK, will be a moot point.
> 
> Urp?
> 
> Bill Robertson
> #5939
> 
> >--- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski <martin@xxxx> 
wrote:
> > >
> > > - Advanced base ignition time (with correspondingly lighter
> > > counterweight?)
> > 
> > 
> > Emissions are tested at idle.
> > 
> > >
> > >
> > > - Relocated alternator
> > 
> > No, thats where Renault put it.
> > 
> > >
> > > - Shallower oil pan
> > 
> > Nonsense - there are actually spacers on the oil pickup making 
the pan 
> > approx 1" deeper than the Renault ones.
> > 
> > >
> > >
> > > - Much richer fuel mixture (2% CO2)
> > 
> > No, the E was set up to 1.5% WE set up to 2% sometimes when the 
engine 
> > "likes" it. This is within tolerance. 2% co at idle does not 
constiture 
> > a "much richer" mixture. The mixture adjustment screw has very 
little 
> > effect higher in the rev range.
> > 
> > >
> > > - Series 038 CPR versus Series 066 -- closes much more slowly 
(~160
> > > degrees) and exerts slightly less counter pressure. Vacuum 
enrichment
> > > is *MUCH* simpler
> > 
> > And you never stopped to wonder WHY there are these differences.
> Believe 
> > me they didn't do it for the hell of it. Vacuum enrichment on the
> 038 is 
> > very slight - something like 0.2bar drop in control pressure - 
not even 
> > enough to read on a gas analyser at idle! The 066 drops control
> pressure 
> > by over 1 bar, and makes a big difference.
> > 
> > >
> > >
> > > You may have one of the Renault imports (Z7V) that apparently 
were
> > > being marketed out of Ohio in the late 80's. Differences from 
Volvo E
> > > series:
> > > - Aluminum fuel distributor with external balancing screws 
(don't mess
> > > with them)
> > 
> > Only on later ones.
> > 
> > >
> > > - Dampener between the CPR and the fuel distributor
> > 
> > That was a warrenty item, not on all engines.
> > 
> > > Z7V uses a one piece upper air assembly. Many more vacuum 
nipples &
> > > ports than Volvo, most of them capped off. CO2 screw access 
port is
> > > threaded and plugged with a washer base machine screw. 
> > 
> > That is actually there on the DeLorean engine, but the upper 
casting
> was 
> > not drilled out during assembly meangn you have to drill it out. 
The 
> > Volvos also have this screw
> > 
> > > No place to
> > > attach an idle microswitch. 
> > 
> > That's because it didn't use the idlespeed system!!!
> > 
> > Martin

---

Yahoo! Groups Links

• To visit your group on the web, go to:
  http://groups.yahoo.com/group/DMCForum/
   
• To unsubscribe from this group, send an email to:
  DMCForum-unsubscribe@xxxxxxxxxxxxxxx
   
• Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.