[DMCForum] Upper half of engine OK
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[DMCForum] Upper half of engine OK



Has taken forever and a day, but upper half of engine is tight. Can
hose it down all you want with no effect on idle.

Only effect I find now is crank seal in timing case cover.

Am basically working my way down.

Idle is tantilizingly close. Dash tach not most accurate in the world,
but I'd estimate fluctuations at 50+ RPM. Thing is: it shouldn't
fluctuate at all. Absolutely nothing variable on the car EXCEPT
driver's foot on pedal. Everything else hard set with screws, just
like carbureted vehicle. Am not going to rest until DeLo idles as well
as Lincolns. *MUST* be possible...

Note that only thing I've removed is idle speed motor (which actually
had audacity to stick closed once. That's when I decided to throw
away). Lamda wasn't option on Renault's PRV to begin with. My fuel
distributor is physically different than yours. Makes no sense to keep
an O2 sensor in exhaust stream, or ECU behind seat, when they have
nothing to control. I do need a replacement Bosch plug wire and hope
to trade ECU for an old one (doesn't ANYBODY have one to get rid of?
Surely John Hervey can't be sucking up the whole supply.).

My CPR is also different. No vacuum chambers. They aren't there.
Period. Don't anyone try to talk to me about enrichment spikes etc
because I don't have anything to attach hoses to even if I wanted to.

Renault didn't use spark advance cut off solenoid either. I didn't
remove -- wasn't there to begin with. That's why my spark advance is
live all the time, taken uphill of throttle plates (just like a
carburetor).

Speaking of carburetors, my PRV *IS* CIS. I'm not the one in other
Group who carbureted the thing (but don't think the thought hasn't
crossed my mind). Actually, find this fuel injection quite tolerable,
which is something I never thought I'd hear myself say. Once unmetered
air removed from equation performs rather flawlessly. Did need
provision for fast idle, but note: this is not something I dreamed up
myself. Simply installed existing fast idle device from BMW (hardly an
upstart organization). May put me in minority of DeLo owners, but any
mechanic of other contemporary marques should instantly recognize what
it is.

Oh, I did remove my charcoal canister (PO had spliced into PCV line
with a plastic Tee). I don't like them and have removed on all my
cars. Former location is where I plan to hide vacuum canister for
cruise control.

Bill Robertson
#5939

>--- In DMCForum@xxxxxxxxxxxxxxx, "checksix3" <jetjock11@xxxx> wrote:
> ...Btw, if you're unable to achieve a stable manual idle the CIS 
> system won't have a chance, assuming you ever put it back on. You've 
> mucked with the car so I don't have a clue as to what you've got but 
> you have a small path to the induction system somewhere, one thats 
> gonna be highly sensitive to volatile solvents. How is your rocker 
> covers/timing cover vented? You said your car has a hose to the air 
> cleaner, where is that connected to? If it's to the breather, thats 
> the path. It's simply taking the long way around.



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