Ferrari Mailing List: Re: Fixed it - and made it worse. Well, not really.

[Rick Lindsay (rolindsay]

Yea, the cleaning bit is happening.  I don't like working on dirty cars either. 
 i just couldn't resist a little constructive tinkering while I was cleaning.  
I try to clean from top to bottom so that  gravity doesn't put crap all over 
the cleaned bits.  That's why job one was to clean the engine room cover and to 
replace the insulation/heat barrier on that lid.  I'm now working on down - 
when I don't get distracted and start playing.

I need to test my cold start injector too.  It's 25 years old and who know its 
condition?!  Just talked with Rui this morning/afternoon only to learn that he 
replaced his injector because its spray pattern wasn't a pattern at all.  It 
was a linear squirt.  My car starts (cold) just fantastic.  One touch of the 
starter and its on task.  It does, however, need a good deal of extra air for 
starting when warm.  That says the charge is too rich.  Is my CSInjector 
leaking?  Quite possibly.  Is the thermotime switch stuck closed?  Dunno.  
Haven't gotten far enough to test that.  I will remove, clean and test the cold 
start injector - and while I'm at it, I'll clean and test the thermotime switch 
and associated circuit.

Next will come the warm up/control pressure regulator.  I know that it is 
plumbed wrong because that is where the 'mechanics' modified the system when 
they 'federalized' the car 25 years ago.  Those aftermarket lambda 
modifications, now dormant, are still there and will be removed as part of this 
service.  My Mondial QV is a Standard Specification car with a straight 
K-Jetronic FI.  A.K.A., "Lambda?  We don't need no stinkin' lambda."

Happy Saturday everyone!

rick


--- On Sat, 1/10/09, Bill Shaw <b.shaw [at] comcast.net> wrote:

> From: Bill Shaw <b.shaw [at] comcast.net>
> Subject: Re: [Ferrari] Fixed it - and made it worse.  Well, not really.
> To: ferrari [at] ferrarilist.com, "Rick Lindsay" <rolindsay [at] yahoo.com>
> Date: Saturday, January 10, 2009, 9:54 AM
> Nice work Rick. Keep at it,  you're getting there!  Mine
> has an issue 
> with the cold start valve that I have to go after before I
> put it back 
> in service in the spring.  At least you have good access to
> the front of 
> the motor,  I can't get my hand in there on my Cab. 
> 
> I would have attacked it with a brush and Simple Green
> first,  I hate 
> working on dirty cars :-) 
> 
> Bill
> 
> Rick Lindsay wrote:
> > Hey Gang,
> >
> > Today I finished the cleaning and testing of some of
> my Mondial QV's FI bits.  I then reassembled everything
> and fired the car up.  Started easily, idled okay if a
> little slow, but still has a miss.  Haven't gotten into
> the ignition yet.
> >
> > Here's what I discovered during the clean-up of
> the AAV.  This is the little bugger that adds warm-up air to
> increase the idle speed.  Here's before,
> http://www.aubard.us/Mondial/HPIM1316.JPG and after,
> http://www.aubard.us/Mondial/HPIM1350.JPG .  You can see
> that the AAV has been cleaned up and the nasty oil mess has
> been cleaned from the coolant reservoir.  I have NOT
> replaced the hose clamps nor have I policed the hose ends. 
> That will come.
> >
> > The AAV passes filtered and metered air around the
> butterfly in the throttle body.  Doing so is no different
> from cracking the throttle open a little - except that it
> more easily controlled by engine temperature this way.  
> >
> > Overall temperature controls the amount of extra air. 
> That heat may be conducted from the coolant tank to the AAV,
> or the heating coil in the AAV may heat the valve.  Either
> way, heat reduces the the extra air.  
> >
> > When I examined the AAV and tested it, it performed
> perfectly.  It just wasn't working.  I tested voltage at
> the connector.  It supplied 12 volts.  Upon examination of
> the connector I realized that one contact in the connector
> was deformed.  It wasn't making contact with the
> valve's electrical pin!  All air supply for idle
> increase was controlled by the coolant tank heat, not the
> electrical element.  I reformed the contact to its original
> shape and carefully connected it to the AAV, putting the
> system back in correct operation. 
> >
> > Next step is to clean and re-plumb the warm-up
> regulator.  More on that later as I have to buy some parts
> first.
> >
> > Here are some more pictures just for fun.
> >
> > Here's another look at the AAV reinstalled,
> http://www.aubard.us/Mondial/HPIM1353.JPG .  
> >
> > Here are a couple of looks at the throttle body,
> http://www.aubard.us/Mondial/HPIM1354.JPG and
> http://www.aubard.us/Mondial/HPIM1355.JPG .   Obviously,
> none of this has been cleaned.
> >
> > I've started cleaning the fuel distributor,
> http://www.aubard.us/Mondial/HPIM1349.JPG .
> >
> > Because the ignition is next in the queue after the
> FI, here are couple of pictures of the plug wire jackets -
> and their incorrect routing,
> http://www.aubard.us/Mondial/HPIM1356.JPG and
> http://www.aubard.us/Mondial/HPIM1357.JPG .  In the first
> image you can see where I wiped the cam cover with degreaser
> leaving a little peek at how nicely it will look once
> cleaned properly.
> >
> > And lastly, I realized just how badly the air box
> looked.  It was badly stained and the logo silk screen was
> mostly gone.  Here's how it looked,
> http://www.aubard.us/Mondial/HPIM1320.JPG and how it looks
> now, http://www.aubard.us/Mondial/HPIM1351.JPG and
> http://www.aubard.us/Mondial/HPIM1352.JPG after cleaning and
> painting.  And in this view you can see that I am waiting
> for new hose clamps on the air hose,
> http://www.aubard.us/Mondial/HPIM1348.JPG .  I'll see to
> that tomorrow.  I have seen a Mondial where the owner bought
> one of those vinyl Ferrari logos and applied it tastefully
> to the air box cover (replacing the silk screen).  Hummmmm?
> >
> > That's it gang.  A little progress.  Slow, careful
> progress.
> >
> > rick
> >