Ferrari Mailing List: Re: Fuel Injection rebuild

[Hans E. Hansen (FList]

As I've said before, thanks Rick.

My son is contemplating a vintage "luxury" Ferrari, a Mondial.  He'll
need all the help he can get, so this info is invaluable, in the least!

Hans.
(who owns an very non-luxury model................)

On Sun, Dec 21, 2008 at 8:05 PM, Rick Lindsay <rolindsay [at] yahoo.com> wrote:
> Hello Friends,
>
> It's time to begin the rebuild of my Mondial QV's K-Jetronic fuel injection.  
> Stage one is behind me.  I've been studying and mending CIS fuel injection 
> for a long time, having owned BMWs and Porsches.  Now, I'm attacking the 
> messed-up system in this car.
>
> Here's a look under the sheets, http://www.aubard.us/Mondial/HPIM1312.JPG .  
> In this view you can see the injectors and fuel lines as well as the cold 
> start injector and various bits of plumbing.
>
> Here's a look at the cold start injector, 
> http://www.aubard.us/Mondial/HPIM1313.JPG . The bit between the injector and 
> the plenum is an air tap for the Auxiliary Air Valve, coming off the bottom 
> of the tap.  In this shot you can also see the Warm Up Regulator.  While not 
> really visible in this view, there is a modification.  The cracked and 
> decroded hose is part of the added-on lambda valve circuit.  This car never 
> had a lambda system, when originally delivered.  It was added when 
> federalized.  That whole circuit needs to go away.  There are two banjo 
> fittings on the WUR with an extended length banjo bolt.  I need to replace 
> the bolt with a shorter, correct model and remove the pseudo-lambda hose.
>
> In the picture you can also see that there is a thermal switch in the water 
> manifold, designed to switch vacuum.  There are no hoses connected to this 
> switch.  No clue what it originally did but it isn't in the parts manual!
>
> You can see most of the fuel distributor and the added-on lambda valve in 
> this picture, http://www.aubard.us/Mondial/HPIM1314.JPG next to the oil 
> filler cap.  And here, http://www.aubard.us/Mondial/HPIM1320.JPG and here, 
> http://www.aubard.us/Mondial/HPIM1321.JPG .  You can also see the non-return 
> valve in series with the (electrically) disconnected lambda valve.
>
> In this picture, http://www.aubard.us/Mondial/HPIM1315.JPG , you can see the 
> coolant expansion tank and the level sensor.  Also in this picture you can 
> see the Auxiliary Air Valve, mounted on the tank.  Here's a better view, 
> http://www.aubard.us/Mondial/HPIM1316.JPG .
>
> That's it folks.  Its documentation and cleaning time.  Following this will 
> be testing and repair, as needed, to put the FI system back the way Sr. Enzo 
> wanted it to be.
>
> Happy Sunday Evening,
>
> rick