when i worked in Italy we had Punto 1.9 diesel as a company car. A coworker filled it up with RUG and drove highway for several miles, the car was runnig but slow, he got towed, they emptied the tank, filled with diesel and the car ran like new for several years!
Hello Claudio!!
Your Fiat would have used a CP1 Pump. Identical in design to the CP3, just much smaller. They are also very robust. Unfortunately, North America doesn't have a great supply of these to experiment with.
Here's a neat video:
http://www.youtube.com/watch?v=WQsBMPLYMDA
.
In comparison, here is the "Twin Cylinder" version of our Pump (used in the Touareg and Ford Trucks)
(Look at minute 2:40, Compare how the two different pumps actuate the Plungers)
http://www.youtube.com/watch?v=HIok47p8zCw
Punch out the housing and throw in a steel liner. Problem solved.
Last I knew, the 3.1 Retrofit seemed to be quite the project.
Sure thing, a steel liner (Cast Iron better) would help, but it is one down fall of the Pump.
Gofaster and I discussed this a while back, here is the link:
http://forums.tdiclub.com/showthread.php?p=3981287#post3981287
Right I know that but I am trying to point out in the end the Botch CP4.1 pump is a POS.
As a side note, I would absolutely love to get my hands on a failed CP4.1 to see what actually happens and figure out if maybe the pump can be modified to be stronger(ie steel sleeve).
Anybody have a failed HPFP they want to send my way? I'll pay you for shipping and time...
Hello turbocharged798,
I have collected a pile of failed pumps. Shipping would be a killer from Canada. Right now, there is one on E-Bay for $89, free shipping to you from Cali. Check it out!!
In all the Pumps I bought, all the Cams are only 48-52 Rockwell. Quite soft and not easily Re-Made. It is possible, but very expensive to retrofit.
For me, the proven CP3 pump is cheaper and easier to experiment with. Please put your experience and ideas into one of the original Pumps!!
All the Best!