Pump Motor Brushes - a cheap alternative?

This guru should clean the stator too..

 

If its an electric motor it can be rebuilt, what you want to use is a commutator lathe. It machines down the pads where the brushes contact the commutator to a fine finish, not much metal is removed. You can also use a regular lathe. No question if I had an F1 I would rebuild the motor if it failed.

 

The 355 pump is completely different. The alfa one you speak of is the same as the one used on the 360.
To be honest, it looks like a waste of time. You can buy the alfa pump brand new for around £200 sterling; it has many vehicle applications, and is a direct match for the overpriced Ferrari unit. It's not just the motors that go bang, the pump heads wear internally too, so for the sake of a couple of hundred pounds i'd always stick a new one on....

 

AWESOME!!!

Thanks for sharing this!

 

Yo Eddie,

Wouldn't this info be helpful for the guys retrofitting the 360 pumps to 355's?

 

you are right ernie, that's a very good point. However, i'd just replace it, they aren't expensive unless you want to have your pants pulled down by Ferrari. That pump is fitted to various European cars, and can be had brand new for a couple of hundred pounds or so.......

 

I must remember this if in the future I need a new pump.

Does any other car use the same F1 actuator as the 355?

 

Unfortunately, no other cars use exactly the type of F1 hydraulic system installed in 355F1s. This is the first F1 system used by Ferrari in their cars, but the system was not actually developed or produced by Ferrari, which is quite strange considering that there is a lot of "buzz" about implementing components developed and tested for Formula 1 (F1) cars... So here is the story I learned through my own research when I was trying to track the manufacturers of individual components of 355F1 hydraulic system. The F1 system was developed by a German company Hydraulic Ring GmbH (see: page 6 of the attached PDF), which was purchased by Hilite International (see: http://www.theengineer.co.uk/news/hydraulik-ring-sold-to-hilite/281179.article).

The company, Hilite, does not sell individual components neither to Ferrari parts dealers, nor wholesale distributors (due to their exclusive contract with Ferrari). For example, those particular solenoid valves (both proportional and "on-off" type) used in the 355F1 hydraulic system can not be sourced from anywhere else, but from Hilite... (but they dont sell them to anybody else, but to Ferrari).

The 355F1 hydraulic pump is very simple: it consists of a micro-hydraulic gear pump (made by Mazocchi Pumps) and a 12V DC brushed electric motor (made by VALEO). The pump head has a "ZK" configuration of ports (low pressure intake and high pressure outlet portds located on opposite sides of the pump head) with clockwise rotation direction and displacement of 0.169cc/rev. However, this micro-pump head has been produced in very limited quantities, specifically for Hydraulik Ring (for Ferrari) and is currently "absolete" (according to personal communication I receved from the General Manager of Marzocchi Pumps, USA). It is no possible to purchase this pump separately as a new part from anywhere. However, the hydraulic pump head rarely breaks down... (although, the were several cases that I know about). Most frequently, problems with the 355F1 hydraulic pump are due to it's electric motor.

The electric motor for the 355F1 hydraulic pump was originally produced by VALEO. However, VALEO has sold it's electric motor business to NIDEC (a Japanese company that has divisions in Europe and USA). The company does not sell these electric motors with particular shaft configuration required for coupling with the pump head shaft, because of an exclusive contract with Hydraulic Ring/Hilite/Ferrari. However, these new motors can be occasioinally found on eBay (search for: "Electric Motor 355F1 Pump").

Replacing the motor in 355F1 pump will prevent many problems from occuring. It is rather simple and does not require the disconnection of hydraulic lines; just uncrew and remove the F1 hydraulic unit with it's subframe, trun it upside-down, uncrew the two screws fixing the motor to the F1 pump/manifold, install the new motor, place the whole unit back into the car.

Also, it is important to replace the F1 pump relay (Ferrari part: 155437), because with the failing electric motor that draws more Amps, the electrical contacts in that relay may overheat and even weld together (read discussions in this thread: http://www.ferrarichat.com/forum/showthread.php?t=268458&highlight=clutch+sensor&page=1
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More great info.

Thanks Juri !

 

How about taking the 355 f1 pump motor to be rebuilt by an electric motor repair shop? I'm considering trying that first.