355F1 pump motor replacement R&D
Over the past several months, I have been developing cost-effective and practical solutions to 355 F1 pump motor, which has become almost "unobtanium". The original motors have been manufactured by Valeo electric motors division, which has been sold and resold again and again to other companies, and the production of this particular motor has been discontinued several years ago.
I have been reparing/refurbishing the 355F1 hydraulic power units for FerrParts over the past several years and now I ran out of all of my "new old stock" (NOS) 404.380 Valeo electric motors. However, the demand for this motor is only growing with time. Installation of 360F1 pump with Hill engineering adapter is a well established and tested option, which, however, is not cost-effective (from the cost of work involved to accomplish this); also, some Ferrari 355 owners want to keep their cars as original as possible. Therefore, I developed alternative motors for 355F1 hydraulic gear shifter unit, which is a direct plug-and-play type solution (see attached photos). The black colored motor is slightly longer than the stock motor, which requires a slight readjustment of the hydraulic unit position in the sub-frame (fixing screws should be loosened and the whole unit should be positioned about 0.5-1 inch higher to accommodate the electric motor, which installs from underneath the unit). In both motors, the motor shaft connects with the shaft of internal gear pump via a special spline connector (Oldham type) that is made from DelrinŽ (small dark brown-colored part in photos), which is provided with the motor and does not require any grease in the coupling.
The silver colored motor does not require any repositioning of hydraulic unit within the F1 mounting subframe, but because this motor is sold by Magneti Marelli it is significantly more expensive than the black-colored motor, which is a conventional OES 12V DC high torque motor that has the same RPM (3600) and draws about 4-5 Amps under load.
Installing this new motor takes only 15-20 minutes, which is certainly faster, much easier, and significantly cheaper, than removing the whole unit for installation of Hill Engineering adapter and 360F1 pump, which requires disconnecting hydraulic lines and removing the whole F1 unit out of the car, customization of sub-frame to accommodate the new 360F1 pump, and reconnecting and re-bleeding hydraulic lines. etc.
Before launching this product on eBay, I would like to test it's performance in several other cars. So, I am looking for "volunteers" who will want to test this motor in their cars. If any of you, DIY-type Ferrari 355F1 owners, are interested, then let me know and I will ship a unit for you to install in your car and test-drive it for a while.
Last edited by jgelovani; 03-12-2017 at 06:32 PM.