Overdrive overhaul 250 GTE

Even though the electrical solenoid worked, this 250 GTE overdrive would not engage at speed so we made the judgment call to remove the transmission from the car and send the overdrive to be inspected and repaired.

It turns out that the unit is totally worn out and nasty but luckily nothing is broken. Since this one is built under license of Laycock de Normanville by Bianchi, the odd sized rear bearing is $80 instead of $10 for the common sized bearing that fits the Laycock built units.

When John took the unit apart he found a pound of metal shavings trapped in the filter screen and recommended  disassembling the transmission because it appears that it was run without oil for a bunch of miles. The transmission shifted well and was quiet but it will have to come apart for thorough inspection and cleaning. More posts to follow when I get the transmission apart.

Bianchi Overdrive

Overdrive Ferrari