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Discussion Starter · #1 ·
Does anyone know if the transm

Does anyone know if the transmission fill hole services the Overdrive as well as the Transmission.
My manual says to fill the Transmission and the Overdrive unit, but it doesn't specify how you fill the Overdrive itself.
I am assuming that the transmission will feed the other unit.
 
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Discussion Starter · #2 ·
Weren't there 2 different

Weren't there 2 different type overdrive units used on the 250 sedans?

Regards, JRV
 
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Discussion Starter · #3 ·
Went thru my old 250 service

Went thru my old 250 service bullitens.....

the overdrive fills with the trans filler plug, on the English manufactured OD units such as used on 250GTE's it's also reccomended that the OD screen & magnetic plug be cleaned at regular intervals. Screen is accessible by removing the brass plug at the base of the unit.

HTH's

Regards, JRV
 
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Discussion Starter · #4 ·
My transmission is Laycock, wi

My transmission is Laycock, with the Lucas overdrive. It is a center shifter.
I can see the brass drain, now before I remove the drain, where will I find a gesket for it?
 
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Discussion Starter · #6 ·
There are two different types

There are two different types of Laycock De Normanville overdrive units that are used on Ferrari's. One is filled through the normal transmission fill plug at the left front of the transmission case, the other has its own large brass fill plug on the left rear of the tailhousing. If you drain the overdrive on the second type you MUST refill it through the separate fill plug as there no common oil sump between the transmission and overdrive unit.

Brian Brown
Patrick Ottis Company
 
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Discussion Starter · #7 ·
Hi Brian,

thanks for the co


Hi Brian,

thanks for the conscise explanation. Hope you hang around to help some of the vintage owners out.

Regards, JRV
 
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