Hi Terry,
Although the throttle switch may have had some problems, it would not
account for the OD staying engaged in reverse gear. The gear box 3-4
switch is "down stream " of the circuits & should release the solenoid
any time the GB is NOT in 3 or 4 gear. You may still have a problem. See
the attached schematic & description of the OD control circuits. This
document will be automatically removed on the "list" copy.
Dave Russell
BN2
Terry Blubaugh wrote:
> Hi All,
>
> Thanks to all the great listers who responded to my question re:
> reverse gear lockup. I must have received thirty emails offering
> suggestions. Some as far away as Germany and The Netherlands.
>
> As most of you suggested, the problem turned out to be an OD that was
> still engaged. However, the real culprit was the throttle relay
> shaft bearing/grommet that seats in the bulkhead, and holds the back
> end of the shaft where the control rod drops down. The bearing had
> torn out of the large grommet over the years, allowing the horizontal
> relay shaft to drop down, causing the OD throttle switch to become
> out of adjustment. Because of this, the OD would not release.
>
> Thanks for all your help. This is a great list.
>
> Terry Blubaugh
>
> BTW, I drove the Healey about 200 miles over the weekend, and there
> is no apparent damage to the OD.
[demime 1.01d removed an attachment of type image/jpeg which had a name of AH
OD MK1 UP Schematic.jpg]
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