As I mentioned earlier my BN1 overdrive is going wonky on me. After years
of yeoman's service. I dropped out once on a long highway trip, and that
now has quickly become the norm.
I checked the relays (BN1 has two of them, Bless Donald and his little elves
hearts) the other night they are fine so it is time to take the tunnel off
I guess, have also checked the oil level and it is fine.
The O/d shifts in fine, and at first dropped out occasionally, now over the
course of a few weeks ( I take the car out for maybe 3-4 drives a week) that
has gone from occassionally to pretty much anytime throttle is applied or I
go up a hill, if I really work at it I can get it to stay engaged a while.
When it goes out sometimes it drops out completely sometimes it sort of half
in/half out vaccillating.
Anyway I read a good article about the hydraulic part of the O/D that talks
about weak non return valve springs being a likely fix for low pressure.
However neither the article http://www.ntahc.org/techtips/OVERDRIVE1.html
nor my factory workshop manual identifies this part. Can anybody help point
this part out and can it be removed, service, withought completely
dismanteling the O/D? That and any other thoughts on the problem are
welcome, still hoping it is electrical, but that hope is dwindling as I test
and diagnose.
Greg Lemon
54 BN1
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