On 2/16/2010 10:26 PM, robert wrote:
I'm going to replace my universal joints in the steering colum.
Bob wrote me off list, but I cannot reply to his e-mail. So, here's the
message I tried to send to him. Bob: Info about the failure is appended
to the end.
John
On 2/17/2010 11:14 AM, robert wrote:
Hi John...
It's been a long time since we talked.
I hope all things are going well, and that you are finally retired.
The reason for writing, is that i'm a bit confused on the
measurements for the holes of the universal joint for the control
colum.
Do the new style universal joints need to be shortened and if so how
much. I've already ruined one. If I go with the meaurements at this
link, http://www.ercoupe.info/uploads/Main/drawings/a-254.jpg, will
it interfer with the rigging, as I believe that the rigging is
actually controlled by the stops on the control shaft and not by
stops in the system.
Any help you can give would be appreciated.
Cheers
Bob Pionteck
Bob:
You are correct. If you lengthen the shaft by putting a longer U-joint
in you move the elevator stops. I don't know for sure and have no way
to check, but it may be possible to compensate by adjusting the
turnbuckles.
IIRC, the MS u-joint is 3/4" overall (3/8" per end) longer than the
print. One end fits inside the yoke shaft and the extra length is not
an issue. I think the other end may interfere with the sprocket
bushings and hence will push the whole shaft aft 3/8", including the
stops, so this end should be cut.
Measure the distance of the holes in the old joint relative to the joint
centerline and duplicate that. the new holes should be drilled
undersized and reamed to fit with the shaft and sprocket with a Browne &
Sharpe #1 taper reamer.
John
Techie stuff:
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