Rear Wheel Lockup

E

Ed Price

Guest
Gord:

Is the lockup occurring while you back with clutch engaged,
YES!!!

after you press the clutch,
YES!!!!

or after you begin to apply the brakes?
DO NOT GET TIME TO GO NEAR THE BRAKES.


My suspition is that a detent ball is missing on the shift rods in the trans.,
letting the 1st gear rod wander and jam two gear for a second but then, why
would it not stay jamed when the car stops?
Need as glass-top trans so we can see in when its doing it. Even our own tranny
expert in Cal. has not herard of this one.


Well, Gord, you do seem to have eliminated the brakes as the culprit.

The trans gears are helical, not spur, gears.

http://www.gearlab.org/GearPics/illinois01.html
http://www.gearlab.org/GearPics/illinois03.html

This means that the teeth mesh at an angle from the axis of the gear rotation.
(Helical gears runs smoother and quieter than spur gears.) The result is a force
parallel to the gear rotation axis which tries to push the gear sideways along
the shaft. Two helical gears in mesh will be pushed sideways in opposite
directions. Whenever you use a helical gear, you have to constrain it's motion
along the shaft, typically by thrust bearings or taper roller bearings.

If you have left out a spacer or a detent, then the gear (or gear and shaft)
will slide axially under load. Remove the load, and there is no sideways force.
Reverse the load, and they slide the other way. Maybe something is sliding where
it shouldn't go.

Remember that the differential pinion is a spiral bevel gear (not really a
hypoid gear), and it also sees axial thrust (the most axial thrust of any Amphi
gear).

http://www.gearlab.org/GearPics/illinois15.html
http://www.gearlab.org/GearPics/illinois16.html

Finally, something weird might be going on in the differential carrier.


Ed
67 Rust Guppy
El Cajon




[Non-text portions of this message have been removed]
 
Thread starter Similar threads Forum Replies Date
peterboz Rear wheel hub General Amphicar Discussion 1
LSolheim Rear Wheel Play General Amphicar Discussion 6
G Rear wheel cylinder dimensions General Amphicar Discussion 6
R Rear Wheel Hub Wanted General Amphicar Discussion 2
T Rear Wheel Cylinders General Amphicar Discussion 0
L Rear Wheel Bearing Play General Amphicar Discussion 0
M rear wheel seals logic General Amphicar Discussion 2
M Rear wheel assy seals? General Amphicar Discussion 0
S Rear Wheel Lock General Amphicar Discussion 1
K Rear wheel Bearings General Amphicar Discussion 0
J Rear Wheel Bearing Seal Orientation General Amphicar Discussion 1
DougFromBaltimore Amphicar - Servicing Rear Brakes without removing hubs and tip for attaching springs General Amphicar Discussion 9
S Rear Amphicar Shocks w/Small Diameter Spring - Rear Spring Specs? General Amphicar Discussion 2
SNOWBIRD Rear quarter repairs. General Amphicar Discussion 7
Jon March Amphi rear driveshaft & axle detail - Youtube video General Amphicar Discussion 3
SNOWBIRD Rear Axle repairs General Amphicar Discussion 1
SNOWBIRD Rear Hub repairs General Amphicar Discussion 0
DougFromBaltimore Rear Bumper Plastic Strip - How to remove it? General Amphicar Discussion 4
D Rear axles General Amphicar Discussion 1
W Having trouble finding outer boots for my Amphicar with Eddie Dillard rear axles. General Amphicar Discussion 12
peterboz reflectors rear General Amphicar Discussion 6
Jon March Rear driveshaft & axle-assembly photo General Amphicar Discussion 0
Cameron in UK That short rear brake shoe. General Amphicar Discussion 27
Jon March rear hub torque: 75? 150? 250ftlb? General Amphicar Discussion 0
Jon March anyone have this rear hub tool? General Amphicar Discussion 5
mschlem Rear Driveshaft yokes General Amphicar Discussion 13
Kruser Rear seat room General Amphicar Discussion 6
LSolheim Rear Axle Nut General Amphicar Discussion 2
okey0 Rear Flex Brake Hose General Amphicar Discussion 0
mschlem Rear Bearings... General Amphicar Discussion 4
T Rear Bumper Molding General Amphicar Discussion 7
SNOWBIRD Rear Axles General Amphicar Discussion 0
M Rear axles General Amphicar Discussion 0
T Rear Deck Lid Fit? General Amphicar Discussion 12
T Rear Deck Lid Seal General Amphicar Discussion 4
R rear hub replacing tips/tricks General Amphicar Discussion 7
Akamphi Rear quarter panel photos General Amphicar Discussion 5
azpaul50 People on Rear Deck General Amphicar Discussion 3
A Rear Axle U Joints - Bilge Pump Kit General Amphicar Discussion 0
S Rear Axle U-Joint? General Amphicar Discussion 6
C HELPPPP...Looking for good rear window frames General Amphicar Discussion 1
J Rear axle cover replacements ? General Amphicar Discussion 14
J What is the right material to fill rear fenders ? General Amphicar Discussion 6
A Rear View Mirrors Are Back General Amphicar Discussion 3
A Rear View Mirrors Are Back! Ii General Amphicar Discussion 1
A Rear View Mirrors Are Back! General Amphicar Discussion 0
kdroy Amphicar Rear qtrs by Dave General Amphicar Discussion 3
J Rear brake cable mount on backing plate General Amphicar Discussion 1
A Amphicar Rear Axle U-joints Late Style General Amphicar Discussion 0
A Rear Axle U-joints Now On Ebay General Amphicar Discussion 6
Similar threads


















































Top