steve m
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| posted on 22/8/14 at 10:10 AM |
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Ford Type 2 gearbox, gear lever shake
Hi all
I seem to of developed a gear lever shake, it appears in all gears, but a lot worse in fourth when at a steady RPM
Ive changed the plastic saddle, and although the gear change is now a lot smoother, the gear knob shake is worse
I can live with the problem, but just wondered "why"
regards
steve
Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at
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pekwah1
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| posted on 22/8/14 at 10:12 AM |
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something to do with the gearbox/engine mounts causing too much vibration?
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britishtrident
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| posted on 22/8/14 at 10:17 AM |
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Have you changed the gear knob, the weight (more correctly mass) of the knob and length of gear stick changes the natural frequency of the gear
lever vibration. That is why most tintop gear lever knobs are fairly heavy.
A knob with a rubber bush insert works best because the rubber between the outer part of the knob and gear lever gives in some inherent. damping.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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steve m
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| posted on 22/8/14 at 10:45 AM |
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Andy, I did suspect mounts, but as far as I can see/feel all appear to be doing there job, two on the engine, and one on the gear box
BT, the whole gear lever/knob assembly has been on the car for a few years, and not really been a problem,
Im out in the car in a while, might take a vid
steve
Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at
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pekwah1
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| posted on 22/8/14 at 03:51 PM |
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hit a bump and bent your prop shaft? 
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steve m
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| posted on 22/8/14 at 08:06 PM |
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don't think so M8, as theres no vibration, or noise, just a very vibrating gear stick,
Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at
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Xtreme Kermit
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| posted on 23/8/14 at 01:23 PM |
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Gearbox bearings on the way out?
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Sam_68
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| posted on 23/8/14 at 03:10 PM |
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quote:
Originally posted by britishtrident
Have you changed the gear knob, the weight (more correctly mass) of the knob and length of gear stick changes the natural frequency of the gear
lever vibration. That is why most tintop gear lever knobs are fairly heavy.
A knob with a rubber bush insert works best because the rubber between the outer part of the knob and gear lever gives in some inherent. damping.
This is a strong possibility; it may be just a natural frequency thing.
Consider yourself in good company: Lotus had the same problem with the original Elan, and solved it by using a rubber bush to connect the shaft of the
gearlever. I changed both my Elans back to a solid shaft with a (heavier) billet aluminium gearknob, because I didn't like the
'squidgyness' that the rubber bush introduced into the feel of the gearchange.
You can always experiment by taping additional weight to the gearlever shaft to see if it cures the vibe.
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ian.stewart
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| posted on 30/8/14 at 08:22 PM |
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Are you using a quaife type quickshift???? they all rattle, its because they use a rose/spherical joint as a pivot, if that's the case take the
lever apart and see if the joint has a small lube hole in the side, if so drill a hole thru the side of the housing level to where the grease point is
and fit a grease nipple, that way you can grease the joint and stop it rattling,-------------- Otherwise dismantle the lever and smear all the
spherical parts you can find with a heavy HMP grease, not moly, reassemble and it should cure your problem for a while.
Something different, Very different..............
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steve m
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| posted on 31/8/14 at 10:25 AM |
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thanks for the idea's
It is a quick shift, and I had to modify it a bit to fit, but as said its been on the car for 5 plus years and never caused a problem, until the whole
lot came off I my hand a few weeks ago
ive reassembled it, and now it shakes/vibrates quite badly
Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at
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Paul Turner
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| posted on 31/8/14 at 11:03 AM |
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quote:
Originally posted by steve m
thanks for the idea's
It is a quick shift, and I had to modify it a bit to fit, but as said its been on the car for 5 plus years and never caused a problem, until the whole
lot came off I my hand a few weeks ago
ive reassembled it, and now it shakes/vibrates quite badly
So after 5 years with no issues the lever came off in your hands and now it vibrates.
I would suggest that its been reassembled incorrectly or the fault that caused it to come off has not been sorted.
Based on the new and very important info its 100% a lever issue. Would be nice to get all the info in the original post.
[Edited on 31/8/14 by Paul Turner]
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