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Author Topic: Jerky gear changes on manual  (Read 4093 times)

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Andy89

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Jerky gear changes on manual
« on: 30 March 2012, 21:31:33 »

Hi

Since I changed from automatic to manual, it has allways been jerky on the gearchanges, I have to work hard get a good gearchange.
Can it be the gearbox, or is it other parts?

Andy B

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Re: Jerky gear changes on manual
« Reply #1 on: 30 March 2012, 22:12:21 »

Hi

Since I changed from automatic to manual, it has allways been jerky on the gearchanges, I have to work hard get a good gearchange.
Can it be the gearbox, or is it other parts?

How long have been driving auto's? When I returned to a 3 pedal car after about 15 years I found it took a few weeks before the fluidity of gear changes returned.  :y
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Andy89

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Re: Jerky gear changes on manual
« Reply #2 on: 30 March 2012, 22:31:04 »

It has nothing to do with that, it's over half a year since the change.
I have another manual car as well, and I have borrowed cars  ;)

Andy B

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Re: Jerky gear changes on manual
« Reply #3 on: 30 March 2012, 22:32:25 »

It has nothing to do with that, it's over half a year since the change.
I have another manual car as well, and I have borrowed cars  ;)

Oh!  :y :y :y  ;D ;D
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Andy89

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Re: Jerky gear changes on manual
« Reply #4 on: 30 March 2012, 22:41:16 »

In other cars the gearchanges are easy
But in the omega it takes alot more work

I guess there some play in the driveshaft, gearbox, diff etc, but I don't know how much play is normal or how to know if somethings broken/worn

bigtow

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Re: Jerky gear changes on manual
« Reply #5 on: 31 March 2012, 00:28:05 »

mine has been converted to manual and the gear shift is not as smooth ( through the gate ) as my mfl 3.0 factory manual i was wondering the same thing maybe a bush or the linkage ?
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2001 MV6 3.2 manual been converted from 2.6 auto

Omegatoy

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Re: Jerky gear changes on manual
« Reply #6 on: 31 March 2012, 20:01:00 »

Um just a point to  note, bad DMF can cause this, as it bangs to full movement rather than smoothly taking up the drive :-X

HockeyDave55

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Re: Jerky gear changes on manual
« Reply #7 on: 31 March 2012, 21:49:53 »

I was thinking the flywheel and have been thinking of a solid flywheel conversion....
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doz

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Re: Jerky gear changes on manual
« Reply #8 on: 31 March 2012, 22:00:55 »

Check the rubber do'nuts on the prop shaft
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Kevin Wood

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Re: Jerky gear changes on manual
« Reply #9 on: 31 March 2012, 22:17:37 »

Yep, backlash anywhere in the transmission, engine and gearbox mounts, DMF, as said. A juddery clutch due to wear or contamination of the friction material perhaps. Difficult to diagnose further without experiencing it, though.
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Andy89

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Re: Jerky gear changes on manual
« Reply #10 on: 31 March 2012, 23:06:45 »

DMF= Dual mass flywheel?
I don't know the condition of it since I Bought it used, but i bought new clutch.
I'll check the donuts

If the bearing in the middle of the propshaft is bad, will that just noise or will it make symptoms like this?

Kevin Wood

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Re: Jerky gear changes on manual
« Reply #11 on: 31 March 2012, 23:11:21 »


If the bearing in the middle of the propshaft is bad, will that just noise or will it make symptoms like this?

It might well do, if it's no longer supporting the propshaft.
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Andy89

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Re: Jerky gear changes on manual
« Reply #12 on: 01 April 2012, 21:58:23 »

When i drive off and release the gas pedal it feels like something falls forwards and when i press the gas pedal again it feels like something falls backwards.
I'm guessing this it what makes it hard to change gear, what it can be?

Andy89

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Re: Jerky gear changes on manual
« Reply #13 on: 02 April 2012, 19:29:58 »

Maybe a poor explanation, but it feels like something is sort of loose

Omegatoy

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Re: Jerky gear changes on manual
« Reply #14 on: 02 April 2012, 19:43:50 »

classic dmf pointers!! the looseness is the two halves sliding round!
« Last Edit: 02 April 2012, 19:49:01 by Omegatoy »
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