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modz

ZF 5speed lean to right even after detent replacement

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So I spent all afternoon replacing the 5th and reverse detent springs, replaced one at a time to ensure part and direction match for the replacements.

However the shifter still leans to the right - highly frustrating.

Any tips, tricks or thoughts?

Would the box being super dry of fluid make any difference?

TIA

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Can I ask why you thought changing components that affect the longitudinal location of a selector rod inside the gearbox would affect the transverse position of the external shift lever ?

 

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The two detent pins (5th and reverse) impact how easily the shift occurs into the gate and in turn position of the shifter.

http://www.m3forum.net/m3forum/showthread.php?t=385063

http://www.bimmerworld.com/Driveline-Shifter/Transmissions-Accessories/ZF-Transmission-Detent-Repair-Kit.html

 

Edited by modz

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It should sit directly above 4th, under 3rd. If it does, its in the right place.If it has increased resistance moving across to the reverse or 5th plane, there is nothing wrong with the detents.

 

If all that is fine, and it leans to the right, it's been dicked with - It's common it the shifter parts or trans are wrong for the car - was it factory manual or dodgily converted?

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9 hours ago, Allanw said:

It should sit directly above 4th, under 3rd. If it does, its in the right place.If it has increased resistance moving across to the reverse or 5th plane, there is nothing wrong with the detents.

 

If all that is fine, and it leans to the right, it's been dicked with - It's common it the shifter parts or trans are wrong for the car - was it factory manual or dodgily converted?

Thanks AllanW the box is not in the car but the shifter sits way over below 5th in its neutral position and wants to stay there while bench testing.

It is the correct 5speed box model for the car, had it come from the factory in manual and using all new OEM parts for the rest of the conversion, so it’s being done properly.

On the plus side, the shift gates are much improved since doing the detents.

Taking it in today to get looked at; want the conversion all done by end of Jan all going to plan.

I’ll update this post with info to help others out should they have the same issue.

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Wouldn't give much weight to either of those links: 

  • first one talks about changing linkage bushes then they have a problem ? 
  • second one clearly talks about longitudinal shifting as the primary benefit. 

Allan also points out the detents are designed to hold the gearbox in the selected gear and changing them only affects that function, i.e the longitudinal position.

As you have the gearbox out of the car checking the alignment of the external shift mechanism is quite easy.

You also mention it was very low on fluid you may wish to give it a decent flush and clean it out before refilling as the internal components may be gunged up because it does not sound like it has been maintained well. Once you have done that you should set about checking the alignment of the external comonents. 

Sloppy bushes on the shift mechanism can also give the impression of stiff shifting / selector fork / detent issues - bent, damaged and/or  twisted  shift mechanisms will give the sympthoms you are describing - also suggesting  a lack of maintenance and probable abuse. 

 

 

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Thanks, yeah box is out; I'm keen to do this correctly and get it checked / correct before it goes near going back in the car..

It's now at the Gearbox Factory for a proper inspection.

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