Register Login
Mr FIAT - Your #1 source for vintage car parts
Reply
 
Thread Tools
Old 3 Weeks Ago   #1
Join Date: Jul 2016
Posts: 16
Thanks: 1
Trader Rating: 0
Poland 
2nd gear issue and loose gearbox gear change mechanism

Hello again guys!

I am starting to suspect my B. hates me. Just as the season started my issues with putting in 2nd gear intensified. It started with reluctant engaging 2nd gear, but now it is almost impossible to engage it without the terrible sound, but even if that was successful the gear does fully sits in and pops out unless the gear stick is held in place.

So immediately I started to suspect to worn clutch, worn gears synchronizers, busted engine/gearbox mount and gear shifting mechanism. I could not confirm the mounts or reject other things. So I started to poke around and found that the shaft that goes into the gearbox and is responsible for gear change is pretty loose and moves about with clanking sound coming from inside the box. Took it to the garage and they also suspected this to be the problem. The garage would change it BUT they could not find replacement parts. At this points they could not guarantee it is the only cause, but recommended to look for the parts by myself and check with the FIAT dealership if they had them. No luck - they do not sell the parts in an assembly and I need to start ordering the parts piece by piece.

Here's a scheme of what goes where:



The shaft (1) moves around but also moves up and down. Up and down movement realizes the gear stick motion from left (1st, 2nd gears) through neutral center to right (5th and reverse). The rotation realizes the rear to front gear stick motion (1st or 2nd gear for instance). The shaft is pretty loose when I move it around with my hand (not while pressing up and down).

The (13) is a o-ring type of gasket. The (3) and (15) are what FIAT calls spacers and my bet is that the two spacers together with springs (14) & (2) are responsible for up and down motion.

By the look of it, the (11) could be a bushing and it is bolted to the gear box case, the shaft goes into it. So, my guess is that this where the shaft got loose - maybe the bushing and the corresponding shaft surface just worn out. However, judged by the fact that the problem with 2nd gear just got worse in 20 km of driving makes me feel uneasy about starting hunting for the parts, order them and start replacing based on a hunch.

Another thing is that at the end of the shaft there is a spline that most like goes into the (4) and it is tightened by bolt (9) and rotation around the shaft is taken away by the pin (10). This surprises me, I thought one could replace the whole thing by undoing the two bolts and pulling out the entire assembly of the shaft. If I were to trust the sizes on the pic, it would seem that the (4) is bigger than (11) and therefore it won't go through the hole that (11) fits into on the gearbox case.

Have anyone had experience with FIAT gearboxes? Can you advise if it is possible to remove the whole thing through the hole I mentioned? Am I on the right track here?

And... a movie I made to show you how does it look like (the broken rubber covers... ugh!)

https://drive.google.com/open?id=0B6...kE3dGdaMDd3YTg

Michal
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by MichalM; 3 Weeks Ago at 20:03. Reason: Issue with link to pic.
MichalM is offline Reply With Quote Quote 
Old 3 Weeks Ago   #2
Join Date: Jan 2013
Location: Newcastle-under-Lyme
Posts: 50
Thanks: 2
Trader Rating: 0
United Kingdom 
Re: 2nd gear issue and loose gearbox gear change mechanism

Sorry, that I can not help (its far beyond my skills). I see that someone on the Barchetta.pl site as offered some help. I'm hopefully in Warsaw in the next few weeks perhaps we could meet up. I am stopping in ul Krolewska which is very central. Brian


Quote Originally Posted by MichalM View Post
Hello again guys!

I am starting to suspect my B. hates me. Just as the season started my issues with putting in 2nd gear intensified. It started with reluctant engaging 2nd gear, but now it is almost impossible to engage it without the terrible sound, but even if that was successful the gear does fully sits in and pops out unless the gear stick is held in place.

So immediately I started to suspect to worn clutch, worn gears synchronizers, busted engine/gearbox mount and gear shifting mechanism. I could not confirm the mounts or reject other things. So I started to poke around and found that the shaft that goes into the gearbox and is responsible for gear change is pretty loose and moves about with clanking sound coming from inside the box. Took it to the garage and they also suspected this to be the problem. The garage would change it BUT they could not find replacement parts. At this points they could not guarantee it is the only cause, but recommended to look for the parts by myself and check with the FIAT dealership if they had them. No luck - they do not sell the parts in an assembly and I need to start ordering the parts piece by piece.

Here's a scheme of what goes where:



The shaft (1) moves around but also moves up and down. Up and down movement realizes the gear stick motion from left (1st, 2nd gears) through neutral center to right (5th and reverse). The rotation realizes the rear to front gear stick motion (1st or 2nd gear for instance). The shaft is pretty loose when I move it around with my hand (not while pressing up and down).

The (13) is a o-ring type of gasket. The (3) and (15) are what FIAT calls spacers and my bet is that the two spacers together with springs (14) & (2) are responsible for up and down motion.

By the look of it, the (11) could be a bushing and it is bolted to the gear box case, the shaft goes into it. So, my guess is that this where the shaft got loose - maybe the bushing and the corresponding shaft surface just worn out. However, judged by the fact that the problem with 2nd gear just got worse in 20 km of driving makes me feel uneasy about starting hunting for the parts, order them and start replacing based on a hunch.

Another thing is that at the end of the shaft there is a spline that most like goes into the (4) and it is tightened by bolt (9) and rotation around the shaft is taken away by the pin (10). This surprises me, I thought one could replace the whole thing by undoing the two bolts and pulling out the entire assembly of the shaft. If I were to trust the sizes on the pic, it would seem that the (4) is bigger than (11) and therefore it won't go through the hole that (11) fits into on the gearbox case.

Have anyone had experience with FIAT gearboxes? Can you advise if it is possible to remove the whole thing through the hole I mentioned? Am I on the right track here?

And... a movie I made to show you how does it look like (the broken rubber covers... ugh!)

https://drive.google.com/open?id=0B6...kE3dGdaMDd3YTg

Michal
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

brianpoole is offline Reply With Quote Quote 
Old 5 Days Ago   #3
Join Date: Jan 2009
Posts: 73
Thanks: 3
Trader Rating: 0
Germany 
Re: 2nd gear issue and loose gearbox gear change mechanism

Hi MichalM, sorry I can't help either, but did you manage to fix it? and if so how? - Stu
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

stu4art is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
(T) HELP Gear stick Loose can't change gear. WTID89 Punto (Mk2/2b) 4 19-05-2017 17:50
(T) Slightly sticky gear change mechanism... disgusted Multipla 11 02-05-2016 21:01
(G) 53 reg ulysse - mot adv. gear linkage worn - a bit loose on gear change should I buy? simonroscoe Ulysse 2 23-09-2015 16:05
(G) Hard to change to 2nd gear.... chumbamoo Sedici 1 18-02-2014 09:57
(T) Gear Change Mechanism roddude Uno 6 15-12-2013 13:06