Club126UK

Fiat 126 Chat => Fiat 126 Mechanical Problem Solving => Topic started by: KAL SPL on May 21, 2011, 03:14:30 PM

Title: Gear stick rattling
Post by: KAL SPL on May 21, 2011, 03:14:30 PM
Have always had a very annoying tinny rattle coming from the base of the gearstick inside the center console/channel , pretty much filled it with grease and never made a difference , I finally got around to changing the entire shifter linkage out few days ago and the second 1 does exactly the same thing !
It only does it in 3rd and 4th , its got me stumped !

Theres a cone washer at the base of the shifter which is quite loose around the shaft but held down by the spring , assuming it could be that as it showns signs of wear on the shaft aswell but this could just be from the downward motion of selecting reverse.

Surely I cant be the only person to ever have this annoying noise ?
Title: Re: Gear stick rattling
Post by: Rusty's Uncle on May 21, 2011, 04:27:32 PM
The gear stick is spring loaded to get reverse but there is also an anti rattle spring that goes at the front of the gear lever box.
Title: Re: Gear stick rattling
Post by: KAL SPL on May 21, 2011, 04:58:28 PM
Both springs are intact and both units operate 100%.
Title: Re: Gear stick rattling
Post by: smallcox on May 21, 2011, 06:04:10 PM


Worn bush in lever control unit, you have to remove the linkage to change it ???
Title: Re: Gear stick rattling
Post by: Rusty's Uncle on May 21, 2011, 06:06:10 PM
Sounds like a tricky one. Is the flexible link at the back of the gear shift rod OK and do the two mounting bolts have the sprung washers fitted .
Title: Re: Gear stick rattling
Post by: KAL SPL on May 22, 2011, 07:22:56 AM
Bush looks fine , although it does have a crack 1 side its not letting metal touch metal.

(http://i182.photobucket.com/albums/x127/KAL_SPL/Cars/IMG_1556.jpg)
Title: Re: Gear stick rattling
Post by: Rusty's Uncle on May 22, 2011, 09:35:33 AM
That all looks pretty tidy but if that bush is cracked then I would say that it is on the way out & best to replace. There should also be a similar bush in the rear bulkhead where the rod passes through.
Title: Re: Gear stick rattling
Post by: smallcox on May 22, 2011, 11:02:06 AM

Hi,
 Once your bushes are in order have ago at adjusting the rear gear link, (Twist it) as you may find the rattle is the stick just touching the cars tunnel and as you rev the engine the linkage is aloud to go light and rattle. Goes it do it in all gears or in just one of them?

Smallcox
Title: Re: Gear stick rattling
Post by: KAL SPL on May 22, 2011, 12:27:10 PM
Even though the bus was cracked it was NOT loose , I couldnt pull it along the shaft at all so I think its still fine , given the other linkage has the same rattle its bloody odd , it does it in 3rd and 4th only , I only have to just touch the stick and it stops , I will try and get a video of it for you guys.

The bush on the rear is also perfectly in tact , that was my guess that it would be touching metal but its a long way off.

I can also leaver the stick a couple of mm off the tunnel and the rattle is still there.
Title: Re: Gear stick rattling
Post by: lilgreencar on May 23, 2011, 07:22:56 AM
I had a very similar rattle as you're having. In the end the problem with mine was an improperly assembled linkage snubber (the funny looking bit with the rubber sandwiched between the metal tabs that connects the gearshift linkage to the transmission):

http://bit.ly/luWCvP

Mine was assembled without the special bolts, bushings and spring washers. Make sure that the snubber is mounted with the correct bolts that have the collar on them, so that tightening the nut does not cause the snubber to bind to the connection at each end. The snubber should "float" at each end on the bolts with the spring "wave" washers sandwiched between the collar and the snubber keeping the snubber sprung and rattle free.

Once I corrected this on mine, the rattle went away completely...



Title: Re: Gear stick rattling
Post by: KAL SPL on May 23, 2011, 07:33:01 AM
Thanks mate I will check it out , I know 1 end has the right bolt bt Im unsure of the other end , I never really took much notice of that just made sure it was tight , could be where the problem is coming from.
Title: Re: Gear stick rattling
Post by: AlleyNiki on May 23, 2011, 11:31:25 AM
Mine produced a tedious squeaking some months ago, especially when the car would vibrate at slower speeds. I cured this problem by taking off the gearstick rubber boot and liberally spraying WD-40 in there! Also the surrounding main chassis had a large bend / dent in it which I had to lever out.  

Maybe your rattling is caused by the gearstick hitting the surrounding metal .. er tunnel as someone else described it?

Alastair
Title: Re: Gear stick rattling
Post by: KAL SPL on May 23, 2011, 01:50:13 PM
Pumped the whole section full of grease , trust me its not something obvious in there , been chasing it for years :(
Title: Re: Gear stick rattling
Post by: smallcox on May 23, 2011, 02:41:33 PM

OK so you been chasing it for years, just to check is the gearbox mount sound and tight? is the handbrake cables touching the box? are the springs fitted in the end off the axle shafts that bolt onto the rear hubs.

As this sounds like you have more vibration than normal and is transmitten towards the linkage :-
Title: Re: Gear stick rattling
Post by: KAL SPL on May 23, 2011, 04:06:08 PM
Its only a very small tinny rattle , I always assumed it was the shifter linkage and only recently had good reason to swap it out as its not a 5 second job to do ...

I wouldnt have bothered asking if anyone else has had the same issue if it wasnt for the fact the second inkage has the same noise which leads me to believe the vibration is emminating from elsewhere.

Dont get me wrong , I will strip the whole bloody car again to find it and fix it :p
Title: Re: Gear stick rattling
Post by: KAL SPL on May 27, 2011, 10:20:36 AM
I had a very similar rattle as you're having. In the end the problem with mine was an improperly assembled linkage snubber (the funny looking bit with the rubber sandwiched between the metal tabs that connects the gearshift linkage to the transmission):

http://bit.ly/luWCvP

Mine was assembled without the special bolts, bushings and spring washers. Make sure that the snubber is mounted with the correct bolts that have the collar on them, so that tightening the nut does not cause the snubber to bind to the connection at each end. The snubber should "float" at each end on the bolts with the spring "wave" washers sandwiched between the collar and the snubber keeping the snubber sprung and rattle free.

Once I corrected this on mine, the rattle went away completely...



Nailed it !!!
I stuck the car on my hoist today and stripped that linkage out , turns out 1 of the bolts was backwards to start with , also there was no wave washers there so the vibrations were coming right through.
Very happy to have 1 more problem ironed out :)

(http://i182.photobucket.com/albums/x127/KAL_SPL/Cars/IMG_0504.jpg)
Title: Re: Gear stick rattling
Post by: lilgreencar on May 27, 2011, 07:12:53 PM
Glad you were able to get it sorted!

You have a lift!?!?!? That looks like an awesome setup. I'm jealous...
Title: Re: Gear stick rattling
Post by: KAL SPL on May 28, 2011, 12:10:20 PM
Oh its bliss no more rattle !

The hoist/lift is quite handy to have just sitting in the corner of my shed yes :)
Title: Re: Gear stick rattling
Post by: 124cso on May 28, 2011, 12:56:34 PM
Pumped the whole section full of grease ,
Probably not a good idea to put too much grease in there. Remember that it is your main heater duct, so I hate to imagine the mess when you get some cold weather and that grease breaks down to solids and oil ?

But seriously, if that white bushing on the geralever breaks up, you will not be able to select gears. I hav ejust been thru that and had to turn up a bushing out of 1" round nylon bar.
Title: Re: Gear stick rattling
Post by: KAL SPL on May 28, 2011, 03:09:07 PM
Hahah when I say pumped I meant covered the entire mech to stop it rattling ...
Mine hasnt had a heater since day 1 anyway , the duct is blocked at the floor under the back seat.

If the bush collapses I have a spare , no stress :)
and Im quite resourceful  :P