Given Magneti Marelli was part of Fiat up until 2018 they should be as good as OEM
Shop4Parts.
- Thread starter The Panda Nut
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Shop4Parts.
I may have missed something earlier in the thread but do tell, what are you attempting?
This is all on a new to us 500C that I got for my kids to learn to drive in.
Cambelt change (done) gearbox out (done) replacement of gearbox input bearing, seal and clutch, as the gearbox oil has been leaking out of the input seal and coated the clutch with a thin film of oil and bu##ered it. I'm just about to take the gearbox apart- wish me luck!
Cambelt change (done) gearbox out (done) replacement of gearbox input bearing, seal and clutch, as the gearbox oil has been leaking out of the input seal and coated the clutch with a thin film of oil and bu##ered it. I'm just about to take the gearbox apart- wish me luck!
Somewhere in the forum is a very good description/guide as to how to change ths input shaft bearing without completely dismantling the gearbox. Maybe someone can point you in the right direction to find it. It's a few years ago that it was posted.
Oh, here we go, I found it!
www.fiatforum.com
Read down the page for illustrations.
Input shaft bearing renewal | FIAT Punto (Mk2/2b)
Hello Half-way into renewing the clutch on my punto. Have transmission off, slight bit of play on the input shaft, able to rattle it side-to-side, when gearbox in neutral and rotating shaft by hand moves freely but it sounds a bit gritty. When driving was getting a rumbling noise, checked oil...
www.fiatforum.com
That is an excellent guide
The original bearing is a specialised
It has a Glass Fibre Reinforced Polyamide Cage with a reinforcing support ring on one side. It is an open bearing ignore the comments on rubber seals and removing one of them. It rubbish, Also avoid ebay sellers selling seal bearing ing with one side removed at inflated prices
The proper bearing is 6204.A.G15J30
If the bearing is still complete, it will pull off with a standard bearing puller
If you just have the inner race left on the shaft, there no room to get a puller in and it's down to knocking it off with a hammer and chisel
@rmjbn1 fitted a cheaper but good quality metal cage bearing without any problems
Missing from the guide is the fact the bearing isn't all the way onto the shaft, measure yours before pulling the old on off,
Also shows its impossible to get a standard bearing puller on if the bearing has already fallen apart
The original bearing is a specialised
It has a Glass Fibre Reinforced Polyamide Cage with a reinforcing support ring on one side. It is an open bearing ignore the comments on rubber seals and removing one of them. It rubbish, Also avoid ebay sellers selling seal bearing ing with one side removed at inflated prices
The proper bearing is 6204.A.G15J30
If the bearing is still complete, it will pull off with a standard bearing puller
If you just have the inner race left on the shaft, there no room to get a puller in and it's down to knocking it off with a hammer and chisel
@rmjbn1 fitted a cheaper but good quality metal cage bearing without any problems
Missing from the guide is the fact the bearing isn't all the way onto the shaft, measure yours before pulling the old on off,
Also shows its impossible to get a standard bearing puller on if the bearing has already fallen apart
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That's interesting. Any idea what determines the gap size?
Yes that thread above is very helpful, thats what has convinced me to have a go.
Great forum, lots of very helpful members, can't believe its taken me so long to post, considering I seem to be under an old fiat most weekends
Great forum, lots of very helpful members, can't believe its taken me so long to post, considering I seem to be under an old fiat most weekends
I also followed Mr. Wild's guide as linked above to do the input shaft bearing and seal on our 1.2 Panda.
In our case, the ball bearings were all still present, but the cage had completely gone.
I measured the gap to the cog behind the bearing at 25 thou and tapped the new bearing down to the same gap.
I used an SKF Explorer 6204 C3 bearing, same as Mr. Wild, and some others specified this.
I see some chat on that thread (since I did mine) suggesting an open type roller bearing instead - to avoid the cage disintegrating?
In our case, the ball bearings were all still present, but the cage had completely gone.
I measured the gap to the cog behind the bearing at 25 thou and tapped the new bearing down to the same gap.
I used an SKF Explorer 6204 C3 bearing, same as Mr. Wild, and some others specified this.
I see some chat on that thread (since I did mine) suggesting an open type roller bearing instead - to avoid the cage disintegrating?
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When they are professionally being rebuilt they are hammered on with a special tool to set the gap
I am not buying a tool just to do a couple of gearboxs
I don't think it's super critical as the preload is set via shims at the other end, but jamming it tight against the gear will effect oil flow and leave the bearing less supported
It's very easy to set with some feeler gauges
