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Guide: Renewing a gear shifter seal
How to replace leaking gear shifter seal.
Published by Jarmot
28-08-2018
Difficulty Level: 3

User Rated:
Difficulty Level: 2

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Guide: Renewing a gear shifter seal

My Grande Punto 2008 1,2 gear box looked like this:

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I thought that drive shaft seal was leaking but I was advised it probably was a gear shift seal leak. It actually was the case:

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I ordered a new seal from eBay (30 ). Replacing an old seal was about three hours work and it were pretty simple job. Only tools needed were 10 mm spanner, 13 mm socket, two flat screw drivers, a punch, a hammer and sealant glue.

Take battery terminals off (10 mm spanner).

Remove battery (13 mm socket),

Remove the battery tray (13 mm socket):

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Remove clutch slave cylinder (13 mm socket):

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Open ground cable nut (13 mm socket) and remove reverse light switch connector:

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Gear cables can be removed with one or two screwdrivers:

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Gear shifter is attached with five screws (13 mm socket):

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Gear shifter removed:

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Remove lock pin with a punch:

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Remove a seeger ring with a screw driver:

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Gear shifter disassembled:

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Remove old seal carefully with a screw driver and tap a new seal in place:

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Assembly in reverse order. Use sealant when attaching gear shifter to gear box:

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Renew gear oil.
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Old 28-08-2018   #1
Join Date: Apr 2018
Posts: 88
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Bhutan 
Cool Re: Guide: Renewing a gear shifter seal

It probably helps if gearbox is in Neutral during procedure.
Check a vent (plastic cap on top of the shifter casing) if it's clogged.

Consider using proper dirt wipers/scrapers (like in hydraulic actuator rods).
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There is a wide range of height in wipers (with same diameters, they can be "tall"), rotary seals are pretty much the same ("short"). It may help to scrape more dirt.
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Mind there are also different lips shapes available.
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Finally, consider adding some kind of rubber boot. Simple "plug and play"...
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Or modification (just an idea - not verified yet).
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Small things, big trouble. Pay attention while installing this 2 parts. If not done correctly, they can fall into the gearbox and cause serious damage.
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Last edited by GrandePunto PL; 28-08-2018 at 20:00. Reason: Damage warning. Pay attention to details.
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Old 02-09-2018   #2
Join Date: Apr 2018
Posts: 88
Thanks: 16
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Bhutan 
Exclamation Re: Guide: Renewing a gear shifter seal

Most important information is missing: rotary "oil" seal size (20x30x7).
It's a standard machinery/industrial part - you don't have to buy it from automotive suppliers.
And, it should not cost so much (30 Euros is a massive rip-off).

Why there's no editing possible? Or combining two posts (from same user) automatically?
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Last edited by GrandePunto PL; 02-09-2018 at 00:28. Reason: Stupid forum! No editing or joining two posts?
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