Author Topic: Alfa 90 transaxle half shaft seals.  (Read 121 times)

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Dishy

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Alfa 90 transaxle half shaft seals.
« on: March 27, 2020, 06:59:29 PM »
Hello All,
       I have a leak at the passenger side output from my transaxle. I have removed the half shaft to try and fix the leak. It looks like there was no seal between the mounting flange and the diff casing so I will fix that with liquid gasket. But before I do that I assume there is an oil seal between the mounting flange and the shaft. Considering everything I have had to do to get to the half shaft I should also replace that oil seal just in case. I have attached a picture of the half shaft as it is at the moment. Can anybody recommend a way to get the shaft out of the flange without destroying everything?



Dishy

bonno

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Re: Alfa 90 transaxle half shaft seals.
« Reply #1 on: March 27, 2020, 07:25:40 PM »
Hi Dishy
You will need a press to disassemble the inner drive shaft from its components. Find attached applicable extract of workshop manual.
Cheers
bonno
now
83 Alfetta GTV
05 156 JTS manual
past
00 156 selespeed
72 1750 GTV

bonno

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Re: Alfa 90 transaxle half shaft seals.
« Reply #2 on: March 27, 2020, 07:34:34 PM »
Here is a magnified copy of the extract.
now
83 Alfetta GTV
05 156 JTS manual
past
00 156 selespeed
72 1750 GTV

vin sharp

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Re: Alfa 90 transaxle half shaft seals.
« Reply #3 on: March 27, 2020, 09:53:38 PM »
Dishy, yes there is a seal, common enough size you can get from a bearing supplier.
The only part from Bonno's instructions that applies to you is #12.

105gta

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Re: Alfa 90 transaxle half shaft seals.
« Reply #4 on: March 28, 2020, 07:56:40 AM »
Hi Dishy, furthering on from Vinís post, when pressing it apart, make sure you support the alloy flange as close to the centre as possible and as much of its diameter as possible. Ive had more than one customer looking for a replacement after snapping the reasonably brittle and thin mounting flange.
Also the bearing, while generally trouble free, is a standard size as well if you have any doubts about it while youíve got it all apart.
Ben
1967 Giulia Sprint GT Veloce (WIP)
1985 GTV6 (WIP)