Alfa Romeo Owners Club of Australia Forum

Technical => 160 Series (90, 75, 164 Sedans) => Topic started by: Dishy on March 27, 2020, 06:59:29 PM

Title: Alfa 90 transaxle half shaft seals.
Post by: Dishy 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
Title: Re: Alfa 90 transaxle half shaft seals.
Post by: bonno 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
Title: Re: Alfa 90 transaxle half shaft seals.
Post by: bonno on March 27, 2020, 07:34:34 PM
Here is a magnified copy of the extract.
Title: Re: Alfa 90 transaxle half shaft seals.
Post by: vin sharp 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.
Title: Re: Alfa 90 transaxle half shaft seals.
Post by: 105gta on March 28, 2020, 07:56:40 AM
Hi Dishy, furthering on from Vin's 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 you've got it all apart.
Ben