Rear axle overhaul: Status check

From the time my onboro Alfa was still running on the road, I noticed that the inside of the right-rear wheel was dirty with oil soiling. I thought there should be a problem with the oil seal of the rear axle.

I checked it again when I installed the overhauled rear brakes, and found that the areas around the right side rear axle were dirty with oil. I confirmed the oil seal needed to be replaced. Therefore, I removed the rear axle shafts and started the cleaning.

The oil soiling was really stubborn. It was not easy to clean up them completely.

The inside and outside of the splash shield, around the axle case and drum case … everything was very dirty …

I started from the cleaning of the rear axle hosing.

The oil seal didn’t look so bad condition at first glance. But probably there could be problems in the oil seal. (Or also in other parts?)

Anyway I would start from the replacement of the oil seal.

(My original blog was written on 20th Jun 2008)

Comments

Tip to repair rubber parts

I disassembled the rear axle before. There had been no progress on it because I started the repair of the fuel tank during my summer holiday. While painting the fuel tank , I repaired the torn rubber boot of the parking brake wire. I guessed it didn ’ t cost high because it was small rubber part. But I wanted to try the repair method I read on the magazine article before. This was the condition before the repair. The rubber was torn apart and separated almost. I used this self-adhesive type butyl tape. I pasted lots of small pieces of the butyl tape on the back side of the rubber boot. As time goes by , these tapes would melt and stick together. After this I applied plenty of adhesive “ Super X Black ” on the rubber boot. On the magazine of MOTO MAINTENANCE , I read the article that the motorcycle seat was repaired with this method. So , I wanted to try it. After drying 1 day , it became like this....

Clutch master cylinder overhaul #3

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Clutch master cylinder overhaul #2: tough match

I disassembled the removed clutch master cylinder. And I found that the piston was heavily rusted. I tried to hit it with a hummer , Pushed the piston using the vise clamp like this. However , the piston was heavily sticking by rust and it could not to be moved today. The brake master cylinder was replaced in the past , however , the clutch master cylinder was not. Therefore , the condition of the clutch master cylinder might be worse. Tentatively , I would spray the rust-penetration lubricant from both sides of the piston and try again in a few days. If it doesn ’ t work , I would give up the overhaul and order the new part. ( My original blog was written on 2nd July 2009 )

The day my "onboro ALFA" would revive

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