ChromeDome
Well-Known Member
I do not have any on ignore - sorry for missing your post.
Shaft Seal for Recommendation
- Thread starter Fluter
- Start date
Tranona
Well-Known Member
Well they do on Volvo saildrive propshafts which are lubricated in the same way and water pump shafts.
Tranona
Well-Known Member
So does my Radice, and the one before it, but I understand the rubber is different as reported earlier which makes it difficult to burp if you don't have a vent. Can't see anything different that could possibly lead to describing it as "far superior" when it is just a direct copy but with a different composition of rubber. However its a free market and AFAIK no patent protection so nothing to stop copies. Just don't see the point in buying a copy that has no benefits either functionally or financial.
Stemar
Well-Known Member
If the shaft is in good condition where it matters, I'd go for a Radice-type lip seal with a vent so it doesn't need to be burped.
On Jissel, the shaft was sufficiently worn that I wasn't sure I'd get a good seal, so I went with the (significantly more expensive) PSS. It just did what it was supposed to.
On Jissel, the shaft was sufficiently worn that I wasn't sure I'd get a good seal, so I went with the (significantly more expensive) PSS. It just did what it was supposed to.
rotrax
Well-Known Member
The Radice and Volvo were not available in the size I needed with a lube port and vent. It was fitted five years ago. The availability might be different now.
So, for my specific installation, the Orbitrade was the answer.
The vent, for me, would not have been a problem. I froze an old Volvo stuffing box to minus 30 degrees C and then bored, threaded and glued in a small threaded tube. To see if I could do it.
It would have been as good as a shop one........................................................
The lube port however had a possibility of damaging the thin lips while carrying out the boring.
So I bought a ready made one.
The attatched picture shows it, bought forward by eight inches with the exhaust GRP joining tube. The water stain left by the leaky old victorian engineering trad one can be seen where the stern narrows. I have been a pro mechanic for 60 years. I found it impossible to adjust - or indeed, even to reach!
Hence the decision to move it forward. This gave an unworn part of the shaft for the seal too, and an easier annual lube experience.
As for the life of an Orbitrade compared to the others, time will no doubt tell.
At the moment, it is, in the words of my dear but sadly late friend Simon "As dry as a Nuns crutch!"
So, for my specific installation, the Orbitrade was the answer.
The vent, for me, would not have been a problem. I froze an old Volvo stuffing box to minus 30 degrees C and then bored, threaded and glued in a small threaded tube. To see if I could do it.
It would have been as good as a shop one........................................................
The lube port however had a possibility of damaging the thin lips while carrying out the boring.
So I bought a ready made one.
The attatched picture shows it, bought forward by eight inches with the exhaust GRP joining tube. The water stain left by the leaky old victorian engineering trad one can be seen where the stern narrows. I have been a pro mechanic for 60 years. I found it impossible to adjust - or indeed, even to reach!
Hence the decision to move it forward. This gave an unworn part of the shaft for the seal too, and an easier annual lube experience.
As for the life of an Orbitrade compared to the others, time will no doubt tell.
At the moment, it is, in the words of my dear but sadly late friend Simon "As dry as a Nuns crutch!"
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