new stainless streel shadt - how much?

[Burnham Bob]

I have a P bracket and cutless bearing. The bearing is shot and the yard tell me that maybe the shaft is worn but tye'll know when the replace the bearing. Maybe I'll get away with it, maybe not. Any idea how much a new shaft would be? The current one is 3/4" and I know it will need a tapered thread and key. Knowing roughly how much would help with the budget over the winter as I'm not getting the work done till April.

 

[pvb]

I'd budget around £150 for a 1 metre shaft, and say £175 for a 1.5 metre shaft.

 

[PCUK]

You can have it re-metaled for less than the price of new.

 

[vyv_cox]

I'd budget around £150 for a 1 metre shaft, and say £175 for a 1.5 metre shaft.

That's about right for a 1 inch shaft also, from a marine supplier such as T Norris or Lake Engineering. But go to a non marine engineering shop and it will be far cheaper, e.g. £60 in Bangor.

 

[pvb]

... e.g. £60 in Bangor.

Ah, but we have to add the import duty and VAT!

 

[vyv_cox]

Ah, but we have to add the import duty and VAT!

I can smuggle it in for you, for a fee

 

[colingh]

If you refer to PBO issue 532 of March 201,1 you will find an article about how to repair a damaged prop shaft for very little cost. The article shows how, when a seal cuts into the flanks of a sail-drive prop shaft to such an extent that water enters the gear box, there is no need to junk the shaft. Nor is there a need to spend a fortune on buying a new shaft. Metal-spraying and other techniques to replace the worn-away stainless steel are likewise expensive and not needed.

The article is about repairing a badly worn Volvo sail-drive prop shaft, but the technical content is equaly applicable to any shaft, inclding those whose flanks are worn away by a cutlass bearing.

This most economical method involves using Speedi-Sleeves, which are slid down over the shaft to where they cover the damage. This in turn means that the repaired shaft can be returned to the boat without any worries that it will fit. This is unlike having a new part made with all the risks of some detail being wrong.

The only 'precision tools' needed to repair a prop-shaft's worn flanks with Speedi-Sleeves are a hammer and a lump of wood with a hole in it that is the same size as the shaft being repaired. (The lump of wood is used to drive the tight fitting sleeve along the shaft to the required position if a bit of suitably sized steel pipe is not readily available.)

Do Speedi-Sleeves work, or are they such a 'cheap solution' to a worn shaft problem that they are a joke?

The answer is 'Yes, they perform very well'. After writing the article for PBO about using Speedi-Sleeves on my boat's prop shaft, a trip to Oslo and back was an adquate test that was passed with no problem.

I suspect that the very low cost of repairing shafts with bits of kit readily available from a bearing stockist is not widely publicised, as it limits the options of extracting the largest possible funds from a yotties piggy bank.

Colin.

 

[Ammonite]

If you refer to PBO issue 532 of March 201,1 you will find an article about how to repair a damaged prop shaft for very little cost. The article shows how, when a seal cuts into the flanks of a sail-drive prop shaft to such an extent that water enters the gear box, there is no need to junk the shaft. Nor is there a need to spend a fortune on buying a new shaft. Metal-spraying and other techniques to replace the worn-away stainless steel are likewise expensive and not needed.

The article is about repairing a badly worn Volvo sail-drive prop shaft, but the technical content is equaly applicable to any shaft, inclding those whose flanks are worn away by a cutlass bearing.

This most economical method involves using Speedi-Sleeves, which are slid down over the shaft to where they cover the damage. This in turn means that the repaired shaft can be returned to the boat without any worries that it will fit. This is unlike having a new part made with all the risks of some detail being wrong.

The only 'precision tools' needed to repair a prop-shaft's worn flanks with Speedi-Sleeves are a hammer and a lump of wood with a hole in it that is the same size as the shaft being repaired. (The lump of wood is used to drive the tight fitting sleeve along the shaft to the required position if a bit of suitably sized steel pipe is not readily available.)

Do Speedi-Sleeves work, or are they such a 'cheap solution' to a worn shaft problem that they are a joke?

The answer is 'Yes, they perform very well'. After writing the article for PBO about using Speedi-Sleeves on my boat's prop shaft, a trip to Oslo and back was an adquate test that was passed with no problem.

I suspect that the very low cost of repairing shafts with bits of kit readily available from a bearing stockist is not widely publicised, as it limits the options of extracting the largest possible funds from a yotties piggy bank.

Colin.

Speedi-sleeves work well where a shaft has been damaged by an oil seal but they are only about 10mm deep (at least the 25mm version I've used was). If the shaft has been worn by the p bracket along it's length then @ £20 - £30 a pop surely a new shaft would be cheaper?

 

[pvb]

Speedi-sleeves work well where a shaft has been damaged by an oil seal but they are only about 10mm deep (at least the 25mm version I've used was). If the shaft has been worn by the p bracket along it's length then @ £20 - £30 a pop surely a new shaft would be cheaper?

You're quite right, Speedi-Sleeves are no good for cutlass bearing wear.