Aquadrive bearings

[ivisonm]

I have dismantled my aquadrive unit that bolts onto the prop shaft and would like to buy new bearings. A local vearing supplier has said that they cannot get them and I would have to go to the manufacturer.

Does anyone have any suggestions where I may get the bearings without going to the manufacturer as they will be a wee bit expensive...

Mark

 

[Tranona]

as they will be a wee bit expensive...

How do you know? Have you asked Halyard Marine? If a good bearing supplier can't supply them they may be something obscure. Why not find how much they are first before running around to find alternatives?

 

[ivisonm]

Re: aquadrive

Just taking the advice from the local bearing company but you are right. I'll try them next week when everyone is back at work.

Marky

 

[Bilgediver]

Just taking the advice from the local bearing company but you are right. I'll try them next week when everyone is back at work.

Marky

If these are constant velocity joints then you need to know which car they were made for....Used in the front transmiission ...

 

[SvenglishTommy]

Just taking the advice from the local bearing company but you are right. I'll try them next week when everyone is back at work.

Marky

I'd be really interested to hear how you get on with this Marky, I have one too and from all I've been told they're pretty much 'service free' - I often sit there looking at it saying to myself "I wonder if you're ok" - the Aquadrive that is

 

[ivisonm]

Re: Aquadrive

Sure will keep all in formed.

I have the thrust bearing apart but the seals got damaged when dismantling.

The rest of it is not in the best condition, but the bearings did look good. No cracks in the bearings or plastic cages but as I have the engine out, stern gear out I thought that it better to replace so its good for another 20 years.

Marky

 

[Deleted member 36384]

Halyard drives are guaranteed for 10 years which implies that they have a high level of reliability. Do you know how old yours is?

 

[30boat]

I once built a flexible coupling in the same lines as the Aquadrive .I ended up saving half the cost of one and it worked perfectly for the 7 years I owned the boat.The thrust bearing was a standard double row ball bearing designed for axial loads and was chosen from a catalogue.My point is that you can probably get one that fits the case even if a little bit of surgery work is needed.But maybe the OEM one is not all that dear anyway.

 

[ivisonm]

Re: Aquadrive

No idea of the age of the unit as the previous owner 'lost' the records. Its not in bad condition, just some surface rust from not being cleaned and painted.

Contacted Halyard Marine today and waiting for quote...

 

[vyv_cox]

When CV joints wear excessively they become noisy. BMC Minis knock like crazy on full lock, progressively worsening at lesser steering angles. Unless yours is noisy it would seem unnecessary to replace anything other than the grease and maybe the boots if they look cracked.

 

[30boat]

When CV joints wear excessively they become noisy. BMC Minis knock like crazy on full lock, progressively worsening at lesser steering angles. Unless yours is noisy it would seem unnecessary to replace anything other than the grease and maybe the boots if they look cracked.

When I had my "aquadrive" made I used clapped out (free) Mini CV joints.They never made funny noises because they were kept almost in a straight line where they usually don't wear much.

 

[vyv_cox]

When I had my "aquadrive" made I used clapped out (free) Mini CV joints.They never made funny noises because they were kept almost in a straight line where they usually don't wear much.

There's an interesting theory about this (thread drift). CVs need a certain amount of movement to circulate grease through the contacts between balls, raceways and cages. Aligning them perfectly straight results in no grease, poor lubrication of contacts and thus wear. So less wear occurs if there is some angularity.

Having said that, when I installed mine I left the engine exactly as it was, in good alignment. It's been in for 10 years now without noise, maintenance or problems.

 

[30boat]

There's an interesting theory about this (thread drift). CVs need a certain amount of movement to circulate grease through the contacts between balls, raceways and cages. Aligning them perfectly straight results in no grease, poor lubrication of contacts and thus wear. So less wear occurs if there is some angularity.

Having said that, when I installed mine I left the engine exactly as it was, in good alignment. It's been in for 10 years now without noise, maintenance or problems.

Same with my real one on my present boat.It's only a bit off but after 9 years there are no problems.