Replacing v-belt power steering pump from AQ205A

[loco]

Hi all,
As a background, I replaced my volvo AQ205A with a Repower Marine vortex lump, but brought the ancillaries over.

Yesterday, the steering suddenly became heavy. We stopped the boat, and the V belt had come off, with the pully loose, with loose bolts, and the pully having been pulled over one of the bolts. The pulley & pump was very hot. There was resistance in the pump as I turned it by hand, but didn't feel like it was siezed or anything. I stuck some washers on it, and put it all back together.
When it first cranked, it made a fairly unpleasant noise, but steering was fine, and we limped back to the harbour. We checked the engine again, and everything seemed back to normal. There was no heat or noise to indicate a failed bearing.

So, my thoughts: If the pully bolts had just worked loose, that would have caused it to wobble, and could explain the damage to the bolts, and the friction of the belt could have caused the high temperature. That said, the bearing could have jammed, then broken loose, and it might just be minutes before the thing fails catastrophically.

They say if there's any doubt, then there is no doubt, so it might be wise to get the part swapped out anyway. It could be as old as 1989. Thing is, it's ?500! Link to the keypart unit below...

Are there alternatives I can use? It's a v-belt model, and nothing too special. Can I use any pump, so long as I can make the bracket and hose threads fit?
Or, does anyone know where I can get a reconditioned unit like this, preferably from the UK?

As always, massive thanks in advance. Typical for a part to fail mid-summer, in high season!!

 

[Scott Danforth]

the power steering pump you show is a saginaw "can of ham" pump found in nearly every GM vehicle from 1960-s to today. the onlything in the world more ubiquitous is the Small Block Chevrolet that the pump was bolted to

the pump itself is the exact same pump and reservoir as found in any GM truck (pick a mid 80's when your at the parts store). the difference is the bracket, pulley for a short water pump and the relief setting. the relief port on the back is a small fitting you need to remove to pull the pump out of the reservoir.

that part is not a ?500 part, here it is a $30 part (or about ?20) when you cut out the 4 or 5 middlemen and buy just the pump itself as a reman (new is about $50). since your referencing the british pound, look under the hood of mid 80's jags, they used many GM parts, I also believe that Rolls use the saginaw pump. Triumph TR8's used the saginaw pump, so did many volvo cars, vauxhal, holden, etc.

however if your pulley was rubbing on the hardware, it would have heated up simply from friction.

 

[loco]

Many thanks, Scott. I've had a good look around, and can certainly see some models out there, but not much in the UK, at least not with a part number I can find. I've got some feelers out, so hopefully will find something.
I think I can find parts for it, so might be easier to rebuild. I notice that there don't actually appear to be bearings in there, so it suggests more that it was just a loose pulley that caused the whole issue.

How about the v-belt pulley itself? With the bolt holes damaged and torn, it's going to be a bit of a nightmare to repair, and will probably come out unbalanced. On the marine parts site, it says it's discontinued with no part number. Do you know if a car version would work? There is an offset in the pulley, as it goes over the hub so perhaps I need to measure dimensions and go from there?

cheers,

 

[loco]

No Title

Hi all,
OK, I spent a bit of time tonight on the engine to figure out exactly what went wrong. It seems the pump itself is fine. There's no movement where there shouldn't be, so it very much looks like it's a case of the pully working loose, and getting badly damaged in the process.
The bad news is, I've spent a couple of hours scouring the net, and can only find one example of the same pully, and it's not in much better shape than mine.

Any help figuring out the model number, or a workable alternative would be hugely appreciated! Photos of the offending pulley attached.