For the non-US market, it would be worth pointing out in the installation manual, that an imperial sized Allen key is required - 3.5mm is nearly right but you can't torque it to the right amount and risk damage and it all getting stuck. Fortunately I had my Dad's old set
Does water enter the seal via the cutlass bearing and exit via the pipe shown on the video .... and does the other free end of the pipe have to be fixed above water line ? Or does water exit the free end ?
Does the Bellows get "tired" over time. I have just replaced my engine and didn't have a replacement bellow so I just used the standard method of 20 mm from relaxed bellows but the bellows somehow seems a bit more compressed. I'll replace the bellows when I haul out next time but for now I don't want to do that. So I am just wondering if its ok to use the 20 mm compression (1" shaft) on a 5 yr old bellows ?
When the boat is out of the water for winter storage, it is indeed possible to back off the compression to relieve pressure on the bellows. Before launching the boat again in the spring, be sure to use new set screws when securing the stainless steel rotor.
When you feel the setscrews push up against the shaft , how much tighter after that should you make them? What would happen if they are too loose or two tight?
You will want to torque the set screws to approximately 6-foot pounds of torque for shafts 3/4" to 1-3/8" and 8-foot pounds of torque for shafts 1-1/2" to 3-3/4". Not tightening the set screws enough could cause the stainless steel rotor to slide forward.
Hello please i need advice i have 3months old pss pro seal shaft seal i have noticed that 1 bellow looks like its getting dent i really don't know what happened maybe a wrong installation.please i need advice thank you.
We have used PSS at 90 mm shaft but it's really hard to compress the PSS with hand. We have just compress at 20mm instead 25mm Can you suggest us how Can we reach 25mm ( advised gap) easily
The 20mm of compression that you currently might be OK, so long as you don't have a lot of forward and aft movement of the engine. To assist in compressing the PSS to the full 25mm you can take a zinc anode and clamp it onto the propeller shaft forward of the stainless steel rotor of the PSS. Using that as leverage take a screwdriver to compress the PSS. Just be sure to protect the stainless steel rotor from damage with a block of wood or something similar.
I had to reverse two wood clamps, and set them against either side of the stainless rotor, and then against the gearbox coupling...then it was a simple case of extending them. Lucky I had them on board as voat needed to be back in the water that day...
No, Vaseline or any grease should not be used to lubricate any part of the PSS Shaft Seal. Use dish soap and water on the propeller shaft to help slide the PSS onto the shaft.
If it's leaking at rest, you will want to clean the two mating surfaces with 600 grit wet/dry sandpaper to clean out any debris causing the water leak. If your PSS leaks while underway, you will want to add more compression. About a 1/4" should do.
Thats not a very precise method of measuring a bent tape measure, surely a vernier depth gauge should be used, you are giving people the incorrect way to measure it, very poor for an instructional video.
For the non-US market, it would be worth pointing out in the installation manual, that an imperial sized Allen key is required - 3.5mm is nearly right but you can't torque it to the right amount and risk damage and it all getting stuck. Fortunately I had my Dad's old set
Nice and succinct presentation!
My pss started leaking after 800 hrs. Can i compress it another 1/4 inch while the boat is still in the water
Only able to get to them with one hand.
Does water enter the seal via the cutlass bearing and exit via the pipe shown on the video .... and does the other free end of the pipe have to be fixed above water line ? Or does water exit the free end ?
Does the Bellows get "tired" over time. I have just replaced my engine and didn't have a replacement bellow so I just used the standard method of 20 mm from relaxed bellows but the bellows somehow seems a bit more compressed.
I'll replace the bellows when I haul out next time but for now I don't want to do that. So I am just wondering if its ok to use the 20 mm compression (1" shaft) on a 5 yr old bellows ?
When the boat is out of the water over winter can I back off the compression to take pressure off the bellows
When the boat is out of the water for winter storage, it is indeed possible to back off the compression to relieve pressure on the bellows. Before launching the boat again in the spring, be sure to use new set screws when securing the stainless steel rotor.
@@PYIinc thank you very much that's a great help I will indeed put new set screws.
When you feel the setscrews push up against the shaft , how much tighter after that should you make them? What would happen if they are too loose or two tight?
You will want to torque the set screws to approximately 6-foot pounds of torque for shafts 3/4" to 1-3/8" and 8-foot pounds of torque for shafts 1-1/2" to 3-3/4". Not tightening the set screws enough could cause the stainless steel rotor to slide forward.
Do you put locktite on just top two set screws or all 4. And which Locktite
The Loctite goes on all four set screws. You can use Loctite Threadlocker Blue 242 or equivalent.
How many hours (or years in case of low utilization) are PSS shaft seals expected to last before thinking of replacing them?
We recommend replacing the bellows every 6 years with the PSS Maintenance Kit. This kit replaces the bellows, hose clamps, o-rings, and set screws.
Hello please i need advice i have 3months old pss pro seal shaft seal i have noticed that 1 bellow looks like its getting dent i really don't know what happened maybe a wrong installation.please i need advice thank you.
Please contact us at info@pyiinc.com with photos of your PSS Shaft Seal installation and closeups of the issue.
We have used PSS at 90 mm shaft but it's really hard to compress the PSS with hand. We have just compress at 20mm instead 25mm
Can you suggest us how Can we reach 25mm ( advised gap) easily
The 20mm of compression that you currently might be OK, so long as you don't have a lot of forward and aft movement of the engine.
To assist in compressing the PSS to the full 25mm you can take a zinc anode and clamp it onto the propeller shaft forward of the stainless steel rotor of the PSS. Using that as leverage take a screwdriver to compress the PSS. Just be sure to protect the stainless steel rotor from damage with a block of wood or something similar.
I had to reverse two wood clamps, and set them against either side of the stainless rotor, and then against the gearbox coupling...then it was a simple case of extending them. Lucky I had them on board as voat needed to be back in the water that day...
Would it be ok to use Vaseline or something on orings before sliding the coupling up shaft?
No, Vaseline or any grease should not be used to lubricate any part of the PSS Shaft Seal. Use dish soap and water on the propeller shaft to help slide the PSS onto the shaft.
How can i buy pss shaft seal 7/8 size
Mine is leaking after 5 years, what do I have to do?
If it's leaking at rest, you will want to clean the two mating surfaces with 600 grit wet/dry sandpaper to clean out any debris causing the water leak. If your PSS leaks while underway, you will want to add more compression. About a 1/4" should do.
ống 133mm-láp 76mm
Thats not a very precise method of measuring a bent tape measure, surely a vernier depth gauge should be used, you are giving people the incorrect way to measure it, very poor for an instructional video.