Shaft still leaks after rebuild Dyna Glas pump

waterdog

Member
Sep 30, 2007
19
Rochester, NY
I've replaced the shaft seal assembly numerous times, replaced O rings, even replaced the impeller. Yesterday along with a new shaft seal I even installed a new "rear seal plate" and no matter what I do I can't get the shaft leak to stop completely. It's better but still dripping. I don't have access to a runout gauge but the motor shaft isn't damaged and turns smoothly. The motor runs quite with no odd vibration. I'm really at my wits end and it's a real PITA to remove the pump and do this job over and over. Any help or ideas would be appreciated. --- Thank you!

The pump is a STA-RITE MPRA6E-147L
The motor is an after market B2982T (AOS-SPC-B2982T) - Pool Motor Square Flange 1 HP Full Rate Dual Speed w/ Digital Controller (B2982T). This motor is quiet and in its 5th season.
109977
 

waterdog

Member
Sep 30, 2007
19
Rochester, NY
No ideas on this one anyone? Do you think it would be worth taking it apart again and putting some RTV in the seal plate before I insert the shaft seal?
 

Bama Rambler

Mod Squad
TFP Expert
Bronze Supporter
LifeTime Supporter
Jun 22, 2009
23,489
SouthWest Alabama
Don't take any offence, because I'm just spit-balling.

Did you make sure you got the right part for that pump?
Are you are putting the ceramic half in the right way?
You're putting the carbon part in correctly?
Have you checked the carbon and ceramic faces for damage?
Did you clean the carbon and ceramic faces with alcohol after touching them?
Does the rubber collar on the ceramic piece fit into the seal plate tightly?

If you've done everything correctly then I'd try a little sealant to see if that helps.
 

waterdog

Member
Sep 30, 2007
19
Rochester, NY
Don't take any offence, because I'm just spit-balling.

Did you make sure you got the right part for that pump?
Are you are putting the ceramic half in the right way?
You're putting the carbon part in correctly?
Have you checked the carbon and ceramic faces for damage?
Did you clean the carbon and ceramic faces with alcohol after touching them?
Does the rubber collar on the ceramic piece fit into the seal plate tightly?

If you've done everything correctly then I'd try a little sealant to see if that helps.
No offense taken. I definitely have the right parts and they are installed in the correct orientation. What I did not do is wipe down the surfaces of the seals. I will try again with another new shaft seal along with RTV between the seal and seal plate. Thank you