Taco 006 - new cartridge in old pump impeller hitting housing

moots

Well I have discovered the cause of the noise from the 006:

Upon taking it apart (for the 4th time arghh), I discovered the housing where the impeller sits to recirc the water is scarred from the impeller. Not sure if it is from the new cartridge or old but by backing off the mounting bolts a couple turns on all four I immediately changed the noise to tolerable. I am afraid to unscrew any further for fear of the O ring blowing off and leaking. I have created a very small bit of space between the flange and the housing. I did notice when removing the original cartridge that the bolts were not that tight!

Instead of sounding like a small hammer drill it now is mostly light noise which I can change by retightening the screws to bring back the original unacceptable noise!

Has anyone run across this issue ? Seems like something is out of tolerance and I should probably replace the whole thing but going to see if it eventually grinds itself down maybe 1/64" and I am guessing the noise goes away. The pump part number is 006-BE4-1 and the new cartridge is 005-020RP.

That being said the pump is probably 20 years old lol....

thoughts ?

STEVEusaPA

With all the time you spent, you could've put a whole new one in and saved the aggravation.
Are you sure there is no debris in there?

moots

With all the time you spent, you could've put a whole new one in and saved the aggravation.

"Yeah but I live a long way from a supply house, there is no debris. Besides that would be cheating lol Also I don't think I can return a cartridge after it's been used.

Just curious if anyone else has run into this...

hot_rod

On a stainless or bronze body pump it may be worth a cartridge replacement. Iron body pumps can be cheaper than the cartridge.

HVACNUT

I believe the old 006 bodies were a little different and took a fatter O-ring gasket so its probably kissing the volute.

You can get a new stainless complete (Amazon Prime is great) and keep the new cartridge as a backup. Install full port ball valves above and below.

moots

HVACNUT:

Yeah I used the new O ring which might be a tiny bit slimmer but think I am going to leave it as is. It really is just a light buzz now, noticeable in the room. Thinking it should slowly improve perhaps, the casing on those things always is too hot to touch it seems.

HVACNUT

> @moots said:
> HVACNUT:
>
>Thinking it should slowly improve perhaps, the casing on those things always is too hot to touch it seems.

Too hot to hold maybe, not too hot to touch.
But your probably right, it should be able to straighten itself out.
What's the worst thing that could happen? Maybe over amp and burn out the new motor with the impellar rubbing? No biggie. It'll be fine.

Think car tire riding along the curb. Fast!

hot_rod

Excessive heat in a motor usually indicates an overload condition. An amp meter would show that.
You are rolling the dice, will it grind into submission before you fry the motor

Joe Mattiello

Hi Moots
Hope all is well besides having problems replacing a cartridge in your 006 pump. One of the greatest attributes of 006 is the replacement cartridge concept. I’m wondering if you have the correct cartridge, or if you’re using the correct O-ring? The model number located on the pump tag will enable you to correctly identify the pump model to order replacement cartridge; nomenclature is important.
Tech support at 401-942-8000 can help you. If your impeller is rubbing in the pump volute, it is probably the wrong cartridge assembly, or using the wrong O-ring. Taco includes a couple different size O-rings with every cartridge because of the engineering changes throughout the years. You should correctly match the one you’re replacing with one of the ones included in the kit, or you could end up with an impeller hit, even if it’s the correct cartridge.
I can assure you, the noise from impeller hitting was not engineered into the pump. If it is hitting, the impeller will wear in, because it is a noryl plastic rubbing against bronze housing, but why wait for that to happen. I’m sure if you call Taco tech support there will be someone there to help with your situation. Hopefully this was helpful, and thank you for your loyalty to Taco Brand.

Joe Mattiello

BTW, the heat you feel when you put your hand on the motor housing is the inefficiency in PSC motor. The new ECM technology motors run much cooler because they are so much more efficient. http://www.tacocomfort.com/product/the-006e3-ecm-circulator-three-settings-one-reputation/

moots

Hi Joe:

The pump part number is 006-BE4-1 and the new cartridge is 005-020RP.

I used the larger diameter O ring which was very similar to my old one and it seats nicely in the housing.

Guess my mistake was not buying a completely new pump so everything matched since there are so many years (20), for the pump.

Since I can't return the cartridge I am going to see how it behaves and I think it will be fine, it has a slight noise to it but very acceptable.

thanks,

Dave

Joe Mattiello

Call Tech support tomorrow after the holiday, and ask why the pump is making a noise. They may be able to diagnose the problem over the phone. Regardless, of how you ended up with a noise, you should not have to settle, and I will bless you receiving a new cartridge if it's the wrong cartridge.

Thanks for your loyalty to the brand. I know I'm speaking on Johnny White's (Owner) behalf when I say I would rather thank you for your commitment to Brand Taco, and give you another cartridge then see you unhappy. Let me know how you make out:)