quote:

Originally posted by Paul Drayton:
My teel pump 1p1825B is now leaking at the shaft.

Could it be a Teel 1P825B, rather than a 1P1825B?

quote:

Originally posted by Paul Drayton:
My teel pump 1p1825B is now leaking at the shaft. Apparently it is the lip seal that is gone.

Anybody else had this problem and/or know a good place to get a replacement. Or, even better, a quick, cheap, generic substitute?

That would make my miserly heart warm....

Hi Paul,

My pump, a 6NY86 bit the dust this weekend as well, also burned out a motor. That's what we get for hiring a light duty pump to do heavy duty work, I suppose. I'm going to order another pump, this time a heavy duty with more output and add another OC-50 to cut my run time in half.

On a different note, I noted you're doing some biodiesel, I've been doing some experimenting with it myself and found coming from the centrifuge I have consistent dry oil that titrates at 3.5 KOH.


Hope you are well,
Sam

Mac, yes I think you're right, it is a 1p825B. The only lip seal I can find is $31, which I think is a lot for an o-ring.

Sam, 3.5 with KOH is a winner - I'm having to use sulfuric acid to reduce the titration number. I'm converting my benz or maybe benz's (depending on how difficult the first one is) to 2 tank, after 60K miles on straight vege it's starting to complain and I'm feeling bad.

Ooops, better stay on topic or I might get spanked for bloating this 140 page thread.....

quote:

Originally posted by Paul Drayton:
Mac, yes I think you're right, it is a 1p825B. The only lip seal I can find is $31, which I think is a lot for an o-ring.....

The Teel 1P825B is no more AFAIK. Grainger was blowing out a bunch of Teel pumps recently for about the same price you have for that seal, so you might give them a call first .
It appears that the same pump is still available re-branded as a Dayton/Sherwood C1V.



If that's your pump then you'll find the part #s
in this PDF:
http://www.shertech.com/FileAttachments/Industrial/en-u...Rotary_Gear_1-06.pdf

I've been having good luck with my Dieselcraft OC-20, but i've also been having something a bit strange happening that I haven't read about.

When I go to clean the CF, the bowl is nice and scummed up, but, I'm also finding skum underneath the part that the spinner sits on top of, and down by the output holes. What's up with that? Is this normal or is something wrong with my OC-20? The rubber O ring is still in fine condition and the whole CF is assembled properly according to the directions.

Any ideas?

Wade

quote:

Originally posted by MandalaRose:
I'm also finding skum underneath the part that the spinner sits on top of, and down by the output holes.

Hi Wade,

If you are talking about the canals that lead to the jets on the bottom, that is normal. But, are you talking about a location on the outside of the rotor, after the oil passes through the jets?

Sam

I'm talking about inside the CF, underneath the piece the sits on top of the O-Ring. If that is normal, how much gunk is getting put back into the oil via the jets?

Wade

quote:

Originally posted by MandalaRose:
If that is normal, how much gunk is getting put back into the oil via the jets?

Certainly some gets through back to the oil, the larger size of the particle the better the ratio of cleaning per pass. I'll have a lot more about cleaning pretty soon, I'll start a new thread when I get the lab data back. But, for mass of particles, if you clean your CF after 4 hours, it will take another run of 8 hours to get the same amount removed in the first 4, then an additional 16 hours to remove another equal amount of goop, as both the ppm and the micron size is reducing.

Sam

Well, I'm running about 15 gallons at a time right now (my cleaning system is kinda small right now as I'm building a slightly bigger unit). How many times do I really need to run this thing to clean the oil out? From what I was reading, it seemed like running 15 gallons for 3 hrs would more than do what I need it to do, but it sounds that you are saying that I should run it for a period of time, then run it again after cleaning the CF, and so on - and so forth.

I'm starting to worry that maybe I should go the simple-centrifuge route instead.

Wade

quote:

....... how much gunk is getting put back into the oil via the jets?

Some, I'd guess. However, I don't really see it as an issue.
The oil doesn't get cleaned 100% at each pass, in fact it doesn't get cleaned 100% at all, however many passes you make.
Part of anything that's in the oil when it leaves the CF is removed the next time around in a repeating cycle for as long as you run it.
Any gunk that gets returned to the drum from outside the rotor eventually passes back through the CF again.
If it bothers you, then why not use the cleanliness of the underside of the rotor as a guide for when to stop centrifuging.

4 passes is the point where the amount removed drops off quickly. For 15 gallons, that is ~1 hour. To run beyond that, it removes smaller particles. It is quicker and more cost effective after that point to use a 1 micron absolute filter if you want finer removal.

The simpleCF is probably not going to be faster since its the same G force, although there still has been no testing of that.

1 hour. Wow, I guess i'm doing overkill. Oh well. Could be worse I suppose.

As far as the simple Cf system, isn't that a 1 pass process? I'm not really worried about faster, i'm just thinking about the best particle removal overall.

Wade

quote:

Originally posted by MandalaRose:As far as the simple Cf system, isn't that a 1 pass process?

As long as you accept that 100% purity isn't possible then yes, you adjust the rate of flow to achieve your requirements in one pass.

CAn anybody report back on how their power steering pumps are holding up? Model car they came from etc.

I'll be making a scrap yard trip soon....

My power steering pump has held up quite well so far. I paid $21 for it. I can't remember what it came from. I'll look tonight and see if I can find the receipt. I've got about 25-30 hrs of run time on my PS Pump. At the price of used PS Pumps, I'll probably continue using them. Unless I get a really really good deal on a gear pump. Someone gave me an 8gpm gear pump. Too bad it's too much flow for the OC20 or i'd use that.

Wade

I have been using a 1987 acura integra pump I got for $27 for over a year without issues. I have had to rebuild it a couple of times when a huge moth gets sucked up in it. I broke a rotor one time when I was not attending the CF, the pressure got too high. The trick I have found is to make sure it's at >120 degrees before turning it on.

Thanks Mandala and Ben

Mandala - did you get it new for that price, or from a scrap yard?

Ben, your PS pump is a gear pump right?

My Teel has bit the dust early, I think, because I didn't have a mandrel on it t5 prevent the pulling on the spindle. For now I have red-nekked it by putting a o-ring in the gap between the frame and the seal. It's not leaking anymore, but I don't see it lasting long...

Yes, gear pump. Sunwizard recommended this pump many pages back. Running with 1/3hp.

quote:

Mandala - did you get it new for that price, or from a scrap yard?

I got mine from a scrapyard. I just told them I was looking for a pump of a specific size and told them I wanted to look at their inventory and pick out what I wanted. They were cool with that.

Wade

Any leads on where to get the O-Ring for the DieselCraft? Seems like a common ORing size. Mine is fine for now but you know it will break half-way through a session ruining my day.