Author Topic: bowl stuffer installation..how to..pics/install (Read 2513 times)

DOZZR · « **on:** February 29, 2008, 08:27:26 AM »

Well I am going to tear into my pump for the first time to install a stuffer. The pump had a new impeller and wear ring installed last summer so hopefully it'll come apart fairly easy. I am thinking/hoping all I will need to do is basically drill/tap install the stuffer plate, re-check tollerances as it goes back together. Is there anything that I should be aware of before I get this thing tore down (special machining ect.) pictures of the mounting would be sweet.

Josh, this post has your name all over it, can you hear it calling your name lol

Josh@JBP · « **Reply #1 on:** February 29, 2008, 10:41:27 AM »

Quote from: DOZZR on February 29, 2008, 08:27:26 AM

Well I am going to tear into my pump for the first time to install a stuffer. The pump had a new impeller and wear ring installed last summer so hopefully it'll come apart fairly easy. I am thinking/hoping all I will need to do is basically drill/tap install the stuffer plate, re-check tollerances as it goes back together. Is there anything that I should be aware of before I get this thing tore down (special machining ect.) pictures of the mounting would be sweet.

Josh, this post has your name all over it, can you hear it calling your name lol

If you are going to install a stuffer plate it should be pretty straight forward. Take the bowl off, get some modeling clay (playdo) make acouple of balls the size of marbles put at least two on oposite sides of the impeller, put the bowl back on and torque it down(don't turn the shaft). Remove and measure the squished clay with a pair of calipers, they should measure about the same, if not it wouldn't be bad idea to put a few more on and check it again. I usually will put the same clearance on the back side of the impeller as I use on the front so take your measurment and subtract .025" -.035" and you know how thick to make your plate. Also its not a bad idea to drill an 1/8" hole in the bottom of the stuff to drain any water that will get trapped in there.

You can also get real fancy on your stuffer and machine it to fill in the void on the impeller, but thats a whole nother story.

AA/Paul · « **Reply #2 on:** February 29, 2008, 12:20:57 PM »

What's astuffer??? Similair to an inducer? Run both? stick a turkey in it and pick up 4 mph?
Stuffer same as loader?

AA/Paul · « **Reply #3 on:** February 29, 2008, 12:24:02 PM »

Is this how it works??

hotrod56cars · « **Reply #4 on:** February 29, 2008, 12:47:35 PM »

Quote from: AA/Paul on February 29, 2008, 12:20:57 PM

What's astuffer??? Similair to an inducer? Run both? stick a turkey in it and pick up 4 mph?
Stuffer same as loader?

A stuffer is basically a chunk of aluminum that mounts to the inside of the bowl on the impellor side, it fills a void. It's supposed to help decrease cavitation.

Josh@JBP · « **Reply #5 on:** February 29, 2008, 01:27:23 PM »

Found a pic of a simple stuffer, a ledge has been machined on this one to create an L shape mating surface(kinda like a shoulder on a wear ring), How ever I would typically machine the mating surface on the impeller also incase its a hair off center.

AA/Paul · « **Reply #6 on:** February 29, 2008, 01:49:32 PM »

Cool !! Thanx.
Would it flow more if it where cone shaped or is something else in front of it?

DOZZR · « **Reply #7 on:** February 29, 2008, 02:01:23 PM »

Here is the one I have, it looks like the mounting holes are different and champfered on the other side, hmmm, this one is 7-1/4 across 1/2 thick in the center and the taper is approx 5/16
with a 32nd on the front side (as shown in your pic.) My mounting holes are on a 2 in radius or 4 inch circumfrence, where yours is probably closer to 6-3/4 center

Josh@JBP · « **Reply #8 on:** February 29, 2008, 02:05:36 PM »

Quote from: AA/Paul on February 29, 2008, 01:49:32 PM

Cool !! Thanx.
Would it flow more if it where cone shaped or is something else in front of it?

I spent way too much time on this one, but somewhere buried amonst more aluminum it started out as an Aggressor cone stuffer. This one fits .025" everywhere

I think i had too much time on my hands.

Quote from: DOZZR on February 29, 2008, 02:01:23 PM

Here is the one I have, it looks like the mounting holes are different and champfered on the other side, hmmm, this one is 7-1/4 across 1/2 thick in the center and the taper is approx 5/16
with a 32nd on the front side (as shown in your pic.) My mounting holes are on a 2 in radius or 4 inch circumfrence, where yours is probably closer to 6-3/4 center

I've seen ppl do that before but be carfull and seal the bolts because they go right into the oil cavity, also make sure and get drill shavings out.

DOZZR · « **Reply #9 on:** February 29, 2008, 02:21:42 PM »

after seeing that one (agressor), is the one I have going to actually worth the time and effort for the gain it will produce?, and I think the smart thing also would be to tap and fill my existing holes, and re drill them the way you have it set up, it would probably be easier and safer and stronger (versus, fishing out the shavings, drilling and tapping, into oil resevoir)

Josh@JBP · « **Reply #10 on:** February 29, 2008, 02:48:56 PM »

Quote from: DOZZR on February 29, 2008, 02:21:42 PM

after seeing that one (agressor), is the one I have going to actually worth the time and effort for the gain it will produce?, and I think the smart thing also would be to tap and fill my existing holes, and re drill them the way you have it set up, it would probably be easier and safer and stronger (versus, fishing out the shavings, drilling and tapping, into oil resevoir)

Truthfully, a plate stuffer would work very well for you, I'm not quite sure if the one I built was worth the time or effort but it was fun. Heres what an aggressor one looks like from aggressor.

But there is a machined area in an aggressor bowl for it to sit in, it wouldn't bolt into a berkeley bowl, without some work

OC2Vegas · « **Reply #11 on:** February 29, 2008, 05:04:00 PM »

Quote from: Josh@JBP on February 29, 2008, 02:05:36 PM

Overkill or not, that is just purdy!

Josh@JBP · « **Reply #12 on:** February 29, 2008, 06:28:38 PM »

Quote from: OC2Vegas on February 29, 2008, 05:04:00 PM

Overkill or not, that is just purdy!

Thanks, I gotta modify it once more to fit in that bowl

Its just sittin in there, and slightly change the cone shape to fit the hi-helix.

speedymopars · « **Reply #13 on:** February 29, 2008, 10:01:02 PM »

What's the going rate to take a stock JC and make it work as well as it can (without trying to get that last .001%) ?

TIMINATOR · « **Reply #14 on:** March 01, 2008, 08:45:15 AM »

I have stuffer plates made up and ready to install for $35.00. Several different thicknesses and styles. TIMINATOR 623-877-8553

AA/Paul · « **Reply #15 on:** March 01, 2008, 09:10:42 AM »

Nice work josh. Those tapers take awhile.

Thanx Timinator.

speedymopars · « **Reply #16 on:** March 01, 2008, 12:00:35 PM »

Quote from: TIMINATOR on March 01, 2008, 08:45:15 AM

I have stuffer plates made up and ready to install for $35.00. Several different thicknesses and styles. TIMINATOR 623-877-8553

How are you supposed to know what one you need?

I have to take my berk apart in the next couple of weeks - installing a place divertor, and relubing everything + wear ring and anything else that needs / should be changed.

TIMINATOR · « **Reply #17 on:** March 01, 2008, 07:45:38 PM »

You call me, and give me your dimensions and we go from there. I can machine them any way you want. We also do custom welding, fabbing and pump work. TIMM 623-877-8553 we are in the west Phx,az area. We ship a lot of pumps in and out by greyhound bus, its the cheapest way.

speedymopars · « **Reply #18 on:** March 12, 2008, 03:19:38 PM »

I'm learning about jets now, that's a good thing :-)

It looks like I have .359 clearance between the bowl and the impeller (which is an aluminum A BTW) with an ID of 5.9 ish (it is hard to measure due to the bowl size and caliper configuration.

In looking how the two fit together, I don't see how the cone would help. It looks like this is just there to fill the void between the impeller and the bowl outlet, so it would make the bowl more efficient.

hotrod56cars · « **Reply #19 on:** March 12, 2008, 06:02:06 PM »

Quote from: speedymopars on March 12, 2008, 03:19:38 PM

... It looks like this is just there to fill the void between the impeller and the bowl outlet, so it would make the bowl more efficient.

Exactly.

Josh@JBP · « **Reply #20 on:** March 13, 2008, 11:32:03 AM »

Quote from: speedymopars on March 12, 2008, 03:19:38 PM

It looks like I have .359 clearance between the bowl and the impeller (which is an aluminum A BTW) with an ID of 5.9 ish (it is hard to measure due to the bowl size and caliper configuration.

Thats a big gap. You should however wait and measure that clearance again after everything else is rebuilt. If you use a shouldered wear ring alot may change.

With that much clearance the pumpshaft may have been cut to move the impeller forward, in an effort to tighten up front side clearance(sometimes the impeller hub is cut instead). Thats an old practice pump builders did b4 shouldered wear rings, and some still do. Often times they would also cut the register on the bowl to tighten up back side clearence (no stuffer needed).

speedymopars · « **Reply #21 on:** March 13, 2008, 08:23:06 PM »

Quote from: Josh@JBP on March 13, 2008, 11:32:03 AM

Thats a big gap. You should however wait and measure that clearance again after everything else is rebuilt. If you use a shouldered wear ring alot may change.

With that much clearance the pumpshaft may have been cut to move the impeller forward, in an effort to tighten up front side clearance(sometimes the impeller hub is cut instead). Thats an old practice pump builders did b4 shouldered wear rings, and some still do. Often times they would also cut the register on the bowl to tighten up back side clearence (no stuffer needed).

That was the other thing I was thinking of doing, cutting a bit off of the bowl - but I figured that would be more trouble than adding a stuffer. Any thoughts either way?

Josh@JBP · « **Reply #22 on:** March 14, 2008, 10:54:06 AM »

Quote from: speedymopars on March 13, 2008, 08:23:06 PM

That was the other thing I was thinking of doing, cutting a bit off of the bowl - but I figured that would be more trouble than adding a stuffer. Any thoughts either way?

Adding a stuffer is reversable, cutting the bowl is not. Just keep in mind future rebuilds, upgrades or mods.

DOZZR · « **Reply #23 on:** March 17, 2008, 11:00:44 AM »

Ok, my lathe was down at the shop and the boat was here at the house, so it took a few days to get it shaved down to the proper specs overall I ended up with about .038-.040. between the stuffer and the impeller Here are the progress pics.
First I tore it down, plugged the holes in the stuffer that originally fastened into the oil resevoir drilled and tapped the bowl for mounting it on the bowl housing,

Then I put some putty where the surfaces come together to check tollarances,

Next I re-installed the bowl, tightened it up, pulled it back apart, measured the thickness of the putty, when I got it right, I started re-assembly.

Got everything polished back up and re-set the ride plate @ 2* up and Wala.....all I need now is my motor

beerjet · « **Reply #24 on:** March 24, 2008, 09:32:57 PM »

Here's mine . I didnt do it so i cant tell you a single thing about it . $:-\$

-beerjet-