BC847

Found this on Ebay ~ AG Precision M/N: NTM-400, http://www.fiptestbenches.com/inject...le-tester.html
(As found here ~ http://www.fiptestbenches.com).

I mounted it to a scrap piece of 2 x 12. It's a rough but substantial cast base. The big valve under the gauge is used to isolate the gauge during certain tests otherwise it's used as a snubber to smooth pulsations while the injector is popping. (Soda and smokes are for size reference).




The reservoir holds about a quart and has a 5 micron filter. The lever works against what looks a lot like a roller-lifter in the base.




This one has a standard 150mm gauge (I wanted a larger one for it's finer resolution). There's a glycerin filled version available for extra.




Here I'm playing with an old "stock" core. I can't remember who I got them from, but my intent was the cores. This one pops at 190BAR. Stock is 245 I believe.



As much as I'll use the thing, I feel it will serve my needs just fine.

I'm thinking I'll pull the 6x0.016"s in the truck and check them initially to see where they're at and for how much variance between each other . Then after picking a target POP pressure, set them all consistently to the same new figure.

We'll see . . . . .

RonA

They are a very handy tool. especially if you like your truck to run the way it should.

TLRMAN

Make yourself a piece of tube that has a 90 degree bend so you can put a cup under the injector and catch all your fluids.

Purplezr2

Jealous, I would like one.

bullfrog5.9

where do i get and how much

bullfrog5.9

nvm i was dumb and didnt see the add at the top of ur thread

Onemoparnut

Very nice!!! If you dont mind what does something like that cost?

Crossy's son

So how do you actually "set" the injector

And what is BAR a measurement of?? Resistance of the liquid being pushed through the injector?

jimbo486

To set the opening or "pop" pressure, you shim the spring that is above the nozzle inside the injector. That's how much pressure it takes to overcome spring tension and lift the needle off of it's seat within the nozzle.

Bar is just another measurement of pressure. Just as PSI is. 1 bar = 14.5 psi

92smokin blacky

that would be nice to have! I think you should start chargin a small fee for us 1st gen guys to send our injectors to you to have them pop tested! I know it'd be a lot cheaper than what my local diesel shop wants to do that.

And I hope that doesn't kill your grass...

BC847

Yeah, I may just bend a line to allow the injector to shine in a container. Thanks.

@ Crossy's son: What jimbo486 said. Plus, one can raise or lower the POP pressure by adjusting the thickness of the spring shim (washer).

RonA

There is also an adapter for doing 24v injectors available.i was fortunate enough to find someone getting out of the injector business and acquired several hundred 12v shims. i still have to make 24v shims on the lathe but once it's set up they go pretty fast and the length is pretty easy to control. On average .001 change in shim thickness is equal to just under 5 bar. My truck is pretty sensitive to pop off pressures so i check them whenever smoke levels just off idle go up. I imagine there is a sweet spot for the VE just like there is for the p-pump and VP. I have found that keeping them all within a 5 bar spread usually helps the idle smooth out.

BC847

Ron, is there a generally good compromise with raising or lowering the POP pressure. Any recommendations over/under stock and why?

Thanks,

RonA

Honestly, I've never messed with VE injectors. I always set 24v at 305. 12v stuff anywhere between 260 and 300 depending on size. Personally I've found 280 to work best for my 24V injectors. Mine are sleeved to use 12V springs though. On a p-pump they were recommending around 260 bar. Mine start getting smokey with light throttle when they drop down below 270. Going up higher than 280 didn't seem to help and makes the pump work a bit harder(in theory it would slightly retard timing too). I have had a couple of people ask me to set their 12v stuff up in the 300-310 range. They were running larger injectors like alot of the VE guys do. Their thinking was that it would give better atomization. I've never tried anything bigger than a 7 x .013 so i don't know if the extra pressure actually helps. I'm not sure how high the VE would be happy with because it does not put out alot of pressure to begin with and it might be harder on it to run the pressures much above stock.
Sorry, I'm not much help with VE stuff.

On a side note, the piston in my tester sticks if i let it sit for a long time. I don't use injector test fluid, just diesel. It helped mine to mix some 2 stroke oil in with the diesel( i have a gallon can i keep the fuel for the tester in). Just thought I'd mention that.

GLHS

That is a nifty setup BC and some good info from Ron.

I think POD's are 255 bar.

I thought 1 bar was 14.7 psi?