• Welcome to The Truck Stop! We see you haven't REGISTERED yet.

    Your truck knowledge is missing!
    • Registration is FREE , all we need is your birthday and email. (We don't share ANY data with ANYONE)
    • We have tons of knowledge here for your diesel truck!
    • Post your own topics and reply to existing threads to help others out!
    • NO ADS! The site is fully functional and ad free!
    CLICK HERE TO REGISTER!

    Problems registering? Click here to contact us!

    Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD!

DIY pop tester

I built one similar to the second one. That's the only way to test injectors that I'm aware of.
 
I have not built or used a homebuilt one, but used a commercialy built one. It works excactly the same way these do. I would feel comfortable building one by the writeups very good job by both of them. Just heed all warnings atomixed liquid is very dangerous.
 
Is it a big deal if I don't have them pop tested? What's the most common thing that could happen? I bought them from Ted Reminder as used/rebuilt - and they look brand new! If you guys are adament about me getting them tested, then I can work on the jeep. If there isn't too much of a concern, I'll install the used ones, and get my old ones pop tested and set aside.

(which as it turns out - my buddy chuck who's helping me hasn't done either project anyways - changing injectors or rebuilding a jeep's tranny - so it oughta be fun nonetheless).
 
The biggest thing with pop testin them is to see if they leak off and to make sure the are balanced ie pop at about the same psi. You dont have to do it but it is a good idea if they are used not that Ted would sell junk.
 
These are pretty straight-ahead designs that should be easy to build. I wonder though, if you shouldn't fit an additional ball valve and a gauge downstream of that. The point would be that you could build up the pressure using the porta-power, and then when it is over the usual pop pressure, you could crack the ball valve to pressurize the line and then you'd know exactly when it pops and it would be independent of the feed pressure in the porta-power.

It seems you'd get a much more accurate reading that way, but I'm just armchair quarterbacking.

Does anyone who has a commercial pop tester know for sure?

-Rob :)
 
Anubis said:
what did you use as a fuel pipe?
Click to expand...


It was an old injection line off of something, not a 6.5, I got it from a friend who had it laying around. A 6.2/6.5 mechanical line would have worked just as well, since I used an IP outlet fitting from an old DB2 6.2 pump welded into a pipe thread fitting.

If you had an old DS4 line and DS4 IP fittting, that would work just as well.
 
I have Kent Moore Diesel Fuel Injector Tester Pop Detroit GM 2
that I am planning to sell.
It is currently promised to a guy from the place. But if he decides he doesn't want it for whatever reason it will be available.
 
TurboTahoe said:
These are pretty straight-ahead designs that should be easy to build. I wonder though, if you shouldn't fit an additional ball valve and a gauge downstream of that. The point would be that you could build up the pressure using the porta-power, and then when it is over the usual pop pressure, you could crack the ball valve to pressurize the line and then you'd know exactly when it pops and it would be independent of the feed pressure in the porta-power.

It seems you'd get a much more accurate reading that way, but I'm just armchair quarterbacking.

Does anyone who has a commercial pop tester know for sure?

-Rob :)
Click to expand...

That is a very good idea.

My brother just built one like the second link. It worked well. I rebuilt a set with new nozzles once and did not test them, it ran great. Some pepole get carried away tring to ballance them all to the exact same pop. As long as you are in spec's/range then it will run great, but you do have to test them to know that.
 
It would be interesting to see how much the pop pressures vary after x amount of miles. If they stayed uniform then having them all the same should increase engine life. Probably have the same effect as balancing the engine.
 
TurboTahoe said:
These are pretty straight-ahead designs that should be easy to build. I wonder though, if you shouldn't fit an additional ball valve and a gauge downstream of that. The point would be that you could build up the pressure using the porta-power, and then when it is over the usual pop pressure, you could crack the ball valve to pressurize the line and then you'd know exactly when it pops and it would be independent of the feed pressure in the porta-power.

It seems you'd get a much more accurate reading that way, but I'm just armchair quarterbacking.

Does anyone who has a commercial pop tester know for sure?

-Rob :)
Click to expand...

The testers I've seen use a resettable high reading gauge
 
I found someone close by that'll test for 12 bucks an injector. I don't want to spend that, but that seems to be the more trustworthy approach. Heck...I might break down and build one - but I thought I'd see what everyone's views were. Thanks!
 
You must log in or register to reply here.
Back
Top