Testing the injectors
#16
New or used if your gong to the trouble of setting them set them to 'new' spec..
95% percent of old injectors are not worth a 'rebuild' according to typ4. typ4 sells new sets of Delphi's matched to within 50 psi of another for under 3 bills with return line kit and viton o-rings. He's a good guy and I am satisfied with his product.
95% percent of old injectors are not worth a 'rebuild' according to typ4. typ4 sells new sets of Delphi's matched to within 50 psi of another for under 3 bills with return line kit and viton o-rings. He's a good guy and I am satisfied with his product.
That 3,000 psi gauge is in 100 psi increments so it's less accurate for =/- measurements under 100 psi.
Not horribly inaccurate, but since I'm not going over 2,000 psi, I'm not worried about it.
The gauge was only $14 and change so I can get another 3,000 psi gauge and add it with a T fitting and shut off valves so that I can choose 2,000 or 3,000 psi depending on the injector being tested.
If I can find one larger 2,500 psi gauge with 50, or even 25 psi increments, that would be best, so I'm still keeping my eye out.
Perhaps I can build an extra one and sell it on EBAY to recoup the cost of building mine!
#18
I understand where your coming from. With 1900 so close to 2000 I'd worry about the gauge getting ruined right off the get go. Yeah I hear a larger sized gauge with smaller increments is easier to work with also. Since your doing this to build remanufactured injectors I got to say,for $108 pensicola diesel will ship 8 remans to your door. IMHO thats probably the cheapest route but then you don't have a pop-tester when your done. nate
6.9 - 7.3 Ford Diesel Fuel Injector NON Powerstroke: eBay Motors (item 160437850774 end time Jun-02-10 21:22:31 PDT)
Oh yeah and don't forget 'safety is no accident'. Injecting diesel fuel into your skin has serious consequences and should be avoided.
6.9 - 7.3 Ford Diesel Fuel Injector NON Powerstroke: eBay Motors (item 160437850774 end time Jun-02-10 21:22:31 PDT)
Oh yeah and don't forget 'safety is no accident'. Injecting diesel fuel into your skin has serious consequences and should be avoided.
#19
Join Date: Mar 2009
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A gauge is most accurate in the middle of it's range ...
Therefore you really would want a 4000 PSI gauge for best results.
Do you have to have that ... No, But if you were to call a gauge manufacture and tell them you want to do 2000 lbs accurately, they will tell you that a 4000 lb gauge is what you want.
Are you going to find a 4000 psi gauge that has small increments, yes, but you'll likely need to sell your house for it!
The finer the resolution the bigger the dollars.
-Enjoy
fh : )_~
Therefore you really would want a 4000 PSI gauge for best results.
Do you have to have that ... No, But if you were to call a gauge manufacture and tell them you want to do 2000 lbs accurately, they will tell you that a 4000 lb gauge is what you want.
Are you going to find a 4000 psi gauge that has small increments, yes, but you'll likely need to sell your house for it!
The finer the resolution the bigger the dollars.
-Enjoy
fh : )_~
#20
Well so far I only have about $40 in parts for the Gauge (was on sale), the smallest 2 ton jack of decent quality I could find and the fittings.
I tore it apart to strip off the crappy new paint to powder-coat it and that in itself was a lot of work.
Now I see why they want to charge the big bucks!
The $179 was the cheapest bottle jack style injector pressure tester I have seen on line, and that is big bucks for me right now (and that was for one set up for Mercedes injectors).
Some were $300!
Perhaps $150 if it came out just that way I want it to, AKA pretty enough to sell!
It would be great to find a good quality dissembled, unpainted jack ready for powder and assembly!
Perhaps for the next one I'll just leave the stock (Fire-engine Red) paint on.
I still have to decide if I am going to braze the fitting onto the top of the jack (barrow the neighbors tanks), find someone to weld the cast iron fitting to the cast iron top for a reasonable price (more $$$ I don't have out the door), or just machine a new part out of either steel (Better quality that welding or brazing) or brass (a hell of a lot nicer to look at, easier to thread than steel and the best way to go).
There is not seem to be a lot of "Meat" on the top of the head to thread a HUGE reducer fitting onto it, but I'll check again.
I have an extensive set of pipe and standard taps that go up to one inch.
If I had access to a metal lathe and an appropriate sized chunk of Brass, it would already be made and would be in the baking process of being powder-coated as I type this.
Other than the gauge (still have to look into more pressure range), I have already purchased multiple sets of parts to build more than one tester.
I tore it apart to strip off the crappy new paint to powder-coat it and that in itself was a lot of work.
Now I see why they want to charge the big bucks!
The $179 was the cheapest bottle jack style injector pressure tester I have seen on line, and that is big bucks for me right now (and that was for one set up for Mercedes injectors).
Some were $300!
Perhaps $150 if it came out just that way I want it to, AKA pretty enough to sell!
It would be great to find a good quality dissembled, unpainted jack ready for powder and assembly!
Perhaps for the next one I'll just leave the stock (Fire-engine Red) paint on.
I still have to decide if I am going to braze the fitting onto the top of the jack (barrow the neighbors tanks), find someone to weld the cast iron fitting to the cast iron top for a reasonable price (more $$$ I don't have out the door), or just machine a new part out of either steel (Better quality that welding or brazing) or brass (a hell of a lot nicer to look at, easier to thread than steel and the best way to go).
There is not seem to be a lot of "Meat" on the top of the head to thread a HUGE reducer fitting onto it, but I'll check again.
I have an extensive set of pipe and standard taps that go up to one inch.
If I had access to a metal lathe and an appropriate sized chunk of Brass, it would already be made and would be in the baking process of being powder-coated as I type this.
Other than the gauge (still have to look into more pressure range), I have already purchased multiple sets of parts to build more than one tester.
#23
I didn't see anything about the other injector line adapters and the one pictured does not fit our IDI injectors.
It would also take up more space in my Garage than the bottle sized one I am making.
Purchasing that one would also take away all the fun of making one!
Also, my 1"-14 tap seems just right for threading the top, so I'm going to give that a try.
I just need a 15/16 drill bit and to find a bolt that size.
#24
The only reasonably priced 15/16 drill I could find was on line, so I decided to braze a pipe fitting on top.
They came out rather well (should have taken pictures before powder coating).
I also brazed the supply fitting on to the main body so it could hold the testing fluid cup without additional support.
They are all powder coated now except for one base I left assembled in the original red paint as cleaning the cast base was a TOTAL PAIN!
When the final parts come out of the oven later today, I'll assemble them, drill come mounting holes in the base, mount them to a board and get some pictures up.
I do need an additional timing fitting to make a line adapter for the second tester as well as another gauge.
I'll see if I can find either a 2500 psi or larger diameter 3000 psi gauge.
They came out rather well (should have taken pictures before powder coating).
I also brazed the supply fitting on to the main body so it could hold the testing fluid cup without additional support.
They are all powder coated now except for one base I left assembled in the original red paint as cleaning the cast base was a TOTAL PAIN!
When the final parts come out of the oven later today, I'll assemble them, drill come mounting holes in the base, mount them to a board and get some pictures up.
I do need an additional timing fitting to make a line adapter for the second tester as well as another gauge.
I'll see if I can find either a 2500 psi or larger diameter 3000 psi gauge.
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