Aron Posted May 13, 2022 Share Posted May 13, 2022 So While I'm Waiting For My Clutch I Think I've Narrowed Down My Cold Starting Issue To A Leaking Injector. Is There A Way To Test These Injectors Without The Machine? I've Looked Around Everywhere And Cant Find One. Link to comment Share on other sites More sharing options...
Gary Lewis Posted May 13, 2022 Share Posted May 13, 2022 It wouldn't be easy to test an injector on your own. The biggest issue is getting fuel to it, and the connection is via the fuel rail that is rigid. So you'd essentially need another fuel rail and then cut off one of the connectors to use. And then if you got fuel to it you'd have to have roughly the right pressure as too little pressure and it might not leak, and too much and it may leak even if it is good. I think I'd buy a new injector. Link to comment Share on other sites More sharing options...
mat in tn Posted May 13, 2022 Share Posted May 13, 2022 It wouldn't be easy to test an injector on your own. The biggest issue is getting fuel to it, and the connection is via the fuel rail that is rigid. So you'd essentially need another fuel rail and then cut off one of the connectors to use. And then if you got fuel to it you'd have to have roughly the right pressure as too little pressure and it might not leak, and too much and it may leak even if it is good. I think I'd buy a new injector. it's not really practical to try to clean and test without a good setup and correct pressure supply if you are only doing one engine every few years. and if the tester showed a bad injector(s) then you'd be spending on the injectors too. I do a lot and replacing the injectors is common Link to comment Share on other sites More sharing options...
Aron Posted May 13, 2022 Author Share Posted May 13, 2022 It wouldn't be easy to test an injector on your own. The biggest issue is getting fuel to it, and the connection is via the fuel rail that is rigid. So you'd essentially need another fuel rail and then cut off one of the connectors to use. And then if you got fuel to it you'd have to have roughly the right pressure as too little pressure and it might not leak, and too much and it may leak even if it is good. I think I'd buy a new injector. Well The Problem Is That I Don't Know Which Diesel Injector It Is. Link to comment Share on other sites More sharing options...
grumpin Posted May 13, 2022 Share Posted May 13, 2022 Well The Problem Is That I Don't Know Which Diesel Injector It Is. I would think you could find the bad injector with an infrared thermometer on the exhaust manifold. Link to comment Share on other sites More sharing options...
Aron Posted May 13, 2022 Author Share Posted May 13, 2022 I would think you could find the bad injector with an infrared thermometer on the exhaust manifold. Well im trying to find a prime leak and I belive it is leaking injector, I just don't know which one(s) it is and that's what I am trying to find Link to comment Share on other sites More sharing options...
grumpin Posted May 14, 2022 Share Posted May 14, 2022 Well im trying to find a prime leak and I belive it is leaking injector, I just don't know which one(s) it is and that's what I am trying to find My bad, forgot that it was a leaking problem. Link to comment Share on other sites More sharing options...
Aron Posted May 14, 2022 Author Share Posted May 14, 2022 My bad, forgot that it was a leaking problem. Not a problem it's good to know if I ever need it (which hopefully I won't lol) Link to comment Share on other sites More sharing options...
85lebaront2 Posted May 18, 2022 Share Posted May 18, 2022 Not a problem it's good to know if I ever need it (which hopefully I won't lol) I tested a set of 8 for two different Chevy engines. One was a 1996 454 where they are buried inside the middle of the intake. The other was an LT1 350 Chevy. On the 454, once the top half of the intake was off you could see which ones were leaking by energizing the fuel pump and watching for which ones either sprayed or dribbled. On the LT1, 8 small glass jars, one under each injector with the sets pulled out and crank it then see if any were dry and any dribbled. If your engine doesn't have the retaining clips for the injectors, many vehicles do and you should be able to find some. Link to comment Share on other sites More sharing options...
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