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howto test leaky/stuck injectors?

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Old May 10, 2007 | 03:53 PM
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From: Renton/Bellevue/Seattle WA
howto test leaky/stuck injectors?

Hi all.

Driving to the golf course today, and the car turns off. I think/hope its a fuse, but it wasn't. The only thing I noticed was the wire/plug going to the top of the water pump came off. The car acted flooded so I flipped the switch to kill the fuel pump, and it started with a little bit of gas. It was running off of one rotor. I limped it home, and did a compression test and got 3 solid pusles on both rotors, and about 75 ta 80 psi on each.

The front rotors spark plug was WET with fuel, and the rear was normal. My guess/hope is that I have a leaky/stuck injector that is flooding the front rotor. It has always had an issue starting warm, (reason I installed the fuel pump switch) and is always flooded after any drive.

My question is, how would you test for a leaky/stuck injector? I'm about to put my NA injectors in the front rotor if they fit in the wiring harness (I donno). Arn't they all 550 cc? I just had these turbo injectors cleaned and tested and they passed perfectly. .. *shrug*

Thanks all. ARGS.
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Old May 10, 2007 | 04:18 PM
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Ok, well my plan is to pull the uim off, pull both the fuel rails, but leave the injectors on. Then turn the car on, with the fuel pump on. Now, is the fuel pressure going to pop the injectors off the fuel rail or would that be a good way to see if they are leaking?

I guess we will see.
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Old May 10, 2007 | 04:32 PM
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Good luck...
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Old May 10, 2007 | 05:12 PM
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Originally Posted by TweakGames
Ok, well my plan is to pull the uim off, pull both the fuel rails, but leave the injectors on. Then turn the car on, with the fuel pump on. Now, is the fuel pressure going to pop the injectors off the fuel rail or would that be a good way to see if they are leaking?

I guess we will see.
Secure the injectors to the fuel rail, or else they WILL pop off. Use some wire, or a whole bunch of tough rubberbands (hehe) You have to bridge the fuel pump check connector with a piece of wire, then turn the key to 'ON' and that will pressurise the system.
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Old May 10, 2007 | 05:18 PM
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ok Thanks. I was wondering why it wasnt pressuring. Anyways now I got a new issue, while pulling the injector one of the fragile omp lines broke. I have another t2 motor I Can get the line from, but would you recommend taking the omp injector and line together? How do I Get the omp injector off?

Thanks.
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Old May 10, 2007 | 09:02 PM
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OOOOOOOOOOOOKKKKKKK haha ..well I took the UIM off, sparks plugs, did compression test, fiddled around with the injectors.... broke a omp pump line, fixed everything, tested for injector suck/leaks.... nothing ..... ....

Put it back togather, started it up... 1 rotor reved it up to 4k, let go of the gas and it idled.... ... both rotors worked....

Has been working fine ever since....

What did I do to **** off the rotory gods???
ohhh praise the rotory god. Mr. Wankel I have a sarcrifice for you.
*throws a honda engine into the fire*

haha Maybe that will give me better luck.
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Old May 10, 2007 | 09:13 PM
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Congrats.

oh yea, throw a B16 in there for me too, k?
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