crazy injector. smell of petrol car running

[alexdmc1]

The fuel has to overcome a set spring pressure inside the injector. If the spring is damaged or something is "stuck open" due to debris in the injector, the injector will leak as you describe. If the same injector leaks no matter which hose it is attached to, the injector must be cleaned (if you get lucky, sometimes it can fixed by cleaning) or simply replace it.

We need to know which situation is true:

1) the same injector leaks no matter which port/hose it is attached to OR
2) it doesn't matter which injector is attached to a particular port/hose - it leaks at rest every time

result:
it doesn't matter which injector is attached to a particular port/hose - it leaks at rest every time

[82DMC12]

Then it appears the fuel distributor must be replaced or rebuilt.

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[Bitsyncmaster]

The fuel has to overcome a set spring pressure inside the injector. If the spring is damaged or something is "stuck open" due to debris in the injector, the injector will leak as you describe. If the same injector leaks no matter which hose it is attached to, the injector must be cleaned (if you get lucky, sometimes it can fixed by cleaning) or simply replace it.

We need to know which situation is true:

1) the same injector leaks no matter which port/hose it is attached to OR
2) it doesn't matter which injector is attached to a particular port/hose - it leaks at rest every time

Each port inside the FD has a spring seal (that is what the thin plate between the two halfs does). So any garbage around those seals and it will leak fuel.

[alexdmc1]

Each port inside the FD has a spring seal (that is what the thin plate between the two halfs does). So any garbage around those seals and it will leak fuel.

thanks Dave!

I think....I had to adjust the CO adjustment to extra revs....is the opposite possible? i.e. the bad injector spits a lot because of the extra CO regulation, so the problem is the other 5....I don't know. very strange that the negative adjustment has no visible effect....

[Bitsyncmaster]

thanks Dave!

I think....I had to adjust the CO adjustment to extra revs....is the opposite possible? i.e. the bad injector spits a lot because of the extra CO regulation, so the problem is the other 5....I don't know. very strange that the negative adjustment has no visible effect....

I've only rebuilt one FD. There are a lot of small holes that need to be clean inside the FD. But my guess is your leaking port probably has some "dirt" on that thin metal plate so it can not seal. If I was to do another FD rebuilt, I would not use anything to seal the two halfs and make sure everything is super flat and clean. The factory did not use any sealer. I would lightly sand the halfs on my granite surface block to make sure it's flat.

[mark w]

After you fix this, be sure to change the engine oil. no doubt it has been contaminated by the excess fuel, got thinned and will not protect the engine properly.

I bet that if you pull the dipstick, it will smell like fuel.

[alexdmc1]

Thanks a lot for your valuable advice. I'll check the whole system. Thanks so much

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