Welcome aboard Halfthrottle! There is a copy of the Serviceman's Reference Book for the D4 7J Form 7490C in the ACMOC library. You will find your answers there. Thank you for joining!
Craig

Flat seat injector adjustment procedure..
[attachment=73814]Flat seat press adj #1.jpg[/attachment]
[attachment=73815]Flat seat press adj #2.jpg[/attachment]
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