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Shoutout to the old guy who taught me about injector timing on a Detroit 8V92
Three years ago in a shop in Spokane, I was ready to just swap the whole rack on this screaming Jimmy. He walked over, showed me how to adjust the timing with a dial indicator, and saved me a $3,000 parts bill. Anyone got a favorite trick for those old two-strokes that the manuals don't mention?
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kelly.felix2mo ago
You're saying the factory tools are the only safe way. But what about all the guys running those engines for decades in the field, miles from a dealer? They couldn't all have the special gauge. Is it really that easy to burn a piston if you're careful with a dial indicator and know the specs, or is there some trick to doing it the old school way that works?
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ryanburns2mo ago
That old timer probably cost you more in the long run. Messing with injector timing on a 92 series without the right factory tools is a gamble. You get it a hair off and you burn a piston crown or crack a liner. Seen it happen. A reman rack from a real diesel shop comes with a warranty. His free advice could have led to a ten thousand dollar in-frame. Sometimes the manual way is the only right way.
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gibson.sean1mo ago
@kelly.felix you're right that plenty of guys have done it with a dial indicator and got away with it, but the margin for error on those 92s is tiny and the consequences are huge. One thing to remember is the factory gauge measures the actual plunger travel, not just the pushrod height, which is where most shade tree jobs slip up and burn a piston.
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