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Update: My old Detroit 60 series went from 4 mpg to 6.5 after swapping the injectors and tuning the pump.
That was after a full rebuild in my shop over two weeks, but now I'm seeing a slight haze at idle, so should I adjust the timing or check for a different issue?
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jakeb8116h ago
Wow, @xena_bailey18 might be onto something with those weepy lines!
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xena_bailey1820h ago
Holy cow, you got a 60 series up to 6.5 mpg? That's wild, I've never heard of one getting that good (most guys I know are happy to see five). A haze at idle after all that work is a real bummer though. I'd double-check the injector seating and the torque on the lines before touching the timing, honestly. Sometimes a tiny air leak or a weep can cause that.
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lewis.mila18h ago
Read a forum post where a guy chased a similar haze for weeks. Turned out to be a cracked injector washer you could barely see. He replaced all the copper seals and the smoke cleared right up. Those old fuel lines can also get a hairline crack that only shows under pressure. Might be worth pulling them off for a real close look.
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