Should I check the fuel pressure?, Just got the engine started and cam broke in... Options

[Bogaat]

I was having issues starting my 74 w/ newly built 2.0 w/ Djet and figured out my fuel pump went bad on me. I bought a newer 75-76 style (way cheaper) and it cranked right up. I broke in the cam, set the timing/idle and am installing my CVs so I can take this thing for a ride! It cranks right up and runs smooth...but it does seem to kick out a little black smoke when it is warm (white when first cranked, but it is cold out). Do I need to check the fuel pressure since I installed a new pump? Anything else to check? Could it be I just need to run this thing around the block for a bit? Thanks guys!

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[toon1]

Since you are breaking in a new engine, the answer would be yes. If to rich, it will wash the lubricant off cylinder walls and lead to non-seating rings (bluish white smoke). Black smoke is, of course, sign of an over rich condition.

To high a fuel pressure will result in an over rich condition and if it's really high (AFAIR above 36 lbs), it can over-ride the solenoid in the injector (called a leak).

I have to ask, Slits , this is the second time you have replied to a thread and mentioned a injector sticking OPEN due to high fuel pressures.

serious or sarcasm?

BTW, if the pump was failing and you adjusted the reg. to compensate then the FP might be too high causing a rich condition.