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Link to video if anyone is interested https://www.youtube.com/shorts/XoiRuBBLE6A

It definitely sounds like a timing issue to me and a few others. I just don't know how to confirm it without a gauge, only other way I can think of is to time it by ear rather than by gauge.

long story short i bought a trooper, engine needed new seals in fuel pump, done that and then once turning on, engine would rev through the roof and want to keep going. Couldn't be assed fixing this so i took my belt gear off another engine that was in good working condition and converted engine to ...

Hi<br/><br/>I have an isuzu trooper with a gear driven 4jg2 engine.<br/><br/>The pump has had a seal recon with the cold start removed. reinstalled got it bled starts up but revs upto 2500 at startup and doesn't drop down.<br/>On the back of the pump I have adjusted the fuel screw down thinking this ...