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History, bottom port side plug (#6 if I am correct) was fouling every few months, engine didn't like to idle on the hose, I suppose because with 2 cyl. Already shut off at idle, a third not acting right made the engine die while trying to flush. WOT was ok, no surging or missing, but not getting my normal 5500-5600 rpm. Went through the secondary ignition, measured all the boots, and a few were at the top of the 4-6 ohm range so replaced them. Also noticed the #6 wire where it screws into the boot looked corroded inside, so I replaced that coil pack/wire, all new plugs and the engine screams, however; pulled #6 plug yesterday, after running for a while on the hose, the center porcelain on the electrode was wet with fuel oil mix, the other 5 plugs were dry and white/tan normal. Pulled compression on all cylinders and all were at 125 +\- a pound or two. So, I am thinking I may have an injector issue? I think the injector is firing, or the engine would not run as well as it does, but I think the injector may be leaking under pressure and constantly dripping fuel into the cylinder? Am I chasing the right dog here?
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A guy (Rich Z) at Brucato (fuel injector servicing place amongst other things they do) has reported that he sees more HPDI injectors leaking than he sees being clogged. He says that they can adjust them.
You might want to consider sending yours to them for an inspection and calibration, if needed. If you do, make sure that you number them so that when they give you a fuel flow report you will know which injector was doing what.
BrucatoFIS, Inc. -
Thanks Bosco that is kind of my plan, I wish I could find some good gouge on removing them, I have been looking on THT and some other forums, and it seems they can be pretty nasty to remove, would like to find someone who found a trick or tool they found that helps pop them out? ThanksComment
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I have read about them being a bitch to remove but personally have not found any to be a real problem. Worst that I have seen is one of the gaskets remaining stuck to the head, in which case it can be removed with a pick.Comment
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Alright, thanks, I think that's where I'm going next, maybe next weekend dive into it..Comment
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