AAZ injector refresh
Posted: 29 Jan 2024, 18:03
I've been trying to get my AAZ running and starting a bit smoother and since 3/4 of my injectors had green waxy gunk seeping out I thought I'd pop them out and see what I can find.
Injectors all came out fine. There isn't anything obvious wrong with nozzles 1-3 (I know that doesn't mean much) but nozzle 4 looks damaged on one side. There's a lot more carbon buildup on that side too:
The sealing washers on 1-3 came out easily too and I found my first issue, I can see the glow plugs sticking into the swirl chamber on 2 & 3, but not on 1! Can they snap off or erode somehow? Will be changing them either way but I wonder where that bit is now
The real issue is that 4th cylinder:
That sideways spray has wrecked the sealing washer and I can't get it out, I'm wondering if it's melted or welded itself to the cylinder head? Has anyone had anything like this before?
Injectors all came out fine. There isn't anything obvious wrong with nozzles 1-3 (I know that doesn't mean much) but nozzle 4 looks damaged on one side. There's a lot more carbon buildup on that side too:
The sealing washers on 1-3 came out easily too and I found my first issue, I can see the glow plugs sticking into the swirl chamber on 2 & 3, but not on 1! Can they snap off or erode somehow? Will be changing them either way but I wonder where that bit is now
The real issue is that 4th cylinder:
That sideways spray has wrecked the sealing washer and I can't get it out, I'm wondering if it's melted or welded itself to the cylinder head? Has anyone had anything like this before?