Quote:
Originally Posted by renaissanceman
I installed new shields when I swapped them, *however* one of the injectors leaked at the half part line, so I took it out and sent it back for a rework. When I installed, I did not replace the heat shield a second time -- it had had about 500-1000 miles on it at that point.
It sounds like I have knock on one cylinder, which fades away to nothing after everything is good and hot (20 min on the freeway). If delivery valves don't solve it, I'll look into the next step. I can't remember which injector had the same heat shield used on two installs, though...
|
Old thread so this may already be fixed, but heat shields CANNOT* be re-used.
(* They may be re-used if you bend them back to the original shape, but there is a risk that they won't seal or last as long as a new shield. A failed heat shield will probably result in the injector heating up too much and fuel burning / solidifying in the tip of the injector and ruining the spray pattern, resulting in smoking and rough running and poor performance, and ultimately you may have damage to the injectors, the pre-chamber, and to the piston / head, and that gets really expensive.)
See here for a nice couple of pix and more info:
Do I NEED new injector heat shields?