Injector Pintle Camp

[latief]

I am thinking that I might have a vacuum leak around the injector seals. I will be changing the seals since they were the only things i forgot to change after the head-gasket replacement a couple of months ago. i remember though when i did this that one of the pintle caps on the injector was partially broken.....I would like to change that.....

Questions.

Is this something I could replace without specific tools?

On my M104, is the correct designation for the Injector is Bosch EV1?

Do they affect performance/ sealing in any way? i remember the seal was snug even with the broken pintle cap ......

Thanks,