Injector line routing

[Matthew Beaubien]

Hi all,

During some CIS troubleshooting a couple of weeks ago, I removed all of the injectors from the head.  I went to re-install everything yesterday and found it a bit more difficult than expected.  I'm pretty sure I know which ones are #1 and #3, but not the rest.  Does anyone have a good picture or description of how everything should go?

Also, can someone explain the importance of the two o-rings on the injectors?  It appears that the large green one is to seal the injector to atmosphere, but what about the small black one near the end?

Thanks,

Matt Beaubien
'86 5kt
'73 911E