Orange color on cam

[Calamity97]

I have a 97 MC Z34 3.4 DOHC. I have an orange color on the cam. The first pic is of the third cam next to the throttle body looking at the motor from the front. I believe I have a coolant leak just don't know where it's from. I think I need the lower intake gaskets replaced. Is this easy or hard? Any ideas or tips? Help needed ASAP!





Under the throttle body and fuel rails.



Some wire I found?

[SappySE107]

That wire is a ground I think. Odd place for it. Don't worry about the cam color, that is normal. Not sure exactly, might be paint but I have seen it on quite a few cams in perfect engines.

Does look like you are leaking something but you should clean that area out and then keep an eye on it.

[Calamity97]

OK Great thanks! I can button her back up now! What a relief. About the ground wire any idea where it goes?

[SappySE107]

It looks like a ground, but it may not be. You will have to trace it, or at least check voltage on it first. Don't want to short it if its not a ground. I would guess it goes to the block but I don't recall that kind of connector in that area.

[Calamity97]

Any tips on replacing the lim gaskets?

[SappySE107]

hmm, pull the power steering pump first, it makes things easier. Other than that, I think its fairly straight forward. Pull the injector rail off but leave it connected to the fuel lines.

[Calamity97]

Thanks for all your help This is what I have come upon now.





Can't really tell where it's coming from what should I do next?

[Calamity97]

Thanks alot SappySE107 you were a great help! Finally got it all done lim all the way up! Had posted on another site and no help!

[SappySE107]

Awesome. New gaskets will help. I couldn't tell from those pics if its oil, or coolant/dirt. Hope it lasts a while for you

[Calamity97]

Both, a real mess. My Z never ran so good the pull on her is just amazing reminds me of my old Z! NEW LIM's, cam cover gaskets, wires, plugs, coils, and fuel injector o-rings. Money worth spent it was a pain but well worth it. Cleaned the passage to the ports the lim, plenium, and the throttle body. My valve were shiny you can kinda see in the pic, but the ports were black.Thanks for the help saved me 550 + from the dealer and just to replace the lim's! I will try to post a vid later!