3VZE intake help needed

[Pick_T4R]

'94 4Runner 3.0 3VZE Auto, 225k - Engine was running fine other than the code 52 (knock sensor) timing retarded so poor power/mpg

I've been taking it slow but finally reached the knock sensor today. When I pulled it, there is oil pooled in the back half and coolant pooled in the front; see pic.

Would that have come from the intake manifold? It didn't feel like it much of anything poured out when I pulled it off. It is VERY evident the previous owner has been under here: new gaskets and timing belt and pretty poor work (not that I'm a master mechanic).

My injectors are out for testing/rebuilding; otherwise I have everything I need to start putting it back together. Just that much oil & water there spooked me...

Do I have a serious problem here?? Should I just clean it up and reassemble??? HELP?!?

 

[Pick_T4R]

My mistake, it was not coolant in the front half... it was gas. When I opened the fuel rail, it poured and poured out before I could get it stopped. It flowed down the front so the intake manifold gasket must have allowed some to seep in. But there is lots of oil in the back half... Is that OK??

 

[Pick_T4R]

Super helpful thread on Toyota Nation on this... I've had an oil leak as well, thinking it was the rear main seal but sounds like this may be related??

https://www.toyotanation.com/forum/...-cavity-under-intake-manifold-full-oil-2.html

Appreciate any other thoughts...

 

[Ahlem]

How brittle are your valve cover gaskets? We had oil running all over with old crusty gaskets. I'd clean everything up real well and change any gasket that was crusty and put it back together. I'd suggest a compression test as well.