Sorry but the details are necessary. The current engine in my car is a B18a1 block with a B18b1 Head. It was a complete b18a1 until i started having serious overheating problems. after changing the thermostat and checking all hoses, I was told by a local honda enthusiast that it was most likely exhaust gas leaking into my water jacket in the block. I swapped the head for another i had which had only 1k miles on it since being milled, having valve seals replaced, and 3 angle valve job. the mechanic checked it for warp and installed it with some arp studs from my other block(torqued to 68ft lbs.) it was still overheating and the old head gasket was fine so i swapped the radiator. at first this fixed the problem. Still had a little smoke at startup and after sitting at idle for a few minutes. Figured it to be breaking in the new head... no prob. as time has passed now (bout 3 - 4 weeks) the car has started smoking very bad. it smokes especially bad if started up while the engine is still warm and the plugs are definatley getting fouled as i can tell by the missing that occurs during a warm startup. a few revs and it clears up eventually. also my overheating problem has returned. inspection of my engine bay is as follows: oil on the harness bracket under the intake manifold towards the front of the block, oil slung up by the belt onto the hood, more oil resiue in the vesinity smoke from the bottom of the block (possible dripping onto my exhaust manifold at the front of engine bay), no noticable loss of coolant, a plug disconnected which i reconnected (beside the oil level sensor on the block dont know what it is) and oil dissapearing from the engine(obviously). I noticed that I have what apears to be my PCV valve to my intake mani directly above the area that i am finding oil collecting. hopefully someone can help me diagnose this problem. what am i missing here?

 

Did you check to see if the block could have been warped? Have you replaced the water pump.

 

by that i assume you mean the top of the block. forgive me only a couple years into tuning cars. it was checked by my mechanic (very good mechanic btw) before reassembly. we did not replace the water pump but it was checked and pumping and bearings in good working order. I just dont understand the vaccum system that well but I am thinking that pcv has something to do with it. IDK i am so confused...

 

What color is the smoke? If blue your burning oil, if white your burning coolant, and black is running rich. Your head gasket might have leak, even though it's new.

 

that is a good tip on how to see what going on with your car. but i have a question cuz i dont understand this" it was still overheating and the old head gasket was fine so i swapped the radiator" so u saying that u kept your old head gasket when u replace your b18b1 head? but if u didnt that might be your problem cuz u should always replace head gasket when getting your head replace even if it look like in good conidition but it wont be cuz the head gasket are a one time used only and have that they wont hold

 

noi didnt keepthe old gasket. lol. i replaced all the top end gaskets both mani gaskets head gasket plug rings and valve cover. the smoke is definatly blueish. i didnt however put in a new thermostat and as soon as the heat gets up close to 3/4 it immediatly starts dropping back to normal. prob a stuck thermostat. but that only solves one problem.