inbou

I noticed it earlier but i didn't think twice about the white foam in the oil filler but lately my car has been overheating, after about 45 min - hour of driving the tempurature is already 3 1/4. i was told this could be a possible reason why my car is overheating, is it?

from what i could recall this has never happened before i...
- replaced a leaking water pump
- by-passed heater core beacuse colant was pouring into my passenger seat carpet

i have added oil (10w30), even overfilled it a bit according to the dip stick.

Hypertek

iTrader: (3)

foam in oil filler?? like the oil is foaming up?
i dont think i ever noticed any white foam padding or whatnot

cmanns

white foam, coolent?

dvs71990

If its in the filler neck, its usually condensation.

misterstyx69

iTrader: (142)

Look down at the other related threads.
also,if the car is getting Hot,I would compression test it and Pressure test the cooling system,to rul out coolant seals.
It could be a simple thing though.,As easy as a Bad thermostat,or a clogged heater core or crap in the radiiator causing your Heat up problem.
anyways,good luck.

inbou

its in the filler theres a picture of the same problem on one of the related threads https://www.rx7club.com/3rd-generation-specific-1993-2002-16/foam-oil-filler-neck-530415/

i am sadly betting my money on that it may have a coolant seal, because even after full flushing my system apparently when my friend checked it about a week later there was air my system was assuming because my add coolant light would come on after 30 min of driving. as soon as i would rev to higher rpm it would go way, come to an idle or lower rpm then the buzzer would come back on. but i don't know this is what i think.