lots of pressure build-up

[kain86]

hey guys if you remember i had a problem with overheating with a new d15b, i thought i had it solved but now there is exessive pressure build-up and it is starting to overheat fast.....and everytime i try to bleed the cooling system there is an endless amount of air being released and the only way i can get the oressure to go away is by shutting off the car and bleeding it for about 2-3 minutes..... what chould this possibly be and how can i fix it....and thanx i advance guy and gals

[Annihilation]

blown gasket or crack in cylinder head...once it warms up the pressure from combustion chamber escapes into the cooling system

[2.0civic]

blown gasket or crack in cylinder head...once it warms up the pressure from combustion chamber escapes into the cooling system

thats what i was thinking....


have you pressure tested or compression tested the motor?

[kain86]

i pressure tested it and it was 190 all the way across but i haven't since it's been acting funny

[scttydb411]

or cracked sleeve.

did you do a leak down or just a compression test?

[kain86]

just compression test, the motor only has about 35k on it the guy i bought it from bought it from jarco for 1500 i bought it from him for 275 with a 4.5lb lightened fidanza flywheel... i talked to the guy today and he said iyt was fine when he pulled it but he'd help me with whatever needed to be done..and what do i need to do a leakdown test? so if the head is cracked i already have another same with the block......