Ok guys i know everyone is sick and tired of seeing another overheating thread but this one might be a lil dif. Possibly cracked CYLINDER HEAD?
Well since it was overheating i decided i need to make sure its fixed so i decided i was gonna put a lil more with it. So i went out got some full race traction bars put the new EG rad in it with new slim fan. Replaced the water pump, thermostat, rad cap, thermo sensor, and throughly cleaned the system. I also did a compression and leak down test. ALL GOOD. Compression was about 270 on all 4 cylinders and and leak down was no more than 8% on all 4 cylinders. I then bleed the system with heat on full blast extremly well about 2 times about 30 min a piece Well i thought this was def going to fix my overheating isssue. WRONG. The bastard still overheating. Its advadently building pressure somewhere becuase it fills the resivor completly up.

My heat only comes out sometimes but when it blows out cold air then it overheats. As soon as the heat blows again it begins to cool down. So obviosuly theres air in the system which causes no heat to come out when the air passes threw the heater core. THATS MY OPINION!!


So to sum it up i cant figure out what the crap is going on. Do you think theres a possible crack in the cylinder head causing air to get into the system? Thats the only thing that can be left. PLEASE HELP!!!!!

THANKS!!!




Modified by doublek at 7:34 PM 7/28/2005

 

sounds like a headgasket problem.....honda heads dont usually crack but its possible.......i would start with replacing the headgasket but at the same time send the head out to the machine shop to have it pressure tested and re-surfaced......

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by non-VTEC &raquo;</TD></TR><TR><TD CLASS="quote">sounds like a headgasket problem.....honda heads dont usually crack but its possible.......i would start with replacing the headgasket but at the same time send the head out to the machine shop to have it pressure tested and re-surfaced...... </TD></TR></TABLE>

 

**** well if i dont get any other suggestions then yes thats what imma do.......thanks......anyone else know of anything?

Someone has to know or have had this problem.....i cant be the first.....

 

bump

 

Most likely it is the head, but it if it is I recommend you
replace it(or fix it) a soon as possible. I had a head G problem
for almost a year before I got fed up and decided to get it fixed.
It cost me a new engine at around $3G, because the block
was just way to warped. It is in the shop right now, and now I have
to drive a Ford escort everywhere .
Overheating sucks especially on alumnim blocks. def. get that
thing fixed, ASAP.

 

whewww.....that sucks......well im pretty sure the head is the only thing it can be....im actually not driving it at the moment but before i pull the head i was hopping someone else could shed some insight on something else it might be...........

 

i did a headgasket job not too long ago on a 1.5 civic motor, it would overheat just like yours, i changed the headgasket 3 times, but the last time i changed it, i took the block out and also have them resurface it, no more overheating problems since