hello eveyone here is my problem. Today on the way home my eg started to over heat slowly but it did make it up to the H mark but then it dropped back down with in like a second of doing that and also i have coolant in my over flow tank with the hose running down to the bottom and i am also getting alittle coolant leak by the hose that goes to the fire wall could that be where im getting the problem from? also this a recently done mini me swap with an d16z6 obd 2 head on an obd on an obd 1 d15b7 bottom end with an obd 1 head gasket. could this cause anything? also i might have timing off a bit because i did the swap my self with no timing light. if anyone is in the atlanta gwinnett area and can come and help me please let me know. asap. thanks

 

Fix any and all coolant leaks, and then bleed the cooling system.

If the radiator hoses collapse when the engine cools, I'd test/replace the radiator cap and check whether the hose from the cap to reservoir is clogged.

 

would that be the cause of the callasped hoses?

 

old?

 

no, both have been replaced by previous owner.

 

by collapsed do you mean crimped? could be wrong hoses for that engine. post a picture

 

ok I think I may have found out whats wrong with it. I notice oil and coolant coming from the side under where the hose that goes to the fire wall is could the head gasket be wrong size or laying incorrectly or not setted right?

 

Can any one help me. Please


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Did you check the head and block for flatness before installing them? "Replaced by the previous owner" means nothing. If they're collapsing, they're old and need to be replaced. If you're leaking coolant from the heater core (the part at the firewall you mentioned) either you didn't put the hose on correctly, or it's blown.

Also, the D16Z6 head is OBD1. I don't know where you got the idea that it's OBD2 - it isn't.

This write-up is what you need to follow. With the coolant and oil leak you mentioned, you obviously managed to do something wrong. Take the head back off, get a new head gasket set, and do it again following that write-up.

 

let the heat come down then open the radiator cap and let some one help u to start the car and put your hand in the top of the radiator and see if u feel some pressure come out if not try to smell the radiator water if u smell some oil or kind of fuel thats mean you gasket head .

one more thing open the engine oil cap and look inside it if u see some fluid looks like milky thats mean wether your head is gone u have to change it i hope only the gasket head because its happen for me before and i change my engine block and head

 

I'd start with these.^^

Faulty check valve on the radiator cap would cause your hose to collapse.

 

Thanks for all of the post. I fixed the little leak i had with the temp sensor on the side of the head. the o ring on it had wore out. But now what i noticed was that when i was refilling the coolant back in it would bubble out the settle then bubble out then settle but it started to slow down every time I would pour more fluid in. I'm thinking it might just me the head gasket gone again. For the guy about the had bring obd1 it is not because i has to get an obd2 dizzy retrofitted for the head because it did not fit the obd1 dizzy. It might be a y8 or something not sure. All i know is it's from a 96 civic. Would i be able to use an obd1 head gasket with an obd2 head? And also does any one know how to get the idle screw right and the throttle cable right? I can't seem to find it on the Haynes Manuel. Also does it matter if i have an iacv from a teggy instead one from a civic? Thanks


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1996 and up didn't have a Z6...you have a Y8 head. If you're buying a headgasket purchase the Y8 3-layer metal one.

 

Ok i got a 3 layer metal one now but it's for the obd1 1.6 head. Could it be to small? Would that be the cause of lost coolant and idle problems? Also do you know where I can get the gasket for the vtec solenoid.


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I have found out that i don't have a coolant leak but the radiator cap is old and and was clogged and i had some stuff clogging up the seal on the cap. So I'm going to do a full on coolant flush and refill it and also get a new iacv and new vtec gaskets. Would any body know were to get then from.




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Dude, take a deep breath... ok, if the hoses are collapsed, it is more than likely a faulty vent cap on the radiator. When the system cools down it pulls a vacuum, which usually pulls fluid from the overflow container. The bubbling is normal when pouring fluid into the radiator, its just air bubbles, that normally work their way out when running, if the cap is good.

If your head gasket tanked you can usually tell by finding water in the oil, or water in the combustion chamber (if you look into each cylinder hole and check to see if the cylinder has a brand new shiny look/including the spark plug, chances are the HG is leaking slowly into the combustion chamber). Other than that water in the oil is a good sign.

Try the easy stuff first...