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misfire ????

Old 06-06-2007, 02:52 PM
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Join Date: Dec 2006
Posts: 99
Default misfire ????

ok guys i just got done turboing my d15b7 , and she has been running great but the other day i was driving it and my hase from my iac broke and i lost my coolant , and she got hot [&:]so i was not to far from home , and i stopped to let her cool down and see why and what i could do . i cut the end of the hose and put it back on the iac but i know i was low on coolant but she was cooled down so i started home again but she got hot again ! i was able to shut her off and coast in to my drive then pushed it to the garage. i added coolant and let her cool then started up and everthing seemed good . now i ran a commpression test on the motor and i got 155psi on 1, and 157psi on 2 ,153psi on 3, and 160psi on 4.i drove her today after about 3 day of taking it easy on her since she got hot , and i got on her a little seemed good but when i got home she was misfiring on number one ? i pulled the plug and i think it might be burning water so i think the headgasket is bad , now i had a civic do this before after i changed a headgasket and found that i did not have it tight and when i retighted it it was ok ,so i tried this but no change . i got new plug wires ,plugs, distributor cap and rotor. still no change , i also changed the fuel filter and a injector , it was clogged from dirty fuel . now when i let it cool it does not misfire but when it warmsup it misfires , do you guys think that it still could be the headgasket , i dont use coolant and i dont see any in the oil , but could it be leaking ? and causing it to foul out the plug? any help would be great, thanks hugh
Old 06-06-2007, 04:11 PM
Join Date: Sep 2005
Posts: 680
Default RE: misfire ????

how hot it hot?

you could have done worse than the headgasket. it could have cracked the head its a possibility.
get colder plugs NGK 7's or something like that.
Old 06-06-2007, 06:03 PM
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Join Date: Dec 2006
Posts: 99
Default RE: misfire ????

well i took the head off and the headgasket was blown . i flat ruled the head and block and all seems fine , as far as a crack i will find out tomarrow when the flow check it then i will put on my 2mm headgasket that i just got ordered tonite and it should be overnited so it should be here by friday so i can be racing by sat
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