Overheating Problems

General engine questions/issues that aren't specific to the other categories
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By LowTEC-Derbo
- Thu Oct 04, 2007 3:23 am #25220 i'm running a Mugen cap on a DOHC half sized radiator which is stock..no problems :thumb:



Plastic should not crack due to that minimal change in pressure/temperature.


now..too low of coolant causing steam to soften the plastic..thats another story..
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By ChicagoMike
- Thu Oct 04, 2007 3:40 am #25221
LowTEC-Derbo wrote:i'm running a Mugen cap on a DOHC half sized radiator which is stock..no problems :thumb:



Plastic should not crack due to that minimal change in pressure/temperature.


now..too low of coolant causing steam to soften the plastic..thats another story..


Lets think about this though, based on my previous post......

The difference between the 1.1 bar and the 1.3 bar is almost 3 full pounds. Keeping that in mind, when you look at the rated pressure on the 1.1 cap, and then add another 3lbs on it..........that comes out to almost a 20% increase.

I dont consider 20% to be a "minimal" change in pressure.

I'm glad you havent had any problems with your set up so far, and most people havent/wont, this is just a lil food for thought. :thumb:
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By LowTEC-Derbo
- Thu Oct 04, 2007 3:45 am #25223 true,


the differences is 20% but.. a new radiator would be able to withhold these caps, but probably not a 17 old radiator thats been tired out..
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fan

By partonie
- Thu Oct 04, 2007 7:32 am #25242 I hot wired the fan it comes on and replaced the switch but not even the new switch seems to make it go.
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Re: fan

By ChicagoMike
- Thu Oct 04, 2007 1:38 pm #25257
partonie wrote:I hot wired the fan it comes on and replaced the switch but not even the new switch seems to make it go.


Sounds like a thermostat has crapped out. :eh:
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Re: Overheating

By Ej2-B16a
- Sun Oct 28, 2007 8:10 pm #27818
partonie wrote:I have the same problem my civic overheats at stops. I fill the radiator almost every other day. I checked the oil everything looks fine. I replaced the cooling fan switch but it doesn't seem to come on when it gets hot. There is no leak. This is a 95 honda civic ex this has been going on for about a year and a half any help.


yah its ur fan man.. or thermastat.. not opening :O

By eg_hatchie
- Fri Nov 16, 2007 4:27 pm #30234 i have the same problem.. i go to the radiator show this morning.. he overhauled my radiator.. replace my thermostat.. and my radiator cap.. after 30 mins of driving my temp gauge is still going high... .. any help pls?!.... my fans are working..
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By chnzgoofball
- Fri Nov 16, 2007 6:27 pm #30247 when i bought my eg i had overheating issues sitting in stop and go traffic i popped my hood and found out the dude i bought it from took off the fan :x
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By flyinryan122
- Fri Nov 16, 2007 11:22 pm #30270
eg_hatchie wrote:i have the same problem.. i go to the radiator show this morning.. he overhauled my radiator.. replace my thermostat.. and my radiator cap.. after 30 mins of driving my temp gauge is still going high... .. any help pls?!.... my fans are working..

check the coolant temp sensor in the cylinder (located under the distributor) if it goes bad your gage will say it over heating when your really not. a way i was told to check it was to take the sensor out, plug it back into the wire that pluggs to it, turn your ignition on, and touch the end of the sensor to the body or somewhere it can be grounded, if it sparks it's good if not it's time for a trip to honda, mine was about $36 i think???
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By teal_dx
- Mon Nov 19, 2007 4:42 am #30442
flyinryan122 wrote:check the coolant temp sensor in the cylinder (located under the distributor) if it goes bad your gage will say it over heating when your really not. a way i was told to check it was to take the sensor out, plug it back into the wire that pluggs to it, turn your ignition on, and touch the end of the sensor to the body or somewhere it can be grounded, if it sparks it's good if not it's time for a trip to honda, mine was about $36 i think???


good info, I needed to hear this!
Tonight my eg's temp gauge was going up and down. There was no pattern, sometimes it would go up just past 3/4 when accelerating, then jump down back to just below 1/2 at a stop. other times it would creep up to 3/4 when sitting at a light, then jump back down to just below 1/2 when I started moving again.
The outside temp was in the 30's and the engine was running perfectly normal, so I had a hard time believing the gauge....
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By flyinryan122
- Mon Nov 19, 2007 5:07 am #30445 thats what mine was doing. i would drive around and it would be fine, then if i stopped the needle would jump to hot so i looked into a way to check the sensor and thats what i came up with. hope it helps you...

By eg_hatchie
- Mon Nov 19, 2007 2:17 pm #30459 i cant locate the coolant temp sensor.. do you have pics???..
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By flyinryan122
- Mon Nov 19, 2007 6:54 pm #30479 it's the small round plug next to the one wire sensor. there are three sensors located under where the distributor is located, the temp sensor is the middle one i believe.
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