- Sun Sep 26, 2010 6:41 pm
#215490
It's recently been rebuilt with OEM parts + ACL bearings / piston rings. I've done over 6k miles on it. It's had a new thermostat with the build.
Now a temperature issue has arrised. I normally have this issue after engaging vtec a few times. Over time it's become worse but I'll explain how it all started.
When I get to a set of traffic lights or stop with the engine running, the temp gauge rises. I start driving again and then it goes back down to the normal half way point. So I got home, pulled up and quickly popped the bonnet. The temp gauge started to rise and I noticed the radiator never kicked in.
This was promising in the sense I think I've found the prob, rad or rad switch. Next morning I ran the engine, let it idle to temp, and the fan kicked in, so I thought it's got to be the rad switch. At this time the fault was intermmitant. Got the rad switch replaced, coolant topped up and bleed, and idled fine and the rad kicked in as it should. Great, it's all sorted. Took it for a spin, pulled up, and watched the temp gauge and rad. The temp gauge rised to 3/4 mark, was about to turn the engine off to prevent overheating issues, then the rad kicked in.
It did this on 3 occasions. I drove home with frustration. Now last night I took it for another spin and now the temp gauge was rising even whilst driving. I kept having to turn the engine off to cool and restart my journey like 6 times to get home.
When I did get home, I opened the bonnet again whilst the engine was on, temp gauge was rising quickly, checked the rad, it wasn't on as expected... So i turned it off and called it a night. It was dark so I couldnt really check the coolant level properly, but it seemed to be ok.
However what I did notice was the rad cap was mildly warm, cold more than anything, the top rad hose ( the short hose from the head to the top of the radiator) was VERY hot, as expected ( sort of) but the long hose from the bottom of the rad to the back of the engine was a LOT cooler. Seemed like there was a lack of circulation.
I'm really hoping this isn't a head gasket fault!?! Clearly there's an issue with the radiator side of things though.
Any ideas people? Apologies for the essay, thought the more detail of the problem, the better understanding you guys would have.
Thanks in advanced,
Paul
Now a temperature issue has arrised. I normally have this issue after engaging vtec a few times. Over time it's become worse but I'll explain how it all started.
When I get to a set of traffic lights or stop with the engine running, the temp gauge rises. I start driving again and then it goes back down to the normal half way point. So I got home, pulled up and quickly popped the bonnet. The temp gauge started to rise and I noticed the radiator never kicked in.
This was promising in the sense I think I've found the prob, rad or rad switch. Next morning I ran the engine, let it idle to temp, and the fan kicked in, so I thought it's got to be the rad switch. At this time the fault was intermmitant. Got the rad switch replaced, coolant topped up and bleed, and idled fine and the rad kicked in as it should. Great, it's all sorted. Took it for a spin, pulled up, and watched the temp gauge and rad. The temp gauge rised to 3/4 mark, was about to turn the engine off to prevent overheating issues, then the rad kicked in.
It did this on 3 occasions. I drove home with frustration. Now last night I took it for another spin and now the temp gauge was rising even whilst driving. I kept having to turn the engine off to cool and restart my journey like 6 times to get home.
When I did get home, I opened the bonnet again whilst the engine was on, temp gauge was rising quickly, checked the rad, it wasn't on as expected... So i turned it off and called it a night. It was dark so I couldnt really check the coolant level properly, but it seemed to be ok.
However what I did notice was the rad cap was mildly warm, cold more than anything, the top rad hose ( the short hose from the head to the top of the radiator) was VERY hot, as expected ( sort of) but the long hose from the bottom of the rad to the back of the engine was a LOT cooler. Seemed like there was a lack of circulation.
I'm really hoping this isn't a head gasket fault!?! Clearly there's an issue with the radiator side of things though.
Any ideas people? Apologies for the essay, thought the more detail of the problem, the better understanding you guys would have.
Thanks in advanced,
Paul
