SR running a bit hot, any advice

[LoSt180]

Originally Posted by TheRealSy90

You need a thermostat to allow the coolant in the radiator time to actually cool down.

It's actually opposite. By not running a thermostat, there's nothing to keep the engine running at optimum temp. This would be really noticeable on cold days when the coolant is flowing through the radiator unrestricted, the engine may actually never reach op temp. Basically the thermostat keeps the engine running at op temp, opening as needed.

[kyral]

Originally Posted by doridoridori

well basic mechanics it's not like that can't happen i don't see why the SR or KA would be excluded from those signs BUT yea it's been around there for the most part hasn't seen 200F yet. I test drove it again last night and the hose clamp on the lower radiator hose broke so i replaced it last night when i got back home, it was still on but was slightly leaking cause it wasn't tight enough. I topped it off this morning going to cruise it around today to make sure but last night it hung a hair over the 180F mark and didn't keep creeping up

The oil galleys were really far away from the cooling jackets iirc.

Originally Posted by TheRealSy90

You need a thermostat to allow the coolant in the radiator time to actually cool down.

no. without a thermostat your engines temprature will be controlled by the ambient temprature and may never reach operating temprature on the streets. and on really cold days would be stupid low temps

[doridoridori]

Originally Posted by LoSt180

It's actually opposite. By not running a thermostat, there's nothing to keep the engine running at optimum temp. This would be really noticeable on cold days when the coolant is flowing through the radiator unrestricted, the engine may actually never reach op temp. Basically the thermostat keeps the engine running at op temp, opening as needed.

I see well i finally took it on the highway for the first time yesturday it eventually hits 180F but gradually creeps up to 200 then slowly climbs.

[bmxguy08]

Just tossing this out there because my buddy had this issue one time and after a few hours of checking basically what everyone has said already I was checking all the hoses and one of the hoses that he had used to bypass his heater core had a small kink in it restricting flow, it was very hard to see but once I changed the hose with one that fit better the temps were a-lot better after that.

[doridoridori]

Originally Posted by bmxguy08

Just tossing this out there because my buddy had this issue one time and after a few hours of checking basically what everyone has said already I was checking all the hoses and one of the hoses that he had used to bypass his heater core had a small kink in it restricting flow, it was very hard to see but once I changed the hose with one that fit better the temps were a-lot better after that.

damn didnt think about that at all, definitely worth checking i will do just that and see, makes sense though if that was kinked it won't get proper flow etc

[kyral]

the heater bypass hose that bypasses the thermostat willc ause you to overheat if its kinked but it will stop overheating when you pull the thermostat

[doridoridori]

Originally Posted by kyral

the heater bypass hose that bypasses the thermostat willc ause you to overheat if its kinked but it will stop overheating when you pull the thermostat

I see yea i don't have any kinked hoses, im starting to suspect the worse HG issue, going to try to do a leakdown test as soon as i can cause that's really the last thing i expect it to be at this point unfortunately

[R3b]

Originally Posted by bmxguy08

Just tossing this out there because my buddy had this issue one time and after a few hours of checking basically what everyone has said already I was checking all the hoses and one of the hoses that he had used to bypass his heater core had a small kink in it restricting flow, it was very hard to see but once I changed the hose with one that fit better the temps were a-lot better after that.

Didnt think of this, though I have a KA im seeing similar temps as OP in Florida. My buddies say they run 176f basically all day on there cars no problem but they have ebay aluminum and altima fans while I got Mishimoto fan shround and koyo. Got stock Tstat as well.

Ive got a circuit sports fan controller and im seeing temps for a short drive 15-20 to work I get to around 84c(183) regularlly on my drive to work in the morning. Then when I go to school about 10 miles away taking mostly I highway I hit 90-94c(194-201f) always and if Im driving a lot it will creep up to 95-97.

Also noticed if I drive and let it cool down then go to start it sorta like when I go out to our meets, hang out for a few hours and start the car but dont turn on the fan once it hits OP temp at 70-74c I will wait a bit and my temp gauge on the cluster is reading fairly hot and my gauge looks to be lagging behind. I did notice im not getting a reading on one of my probes for my fan controller. So could be my temp for oil is 194-201f which is normal for oil being 10-20 degrees warm than coolant or maybe my oil temp gauge got damage when I replaced the filter recently... The wires are so brittle.

First I'll see which sensor im reading, switch to water wetter and distilled instead of 50/50 mix and get one of those coolant funnels since i've herd good things about those.