extreeme overheating

Subafury · Post by **Subafury** » Mon Nov 27, 2006 8:21 pm

yesterday my car (ea82t) started to overheat from just normal driving (like half an hour drive) on the way for some sand 4x4. by the time i got there temp needle was just before the red. normal operating temp is like a 1/4 or a third up the gauge. throughout lots of cooling down periods temp fluctuated between just over half and up to the red. i even got it to there on way home from work today-10mins.

obviously checked coolant, both fans (including new thermo), oil etc. water pump seems fine too. rad fins arent blocked. any other ideas?
there is one other thing- i remember i had just put in a little morey's upper cyl lube/injector cleaner after hearing about how good it is, and it says can also be used as lead replacent. would this cause my overheating?
else i may just take it to a rad shop as need it fixed by this w/e. argh!

cheers for suggestions

matt.

SuBaRiNo · Post by **SuBaRiNo** » Mon Nov 27, 2006 8:55 pm

Any steam coming out of the exhaust???

Dave

mattims · Post by **mattims** » Mon Nov 27, 2006 8:57 pm

simple check might be thermostat problems .. try taking it out and running to see if it still overheats... or it could be a water pump problem

AndrewT · Post by **AndrewT** » Mon Nov 27, 2006 9:01 pm

Second Mattim's suggestion. Definitely remove the thermostat and run it without it to test, it's probably not opening propperly.
Chuck the thermostat in a cooking pot of water on the stove and watch it to see if it opens too.

steptoe · Post by **steptoe** » Mon Nov 27, 2006 9:06 pm

my thoughts exactly

SuBaRiNo · Post by **SuBaRiNo** » Mon Nov 27, 2006 9:12 pm

Agreed... only takes a small air bouble sitting above the thermostate to stop even a working thermostate opening... remove it to be sure.

Dave

wrx_nut · Post by **wrx_nut** » Mon Nov 27, 2006 9:24 pm

yer check your thermostat... also check your radiator wires are connected and it might be a good idea to flush your radiator out with a hose...

wrx_nut

Subafury · Post by **Subafury** » Mon Nov 27, 2006 11:16 pm

mmk took thermostat out-was pretty easy. tested it in boiling water and opens up fine. will put some water back in n run with out it now to test car.

Subafury · Post by **Subafury** » Tue Nov 28, 2006 12:58 am

tested car with no thermostat. after 10 mins of flogging it round the block temp still went up, gettin close to the red. ill see if i can get it into balcatta rads tomoz coz i dont know whats going on.

Milla · Post by **Milla** » Tue Nov 28, 2006 1:29 am

when i took my EA82 in for service they didn't bolt on the pully for the 2nd fan properly, i only did it finger tight and it got me home

wrx_nut · Post by **wrx_nut** » Tue Nov 28, 2006 9:09 am

id be checking your temp sensors as iv had one stuff up in the vortex and giving bad readings.... i actully put another radiator in it and it was fine...

Subafury · Post by **Subafury** » Tue Nov 28, 2006 1:08 pm

put thermostat back in this morning and gave it a 15 min thrash round the block again. but could only get the temp to just above half. hmmm it has sorta fixed itself.....more testing necessary i think.

Post by **Captain Obvious** » Tue Nov 28, 2006 4:53 pm

get antother radiator i reckon and try that or take yours out and give the fins a good clean as they could have mud it it also check the water it the overflow bottle is getting filled and over flowing it could be a blown head gasket, they leak into the water jacket on boost and pressurise the cooling system..

bryan

Post by **Alex** » Tue Nov 28, 2006 8:06 pm

maybe you should just get a carby motor? hahaha

alex

D3V1L · Post by **D3V1L** » Tue Nov 28, 2006 8:09 pm

as i recall your carby has had cooling issues as well ales...

dave

Post by **Alex** » Tue Nov 28, 2006 8:57 pm

mmmm nar not really...not red lining..just 2/3rds

ea82's are awesome dude! she sits on about 1/8th temp all day long

alex

subby · Post by **subby** » Tue Nov 28, 2006 9:00 pm

sounds similar to my problem, only now i think its had it!! its worse!!

my temp used to fluctuate after about 40 mins of normal driving,
but i've had 3 thermostats, a new radiator and a c02 test (came back all good) nothing helps, i still cant find the prob.

BrennyV · Post by **BrennyV** » Tue Nov 28, 2006 9:10 pm

Just remember EA's are great for bizarre ways of blowing head gaskets or just weird things like corroded out cooling galleries.

I drove my last MPFI for nearly 1 year with a blown head gasket (usto get hot hot!). Basically used fuck all water or showed any signs of a blown head. Then when the unspeakable happened and I had to strip the car I noticed the head gasket.

SuBaRiNo · Post by **SuBaRiNo** » Tue Nov 28, 2006 10:47 pm

DO NOT under estimate the effects of a faulty radiator cap... maybe look into that too.

Dave

steptoe · Post by **steptoe** » Tue Nov 28, 2006 10:47 pm

I've just finished pulling apart my 3rd EA82 this year or was that four, and all had beautifully intact head gaskets. Some heads were cracked though!