Engine Cooling & Radiator Problem – Any ideas??

[Lukezen27]

Hey Guys

My radiator slowly fill’s up the overflow bottle and doesn’t suck it back in like it should..

I upgraded to 50mm aluminum radiator as I thought my stock one was not holding up but the new one also has the same problem so I would guess its something ells?

Any ideas?

Thanks

LukeZen

[fatboyz39]

ill check radiator cap first, replace that. If not then looks like your up for a new headgasket

[Lukezen27]

ill check radiator cap first, replace that. If not then looks like your up for a new headgasket

Hey Jimmy

New radiator cap came with the new radiator, some problem...

No oil in the coolant and no coolant in the oil

Can it still be the head gasket?

[bennjamin]

did u get a leak-down test , like i suggested ages ago lol ? IT might give you a better indication than asking anyone here.

[Lukezen27]

did u get a leak-down test , like i suggested ages ago lol ? IT might give you a better indication than asking anyone here.

lol Ben

I don't think that's the problem that's why I asked as we did the comp test and so on...
I've asked my Mech and he doesn't do em :thumbdwn:

Who do you recommend?

[bennjamin]

you need someone with an air compressor and the proper attachment to go into your spark-plug holes ~ im sure some of the bigger more reputable places have got it. Gave Robert or peter @ hannys a call yet ? Or anyone here know of a place in syd with the proper leakdown kit ?

[Lukezen27]

you need someone with an air compressor and the proper attachment to go into your spark-plug holes ~ im sure some of the bigger more reputable places have got it. Gave Robert or peter @ hannys a call yet ? Or anyone here know of a place in syd with the proper leakdown kit ?

Man I asked Rob and he keeps telling me its not the head lol

Might get a better response out of Peter..

[bennjamin]

dunno man.Your engine is rebuilt to stock spec and now has a turbo hanging off it - just get all the tests done and take it from there

[jdmTYPE R]

u can try running it with out a thermostat,wat does the temp gauge show when it overfill??..

[Lukezen27]

u can try running it with out a thermostat,wat does the temp gauge show when it overfill??..

Temps never change and the fan kicks in when needed.

Maybe the hose to the radiator needs changing

[jdmTYPE R]

wat thermostat u got?? try taking the thermo out and drive it see if it bubbles out,the hose wont make much of a difference in cooling..or u can try bypassing the fan and make it stay on ..... see if that helps

[Lukezen27]

wat thermostat u got?? try taking the thermo out and drive it see if it bubbles out,the hose wont make much of a difference in cooling..or u can try bypassing the fan and make it stay on ..... see if that helps

OEM thermostat

I died only 4 months ago so its brand new

It's not pushing it out anywhere near as fast with the new radiator so maybe I just need a new low temp one?

[fatboyz39]

There might be a small leak from headgasket pushing gases thru the cooling system. This can be cause thru detenation. As i said i was in a similar situation and learnt the hard way by changing thru 2 head gasket only finding it wasn't the issue it was detenation and cause the head gasket to leak.

The added pressure is there which cause the overfill bottle to fill up, and not return to the system.

Here is a simple test. When cold start up the car, lets say 2-3min. turn off and remove the radiator cap. When you relase pressure cap if abit of coolant comes out thats seems normal, but if a shitload of coolant bursts out then you have a headgasket problem.

[fatboyz39]

OEM thermostat

I died only 4 months ago so its brand new

It's not pushing it out anywhere near as fast with the new radiator so maybe I just need a new low temp one?


OEM thermostat should be more then fine. No point getting low temp thermostat without a lower thermo fan switch.

[Lukezen27]

There might be a small leak from headgasket pushing gases thru the cooling system. This can be cause thru detenation. As i said i was in a similar situation and learnt the hard way by changing thru 2 head ghsket only finding the its wasn't the issue it was detenation and cause the head gasket to leak.

The added pressure is there which cause the overfill bottle to fill up, and not return to the system.

Here is a simple test. When cold start up the car, lets say 2-3min. turn off and remove the radiator cap. When you relase pressure cap if abit of coolant comes out thats seems normal, but if a shitload of coolant bursts out then you have a headgasket problem.

What's the course of detonation? My e-mang is tuned for 89 Oct so that should be very safe running on 98 Oct..

Ok Jimmy I'll do your test tomorrow :)

Thanks for the tip :thumbsup:

[fatboyz39]

What's the course of detonation? My e-mang is tuned for 89 Oct so that should be very safe running on 98 Oct..

Ok Jimmy I'll do your test tomorrow :)

Thanks for the tip :thumbsup:

worn piston rings.

Do a leak down test...that'll show whats going on. It takes a good 1-2hours to do.

[Lukezen27]

worn piston rings.

Do a leak down test...that'll show whats going on. It takes a good 1-2hours to do.

brand new rings Jimmy :( are you setup for that test?

[jdmTYPE R]

turbo cars over heat quicker then a NA i had over heating problem with my turbo motor running a lower temp thermostat and fan switch helped.. for street driving but had heating prob on the track..

[Lukezen27]

turbo cars over heat quicker then a NA i had over heating problem with my turbo motor running a lower temp thermostat and fan switch helped.. for street driving but had heating prob on the track..

Is it fixed now?

what was the problem?

[jdmTYPE R]

thermostat open to late and radiator couldnt cool it in time.by takign out the thermostat is just saving u money doing the leak downtest and if this doesnt help then go do a leak downtest..

[jdmTYPE R]

u got pm

[jezsx]

what about a cooling system pressure test? You probably have had that done already yeah?Holds pressure?

[Lukezen27]

There might be a small leak from headgasket pushing gases thru the cooling system. This can be cause thru detenation. As i said i was in a similar situation and learnt the hard way by changing thru 2 head gasket only finding it wasn't the issue it was detenation and cause the head gasket to leak.

The added pressure is there which cause the overfill bottle to fill up, and not return to the system.

Here is a simple test. When cold start up the car, lets say 2-3min. turn off and remove the radiator cap. When you relase pressure cap if abit of coolant comes out thats seems normal, but if a shitload of coolant bursts out then you have a headgasket problem.

Jimmy's Test Complete:

Bit of pressure when I opened the cap but no coolant came out, I've opened it before when really hot and only a bit came out that time... good or bad?

[Limbo]

sounds normal.
Wat coolant are you using? Its not the cheap stuff isit? cos i rem that one my sister's car the cheaper coolant was the problem.

[Lukezen27]

sounds normal.
Wat coolant are you using? Its not the cheap stuff isit? cos i rem that one my sister's car the cheaper coolant was the problem.

Na its Castrol good stuff

[TODA AU]

Check overflow siphon in bottle for any small holes.
This can cause same problem.

[tinkerbell]

do you mean the rubber hose bit inside the overflow bottle might have a hole TODA AU?

[TODA AU]

do you mean the rubber hose bit inside the overflow bottle might have a hole TODA AU?
Yup... That's what I mean.
If this is the case, the coolant cant be drawn back.
Or if the hose is missing.

Bare in mind, this is only a guess as to why the problem exists

[online]

Do you have a blockguard or aftermarket sleeves in the motor?

[Lukezen27]

do you mean the rubber hose bit inside the overflow bottle might have a hole TODA AU?

The rubber hose fell off when checking so I turned to round and now it fits far better :thumbsup:

Drive to the shop and some coolant has gone back into the radiator :)


Do you have a blockguard or aftermarket sleeves in the motor?

Nope completely stock motor

[tinkerbell]

so TODA AU was right?

winner!

[Lukezen27]

so TODA AU was right?

winner!

Looks that way :)

Thanks Adrian

I asked that question on the first page and no one replied to me :thumbdwn:

[Limo]

Jimmy's Test Complete:

Bit of pressure when I opened the cap but no coolant came out, I've opened it before when really hot and only a bit came out that time... good or bad?

ive just noticed the same prob in my car, car temp gauage normally sits just below half way all yr round, but lately like in the last week its been sitting above half to 3/4 high.. but it does drop abit when im moving.

ive opened it when it was just warm and no coolant came out, but opened it tonite after driving normally (no boosting) and it blow up everywhere.. i have a feeling something is farked:(

[Limbo]

try doing the simple things like changing the cap, thermostat, coolant and the pipe like Luke did. May solve your problem.

[tinkerbell]

ive opened it when it was just warm and no coolant came out, but opened it tonite after driving normally (no boosting) and it blow up everywhere.. i have a feeling something is farked:(

CAUTION: Do not open when hot

means: do not open when hot.

[Lukezen27]

CAUTION: Do not open when hot

means: do not open when hot.

No! your quite right..

You need to follow Jimmys test as per this post

FYI

There might be a small leak from headgasket pushing gases thru the cooling system. This can be cause thru detenation. As i said i was in a similar situation and learnt the hard way by changing thru 2 head gasket only finding it wasn't the issue it was detenation and cause the head gasket to leak.

The added pressure is there which cause the overfill bottle to fill up, and not return to the system.

Here is a simple test. When cold start up the car, lets say 2-3min. turn off and remove the radiator cap. When you relase pressure cap if abit of coolant comes out thats seems normal, but if a shitload of coolant bursts out then you have a headgasket problem.

[tinkerbell]

No quite right..

You need to follow Jimmys test as per this post

FYI

maybe tell Limo that, not me. :confused:

[Lukezen27]

maybe tell Limo that, not me. :confused:

Was pointing out you were correct and letting everyone know what/how to do it...

[tinkerbell]

ahhh, ICIC, sorry for miscomprehending... :thumbsup:

[JDM_VTIR]

my ones leaking as well. but its really weird. i fill it all up including the overflow bottle to the MAX point. i drive for awhile (20 min)...have a look to see if there are any leaks. nothing...

i pull to the side of the road. pop the hood to see the overflow bottle has been strangely filled all the way to the top. i get home and park it. i come out a maybe 3 hrs later to see that i have NOTHING in both radiator and overflow bottle...

what's the problem? is my radiator busted? need help...don't want to spend $220 for a new radiator.

[Lukezen27]

my ones leaking as well. but its really weird. i fill it all up including the overflow bottle to the MAX point. i drive for awhile (20 min)...have a look to see if there are any leaks. nothing...

i pull to the side of the road. pop the hood to see the overflow bottle has been strangely filled all the way to the top. i get home and park it. i come out a maybe 3 hrs later to see that i have NOTHING in both radiator and overflow bottle...

what's the problem? is my radiator busted? need help...don't want to spend $220 for a new radiator.

Ouch that doesn't sound good..

If it goes out that fast it must be somewhere, look harder

[JDM_VTIR]

i've already had a look under the radiator...i think it only starts to leak once the engine heats up. it doesn't leak when its cold/warm. i'm not really sure. HELP!

[Lukezen27]

i've already had a look under the radiator...i think it only starts to leak once the engine heats up. it doesn't leak when its cold/warm. i'm not really sure. HELP!

Have you tried at night? with a torch

Sometimes its easier to see the shiny coolant then...

There's not to many hoses from the motor to the radiator, only two..

Check all four hose clamps and make sure there all good and check the hoses for any cracks

[JDM_VTIR]

yea i might go buy new hoses 2moro and replace my bleed valve. so you rkn it's got nothing to do with the radiator itself?

bcoz from what i've seen from underneath the radiator with the engine on + coolant filled up. there are no signs of leakage...

[Lukezen27]

yea i might go buy new hoses 2moro and replace my bleed valve. so you rkn it's got nothing to do with the radiator itself?

bcoz from what i've seen from underneath the radiator with the engine on + coolant filled up. there are no signs of leakage...

Hm not sure man but is the radiator completely dry after 3 hours?

Checked your oil lately?

No coolant in there?

That's a lot of coolant disappearing into no where :( nothing on the ground near by or under the car?

[tinkerbell]

the bottom radiator tank can burst, at the seams, but only when hot...

look for seepage around the metal/plastic join part of the top and bottom radiator tanks...

[Lukezen27]

the bottom radiator tank can burst, at the seams, but only when hot...

look for seepage around the metal/plastic join part of the top and bottom radiator tanks...

Yeah that happen two radiator ago to me but you could see where the coolant when very clearly

[JDM_VTIR]

i changed my oil last week. i was parked at the shops the other day. i came back to the car and there was a massive puddle of coolant on the ground.

yea i'm pretty flabbergasted at how fast the coolant has just disappeared.

[Lukezen27]

i changed my oil last week. i was parked at the shops the other day. i came back to the car and there was a massive puddle of coolant on the ground.

yea i'm pretty flabbergasted at how fast the coolant has just disappeared.

IC

then as Tinker said check where the metal and plastic meet, that's where they go most times

I would rev ya car till it gets hot and have a mate check while you stay parked

[JDM_VTIR]

yea will do. if not i'm probably gona buy myself a new radiator. darn it.

[Lukezen27]

yea will do. if not i'm probably gona buy myself a new radiator. darn it.

Make sure you find what's leaking before you go buying shit though lol

[Limo]

yeh i just wanted to update you guys that the prob is fixed now, it turned out to be a faulty rad cap. just changed it with my mates civic to see if it would help and bang.. coolant levels were back to normal.

[Lukezen27]

yeh i just wanted to update you guys that the prob is fixed now, it turned out to be a faulty rad cap. just changed it with my mates civic to see if it would help and bang.. coolant levels were back to normal.

Nice one :)

[Limbo]

cool easily solved

[Lukezen27]

Overflow sprayed out again on the weekend..

Not much but enough to piss me off

OK

Can it be the pressure type radiator cap?

Or just the Overflow is not big enough for the larger size radiator?

What bigger Overflow bottles with fit on my EG ie Log or ITR?

Cheers

Luke

[Limbo]

i dun have a prob and i have same radiator core as you.
I can't see why you would have this issue

[fatboyz39]

Pressure test the system? Did you get it running hot?

[Lukezen27]

Pressure test the system? Did you get it running hot?

Nope temps are still spot on, needle exactly half way just like normal

I'm getting a leak down test at TODA this weekend..

Nothing happend on the tuning day at TODA two weeks ago and Adrian thrashed the shit out of her but the day was no where nere as hot..


i dun have a prob and i have same radiator core as you.
I can't see why you would have this issue

Your overflow bottle is bigger to start with?

[tinkerbell]

FWIW - i am running a smaller D15B overflow bottle with my PWR alloy radiator that i use for circuit racing.

did the overflow bottle over fill? or did it just spray everywhere?

[Limbo]

Quote:
Originally Posted by Limbo http://www.ozhonda.com/forum/images/aria/buttons/viewpost.gif (http://www.ozhonda.com/forum/showthread.php?p=1519830#post1519830)
i dun have a prob and i have same radiator core as you.
I can't see why you would have this issue

Your overflow bottle is bigger to start with?

shouldn't be its the stock one

[Lukezen27]

FWIW - i am running a smaller D15B overflow bottle with my PWR alloy radiator that i use for circuit racing.

did the overflow bottle over fill? or did it just spray everywhere?

Ovrefilled

[Benson]

don't sound good.......Check the rad cap?

[tinkerbell]

oh well, look at the leakdown tests for a headgasket issue...

but make sure your rad cap is working too!

[Lukezen27]

don't sound good.......Check the rad cap?

I hear that using a less perused cap helps the coolant go in and out better?


oh well, look at the leakdown tests for a headgasket issue...

but make sure your rad cap is working too!

Yeah Sat I should know..

[Limbo]

dude i'll prb drop by later in avo if you around

[Lukezen27]

dude i'll prb drop by later in avo if you around

Yeah sweet man

Coming over Manly way?

[fatboyz39]

bit of a drive from manly to toda LOL

use the recommend radiator cap.

[Lukezen27]

bit of a drive from manly to toda LOL

use the recommend radiator cap.

I don't think he knows what's he's in for lol

Also I can't make the radiator spray on queue and its only happened once since the new radiator install..on Sunday when it was very hot

[tinkerbell]

maybe re-bleed it then?

[bennjamin]

still an issue Luke ? Dam.

Consider the factors -

engine was "rebuilt" to OEM spec. Car was then boosted.Loose tolerence or issue in the build might be a reason for premature wear / possible HG issue ?

Get a
leakdown test already lol i told u 2 months ago :P

[Lukezen27]

still an issue Luke ? Dam.

Consider the factors -

engine was "rebuilt" to OEM spec. Car was then boosted.Loose tolerence or issue in the build might be a reason for premature wear / possible HG issue ?

Get a
leakdown test already lol i told u 2 months ago :P

Yeah I know ya told me but nothing happend till now lol

Books for leak down on the weekend

[fatboyz39]

I was right all along!! small leaking headgasket!@!!!!!!!!!

[Lukezen27]

I was right all along!! small leaking headgasket!@!!!!!!!!!

Looks that way Jimmy :(

Very small though lol

[bennjamin]

I was right all along!! small leaking headgasket!@!!!!!!!!!

omg i should quote as well !@!!!!!!!!!!!!! I was right all along too ! :p


Get it fixed and torqued for boost Luke ! There is no point asking Hannys for any compensation tho as they built for OEM spec:(

[Lukezen27]

omg i should quote as well !@!!!!!!!!!!!!! I was right all along too ! :p


Get it fixed and torqued for boost Luke ! There is no point asking Hannys for any compensation tho as they built for OEM spec:(

lol

Ben

You were right also

I hope :o

I guess we'll know once the heads off