Jump to content
SAU Community

Recommended Posts

Hey guys.. couldnt find the tech help section.. so i figured this would be the best spot.. kinda..

I have an R34 GTT, recently i thought my water pump had died on me as i was getting no water flow through the top radiator hose, the top hose would be hot, the bottom hose would be cold.

So i took out the thermostat all together and tried again.. yet again no water flow.. so i got a hose stuck it in the bottom hose, water comes out the top no problem, vica versa still OK.

Swapped the water pump + thermostat on the weekend to an Rb30 item + Nismo thermostat, while at it i swapped my rad hoses to Silicon items aswell.. (mate told me my factory water pump still looked OK, it only had the slightest play in it, blades all ok)

Now by no means am I a mechanic, so i could be missing the most BASIC thing in the world. I've filled it up.. and yet again it seems like no flow. I idle the car for about 10 minutes and you can feel the pressure building in the hoses (as normal.. kinda..) and then the rad cap opens up to let the boiling water out of the overflow hose.. obviously at this point i turn the car off and let it cool down..

PLEEEEASE help me.. so confused and have no idea or reason i can think of as to why its overheating SO easily.

Also, if anyone knows, does ALL the water from the engine HAVE to pass through the turbo water lines, mine look abit small (Apexi turbo swap) and if it has to all go through the turbo i think that could POSSIBLY be the issue..

Edited by illusiVe

Sounds like the Radiator is blocked. Actually, it seems obvious. If you have changed everything bar the radiator and its still doing it...

PS Nismo thermostat is only causing you more harm than good.

radiator seems to hold pressure no problems.. its only when the car is getting damn hot im getting steam outta the overflow hose.. at which point i know its too hot..

if it is the radiator it'd have to be a DAMN tiny hole.. cause i dont see any steam ever coming out of it itself, nor water

i can get water through the radiator no problems with just pouring water in the top pipe, it comes straight out the bottom pipe of the radiator.. imho it also wouldnt explain why i dont get water coming out of my top radiator hose =(

ill still doublecheck + swap the radiator tonite.

Edited by illusiVe

It's not going to be the turbo water lines.

Now what temp are you getting on the cluster? Is it actually moving off half way and towards hot? You might still have a bad radiator. Just because you put water in the top and it comes out the bottom doesn't indicate it's good unfortunately, the core can be flowing poorly and water will still flow out OK. Have you been running coolant in it?

I would remove the radiator and take it to a radiator place to be check and cleaned. Failing that you may need to look at a possible head gasket problem, of which the symtoms can be found on here by searching.

Get the rad properly checked out first but, re-fit it then move on from there.

thanks james.

yeh the temp cluster moves up towards high.. but in my 3 years of owning it until this issue happen'd i had never seen it go past half way. I have always ran coolant in the system, however since the issue im just throwing water in until i can fix these stupid gremlins.

Can you just throw me a basic reason/s as to why it could be headgasket related?.. just cant make sense from it.

after talking to a mate, apparently RB's have a bleed valve somewhere near the intake mani? (plz confirm) which u need to open to get all the air out...

i have no idea where this is or what it looks like (i know what an intake manifold is though!) if anyone knows or can pics me.. would be HUUUUUUGEly appreciated.

  • 4 months later...

old thread but issue continues..

ill check for the second one tomorrow.. going to start from scratch

1)clean out engine water lines, thermostat+housing,waterpump+rad

2)redo thermostat + waterpump, wait for goop to sealup

3)bolt shit back together

4)fill rad with fresh coolant.

5)bleed system + test

anything else i may be missing?

  • 4 weeks later...

mate i got the exact same problem.

tried all the stuff you have....

i just keep a close eye on the temperature and if if gets too hot when im in traffic i just give it some revs to get the water flowing...

pretty lame but im to lazy to figure it out lol

  • 1 month later...

had a water leak at the back of the block, having it fixed and new lines made up.

battery check yours =)

remember stock gauge doesnt go up until its PASSED a safe temperature for awhile..

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Even more fun, leave all the ADAS stuff plugged in, but in different locations, hopefully avoid any codes!   And honestly, all these new cars with their weird electronics. Pull all the electronics out Duncan, and just shove an aftermarket ECU and if needed a trans controller in, along with a PDM. Make it run basic but race car styled!
    • To follow up a question from earlier too since I had the front bar off again (fking!) This is what is between the bumper and the drivers side wheel And this is the navigator side, only one thing but its a biggy! So basically....no putting coolers in the wheel arches without a lot of moving other stuff. Assuming I move to properly race prepping this car I'll take that job on and see how the computers respond to removing a whole bunch of ADAS modules
    • So I prepped the car for another track day on Wednesday (will be interesting to see coolant temps post flushing out and the larger reservoir, with a forecast of 3-14 being 20o cooler than last time I took it out). Couple of things to mention; since I am just driving the car and not taking a support vehicle, I took the rear seats out and just loaded the back up Team Trackday style. Look at all that space! To cover off removing the rear seat....it is weird (note the hybrid is probably different because it wouldn't have folding rear seats) Basically, you remove the lower seat base, very similar to a r series but it is a clip that pulls forward to release the base rather than it being bolted down. Easy Then, you need to remove the side section of the rear seat on each side. There is a 14mm head nut at the bottom of the side piece, the it slides upwards off a hook at the top to release; you also need to unhook the seatbelt from the loop at the top. Then the centre piece is weird. You need to release/fold the seats forward with the tab in the boot on each side From there, there are 2,x12mm headed bolts holding the rear of each seat to the folding bracket, under the trim between the rear seat and the boot (4x christmas tree clips there, they suck). The seat is out but you can see where the bolts attach to the bracket
    • As discussed in the previous post, the bushes in the 110 needed replacing. I took this opportunity to replace the castor bushes, the front lower control arm, lower the car and get the alignment dialled in with new tyres. I took it down to Alignment Motorsports on the GC to get this work done and also get more out of the Shockworks as I felt like I wasn't getting the full use out of them.  To cut a very long story short, it ended up being the case the passenger side castor arm wouldn't accept the brand new bush as the sleeve had worn badly enough to the point you could push the new bush in by hand and completely through. Trying a pair of TRD bushes didn't fix the issue either (I had originally gone with Hardrace bushes). We needed to urgently source another castor arm, and thankfully this was sourced and the guys at the shop worked on my car until 7pm on a Saturday to get everything done. The car rides a lot nicer now with the suspension dialled in properly. Lowered the car a little as well to suit the lower profile front tyres, and just bring the car down generally. Eternally thankful for the guys down at the shop to get the car sorted, we both pulled big favours from our contacts to get it done on the Saturday.  Also plugged in the new Stedi foglights into the S15, and even from a quick test in the garage I'm keen to see how they look out on the road. I had some concerns about the length of the LED body and whether it'd fit in the foglight housing but it's fine.  I've got a small window coming up next month where I'll likely get a little paint work done on the 110 to remove the rear wing, add a boot wing and roof wing, get the side skirt fixed up and colour match the little panel on the tail lights so that I can install some badges that I've kept in storage. I'm also tempted to put in a new pair of headlights on the 110.  Until then, here's some more pictures from Easter this year. 
    • I would put a fuel pressure gauge between the filter and the fuel rail, see if it's maintaining good fuel pressure at idle going up to the point when it stalls. Do you see any strange behavior in commanded fuel leading up to the point when it stalls? You might have to start going through the service manual and doing a long list of sensor tests if it's not the fuel system for whatever reason.
×
×
  • Create New...