overheating issues

[Alpineandy]

I don't have a GTA/A610, so sorry if this is a silly question, but doesn't the GTA have a Rad bleed and a heater bleed

[BIG_MVS]

Dell Boy had some he paid £30 each for which I assume he bought on behalf of the "club" so being a member Juzz he should do you a deal

Failing that...:

http://www.cqout.com/item.asp?id=2404496

Nice one, cheers for the link Martin.

AlpineAndy - there's definitely only the two bleed nipples, one at the rad and one at the thermostat housing, I've got the Renault workshop manual with a diagram showing the whole system.

buyparts still list it for the 25t C'mon now Juzz ! wake up lad !
http://www.buypartsby.co.uk/water-pump- ... eng=2.5000

Justin, A little tip if you have not thought of it before..... when you get around to replacing the pump, save the coolant that you have just filled up with by draining the heads and pump via the rad bleed tube.

I know GTA owners are tight but that's a new level

buyparts still list it for the 25t C'mon now Juzz ! wake up lad !
http://www.buypartsby.co.uk/water-pump- ... eng=2.5000

Doh! I forgot to check for R25

Cheers Lee.

[stephendell]

Cheapos are all long gone (there were only 3 or 4) but have the unipart/qh ones for £70.

I do know someone paid close to £200 for one recently

Espace ones will fit .You have to alter the sensor port on the LHS .Chop it short and then tap it m18 to suit the GTA one .

I've ordered the R25 turbo one from buypartsby.

Fitted the new water pump today. Couldn't see much wrong with the old one apart from some free-play in the pulley. The impeller looked fine though. Anyway, fitted the new one as the old one was noisy, probably due to the play in it. I took JohnC's advise and bled the system whilst the rear was still on the ramps, so the back of the car was slightly elevated to aid bleeding.
I started it up and ran it at a fast idle for a few minutes. Took much longer this time for everything to get hot which I took as a good sign. The front rad hoses got hot this time, the stat opened around the 90 mark on the temp gauge, maybe just before the 90 mark, which seems spot on as the stat is rated at 88 deg. I continued to run it, it seemed to take an age - again, a good sign - but eventually the rad fan kicked in. The temp gauge didn't go anywhere near the red and the cabin heater was nice and toasty. No blowing cold air. Everything is looking good so far. I'll check the coolant level when it's nice and cold in the morning and give it a small run to check it's still ok.
I can only guess I had an air lock somewhere as the old pump still seemed to have a decent working impeller despite the play in it.
I did notice though, while I had all the hoses off, the bottom hose was routed wrong. It was routed over the HT leads rail that runs across the rear of the engine and which bolts to the back of the water pump. So the bottom hose was sat too high relative to the water pump and thermostat housing. Maybe this has prevented proper bleeding of the system in the past and been the cause of the problem? It was also having the effect of pushing the top hose up against the throttle cable lever and causing my throttle to stick occasionally. So I re-routed it correctly under the HT leads rail when I re-fitted it to the pump.
Don't know why I hadn't spotted this before. I actually replaced the bottom hose myself last year but just routed it the same way as the old one I removed, assuming that would be correct. I did have both hoses replaced by a garage some years ago and the cylinder head gaskets done by another garage a few years ago too, so I'm guessing one of these occasions is when the bottom hose was routed the wrong way and I've just copied it since until I noticed the error today. It wasn't me!
Anyway, hopefully it's sorted now. Thanks for everyone's help and advice.

Have a good run tomorrow.....

Looking good Justin .....but don`t be too surprised if you have to add coolant, as there is always likely to be a bit of air in the system after you refill it... and you may have to top up a couple of times also before the level stabilizes.
Best of luck on the run tomorrow