Hodge's new 4.2

[gubigfish]

You haven't done something like knocked the caps on the overflow and released the seal just enough?

[Hodge]

You haven't done something like knocked the caps on the overflow and released the seal just enough?

I am hoping it is something as simple as this. Bleed system again should solve it as well as some new caps while I'm at it... Will have a crack.

Even so, if I did... Where did the bit of coolant go. I understand the pressure cap on the header tank has two functions it is a pressure cap but it also allows the radiator to suck back the expanded coolant back as it cools to maintain a filled up airless system.

I'm always a bit cautious on bleeding this system.

[mudski]

Sorry i didnt answer your text earlier. Phone went flat as soon as i read the message. So ill post here so i dont forget. Ill be home late next week....

Sent from my GT-N7105T using Tapatalk

[Hodge]

Picked up some caps before. Mr Nissan knows how to hit the wallet that's for sure.



Sent from S5

[nissannewby]

Should have gotten them from overseas.

Your temp differences are not a worry. The warmer weather could be changing the resistance of the wire altering the readout ever so slightly. I dont those temp gauges would be that accurate.

As for bleeding these systems they are dead simple compared to the earlier ones. Fill the rad. The fill the header tank. Take for a quick drve and top up if required.

[Hodge]

Should have gotten them from overseas.

Your temp differences are not a worry. The warmer weather could be changing the resistance of the wire altering the readout ever so slightly. I dont those temp gauges would be that accurate.

As for bleeding these systems they are dead simple compared to the earlier ones. Fill the rad. The fill the header tank. Take for a quick drve and top up if required.

Thanks Mat. I could have gotten them a lot cheaper even from Mark but he is on holidays. I needed them before MOnday morning.
As for the temps, I'm confident its getting worse. It's 22C here, has been cool all day. Stopped and sitting at lights after just cruising on a main rd @ 60kmh. Gauge reads 77 and begins climbing, all the way to 83 and then slowly comes down. The temps have never done anything remotely like this before even at 27-28C + ambient, let alone on a cool 22C day. Something is definitely up.


As for bleeding, are you saying these are self bleeding? I thought I would have had to do the coke bottle uphill trick.

[nissannewby]

Yeah they are self bleeding. The header tank is the same as putting a Coke bottle in the rad. Very simple mate they are a much better arrangement.

[Hodge]

Yeah they are self bleeding. The header tank is the same as putting a Coke bottle in the rad. Very simple mate they are a much better arrangement.

Ok I see. So in theory, even I did get some air into the system by chance, it would have bled itself out by now...

[Hodge]

Had the cooling system pressure checked . Held full pressure for 3 hours not even half a psi lost. So no leaks.
Will just monitor it and act if it gets worse . Inconclusive result.

Sent from S5

[Hodge]

Re: My temps overall being few degrees higher.
Just had another thought ... Since I re-located my boost controller, literally a day before this occurrence began , I may or may not have knocked the setting slightly? @nissannewby
Mat, does altering boost here have any influence on fuel? So lowering boost it lowers fuel and vice versa ?
I don't fully understand how the whole boost vs. IP system works.
The reason I'm asking is last 2 tanks I have got worse fuel economy too... So....
What I am getting at is, if, say fuel was increased a tad, therefore more fuel burnt, higher temps ? Just a brainstorm thought.