Jump to content
SAU Community

Recommended Posts

ever since iv had my car (18months now i think :)) the thermo fan on front of the radiator, i dont think its ever turned on. im guessing its linked to the A/C? how much are new ones...and is it worth getting a second hand one or am i better off buying a brand new one. im wanting to retrofit one from a VX SS commodore, cos i know they move alot of air :(

Link to comment
https://www.sau.com.au/forums/topic/283174-thermo/
Share on other sites

pretty sure its more of an emergency fan, IE if it gets hotter than a set temp it will kick in.

The aircon wouldnt need it, see the MASSIVE clutch fan sitting there? :mrt: put your hand infront of the radiator when the cars inside and feel how much air rushes past your hand heh

Link to comment
https://www.sau.com.au/forums/topic/283174-thermo/#findComment-4765370
Share on other sites

pretty sure its more of an emergency fan, IE if it gets hotter than a set temp it will kick in.

The aircon wouldnt need it, see the MASSIVE clutch fan sitting there? :mrt: put your hand infront of the radiator when the cars inside and feel how much air rushes past your hand heh

guy is right. I remember waaaaaaay back when we had this discussion. That fan will only kick in if things get heated. More so in summer. In winter you will not see it on.

Link to comment
https://www.sau.com.au/forums/topic/283174-thermo/#findComment-4765622
Share on other sites

what's the normal water temp for an rb25det/neo with all thermos and radiator working properly ? I just recently hooked up a new water temp gauge (aftermarket) to my radiator hose (grounded and insulated) and it shows temps never higher than 86 degrees or so.

BUT the ecu (using consult) shows up to 96 degrees.

An auto sparky I spoke to said to me he's seen a problem like this once (not on a skyline) and it turned out to be an ECU problem ..the battery inside the ecu was dead and reason why it was showing wrong voltages for the factory water temp sensor. Once he changed the battery inside the ecu, that fixed it. Any ideas if Skyline ecu's have batteries inside of them ?

Link to comment
https://www.sau.com.au/forums/topic/283174-thermo/#findComment-4776203
Share on other sites

I guess its just as likely or more likely that I have crap clogging my 10 year old factory radiator/hoses or perhaps even the thermostat sticking a bit... whats the most likely? Where to start? Hate spending time and money and getting 0 results (like a $200 genuine o2 sensor that brough 0% fuel economy improvements)

Link to comment
https://www.sau.com.au/forums/topic/283174-thermo/#findComment-4777525
Share on other sites

I guess its just as likely or more likely that I have crap clogging my 10 year old factory radiator/hoses or perhaps even the thermostat sticking a bit... whats the most likely? Where to start? Hate spending time and money and getting 0 results (like a $200 genuine o2 sensor that brough 0% fuel economy improvements)

Id say thats a good start...

If it was me, i would be doing a full system flush out. Drain the radiator and overflow, and if you can, find the bolt on the block to drain the block too. (there ARE pictures somewhere on SAU.. someone might have them handy.) I think it could also possibly be the water drain from the turbo?? Not sure.

Run some of that anti gunk crap through the system, flush it again, new thermostat would be a great investment, and if you want a new radiator cap too. New coolant, fresh water and i guess you could throw some water wetter in there if you wanted too.

Link to comment
https://www.sau.com.au/forums/topic/283174-thermo/#findComment-4777630
Share on other sites

i have never found those gunk remover stuff to be all that effective. the best way is to get it professionally cleaned as they actually remove the end tanks to do it.

that said, there is no garantee that this will do anything (although certainly not a bad thing to have done anyway). but the point is that you said that your aftermarket gauge is reading different to the ecu. this means that 1 of the gauges is reading incorrectly. where did you mount the sensor for the new gauge?

edit: if you do decide to get a new radiator cap, i wouldn't go any higher pressure than stock, for the simple fact that they are designed to release pressure at a certain level. if you go a higher pressure, the pressure it releases at may be higher than what other components in the cooling system can handle, so you may end up blowing a hose or an end tank of the radiator.

Link to comment
https://www.sau.com.au/forums/topic/283174-thermo/#findComment-4777876
Share on other sites

instead of mucking around with the puny factory radiator that may be clogged and need recon I was thinking of getting something aftermarket when i spotted this for only $199

has anyone used these FLYN 40mm dual core radiators ? Are they any good? I really don't wanna put some yumcha item that's gonna work like shit and overheat my engine http://cgi.ebay.com.au/FLYN-RADIATOR-FOR-R...alenotsupported

Link to comment
https://www.sau.com.au/forums/topic/283174-thermo/#findComment-4778228
Share on other sites

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


  • Latest Posts

    • Thanks for that, I'll check it all out. I can always do the brakes last anyway if its a problem.  The 16's are super cool, if they do fit I'll cruise around with them for a bit.  
    • Well, that's kinda the point. The calipers might interfere with the inside of the barrels 16" rims are only about 14" inside the barrels, which is ~350mm, and 334mm rotors only leave about 8mm outboard for the caliper before you get to 350, And.... that;s not gunna be enough. If the rims have a larger ID than that, you might sneak it in. I'd be putting a measuring stick inside the wheel and eyeballing the extra required for the caliper outboard of the rotor before committing to bolting it all on.
    • OK, so again it has been a bit of a break but it was around researching what had been done since I didn't have access to Neil's records and not everything is obvious without pulling stuff apart. Happily the guy who assembled the engine had kept reasonable records, so we now know the final spec is: Bottom end: Standard block and crank Ross 86.5mm forgies, 9:1 compression Spool forged rods Standard main bolts Oil pump Spool billet gears in standard housing Aeroflow extended and baffled sump Head Freshly rebuilt standard head with new 80lb valve springs Mild porting/port match Head oil feed restrictor VCT disabled Tighe 805C reground cams (255 duration, 8.93 lift)  Adjustable cam gears on inlet/exhaust Standard head bolts, gasket not confirmed but assumed MLS External 555cc Nismo injectors Z32 AFM Bosch 023 Intank fuel pump Garret 2871 (factory housings and manifold) Hypertune FFP plenum with standard throttle   Time to book in a trip to Unigroup
    • I forgot about my shiny new plates!
    • Well, apparently they do fit, however this wont be a problem if not because the car will be stationary while i do the suspension work. I was just going to use the 16's to roll the old girl around if I needed to. I just need to get the E90 back on the road first. Yes! I'm a believer! 🙌 So, I contacted them because the site kinda sucks and I was really confused about what I'd need. They put together a package for me and because I was spraying all the seat surfaces and not doing spot fixes I decided not to send them a headrest to colour match, I just used their colour on file (and it was spot on).  I got some heavy duty cleaner, 1L of colour, a small bottle of dye hardener and a small bottle of the dye top coat. I also got a spray gun as I needed a larger nozzle than the gun I had and it was only $40 extra. From memory the total was ~$450 ish. Its not cheap but the result is awesome. They did add repair bits and pieces to the quote originally and the cost came down significantly when I said I didn't need any repair products. I did it over a weekend. The only issues I had were my own; I forgot to mix the hardener into the dye two coats but I had enough dye for 2 more coats with the hardener. I also just used up all the dye because why not and i rushed the last coat which gave me some runs. Thankfully the runs are under the headrests. The gun pattern wasn't great, very round and would have been better if it was a line. It made it a little tricky to get consistent coverage and I think having done the extra coats probably helped conceal any coverage issues. I contacted them again a few months later so I could get our X5 done (who the f**k thought white leather was a good idea for a family car?!) and they said they had some training to do in Sydney and I could get a reduced rate on the leather fix in the X5 if I let them demo their product on our car. So I agreed. When I took Bec in the E39 to pick it up, I showed them the job I'd done in my car and they were all (students included) really impressed. Note that they said the runs I created could be fixed easily at the time with a brush or an air compressor gun. So, now with the two cars done I can absolutely recommend Colourlock.  I'll take pics of both interiors and create a new thread.
×
×
  • Create New...