Jump to content
SAU Community

Recommended Posts

Thanks for all the great replies.

I've personally not seen Water temp issues anywhere near as bad as mine while driving other R34's and other GTR's on the track, so I was suspecting there was a more fundamental issue with my car, such as a head gasket leak.

It sounds like a good idea to get the coolant checked to see if there's any combustion gases in it, so I'll enquire into getting that done.

The big aftermarket IC was on the car when I got it, but I have the original one so can arrange to get it put back on.

I'm definitely happy to install an Oil Cooler, I just wanted to make sure everything is working correctly.

Thanks for all the great replies.

I've personally not seen Water temp issues anywhere near as bad as mine while driving other R34's and other GTR's on the track, so I was suspecting there was a more fundamental issue with my car, such as a head gasket leak.

It sounds like a good idea to get the coolant checked to see if there's any combustion gases in it, so I'll enquire into getting that done.

The big aftermarket IC was on the car when I got it, but I have the original one so can arrange to get it put back on.

I'm definitely happy to install an Oil Cooler, I just wanted to make sure everything is working correctly.

A few simple, checks take 10 minutes;

Do you have to fill the radiator up with water often?

Is there rust on the spark plugs?

Are their bubbles appearing in the radiator header tank at idle?

Is there water in the oil?

Is there oil in the water?

If the answer is no to all of the above, then I doubt it's a head gasket.

Cheers

Gary

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

    • It is an absolute lottery. They can and have died at stock boost with low usage at all. The turbos are now anywhere up to 36 years old!
    • Huh, wonder why it blew then. I never really beat on the car THAT hard lol I dailyed it and the turbo blew after 6 months
    • That's odd, it works fine here. Try loading it on a different device or browser? It's Jack Phillips JDM, a Skyline wrecker in Victoria. Not the cheapest, but I have found them helpful to find obscure parts in AU. https://jpjdm.com/shop/index.php
    • Yeah. I second all of the above. The only way to see that sort of voltage is if something is generating it as a side effect of being f**ked up. The other thing you could do would be to put a load onto that 30V terminal, something like a brakelamp globe. See if it pulls the voltage away comepletely or if some or all of it stays there while loaded. Will give you something of an idea about how much danger it could cause.
    • I would say, you've got one hell of an underlying issue there. You're saying, coils were fully unplugged, and the fuse to that circuit was unplugged, and you measured 30v? Either something is giving you some WILD EMI, and that's an induced voltage, OR something is managing to backfeed, AND that something has problems. It could be something like the ECU if it takes power from there, and also gets power from another source IF there's an internal issue in the ECU. The way to check would be pull that fuse, unplug the coils, and then probe the ECU pins. However it could be something else doing it. Additionally, if it is something wired in, and that something is pulsing, IE a PWM circuit and it's an inductive load and doesnt have proper flyback protection, that would also do it. A possibility would be if you have something like a PWM fuel pump, it might be giving flyback voltages (dangerous to stuff!). I'd put the circuit back into its "broken" state, confirm the weird voltage is back, and then one by one unplug devices until that voltage disappears. That's a quick way to find an associated device. Otherwise I'd need to look at the wiring diagrams, and then understand any electrical mods done.   But you really should not be seeing the above issue, and really, it's indicating something is failing, and possibly why the fuse blew to begin with.
×
×
  • Create New...