Need Help

[rossco_01]

i have one question to ask can spark plugs be a cause of engine knock ?? if not what can cause engine knock ??

[TiTAN]

the main causes are too much ignition timing, very hot weather, and a shit batch of fuel.

[rossco_01]

ok fair enough it was a really hot day and the motor was running at around 85 C water temp it hit a nice 123 knock lvl whoo

i think i need a rebuild or new cams and stuff lol

[Bullet32]

Spark plugs can contribute to pinging or knocking, if you have the wrong heat range plugs they can increase the your chances of detonation - especially if you have a bad batch of fuel or the engine is running hot.

[GTRKat]

Fuuuck that's high! I get worried at 50!

[Guest]

what temperature should your car run at?

I've got 2 temperature gauges, one is on the outlet of the radiator, the other I believe is on the inlet.

The temperature gets up to 105 deg C, it's half-way on the factory gauge. I'm not loosing any coolant, I have new thermostat. In a cold but sunny day, driving on a highway, it gets to about 80 deg C on one gauge, and 105 deg C on the other. Is that normal? should it run cooler?

I found cheaper fuel makes your engine noisier, so i never put normal unleaded.

[rossco_01]

i use caltex 98 / it normal is about 69-70 C on a normal day but these hot weeks its been running hotter i might need to get some new plugs then yeah its normally around the 26-45 knock range and at times if the fuel is shit it peaks at 65 but this is the first time iv seen it get this high

[GTRKat]

Where I can I run of BP ultimate and it always stays within a good range, when it's hot gets up towards 40.

Had to put Shell 98 in it a few times and its been running well enough on that past week or two.

I don't like Caltex fuel, maybe its changed but had some bad experiences with my last Skyline running like a bitch on the stuff so I have never returned!

[rossco_01]

yeah fair enough i have had a bad experience with BP so each to there own