[VR V6] changing leads, plugs and radiator

[nathanVY]

hey so, planning to change the radiator, leads and plugs and thermostat on my VR tomorrow. never done it before but it looks easy enough, anything I should know? tips, things not to do?

[social]

remove plugs and leads one by one and swap over and as for removing the rediator, remove the bottom hose first and allow to empty then undo the top hose and take out and hose out

[nathanVY]

yeah ill give the engine a bit of a flush too (cooling part), cos they old radiators a bit rusty.
how do I get plugs out?

[wortus]

It's a good idea to draw yourself a picture of which spark plug goes to which coil terminal and keep it for future reference. Be careful pulling the leads off as they can break easy, pull them by the thick part right near the spark plugs. You need to use a socket set with the proper spark plug socket and don't over tighten. I used a torque wrench to do my plugs up on my ecotech.
Given the coolant is a bit rusty you might want to use a radiator flush fluid before you drop the coolant. Engine block drain plugs from memory are not so easy to get out you can disconnect the heater hoses and flush it all out with a hose and refill the system with clean water and let it circulate for a while and when cool empty again and reflush. If it's still dirty do it again.
When you add the new coolant firstly make sure you have got at least 5 litres of water out of the system and add the concentrate then top it up. Remember to bleed the system properly. I use the Nulon Long Life Coolant as it is a quality product, says it lasts longer and you don't need to use the pellets unless a minor leak shows up afterwards. Coolant shoudl be around 50% to a max of 60%.

[v6lux]

It's a good idea to draw yourself a picture of which spark plug goes to which coil terminal and keep it for future reference

Like in this picture;