Bursting Coolant Hoses, RB26DETT!!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Wongger · 10-23-2010, 07:50 AM

Alright, so ive been helping my friend work on his skyline gtr. It continually bursts coolant lines. We have pulled the starter 3 times to replace hoses within the last 2 weeks.

Alright what happens. So after we fix the hoses we fill the car with water, get air out, let the car get to Operating temp, then put the rad cap on. It seems when we put the rad cap on the problems begins. Once the rad cap is on the hoses start to leak, then some burst. I realized the hoses are old and need to be replaced, but all at the same time? Even some of the new ones have been leaking.

My thought. Im thinking the compression of the cylinders is going into the coolant system due to the headgasket leaking.... Is this possible? The built up pressure with the radcap on causes the coolant hoses to burst?

Any other help is much appreciated, this is so annoying.

10-23-2010, 07:50 AM	#1
Wongger Zilvia Member Join Date: Oct 2008 Location: ONT Canada Age: 35 Posts: 153 Trader Rating: (0) Feedback Score: 0 reviews	Bursting Coolant Hoses, RB26DETT!!! Alright, so ive been helping my friend work on his skyline gtr. It continually bursts coolant lines. We have pulled the starter 3 times to replace hoses within the last 2 weeks. Alright what happens. So after we fix the hoses we fill the car with water, get air out, let the car get to Operating temp, then put the rad cap on. It seems when we put the rad cap on the problems begins. Once the rad cap is on the hoses start to leak, then some burst. I realized the hoses are old and need to be replaced, but all at the same time? Even some of the new ones have been leaking. My thought. Im thinking the compression of the cylinders is going into the coolant system due to the headgasket leaking.... Is this possible? The built up pressure with the radcap on causes the coolant hoses to burst? Any other help is much appreciated, this is so annoying.