The 75 and ZT Owners Club Forums - View Single Post - pressure in header tank when engine is stone cold

racing green rover · 8th May 2015, 13:43

Hi Iv had a problem with water loss and slight misfire when engine is cold whet I press the accelerator quick I was thinking inlet manifold gasket was leaking first but when I unscrewed the header tank cap this morning there was a hiss and the coolant was on MAX this time I'm wondering if the pressure has raised the level when cold the engine doesn't overheat it usually reads around 88 degrees when running car otherwise runs fine apart from above problems the oil and water are clean no sign of any mixing I can't smell any exhaust gasses in the header tank either
car in question is a 1.8
Thanks

8th May 2015, 13:43	#1
racing green rover Avid contributor MG ZT Join Date: Sep 2014 Location: Westhoughton Bolton Posts: 233 Thanks: 153 Thanked 16 Times in 14 Posts	pressure in header tank when engine is stone cold Hi Iv had a problem with water loss and slight misfire when engine is cold whet I press the accelerator quick I was thinking inlet manifold gasket was leaking first but when I unscrewed the header tank cap this morning there was a hiss and the coolant was on MAX this time I'm wondering if the pressure has raised the level when cold the engine doesn't overheat it usually reads around 88 degrees when running car otherwise runs fine apart from above problems the oil and water are clean no sign of any mixing I can't smell any exhaust gasses in the header tank either car in question is a 1.8 Thanks Last edited by racing green rover; 8th May 2015 at 13:46..