Author Topic: too much pressure in coolant?? 1.8 digi  (Read 2169 times)

Offline rubjonny

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Re: too much pressure in coolant?? 1.8 digi
« Reply #10 on: 29 October 2008, 12:44 »
no need to split gearbox from engine to do release bearing, its in the end behind the green cap, doable when the engine is still in the car.  Arse about face setup in a MK2!

edit: just to clarify this is on 1.6-1.8 8v/16v engines w/ manual box.  1.0-1.3 and G60 have the release bearing inside the gearbox bellhousing so box off as you say :)
« Last Edit: 29 October 2008, 12:59 by rubjonny »
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Offline Donuts

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Re: release bearing
« Reply #11 on: 03 November 2008, 14:32 »
no need to split gearbox from engine to do release bearing, its in the end behind the green cap, doable when the engine is still in the car.  Arse about face setup in a MK2!

edit: just to clarify this is on 1.6-1.8 8v/16v engines w/ manual box.  1.0-1.3 and G60 have the release bearing inside the gearbox bellhousing so box off as you say :)
Thanks for the help.
Is this the correct release bearing? http://www.performance-cafe.com/product_info.php?cPath=7_167&products_id=1293

Offline rubjonny

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Re: too much pressure in coolant?? 1.8 digi
« Reply #12 on: 03 November 2008, 16:12 »
yep looks like it!  you also need the green end cap, I had a quick look on that site but i coulsnt spot it.  if you're really carefull you might get rthe old one off in a state to be re-used, but they're so cheap it isnt really worth the effort/risk!
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Offline Donuts

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Re: too much pressure in coolant?? 1.8 digi
« Reply #13 on: 13 January 2009, 22:29 »
I have a persistent leak from the union of the lower rad hose and the radiator itself. It is intermittent.
Originally I thought that the leak was from the radiator, which I replaced. I have also replaced the header tank and the tank cap. I also replaced the original rad hose clip with a jubilee clip. It still leaks. Hoses get quite hard - maybe head gasket is leaking gas into the system, over-pressurising it. car performs very well. Engine does not consume oil or coolant. No coolant in oil, and no oil in coolant.
What do you reckon? I am thinking of changing the lowere rad hose itself. If it is distorted somehow, it could leak undo pressure and/or heat. Or maybe the head gasket is on its way out. Suggestions very much appreciated!

I know this is an old thread but I thought that someone might appreciate the update:

I removed the matrix bypass valves...problem solved. There was an airlock in the system