Jellybean Posted December 30, 2010 Share Posted December 30, 2010 Was just checking the Rad level last nite and seen Grit is in the top after I took off the Rad cap, its a copper rad (no name on it) Will this kill the water pump? Link to comment Share on other sites More sharing options...
Terminator Posted December 30, 2010 Share Posted December 30, 2010 (edited) Never heard of a copper rad being made for the MKIV!! Are you sure it is grit? or is it calcium deposits? Any solids in the water system are best removed by draining the whole system pressure flushing. Edited December 30, 2010 by Terminator (see edit history) Link to comment Share on other sites More sharing options...
Guigsy Posted December 30, 2010 Share Posted December 30, 2010 I'm pretty sure mine is copper. Thaught the stock ones were 2 Link to comment Share on other sites More sharing options...
Terminator Posted December 30, 2010 Share Posted December 30, 2010 Oh sorry my mistake. Not seen a stock rad for a while. Link to comment Share on other sites More sharing options...
Guigsy Posted December 31, 2010 Share Posted December 31, 2010 I'm just going off what I was told. I have no proof Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 31, 2010 Share Posted December 31, 2010 Some stock rads were copper cored, especially early TT ones. The grit is probably radiator sealant like Barr's Leaks. There is a sediment that goes around the system, hopefully plugging any leaks. Downside is it sometimes bungs up steam holes in head gaskets, and heater matrices. Barrs put a warning on the stuff to NOT use it in Honda / Rover V6 engines as it blocked steam holes and could cause overheating. Link to comment Share on other sites More sharing options...
Jellybean Posted December 31, 2010 Author Share Posted December 31, 2010 Thanks, she needs a flush so will do it as soon as the weather picks up Link to comment Share on other sites More sharing options...
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