Oct 11, 2007 #16 icanfixall Official GMM hand model Joined Apr 10, 2005 Posts 25,858 Reaction score 673 Location West coast The bundle flow is from the back of the block towards the front. I think you can use a 22 cal bore cleaning copper brush to clean the tubes out.
The bundle flow is from the back of the block towards the front. I think you can use a 22 cal bore cleaning copper brush to clean the tubes out.