I was advised to clean an Ithaca 59 with brake cleaner after removing the wood from the gun because perhaps it changes needs internal cleaning preventing proper ejection. It seems that I have read someplace that disc brake cleaner will damage paint. On the 49 the receiver is anodized aluminum alloy, not really paint and the barrel is blued. So, my question is...what are the precautions to take using brake cleaner fluid to de-gunk the guts of a gun. And...also...do I pour the stuff into the gun and let it run through and then let it dry and re-oil or..????? Thanks much for your help. I love this forum.