Having had some starting and idle problems with my van I am going
through and cleaning all the ground connections in the van.  Does
anyone have a sure fire method for cleaning the threaded bolt holes
were the ground screws go in.  I tried rolling up some emery cloth and
just turing that in the hole but i cant see that that works very well.
maybe running a threading tap might help but then there is the risk of
crossing threads.  Any got any other methods.

Tim
1990 Multivan