I'm making ready for a one day round trip from Birmingham, AL to
Chattanooga, TN, all the while towing a trailer with my van on my new
Haynes hitch. I made a test run today and discovered with the trailer
hooked up, on grade under load I would hear a spark rattle. Anytime this
happens is not good, but on a long trip it can be death to an engine.

I need to adjust the timing before the journey but I have never done it
before. Did it on my old beetles and aircooled breadbox, but never on
this 2.1L WBX. Any hints, tips, watch-out-for's, or general commentary
..... all would be appreciated.

Thanks,

Regards,

John Rodgers
88 GL Driver