I am having trouble getting the upper pushrod tube seals on my 73 T100 motor to go into the proper position. They basically twist, resist, tear and squish. Any suggestions? The ones I am using are white rubber-(Viton?)
Are these "white" ones square- or oblong-section? If so, they're the wrong ones for a '73 - check the parts book
. Triumph had several goes at trying to make the prt seal properly, and the head, tappet blocks, tubes and seals aren't always compatible, so you need to make sure all the bike's bits are from the same year, or you've likely got two hopes of making your bike leak-free.
Btw, if "P-80" or "glycerine" aren't available, cheap spray-on furniture polish makes a good lube. :bigt