Also if you use the oem replacement tubing no clamps are needed it ain't coming off unless it rots off
Yes, and cable ties won't leak. My point was, just use cable ties and go ride. I just didn't want the OP to worry about finding shorter cable ties.True we're not landing on the moon, we're just trying to assemble something that won't leak oil into the bilge or overboard.
Ebay is another source for pinch type clamps on small diameter tubing, even lists hose pinchers similar to many factory types.
https://www.ebay.com/sch/i.html?_sacat=0&_nkw=pinch+hose+clamp&_frs=1
Yeah, I like your question b/c it's important.
Polyurethane is a type of rubber(elastomer), listed in this compatibility chart
http://www.engineeringtoolbox.com/polyurethane-chemical-resistance-d_1878.html
Nylon is a type of plastic listed in this compatibility chart:
http://www.plasticsintl.com/plastics_chemical_resistence_chart.html