Post by
dontbugme »
https://forums.nicoclub.com/dontbugme-u28879.html
Thu May 11, 2006 1:51 pm
These are called pintle caps, BTW. They do little more than to protect the expensive pintle during handling and keep the lower o-ring from falling into the manifold, on some designs, when you pull them out. IMHO you can run with or w/o them as they have no effect on spray pattern or delivery. At the most, they may insulate the pintle from the intake temps but if steel can't handle the temp, I don't see how plastic will - it just doesn't get that hot in their location.