Quote Originally Posted by NewPaul View Post
The Slim Jim hand pumps I’ve seen wouldn’t be giving much pressure output I reckon so probably only 4 or 5 pumps on that ?? So, a stirrup pump.... maybe only a stroke or two ??
From what I've been told it only a few pumps, too much and you wont be able to cock it or you'll damaged it. Just a little at a time and test it over a chrono until you're at your required ft lbs.