clueless 3,335 #1 Posted August 31 Did the mid '70s C-120 hydro have the release valve hydro, it has the manual lift. Share this post Link to post Share on other sites
ebinmaine 76,137 #2 Posted August 31 Yes. AFAIK all the Sundstrand had the tow valve 1 Share this post Link to post Share on other sites
pfrederi 19,375 #3 Posted August 31 Location changed over time but they all have one 2 Share this post Link to post Share on other sites
John c 132 #4 Posted November 29 How much resistance should you feel when turning one of these valves ?? hand tight? pliers, wrench needed ? I'm getting into a B100 auto right now and I'm curious what I'm going to encounter Share this post Link to post Share on other sites
Bar Nuthin 1,933 #5 Posted November 30 (edited) 5 hours ago, John c said: How much resistance should you feel when turning one of these valves ?? hand tight? pliers, wrench needed ? I'm getting into a B100 auto right now and I'm curious what I'm going to encounter I think a B-100 will either require a screwdriver or a 3/8" wrench. Some of them can be stuck pretty tight the first time you try to open them (from non-use, I imagine). If so, work it back and forth little by little until it frees up. I've found that moderately snug is sufficient when closing it for use. One turn counterclockwise for freewheel. Edited November 30 by Bar Nuthin 1 Share this post Link to post Share on other sites
