moe1965 737 #1 Posted October 3, 2023 I have a b100 that I'm trying to get the tow valve to back out in case I ever need to use it. The PO must have tried to do the same thing and you can no longer use a screwdriver to turn it because one of the ears is broken off. I have put penetrating oil and some heat from a hand held torch but didn't go crazy with heat and used a small pipe wrench and still can't get it to back out. . I'm afraid to heat it up to much because I don't want to damage any seals or anything inside. Any suggestions thanks in advance Share this post Link to post Share on other sites
Ed Kennell 38,151 #2 Posted October 3, 2023 I have used the pipe wrench to loosen a few. Did you try alternating closing and opening? 1 Share this post Link to post Share on other sites
squonk 41,076 #3 Posted October 3, 2023 Soak with penetrant. 8" Rigid brand pipe wrench. 2 Share this post Link to post Share on other sites
peter lena 8,616 #4 Posted October 3, 2023 @moe1965 have any steel pipe , 1, 1/2 " about 3, 4 ft. long ? take advantage of solid movement point , like a 14 / 18 " pipe wrench with 2 / 3 ft. of leverage on that . get a very solid bite on that , so every bit of leverage advantage , is working for you , also like KROIL for lube creep . actually that solid mount / start point , will give a longer leverage advantage , pete Share this post Link to post Share on other sites
moe1965 737 #5 Posted October 3, 2023 I'll give it another try I'm just afraid of snapping it off I'll give it a few days of spraying Krols on it and giving it time. Also when I get it to move can I take it out completely without springs and ball bearings flying out. I'm assuming it's like a on off fuel valve. I want to fix the end of it for future use if I need it by either cutting a slot in it for a screwdriver or I'll weld a nut on it. Thanks again Share this post Link to post Share on other sites
Lane Ranger 10,968 #6 Posted October 3, 2023 I sold my neighbor a B-100 hydro that had a sticky tow valve that needed loosening up. His solution was pretty good . He placed a channel lock pliers on the tow valve hanging down and sprayed with penetrating fluid. He drove it around for a couple weeks and the bouncing around loosened it up! easiest method as far as I know! 3 Share this post Link to post Share on other sites
oliver2-44 9,738 #7 Posted October 3, 2023 (edited) The Tow valve was very stuck on my C160 and i sprayed it with penetrant for a while with no luck. I've had good luck using a large vice grip pliers, clamped very tightly. I lifted the front of he horse fairly high to get the tow valve at a 45 degree. I put a temporary bead of caulk around the edge of the tow valve to form a dam to hold the penetrant in a pool to soak for several days. I used a large vice grip pliers, clamped very tightly and it finally moved and freed up. Edited October 28, 2023 by oliver2-44 3 1 Share this post Link to post Share on other sites
Lane Ranger 10,968 #8 Posted October 3, 2023 1 hour ago, oliver2-44 said: The Tow valve was very stuck on my C160 and i sprayed it with tenetrans for a while with no luck. I've had good luck using a large vice grip pliers, clamped very tightly. I lifted the front of he horse fairly high to get the tow valve at a 45 degree. I put a temporary bead of caulk around the edge of the tow valve to form a dam to hold the penetrant in a pool to soak for several days. I used a large vice grip pliers, clamped very tightly and it finally moved and freed up. yep vise grips not channel locks! Ha! 1 Share this post Link to post Share on other sites
squonk 41,076 #9 Posted October 3, 2023 (edited) Yup. If you use an 18" pipe wrench and a 3-4' pipe on it you will snap it off or break the pump housing Edited October 3, 2023 by squonk 1 Share this post Link to post Share on other sites
pacer 3,169 #10 Posted October 3, 2023 I'm with the pipe wrench group, vice grips just wont hold like a pipe wrench ..... I had a stuck one on a 'Big D' and only got it loose when I finally needed to pull the the whole unit for other work/repair. Got it on the bench and had to end up cobbling up a hold down apparatus (what a pain!) in order to use the pipe wrench, which a 10" wouldnt budge, switched to a 14 and cheater pipe and .... POW!! it finally gave up. Amazing how those things can get so stuck (kinda like a steering wheel) The flat blade slot was completely gone by then, so I welded a nut on the end .... comes loose real easy NOW! 2 Share this post Link to post Share on other sites
Ed Kennell 38,151 #11 Posted October 3, 2023 1 hour ago, pacer said: I'm with the pipe wrench group, vice grips just wont hold like a pipe wrench .... Same here, nothing beats a Rigid Pipe Wrench with sharp jaws. 2 1 Share this post Link to post Share on other sites
peter lena 8,616 #12 Posted October 3, 2023 @pacer had a lot of luck with KROIL , have also gotten in the habit of starting a soak on any spot , and letting it soak in the vibration lube , have also pipe wrenched spots , with added weight , and driven it around a few days , one solid hit with a 3 lb. hammer always does it .my pipefitter partner , showed me many tricks and views of how to deal with frozen joints , go KROIL , pete Share this post Link to post Share on other sites
pfrederi 17,730 #13 Posted October 3, 2023 Nothing will come flying out and the O rings are easy to replace. Share this post Link to post Share on other sites
moe1965 737 #14 Posted October 9, 2023 (edited) Just wanted to give a update. I took a cap off a water bottle and used some sticky adhesive I had and cut a hole in it stuck it around the tow valve and filled it with kroles and let it set for a few days I'm not going to say it backed right out but it was little effort and it started to turn. I'm glad it worked out thanks all for the input Edited October 10, 2023 by moe1965 4 2 Share this post Link to post Share on other sites
