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Old 11-18-2012, 05:22 PM   #1
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Replace tank valves, help

I'm having trouble replacing the leaky valves. Research indicated this should be an easy job as long as the tanks are flushed. Well my tanks are really clean and the black tank valve came off ok. But the grey water valve is proving very difficult. For some reason 3 of the bolt heads are crushed. I've tried pliers, wrenches etc but nothing grabs so the other end just turns. Any ideas are appreciated - hope my comments make sense.
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Old 11-18-2012, 05:26 PM   #2
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Can you get a drill in there and drill the heads of the bolt off? Use a drill bit one size larger then the shank and center pumch the head right in the center, then take it slowly.
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Old 11-18-2012, 05:37 PM   #3
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Originally Posted by ljcpmc View Post
I'm having trouble replacing the leaky valves. Research indicated this should be an easy job as long as the tanks are flushed. Well my tanks are really clean and the black tank valve came off ok. But the grey water valve is proving very difficult. For some reason 3 of the bolt heads are crushed. I've tried pliers, wrenches etc but nothing grabs so the other end just turns. Any ideas are appreciated - hope my comments make sense.
Can ya post a picture of bolts both sides? Drilling is an option but it'll be very difficult to stay in the center for 3/4"length or more.
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Old 11-18-2012, 06:00 PM   #4
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Try a easy out that you put on a drill, you can get all sizes at any hardware store.
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Old 11-18-2012, 07:21 PM   #5
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My money is on an easy out as well.
They make one for the nuts too.

Craftsman Bolt-Out Damaged Bolt/Nut Remover Set Reviews - Craftsman Community
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Old 11-18-2012, 08:18 PM   #6
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If you drill the heads till they come off you only have to drill the thickness 3/16-1/8th inch of the bolt head. The bolt head comes off the shank then you can use a small nail and tap the shank of the bolt and rounded nut out with no head on the bolt. I guess I should ask? We are talking about a bolt and nut that holds the blade assy together?

If not ignore everything I said. HAHAHA
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Old 11-18-2012, 08:18 PM   #7
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I have a set of those at work I use occasionaly, work good sometimes if you have plenty of space and sholder clearance. Most of the time vise-grips help, but if I don't have to reuse the bolt a 3" cutoff wheel works good. Drilling works very good as you only have to drill thru the head if you use a bit larger than the shank.
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Old 11-18-2012, 09:02 PM   #8
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I'm having trouble replacing the leaky valves. Research indicated this should be an easy job as long as the tanks are flushed. Well my tanks are really clean and the black tank valve came off ok. But the grey water valve is proving very difficult. For some reason 3 of the bolt heads are crushed. I've tried pliers, wrenches etc but nothing grabs so the other end just turns. Any ideas are appreciated - hope my comments make sense.
Here's why I asked for a pic maybe no drill? You must reach under the white panel to operate the valves, not visible behind here. Panel is bolted piped, etc.
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Old 11-18-2012, 09:09 PM   #9
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Another option is to cut off the pipe as close to the valve as you can and replace the flanges, they are less than $5 and easy to install.
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Old 11-18-2012, 09:22 PM   #10
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Another option is to cut off the pipe as close to the valve as you can and replace the flanges, they are less than $5 and easy to install.
Good idea, slip on with ABS cement?
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