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Post by lollygagger on Jul 18, 2018 10:16:30 GMT
I'm trying to help someone.
GRP boat with inboard engine and cable steering. Owner has been told cable is at fault. My guess is steering rack.
Trying to get it apart with little idea what I'm doing. Rack is cylindrical, single cable. Undone big nut and turning wheel pushes a big plastic piston-like part some way out then I stopped.
Q. Is this part of the cable or rack?
Q. If I took the cap off the other end would I maybe find a circlip holding cable to rack?
Any advice appreciated, can't see a makers name anywhere or find same looking rack on the internet.
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Post by Deleted on Jul 18, 2018 10:27:50 GMT
Snapped cable, it works on a worm and wheel principal.
Stick some pictures up and I'll try to identify it for you.
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Post by TonyDunkley on Jul 18, 2018 10:28:54 GMT
I'm trying to help someone. GRP boat with inboard engine and cable steering. Owner has been told cable is at fault. My guess is steering rack. Trying to get it apart with little idea what I'm doing. Rack is cylindrical, single cable. Undone big nut and turning wheel pushes a big plastic piston-like part some way out then I stopped. Q. Is this part of the cable or rack? Q. If I took the cap off the other end would I maybe find a circlip holding cable to rack? Any advice appreciated, can't see a makers name anywhere or find same looking rack on the internet. Are there any marks or numbers on it anywhere ? The type of single cable steering gear you describe has been made by a few different manufacturers, . . can you post pictures of both wheel and rudder ends of it ? |
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Post by lollygagger on Jul 18, 2018 11:13:00 GMT
"Someone else" has dismantled rudder end a year ago to prove it was cable related. I'll get pics when I can. I wondering if a seized chunky expensive cable like this could be freed up.  |
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Post by Deleted on Jul 18, 2018 12:16:48 GMT
"Someone else" has dismantled rudder end a year ago to prove it was cable related. I'll get pics when I can. I wondering if a seized chunky expensive cable like this could be freed up. From experience I would say no. The cable on my brothers Fairline was awful - stiff and notchy, freed up a little bit with liberal dosing of atf and diesel - its all relative though, the steering was only just a little bit less awful. Got much better when the cable eventually snapped and was replaced! The helm unit wheel can wear, cheap units use plastic wheels, better quality items brass or aluminium. Usually it is the cable that is the problem though. Cable ends to attach to the rudder stock tiller arm can be fun to sort out too. |
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Post by Andyberg on Jul 18, 2018 12:26:50 GMT
"Someone else" has dismantled rudder end a year ago to prove it was cable related. I'll get pics when I can. I wondering if a seized chunky expensive cable like this could be freed up. So you've been lumbered with that job huh? Ive been avoiding going round to sort it since I dragged it down the full length of the Rufford Branch last year😉 Enjoy👍 |
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Post by Deleted on Jul 18, 2018 13:05:29 GMT
Bin it and put hydraulic steering on there. Quite costly but worth doing.
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Post by lollygagger on Jul 18, 2018 13:08:47 GMT
"Someone else" has dismantled rudder end a year ago to prove it was cable related. I'll get pics when I can. I wondering if a seized chunky expensive cable like this could be freed up. So you've been lumbered with that job huh? Ive been avoiding going round to sort it since I dragged it down the full length of the Rufford Branch last year😉 Enjoy👍 I'm "helping" getting it out. They'll have to put the new one on, I'm busy sanding. They've sold it so when push comes to shove you can bet they'll manage to fit a new cable.  |
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Post by Mr Stabby on Jul 18, 2018 13:11:07 GMT
I'm trying to help someone. GRP boat with inboard engine and cable steering. Owner has been told cable is at fault. My guess is steering rack. Trying to get it apart with little idea what I'm doing. Rack is cylindrical, single cable. Undone big nut and turning wheel pushes a big plastic piston-like part some way out then I stopped. Q. Is this part of the cable or rack? Q. If I took the cap off the other end would I maybe find a circlip holding cable to rack? Any advice appreciated, can't see a makers name anywhere or find same looking rack on the internet. Is there a maker's name on it anywhere ? The words "can't see a makers name anywhere" may be a clue here. |
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Post by Deleted on Jul 18, 2018 13:38:06 GMT
Mr shit-for-brains................ 1
Tony the diesel demon........ 0
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Post by Deleted on Jul 18, 2018 14:06:09 GMT
The reason it will move the cable a bit is because the inner cable (the worm) will engage a little bit until it gets to the break - obviously that won't transmit any force to the outer and it moves no further. The breaks usually occur at the helm unit end where the inner cable is wound back and forth over the wheel. Stiffness usually occurs at the actuating end and is usually worse on outboard motors as they are subject to the elements as opposed an inboard set up where the rudder stock and tiller should be in a relatively dirt free and dry environment. Wear to the helm unit can only be checked by striping and inspecting it. First job is cable, that will likely be shagged. After that you replace the helm if it's worn so much it slips on the new cable. Smart money goes on replacing the lot but as it's off to pastures new I doubt that is top of the agenda |
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Post by lollygagger on Jul 18, 2018 16:20:49 GMT
I'll ask whether the wheel stuck or span without any action. I suspect the latter so the question will be are the rack teeth part of the cable or the steering rack.
Wheel side they got the wheel off, but there's a plastic tidy up bit like a flower pot with no visible means of support. Behind that there should be a big nut that I need to get at. Sorry no photos yet.
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Post by Deleted on Jul 18, 2018 17:29:45 GMT
I'll ask whether the wheel stuck or span without any action. I suspect the latter so the question will be are the rack teeth part of the cable or the steering rack. Wheel side they got the wheel off, but there's a plastic tidy up bit like a flower pot with no visible means of support. Behind that there should be a big nut that I need to get at. Sorry no photos yet. You need to get a rack out of your mind. It works on a worm and wheel principal. The cable is the worm that meshes with the wheel, this is what converts rotary motion into the linear motion that pushes and pulls the cable. The odds of the wheel being worn and the cable being serviceable are vanishingly small. The helm will be held from the front - remove the steering wheel and bezel and you will reveal the screws that attach the helm unit to the helm moulding. The steering wheel will be on a 3/4" taper so will need a puller to remove it. |
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Post by Mr Stabby on Jul 18, 2018 17:38:33 GMT
I'm trying to help someone. GRP boat with inboard engine and cable steering. Owner has been told cable is at fault. My guess is steering rack. Trying to get it apart with little idea what I'm doing. Rack is cylindrical, single cable. Undone big nut and turning wheel pushes a big plastic piston-like part some way out then I stopped. Q. Is this part of the cable or rack? Q. If I took the cap off the other end would I maybe find a circlip holding cable to rack? Any advice appreciated, can't see a makers name anywhere or find same looking rack on the internet. Are there any marks or numbers on it anywhere ? Nice edit! |
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Post by lollygagger on Jul 19, 2018 9:23:15 GMT
"Someone else" has dismantled rudder end a year ago to prove it was cable related. I'll get pics when I can. I wondering if a seized chunky expensive cable like this could be freed up. So you've been lumbered with that job huh? Ive been avoiding going round to sort it since I dragged it down the full length of the Rufford Branch last year😉 Enjoy👍 All good, they've got Gary doing the job now. Funny that when push comes to shove the wallet comes out...well out of that one. 👍 |
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