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Tractor Talk Discussion Forum

Ideas for a cheap valve spring compressor

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cranbrook farme

01-01-2007 10:30:44




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im tearin apart my cub cadet 100 motor , I don't have a valve spring compressor, shops are all closed So i used a pry bar to take the valves out to lap them. Now I want to put them back in and my crow bar idea just don't work.

are there any tricks out there for cheap home made valve spring compressors. Would be realy nice right now to hear a few , thanxs




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vjd

01-01-2007 18:30:50




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 Re: Ideas for a cheap valve spring compressor in reply to cranbrook farmer, 01-01-2007 10:30:44  
Take a big washer weild three legs on it put a nother washer on top weila it put a bolt on top of that put it in your drill press ( DONT TURN IT ON ) press down on it thke the valves out or in



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j. bliler

01-01-2007 16:19:33




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 Re: Ideas for a cheap valve spring compressor in reply to cranbrook farmer, 01-01-2007 10:30:44  
Find a tool addict and borrow one!!! I have three of them collecting dust. One is just for small engine valves and has been used on my cub 100 twice. You sure could use mine. I like old Kohlors!



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hay

01-01-2007 12:39:48




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 Re: Ideas for a cheap valve spring compressor in reply to cranbrook farmer, 01-01-2007 10:30:44  
i'm not familiar with a cub cadet 100 motor, but in the past i used an old oil filter wrench handle to depress the spring and remove the keepers and also to reinstall it. although, the handle was made from a piece of steel that was looped over to form both sides, the process did destroy the handle.



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Philmar Farms

01-01-2007 10:52:48




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 Re: Ideas for a cheap valve spring compressor in reply to cranbrook farmer, 01-01-2007 10:30:44  
I used to use an open end wrench. Choose a size that will push on the retainer and leave room to get the keepers in. Use a loop of baling wire through a head bolt hole as a fulcrum. Move wire and repeat. A dab of grease on the keepers will hold them in place while assembling. Phil



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cranbrook farmer

01-01-2007 10:44:29




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 Re: Ideas for a cheap valve spring compressor in reply to cranbrook farmer, 01-01-2007 10:30:44  
its a kohler 10 hp engine. there are two little wegdes that fit around the end of valve. I can get one in with one free hand, the other is holding the valve spring up. But the trick is getting the second wedge keeper on, TRickkyyyyy.

ive tried finding some stick stuff to sorta glue one wedge on and try to put on second, no luck so far.



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Jim K

01-01-2007 11:21:02




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 Re: Ideas for a cheap valve spring compressor in reply to cranbrook farmer, 01-01-2007 10:44:29  
If you have it on a bench put the motor upside down so that the keepers just drop in.
If it is in the machine put a little chewing gum or some other sticky substance on the end of a rod (I know this is begining to sound a little wierd)Then use your larger screwdrivers and you also might need a little piece of wood or something for a spacer if needed at the far end of the drivers, you could take a piece of flat stock say about 1/4" X 1-1/4 and make a slot wide enough so it will compress the spring and still allow you to install the keepers, you could even try just drilling a large enough hole in the flat stock instead of a slot, you could even put a bend at end so you don't need to use spacers

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old

01-01-2007 11:19:26




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 Re: Ideas for a cheap valve spring compressor in reply to cranbrook farmer, 01-01-2007 10:44:29  
If you have the engine out of the machine heres a trick that might work. Lay the engine so the valves are down and on a hard surface. Then have someone sit on it or weight it down do the valves will not push out. Then you can use a wrench etc to push the spring down and drop the keepers on. That lets gravity help you. You may have to set something like a washer under the valves to keep them from moveing down since they are probably recessed a little

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Gerald J.

01-01-2007 10:42:41




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 Re: Ideas for a cheap valve spring compressor in reply to cranbrook farmer, 01-01-2007 10:30:44  
Out in my garage the work bench backs up to wall studs. When doing a VW engine 35 years ago, I pivoted a 2x along side a wall stud to make a lever and I think I bolted a piece of about 1" angle iron to the lever. I put a block of wood under the valve head so it didn't slip down and I pushed down with the 2x lever and the end of the angle iron pushing on the top spring cap. As I recall it worked OK. The lever pivot to the stud was probably a 1/4" bolt as was the pivot to the length of angle iron.

Gerald J.

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Jim K

01-01-2007 10:37:59




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 Re: Ideas for a cheap valve spring compressor in reply to cranbrook farmer, 01-01-2007 10:30:44  
I'm not familiar with the cub 100 what kind of motor is it? I asume that it is a valve in block design.
I am usually able to do it with a couple screwdrivers.



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