Re: Coil Spring Installation
Posted by HH56 On 2019/3/16 10:00:28
Is there enough room to use something like this in the middle 3 or 4 coils and instead of the long side bolts screwing in to compress the spring, use a hydraulic press to compress the spring the 4" and use shorter lengths of all thread that would fit the space available and some nuts & washers to hold the prongs together.
Instead of the commercially made hooked prongs you might be able to make something that would work similarly by using two 1/4 or 5/16 thick flat plates 2 or 3" wide inserted between the coils that spanned all the way across and then hold them together with the all thread on the outside again. The length of all thread needed would have to be long enough that you would have some control at the end when undoing the nuts holding things together once the spring was in the perches. If you used flat plates I think I would add a couple of smaller bolts thru each plate on the inside of the coil diameter so the bolts would catch and plates could not accidentally slide off the coils.
If you don't have access to a press you could use the flat plates with a third hole in the middle. Use the plates and longer outer all thread lengths to compress the spring. Once compressed, use another length of all thread in the middle hole in the center of the spring to hold the plates together while you remove and replace the outer lengths with shorter ones to fit the space available. Then remove the center length before inserting the spring in the perches. If you used the all thread to compress you would need to make sure plenty of lube and anti seize was on the threads so the nuts would not gall and I would probably use 3/4" all thread because of the strength of the springs.
Attach file:
(59.79 KB)
Instead of the commercially made hooked prongs you might be able to make something that would work similarly by using two 1/4 or 5/16 thick flat plates 2 or 3" wide inserted between the coils that spanned all the way across and then hold them together with the all thread on the outside again. The length of all thread needed would have to be long enough that you would have some control at the end when undoing the nuts holding things together once the spring was in the perches. If you used flat plates I think I would add a couple of smaller bolts thru each plate on the inside of the coil diameter so the bolts would catch and plates could not accidentally slide off the coils.
If you don't have access to a press you could use the flat plates with a third hole in the middle. Use the plates and longer outer all thread lengths to compress the spring. Once compressed, use another length of all thread in the middle hole in the center of the spring to hold the plates together while you remove and replace the outer lengths with shorter ones to fit the space available. Then remove the center length before inserting the spring in the perches. If you used the all thread to compress you would need to make sure plenty of lube and anti seize was on the threads so the nuts would not gall and I would probably use 3/4" all thread because of the strength of the springs.
Attach file:
(59.79 KB)
This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=210212