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#Post#: 12450-------------------------------------------------- |
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18lbs valve springs |
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By: NewbieNick Date: January 22, 2025, 10:58 am |
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18 lbs valve springs installation. If you have an engine with |
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collet type valve retainers this may help you. Valve spring |
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compressor made from an old 1/2 inch open ended spanner. |
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#Post#: 12457-------------------------------------------------- |
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Re: 18lbs valve springs |
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By: RhysN Date: January 23, 2025, 3:16 am |
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I watched a guy do valve springs and stem seals on a 12 |
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cylinder just a few weeks back, reminded me how I helped put |
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16lb springs in a Honda in Seattle, wind the crank to bottom |
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dead centre, a length of cord through the spark plug hole and |
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wind to near TDC, push the collet down with a screw driver, pop |
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the keeper, pull the springs, new ones on, collets back, back |
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off the piston, pull the cord. Job done. The guy doing the 12 |
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cylinder took well under an hour to do the lot. Similar method |
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as Nick, just didn't need anything except a push. Standard valve |
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springs are easily pushed down (even on the motor mentioned) |
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#Post#: 12458-------------------------------------------------- |
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Re: 18lbs valve springs |
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By: NewbieNick Date: January 23, 2025, 3:45 am |
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Hi Rhys, you will notice the rope in spark plug hole, whilst |
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pushing springs is quite easy getting tiny little collets in or |
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out & holding a spring down at the same time I found fiddly & |
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frustrating hence the heath robinson valve compressor. |
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Cheers Nick |
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#Post#: 12459-------------------------------------------------- |
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Re: 18lbs valve springs |
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By: RhysN Date: January 23, 2025, 4:07 am |
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Hi Nick, yes I did spot the rope, that's why I mentioned |
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"similar method". We, in Seattle, and the guy doing the 12 |
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cylinder, all used a magnet, pencil like to grab the tiny |
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collets. Very similar, and you are right, they are fiddly, the |
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magnet is a game changer. |
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#Post#: 12461-------------------------------------------------- |
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Re: 18lbs valve springs |
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By: Jimr1999 Date: January 23, 2025, 7:05 am |
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I would agree with the fiddlyness of this job having done the |
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springs on the Lifan 212cc with the collet system. After losing |
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the collet retainers down the hole that the push rods come up |
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through and having to open the engine to get at them I would |
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suggest another tip too, Find a socket that fits the valve cap, |
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put a magnet inside it, use this to push down on the valve cap, |
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rope in place to stop valve drop and the collets end up on the |
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magnet, not down in the engine. ::) |
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Putting them back in without a tool was a matter of patience and |
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a lot of swearing, I got the knack after many, many failed tries |
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at it, but having the tool Nick made would have made it a |
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doddle. |
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The collet system is considered superior to the slotted steel |
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cap you find in most of these engines and GX tuning recommends |
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them for some of the heavier valve springs they sell. |
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JimR |
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#Post#: 12463-------------------------------------------------- |
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Re: 18lbs valve springs |
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By: tim.wheater Date: January 23, 2025, 2:14 pm |
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Stuff rag everywhere you can drop something 😉 |
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