How to swap springs?
04-21-2006, 11:01 PM
#1
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How to swap springs?
I've found all kinds of instructions on how to swap the rockers, but not much on springs....some guidance or instructions please??
04-21-2006, 11:16 PM
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You use a spring compressor. It'* a piece of flatbar that bolts to a rocker hole and is used to then press down with fork over the spring to compress it. Then you remove the two split keys around the now protruding valve stem, release the lever and the spring is free. Very simple.
The real trick is holding the valve from dropping into the cylinder....very bad news.
Three methods, I know of.
1. Remove head and use the traditional method
2. Use compressed air to pressurize the cylinder so the valve cannot drop
3. Stuff a rope inside the spark plug hole to jam the valve between it and the top of the piston.
The real trick is holding the valve from dropping into the cylinder....very bad news.
Three methods, I know of.
1. Remove head and use the traditional method
2. Use compressed air to pressurize the cylinder so the valve cannot drop
3. Stuff a rope inside the spark plug hole to jam the valve between it and the top of the piston.
04-21-2006, 11:17 PM
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Id say you would need a valve spring compressor..however, the heads are still on the vehicle...you need a way to remove the compresson from the springs to remove the keepers...
04-22-2006, 02:43 AM
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If the heads are going to be left on the car:
I always use 3/8inch nylon rope to fill the cylinder, spin the crank untill the piston is all the way down, then fill the cylinder (4ft of rope IIRC). Spin the crank until the piston compresses the rope (slow and smooth). Make sure all the rockers are off first.
Compress the spring and be care full not to loose any locks. assemble the new spring/retainers and compress them, set them i place and set the locks in place, uncompress slowly, as you dont want to bend a valve.
coninue for the remaining 11 springs. Then eye up the springs looking straight down on them. They shouls all retain a "beehive" shape. If not (and some prolly wont) slide the base a little with a flathead screw driver were the spring needs to be, but be careful not to scar anything, the springs will slide a little any direction you need VERY easy.
Good luck-
Jeremiah
I always use 3/8inch nylon rope to fill the cylinder, spin the crank untill the piston is all the way down, then fill the cylinder (4ft of rope IIRC). Spin the crank until the piston compresses the rope (slow and smooth). Make sure all the rockers are off first.
Compress the spring and be care full not to loose any locks. assemble the new spring/retainers and compress them, set them i place and set the locks in place, uncompress slowly, as you dont want to bend a valve.
coninue for the remaining 11 springs. Then eye up the springs looking straight down on them. They shouls all retain a "beehive" shape. If not (and some prolly wont) slide the base a little with a flathead screw driver were the spring needs to be, but be careful not to scar anything, the springs will slide a little any direction you need VERY easy.
Good luck-
Jeremiah
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