bknbronco
Bronco Guru
Just thought id throw out a few tips as the Teflon seals are a dreaded task.
This is in regards to a 4x4x2 box but similar to other boxes
The large oring and Teflon seal on the piston was simple and it shrunk right up in about 10 minutes. Was pretty tight and I found the easiest way to get it in the box was to put in the bolts and turn the input shaft to drive it in easly.
The most dredded is the 4 Teflon seals on the worm gear piston. I have heard that dipping them in hot water helps but I went a completely different way and it was so simple. The problem is that the seals stretch and then wont shrink tight enough to get it in the valve body.
heres the simple way.....
1. Cut of the 4 seals with a knife
2. cut up a 1 or 2 liter bottle. Cut it about 4" wide and then cut it to length by wrapping it around the worm gear valve body and marking where it overlaps. Cut it to where the two edges just meet.
3. Coat the plastic and the seals in steering fluid. Wrap the plastic around the valve body just above the bottom seal groove. Work the first seal over the plastic and slide down until it hits the last groove. Slide the plastic up to the next grove and repeat. slide number 2 on and slide it down the plastic. Repeat with 3 and 4. This is much easier than weaseling it from grove to grove.
4. Now the real trick nobody tells you. The Teflon seals will be really stretched out. The trick is to wrap them in electrical tape. Yup! Wrap it around and then wrap the next wrap tighter and the next wrap tighter and the next even tighter. After 6 wraps or so it will have compressed the Teflon seals. I did the bottom two with a wrap and the top two with a separate wrap. Let it sit for a few hours, and then pull the tape and the seals will be much much tighter and will now slide safety into the valve body.
No need for heat or cold or hot water. Just the wraps of tape.
This is in regards to a 4x4x2 box but similar to other boxes
The large oring and Teflon seal on the piston was simple and it shrunk right up in about 10 minutes. Was pretty tight and I found the easiest way to get it in the box was to put in the bolts and turn the input shaft to drive it in easly.
The most dredded is the 4 Teflon seals on the worm gear piston. I have heard that dipping them in hot water helps but I went a completely different way and it was so simple. The problem is that the seals stretch and then wont shrink tight enough to get it in the valve body.
heres the simple way.....
1. Cut of the 4 seals with a knife
2. cut up a 1 or 2 liter bottle. Cut it about 4" wide and then cut it to length by wrapping it around the worm gear valve body and marking where it overlaps. Cut it to where the two edges just meet.
3. Coat the plastic and the seals in steering fluid. Wrap the plastic around the valve body just above the bottom seal groove. Work the first seal over the plastic and slide down until it hits the last groove. Slide the plastic up to the next grove and repeat. slide number 2 on and slide it down the plastic. Repeat with 3 and 4. This is much easier than weaseling it from grove to grove.
4. Now the real trick nobody tells you. The Teflon seals will be really stretched out. The trick is to wrap them in electrical tape. Yup! Wrap it around and then wrap the next wrap tighter and the next wrap tighter and the next even tighter. After 6 wraps or so it will have compressed the Teflon seals. I did the bottom two with a wrap and the top two with a separate wrap. Let it sit for a few hours, and then pull the tape and the seals will be much much tighter and will now slide safety into the valve body.
No need for heat or cold or hot water. Just the wraps of tape.
