
I had a seam rip open at a high stress area of my bench seat headrest.
Here is a picture after opening up the seam even farther to get some good thread revealed.

I had found this technique on YouTube. First step was to open up
the seam far enough to get good thread to be able to tie onto.
I used a polyester thread. Exterior grade heavy duty thread from
a sewing supply. I've heard that gortex would be the #1 choice,
but I did not know where to get gortex thread.

After getting my new thread tied onto the old thread, then using a
curved needle, it's a matter of threading under to the next hole,
then straight across, then under to the next hole on that side,
then straight across...

Here's how it looks as I started to pull it tight.

Finished product after completing the stitches and tying tight to the
original thread at the bottom (the hardest part), then using the
needle to pull the extra thread to the backside. I also pushed
the knot at the top to the backside of the vinyl.

From a distance, it blends in reasonably well.
Looks pretty good for a 16 year old boat

Ray
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"Knot Easy" 2000 Horizon 240 Volvo 5.7GS /SX
tow: 2017 Honda PILOT EXL-AWD
prev. boats:
'87 Chaparral 198CXL 4.3 OMC Cobra
'69 Jetstar 16ft Ski Boat, 115hp Yamaha
'68 Aluminum Jon Boat, 3hp Sears
'64 Water Wings