1. Measure the length of the damaged area of the mini-tube vacuum hose.
2. Cut a piece of standard 3 mm {0.125 in} inner diameter vacuum hose approx. 25 mm {1 in} longer than the damaged area of mini-tube vacuum hose.
3. Cut off the mini-tube vacuum hose on each side of the damaged area.
4. Dip the mini-tube hose ends in commercially available paint thinner containing methyl ethyl ketone (MEK). This solvent will seal the mini-tube in the vacuum hose.
5. Insert the ends of the mini-tube vacuum hose approx. 9 mm {0.375 in} into the ends of the standard 3 mm {0.125 in} service vacuum hose section.
6. Shake the service joint after assembly to make sure the O-ring seal solvent is dispersed and the vacuum line is not plugged.
7. Test the system for a vacuum leak in the repair area.