Dash donut recover GMC motorhome

 

                                     Making patterns

                                     Getting machine ready

                                 Getting setup for glue

                                     Weldwood Landau top adhesive

                                 

Refurbish dash pad on the GMC motorhome

The original pad had shrunk and the ends curled up. We made a new fiberglass backing that fit where the pad was and installed upholstery on the backing. This was done with West Epoxy resin. We used clear packing tape on the dash to keep the new backing from sticking when laying up the glass. The dash vents forms were vacuum formed over a wood pattern.

New seats for the GMC

Seats for the GMC, we modified them to fit on the swivel bases. These are semi truck seats with air lumbar supports and a multitude of adjustments

We went to Four State Trucks in Joplin Mo to choose what we wanted. The picture is just some of the seats they have, all hooked up to air so you can feel what they are like.

We chose Atlas II deluxe seats made by Sears Seating, It took 18 weeks to get them.

I took the air ride bases off in order to use the GMC's swivel bases. We used the new seats slide arrangement.

We welded 1/2x2 flat bar with tapped holes to match the GMC bases to the new seats

We extended the swivel levers with some stainless tubes over the round GMC levers.

Hydromax and a GMC motorhome

Testing on a fixture like the dash Sue is my foot model/pedal pusher Front pressure on the coach with 80mm calipers Rear pressure on the coach 80mm mid and 66mm rear calipers

Under construction and pivot points

Booster adapter

original clevis connection with rubber bush

O ring boss adapter for remote reservoir

pressures at maximum

Method to measure pedal pressure

Test rig with 1 square inch area air cylinder

Angularity check

Observed pedal force and output pressure

hood clearance

Dash protrusion

F-250 reservoir and remote adapter

Additional pump and fourth pulley