I didn’t like the way the new CarQuest heater hose kinked with the slightest bend. So I whet to NAPA and checked out their brand. It’s wall thickness is 1/32″ greater and the OD is 1/16′ smaller. This is the new hose (bottom line) and it kept its shape through the clamp without trying to kink and collapse.
The top photo is the old hose with a kink starting, the second hose is the same hose with a gear clamp at the kink to force the hose into a round shape and the third photo is the NAPA hose with no kinking in the same location.
My band clamps arrived. I needed six to cover both sides. The size is 2″ on the small side and a bit over 2″ on the large side to slip over the joining pipe. I also have two 2″ regular clamps to fit over the end of the tail pipe and the rear hanger.
I noticed in the ad for the band clamps that metal sealing tape was used on the joints. Seemed like a good idea so I covered each joint that took a band clamp with aluminum duct tape.
I put the pipes and muffler together and then held up the muffler to the underside of the floor. The idea being that when all the clamps were in place and the jack removed the system would sag a minimum distance. That worked pretty good as the mufflers are barely visible from behind the car. With the system held up I installed the band clamps and hanger clamp. I rotated the clamps so the large screws were up out of sight. The tough part was tightening each clamp to 50 ft lbs. The sale ads specify that the clamps need to be tightened to between 40-60 ft lbs! That’s what it takes to make the joints immovable.
Exhaust in place-whew! Quite a job working with just jack stands. This is a complete original Studebaker system – except for the mufflers and the tail pipe extensions. 2″ pipes from the engine to the the tail pipe and 1-3/4″ tail pipes. I may up the tailpipes to 2″ sometime down the road. It seems that Hawks had the 2″ tail pipes.
Getting close to engine start up. Next is a bit of carb work, then the rad goes in and the wiring harness is re-installed. In the meantime I am changing the timing chain in my ’74 Dodge Adventurer SE truck so that will slow things down a bit.