PerTronix JBA Exhaust 6654S - Manual (Page 3)

3. From under the vehicle, unbolt the head pipes from the exhaust manifold and the exhaust system. Then re-
move the head pipe.
4. Unbolt the starter and set it aside.
5. Remove the clutch linkage and set it aside.
6. Remove the motor mount bolts.
7. Raise the engine up enough to put your 2x2x4 wood blocks between your engine mount and saddle where
it sat. Lower the engine on to the blocks. It ’s now safe to disconnect the engine hoist and remove the factory
manifolds on both sides.
8. Using a small wire brush or similar instrument, clean any carbon deposits left on the head.
9. Clean the debris off of the frame under the exhaust manifolds. Be sure to protect your eyes.
10. Raise the car up on the jack stands again and install the passenger side header from under the car. Only in-
stall the front and rear bolts and thread in 3 turns.
11. Install the driver side header from under the car and again only thread in the front and rear bolts about 3
turns. You may need to raise up the driver side a little higher. Be very careful.
12. From above, slide the supplied JBA gaskets between the header flange and the head on to the front and rear
bolts. The gasket is notched in front and rear to allow it to drop into place. With the gasket properly in place,
thread in the rest of the head flange bolts using the supplied lock washers. Thread them until they make contact
with the head flange. Now using an alternating sequence (top to bottom) start tightening the bolts a half turn
each until they are snug.
13. Repeat this process on the other side.
14 If you are installing the JBA H-pipe P/N 6654H,snug the supplied collector bolts up until the rest of the ex-
haust system is installed. This will allow for proper alignment.
15. Double check to make sure the head flange bolts are tight to head. Now raise the engine up with the engine
hoist and remove the wood blocks. Lower the engine down onto the mounts and tighten mount bolts.
16. Reinstall the spark plug wires and looms taking care not to let any wires rest against the header tubes. Rein-
stall the battery cable. Make sure all rubber hoses and wires are kept away from the headers. Otherwise, the heat
will damage these components.
17. The installation of the headers is now complete. The adaptation of the headers to the exhaust system should
be left to an exhaust shop unless you have access to tube bending and welding equipment.
18. After the exhaust modifications have been made to adapt the headers to your exhaust system, recheck every-
thing! Make sure all bolts are tight.
19. Start the engine and let it warm up. Check for leaks. Shut engine off and let it cool down. Now re-torque all
fasteners to make sure all are tight.
20. All Tubular Headers require maintenance including periodically check and retighten the header bolts.