PerTronix JBA Exhaust 1860S-1 - Manual (Page 3)

5. Unbolt the EGR tube at rear of the passenger side manifold. If equipped -unbolt the air injection tubes at front
of the manifolds.
6. Disconnect the spark plug wires by grasping and gently twisting the spark plug wire boots. Do not pull on
the wires. Brush or blow away any debris, which may have collected around the manifolds and spark plugs.
This will help prevent foreign matter from entering the combustion chambers when the manifolds are removed.
Remove the spark plugs to avoid accidental spark plug breakage.
7. Unbolt and remove dipstick tube. Remove the through bolt from the steering column, and slip shaft apart.
8. Now unbolt the factory manifolds from the engine and remove them.
9. Using a small wire brush or similar instrument, clean any carbon deposits from the head surface.
10. Using the gaskets and hardware supplied, NOTE :Install gaskets dry .Do not use silicone or other sealants
on Gasket. Bolt the new header to the head. Torque the fasteners to factory specifications. Where applicable,
reinstall the Air Injection tubes.
11. Reconnect the steering shaft and install spark plugs.
12. On vehicles equipped with factory spark plug wires: (4)
spark plug boots and terminals must be changed using the sup-
plied parts. On the driver .s side, the (3) forward boots must
be changed. On the passenger, the second boot back must be
changed. JBA offers a replacement set of JBA Power Cables™
ignition wires (P/N 0860) with the correct boots for this header
application.
13. You will now need to cut the catalytic converter pipes where
indicated (see drawing below).
14. Connect the new JBA down pipes to the Headers using the
supplied gaskets and fasteners.
15. Temporarily re-install the catalytic converter assemblies on the vehicle. Tack weld the assemblies to the new
down pipes. Remove the catalytic converter assemblies to finish welding.
16. Reinstall the catalytic converter assemblies using a small amount of O2 sensor safe RTV on the dome area.
Reattach the bracket and heat shield on the transmission.
17. Recheck everything!
18. Start the engine and let it warm up. Check for leaks. Shut engine off and let it cool down. Check to make
sure all fasteners are tight.
19. All tubular headers require maintenance including periodically check and retighten the header bolts.