MSD 83811 GM LT-1 5.7L Distributor 95-97 Installation - Manual (Page 2)

2 INSTALLATION INSTRUCTIONS
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DISASSEMBLY
1. Disconnect the negative battery cable.
2. Locate the radiator petcock and drain the coolant from
the system.
3. Disconnect the TPS and IAC sensors (Figure 3).
4. Disconnect the MAF and ICT sensors (Figure 4). Then,
remove the air inlet boot.
5. Once the coolant is drained, remove the upper radiator
hose from the thermostat housing.
6. Loosen the three bolts that secure the crankshaft pulley/
hub assembly. Do not remove them entirely at this time.
7. Remove the accessory drive belt by moving the spring
loaded idler pulley. Use caution as this pulley is spring
loaded! The belt will slide off the pulley system and the
idler pulley will settle beyond its installed position.
8. Once the belt is removed, proceed with removing the
pulley from the crankshaft hub by pulling the three
retaining bolts. A puller will be required (Figure 5).
9. It may be necessary to remove the cooling fan. This is
done by removing the four bolts and disconnecting the
wiring connection.
10. Disconnect the air pump power wires and remove the air
pump from its mounting brackets.
11. Disconnect the coolant temperature wiring sensor located
on the water pump.
12. Loosen the lower radiator hose clamp and the two heater
hose clamps at the water pump. Coolant will generally still
pour out of the hoses and water pump.
13. To remove the water pump, the power steering pump may
need to be removed. With a shorter extension, the water
pump bolt should be able to be accessed. There are six
water pump bolts. Once again, more coolant may spill out.
14. At this point, you should be able to access the distributor
cap! Mark the location of each spark plug wire before
removing them.
15. Remove the vacuum lines (if equipped) and the distributor
connector at the distributor and on the passenger side of
the intake manifold (Figure 6).
16. Using the supplied special tool and a 1/4" wrench, remove
the four screws that hold the distributor cap to the engine
Figure 7 Removing the Original Cap. Figure 6 Disconnect the Distributor Connector.
Figure 3 Disconnect TPS and IAC.
Figure 5 Removing the Hub.
IAC
TPS
Figure 4 Disconnect the MAF and ICT.
ICT
MAF