Skylark L4-138 2.3L DOHC VIN D MFI QUAD 4 (1989)
12.
Install and tighten cylinder head bolts to the N-m (lbs.ft.) specification in SEQUENCE. Refer to Step A in Figure 7 for the specification.
13.
After completing step 12 on all ten bolts, tighten all the cylinder head bolts and additional 90 degrees indicated in Step B of Figure 7 in
SEQUENCE using J 36660.
14.
Replace thermostat.
15.
Assemble the rest of the engine, refer to appropriate service manual.
16.
Change the engine oil and filter, be sure to use a PF 1225 oil filter.
17.
Add (2) engine cooling system sealer pellets from package, P/N 03634621, to the cooling system.
18.
Fill the cooling system. Use a mixture of water and coolant meeting GM specification 1825-M to get a protection level of -37 degrees C (-34
degrees F) to maintain sufficient engine cooling, freezing and corrosion protection. Do not use a mixture that has more than 70% anti-freeze in it.
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1988 Model/Years:
a.
Disconnect heater inlet hose from engine coolant outlet.
b.
Remove pressure cap from radiator and fill with coolant until coolant drains from the engine coolant outlet.
IMPORTANT:
THIS PROCESS MAY TAKE UP TO 15 MINUTES.
c.
Reconnect heater hose to engine coolant outlet.
d.
Start engine.
e.
Continue to fill radiator as coolant level drops until the radiator hose at the radiator inlet is hot and coolant level in radiator becomes
stable.
f.
Fill radiator completely.
g.
Install pressure cap.
h.
Stop engine.
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1989-91 Model/Years:
a.
Remove the top radiator hose from the radiator prior to refining the coolant.
b.
Fill the coolant system until coolant appears at the radiator inlet.
c.
Re-install the top radiator-hose to the radiator inlet and continue filling surge tank to the base of the filler neck.
