1955 - 1960 Chevrolet Guardian-Tune for All Models

	Page
Cover	0
Introduction	1
SECTION 1	2
What is "Guardian-Tune?"	2
SECTION 2	4
Mechanical Checks and Adjustments	4
1. Get the Story from the Customer	4
2. Test Compression	4
3. Clean, Service and Install Spark Plugs	7
4. Service Ignition System and Make Necessary Repairs	16
5. Service Battery and Battery Cables	21
6. Service Fan Belt and Generator	25
7. Check Operation of Manifold Heat Valve (except Corvair)	26
8. Tighten Intake Manifold Bolts (except Corvair)	26
9. Check Fuel Lines and Service Filter	26
10. Check Carburetor Linkage and Adjustments	28
11. Inspect and Service Cooling System - All except Corvair	30
Corvair	31
12. Normalize Engine	32
13. Perform Cleaning and Checking Operations during warm-up	32
15. Adjust Valve Lash	34
16. Set Engine Dwell on External Adjustment Models	34
Summary of Mechanical Adjustments	34
SECTION 3	35
Testing the Guardian-Tune	35
SECTION 4	41
The Oscilloscope	41
REVIEW QUESTIONS	58
TUNE-UP SPECIFICATIONS CHART	60

Booklet Added: 28 December 2007