Tip & How-To about Chevrolet G30

V-belt routing for a Chev 454 (7.5l) engine

This is the routing diagram for a 454 engine using v-belts only, not a serpentine belt.
The following abbreviations are used :

  • C - Crankshaft
  • S - Smog pump (A.I.R.) system
  • W/P - Water Pump
  • Alt - Alternator / Generator
  • A/C - Airconditioner
  • P/S - Power steering(In some installations also includes the brake booster pump)
This particular setup is most prevalent in motorhomes. Refer to the diagram.
Diagram 1 is for the first groove on the crank(closest to the block), and utilizes the 1st groove on the power steering.(belt no : 15415)
Diagram 2 is for the 2nd crank groove and utilises the 1st groove on the water pump pulley, the A/C pulley and the 2nd groove on the P/S pulley.(belt no 15590)
Diagram 3 is for the 3rd groove on the crank


If your motorhome uses a serpentine belt it replaces the belt in track number 3. (serpentine belt no : 6K560)
The upper smog pump(not shown in diagrams) is powered from the powersteering (Hydraboost) pulley (V-belt no : 15450)

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2 Answers

Trailblazer serpentine belt diagram


Hi, first, keep this diagram around as you will need it to route the serpentine belt when you reinstall it. There may also be a diagram under the hood by the radiator.
7e98dff.jpg Next, follow this link and watch the video that shows you how to replace a serpentine belt...
http://www.wonderhowto.com/how-to/video/how-to-inspect-and-replace-your-car-s-serpentine-belt-267229/
Take care

Aug 03, 2010 | 2002 Chevrolet TrailBlazer

2 Answers

need diagram of drive belt assembly forcaddy


You didn't list your motor size so please pick the applicable diagram:

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Accessory serpentine belt routing—4.8L, 5.3L & 6.0L engines

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Accessory serpentine belt routing—5.7L engines with A/C

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Accessory serpentine belt routing—5.7L engines without A/C

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Accessory serpentine belt routing—6.5L Diesel engines

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Accessory serpentine belt routing—7.4L engines

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Accessory serpentine belt routing—8.1L engines

Oct 26, 2009 | 2002 Cadillac Escalade Ext

3 Answers

NEED DIAGRAM FOR ROUTING THE SERPENTINE BELT


PLEASE DON'T FORGET TO RATE--You didn't post the size of motor so please pick the applicable one:

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Accessory serpentine belt routing—4.8L, 5.3L and 6.0L engines

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Accessory serpentine belt routing—4.3L, 5.0L and 5.7L engines without A/C

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Accessory serpentine belt routing—4.3L, 5.0L and 5.7L engines with A/C

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Accessory serpentine belt routing—6.5L Diesel engines

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Accessory serpentine belt routing—7.4L engine

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Accessory serpentine belt routing—8.1L engine

Oct 22, 2009 | 2004 Chevrolet Express

1 Answer

do you have the belt diagram for a 1986 454 chevrolet engine in a winnebago class a motor home? There are (3) V-Belts and (1) Surpintine belt.


I can't find anything on a motorhome application, but here is Dayco's chart for the serpentine belt on a 84-90 Surburban with a 454 engine.

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Sep 21, 2009 | 1988 Chevrolet C/K 3500

5 Answers

serpentine belt replacement


2.0L Engines
See Figures 11, 12 and 13
The accessory drive belt for 2.0L engines has no provision for manual belt adjustment, since these engines use an automatic belt tensioner. Drive belt slack is taken up by the automatic tensioner.
Movement of the automatic tensioner assembly during engine operation is not a sign of a malfunctioning tensioner. This movement is the tensioner self-adjusting and is required to maintain constant belt tension.
The belt tensioner has a belt length indicator. If the indicator marks are not between the MIN and MAX marks, the belt must be replaced.
0900c1528008d836.jpgFig. 11: Drive belt routing-2.0L SOHC engine with A/C 0900c1528008d837.jpgFig. 12: Drive belt routing-2.0L SOHC engine without A/C 0900c1528008d838.jpgFig. 13: Drive belt routing-2.0L DOHC engine

Jul 24, 2008 | 1999 Ford Escort

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