D50/Ram 50 L4-1997cc 2.0L SOHC (1984)
Carburetor Jet: Technical Service Bulletins
High Altitude Conversion Packages
Models
1984 High Altitude Conversion Packages
-
MMC Imported Trucks, Ram-50, Power Ram 50 With Federal Emission System
Subject
High Altitude Conversion Packages
Index
EMISSIONS
Date
April 9, 1984
No..
25-01-84
P-1423-C
A package is now available to accommodate a customer who wishes to convert his 1984 low altitude emission package to the high altitude (over 4,000
feet above sea level) emission package.
Vehicles with the low altitude package transferred to service in high altitude areas may exhibit undesirable driveability. However, the installation of a
high altitude conversion package is voluntary and at the customer's expense.
The high altitude field conversion packages and procedures outlined below have been authorized in the following 1984 non-altitude equipped engine
families in service at altitudes above 4,000 feet above sea level.
CONVERSION INSTRUCTIONS
Sea Level to High Altitude
Altitude performance improvement adjustments for 1984 model year Ram-50 and Power Ram-50 trucks are as follows:
Gasoline Fueled Vehicles
1.
Advance basic timing as outlined below using the procedure in the 1984 Ram-50 service manual.
Engine
Low Altitude
High Altitude
2.0L
5~ +/- 2~ BTDC
10~ +/- 2~ BTDC
2.6 L (All)
7~ +/- 2~ BTDC
12~ +/- 2~ BTDC
2.
Remove air cleaner cover from the air cleaner assembly.
FIGURE 1
