Workshop Manual Updates
83renault18E023
MARCH 1983
L42-M42
ENGINE - ELECTRICAL Attention: Workshop, Parts Department
UPDATE AND REVISION FOR WORKSHOP MANUAL
1. ENGINE LIFTING BRACKETS
2. COOLING FAN (THERMAL) SWITCH SPECIFICATIONS
3. COOLANT TEMPERATURE GAUGE DIAGNOSIS
1. ENGINE LIFTING BRACKETS
The engine lifting method for L42-M42 models has been revised to include the installation and use of engine lifting brackets. Whenever it is necessary to remove the engine from these models, refer to the updated procedure in this I.S. Note. Please make a note of this information on page B-18 of your M.R. 240 manual.
NOTE: An initial distribution consisting of one set of lifting brackets will be provided to all dealers.
FIGURE 1 - LIFTING BRACKET INSTALLED ON EXHAUST MANIFOLD:
PROCEDURE
1. Prepare the engine for removal as outlined on pages B-16, B-17, and B-18 of the M.R. 240 manual.
2. On models without cruise control, move the fuel line and bracket and attach engine lifting bracket 77 00 701 610 to the exhaust manifold (Fig. 1). On models with cruise control, remove the cruise control cable bracket and install the engine lifting bracket in place of the cruise control cable bracket (Fig. 1).
FIGURE 2 - LIFTING BRACKET INSTALLED ON CYLINDER HEAD:
3. Remove the coil wire bracket and install engine lifting bracket 77 00 633 037 in place of the coil wire bracket (Fig. 2).
4. Attach an engine lifting chain to the two engine lifting brackets.
5. Complete engine removal as outlined in the M.R. 240 manual.
PARTS
The initial distribution of lifting brackets will be on a no charge basis. However, dealers will be billed for any additional sets of lifting brackets ordered after initial distribution.
Description Quantity Part Number
BRACKET, Engine Lifting 1 77 00 701 610
(Exhaust Manifold)
BRACKET, Engine Lifting 1 77 00 633 037
(Cylinder Head)
S.R.T. INFORMATION
Not affected.
2. COOLING FAN (THERMAL) SWITCH SPECIFICATIONS
The test temperature specifications and location of the cooling fan (thermal) switch described on page C-57 of the M.R. 240 manual have been revised.
Refer to the revised specifications and switch locations provided in this I.S. Note. Please make a note of this information on page C-57 of your M.R. 240 workshop manual.
Switch Location
With automatic transmission: Switch is in passenger side inlet tank of radiator (facing grille). (with or without A/C)
With air conditioning: Switch is in passenger side inlet tank of radiator (facing grille). (with manual or auto. trans.)
With manual transmission: Switch is in driver's side inlet tank of radiator (facing engine). (without A/C)
Switch Test Procedure
The test procedure described on page C-57 remains unchanged. Only the test temperature specifications and switch locations are changed.
Test Temperature Specifications
- Switch in passenger side of radiator inlet tank:
Contacts close (fan on) @ 88~C +/- 1.5~ (190~F +/- 5~) Contacts open (fan off) @ 77~C minimum (170~F)
- Switch in driver's side of radiator inlet tank:
Contacts close (fan on) @ 102~C +/- 1.5~ (217~F +/- 5~) Contacts open (fan off) @ 94~C minimum (201~F)
FIGURE 3 - RESISTOR BOARD LOCATION:
3. COOLANT TEMPERATURE GAUGE DIAGNOSIS
An external resistor is used with the coolant temperature gauge in L42-M42 models built prior to sequence number W018867. This resistor is attached to the gauge terminal studs at the back of the instrument cluster (Fig. 3).
If the nuts that attach the resistor to the terminal studs are not tight, the resulting poor connection can cause the gauge to be inoperative or erratic.
If either of these problems occur, do not replace the gauge without first checking the tightness of these nuts. Also make sure there are good connections between the sending unit and gauge.
NOTE: The gauges used in L42-M42 models built after the sequence number above are not equipped with an external resistor.