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M/T - Gear Clash and Hard Shifting


87ford17

^ CLUTCH (HYDRAULIC) - PEDAL DOES NOT Article No.
FULLY RETURN - DIAGNOSTIC TIPS 87-16-15

^ TRANSMISSION - MANUAL - GEAR CLASH AND HARD SHIFTING

^ SPEED CONTROL - INOPERATIVE - LOW CLUTCH PEDAL ALLOWS SWITCH CIRCUIT TO REMAIN OPEN


LIGHT TRUCK: 1984-87 F-150/350, BRONCO

ISSUE: A clutch pedal not fully returning to contact the rubber bumper at the "up" stop may result in any of the following conditions.

^ Transmission gear clash or hard shifting or failure to release into or from gear (particularly reverse and 1st gear) because clutch pedal stroke length is decreased, causing low pedal reserve.

^ Clutch pedal may sometimes stick near the TOP of the stroke, requiring driver to "tip" the pedal with his/her foot in order to get pedal to further return.

^ Speed control is inoperative, due to pedal not returning and permitting "shut off" switch circuit to remain in the open position, i.e., clutch disengaged mode.

ACTION: To determine if a new cross-shaft lever is required, use the following diagnostic and servicing procedure.

1. Check under the dash area to be certain that the clutch pedal system has no wiring looms which interfere with pedal return, at the interlock switch rod and the end of the master cylinder pushrod.

Figure 7:





2. Determine if the clutch master cylinder pushrod and lever pin are correctly aligned by disconnecting the pushrod and seeing if it will reassemble to the pin WITHOUT DEPRESSING THE PUSHROD OR DEPRESSING THE CLUTCH PEDAL. (When the pushrod is disconnected from the pin, the clutch master cylinder piston is fully retracted (rearward) and the clutch pedal blade is contacting the rubber bumper stop), see Figure 7.

3. If the two components are not in alignment, perform the following IN THIS EXACT SEQUENCE:

a. Loosen the clutch pedal attaching nut (left hand side).

b. Reinstall the clutch master cylinder pushrod to the cross-shaft lever pin.

c. Tighten the clutch pedal attaching nut (left hand side).

d. Stroke the clutch pedal several times to reset the position of the shaft to the pedal slot, THIS STEP IS REQUIRED!

e. Again, remove the clutch master cylinder pushrod from the lever pin and check the alignment. If the two (2) components are still not in alignment, replace the crossshaft lever.

NOTE: If the pushrod is aligned with the pin, no further action is required.

Cross-Shaft Lever Replacement

Removal

1. Disconnect the master cylinder pushrod from the cross-shaft lever pin.

1984-86 Vehicles

Remove the clevis pin. Carefully pull the pushrod from the lever.

1987 Vehicles

Disconnect the snap-in bushing by wedging a small screwdriver or putty knife between the lever and the bushing. When the bushing tangs are free at the pin groove, carefully pull the pushrod from the lever.

2. Remove the attaching nut.

3. Remove the lever from the cross-shaft, using a pry tool or puller.


Installation

NOTE: The proper position of clutch master cylinder pushrod relative to the crossshaft lever (7A554) pin is controlled by this installation PROCEDURE. Therefore, ONLY the following steps should be used.

1. Install the new lever (pin) to the clutch master cylinder pushrod bushing.

2. Install the lever onto the cross-shaft.

3. Install the attaching nut, finger tight.

4. Inspect pedal position to make sure it is against the "up" stop.

5. Tighten the attaching nut. This will permit the knurled teeth on the shaft to cut matching teeth in lever, which then results in the correct positioning of the two (2) components.

NOTE: The above procedure is the preferred method of "adjusting" master cylinder pushrod length. Frequently, the master cylinder is replaced or adjustable pushrods are installed to obtain the required pushrod to lever positioning. Cross-shaft lever replacement is a more efficient method and eliminates the potential of pushrod mis-adjustment and introducing air or contamination into the hydraulic system.

CROSS-SHAFT LEVER APPLICATION

Model Year Truck Series Part Number

1984-86 F Series, Bronco E4TZ-7A554-A
1987 F Series, Bronco E7TZ-7A554-A

PART NUMBER PART NAME CLASS

E4TZ-7A554-A Cross-Shaft Lever B
E7TZ-7A554-A Cross-Shaft Lever B

OTHER APPLICABLE ARTICLES: 85-1-20, 85-5-24, 85-5-26
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual
OPERATION: SP871615A - Align clutch master cylinder pushrod and cross-shaft lever pin
TIME: 0.4 Hr. - 6.9L diesel 0.3 Hr. - All others

OPERATION: SP871615B - Replace cross-shaft lever (includes time to perform previous alignment)
TIME: 0.6 Hr. - 6.9L diesel 0.5 Hr. - All others DLR. CODING: Basic Part No. 7A554 - Code: 07