Trimatic Kickdown

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Page created by T Mar 16th 2014:

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Cable Kickdown Adjustment. The difference between the amount of protruding Kickdown Cable at Full Throttle and Idle should 8.13mm. Adjust the Outer Cable adjusting Nuts until this measurement has been obtained. The yellow Arrow shows the Nuts to use. Click to Enlargen. Photo by Ayios.

Trimatic Kickdown:

Trimatic Kickdown describes the process of forcing a changedown from the current gear to a lower gear, either 2nd or 1st. Kickdown is performed by pressing the accelerator pedal hard to the floor in Drive. A Kickdown can occur in Top gear. A Kickdown can occur in 2nd gear.

Kickdown Types:

Early Kickdown was done by cable. Late Kickdown was done electrically.

Cable Kickdown:

HG - early HQ Six Cylinder. The earliest Trimatics had  the contoured lower service cover and used a Mechanical Cable to activate the Kickdown. Trimatics were Cable Kickdown until mid HQ.

Cable Kickdown Adjustment:

The difference between the amount of protruding Kickdown Cable at Full Throttle and Idle should 8.13mm.  Adjust the Outer Cable adjusting Nuts until this measurement has been obtained.  

Solenoid Kickdown:

Late HQ Six Cylinder onwards. Early Trimatics had  a contoured lower service cover and used an Electrical Solenoid to activate the Kickdown. Trimatics were Electric Kickdown from mid HQ on.

Factory HG Premiere Cable Trimatic Kickdown mechanism. Click to Enlargen. Photo by Ayios.
Trimatic with Cable Kickdown mechanism. Click to Enlargen. Photo by Ayios.
Cable Kickdown mechanism. Click to Enlargen. Photo by Mechatron.

 

Factory HG Premiere Cable Trimatic Kickdown mechanism. Click to Enlargen. Photo by Ayios.
Late HG to early HJ electric Kickdown Accelerator Pedal. Click to Enlargen. Photo by HQ_SS.
Late HG to early HJ electric Kickdown Switch. Click to Enlargen. Photo by ASHMONKEY.
Trimatic with Cable Kickdown mechanism. Click to Enlargen. Photo by Ayios.
Late HJ - HZ electric Kickdown mechanism. Click to Enlargen. Photo by HQ_SS.
Late HG to early HJ electric Kickdown Accelerator Pedal. Click to Enlargen. Photo by HQ_SS.
Factory HG 6 Cly Trimatic with Cable Kickdown mechanism.  Click to Enlargen. Photo by Ayios.
HQ 253 Trimatic. The Electric Kickdown Connector is circled. Photo by Munromad. Click to Enlargen.
Late HJ - HZ electric Kickdown mechanism. Click to Enlargen. Photo by HQ_SS.
Cable Kickdown on an HG Trimatic. Click to Enlargen. Photo by Lyndon Johnston.
Factory HG Premiere Cable Kickdown Trimatic 253 showing the centre oil filler neck. Click to Enlargen. Photo by Ayios.
Late HG to early HJ electric Kickdown Accelerator Pedal. Click to Enlargen. Photo by HQ_SS.
Late HJ - HZ electric Kickdown mechanism. Click to Enlargen. Photo by HQ_SS.
 

 

     

Automatic Transmission accelerator kick down switch (officially called a Solenoid Detent Actuating Switch) for HQ and HJ only. HX and HZ had a different switch. Click to Enlargen. Photo by keijames.

Links:

HG383Brougham's Shed

HQ_SS' Shed

Terms:

Terms

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