Trimatic Servicing

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Originally submitted by T:

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Trimatic Extension Housing showing the Park Pawl. Click to enlargen. Photo by TooL.

Servicing the Trimatic:

Special Tools and Equipment:

Many special tools are required to perform a full rebuild of a Trimatic so it is best left to a transmission ace in a clean room environment, but a number of simple steps can be followed to keep a Trimatic in top form.    

     
     
 
Trimatic modified to take roller bearings instead of bushing. Click to enlargen. Photo by merc9112006.
 
Trimatic Valve Body. Click to enlargen. Photo by merc9112006.

 
Trimatic Planetary Gearset. Click to enlargen. Photo by merc9112006.

 
The Speedo Driving Gear is retained by a Thumb Clip. Click to enlargen. Photo by TooL.

 
The Speedo Driven Gear is held in place by a single bolt accessible from outside the Gearbox. Click to enlargen. Photo by TooL.
 
The short Detent Retainer Pin can be seen hanging down to the left of the Kickdown Solenoid. Click to enlargen. Photo by TooL.
Trimatic Drum and Reverse Gear Clutch Pack. Click to enlargen. Photo by Bubsy.
 
 
Trimatic Casing with the Gearset and Clutch Packs removed. Click to enlargen. Photo by Bubsy.
Side view of a Trimatic Casing . Click to enlargen. Photo by Bubsy.

 
3 clicks are about aligning the Turbine first (smallest and innermost Spline) , the Stator second click (middle Spline) and the Oil Pump third click (large pair of Teeth on the outside).  Click to Enlargen. Photo by HQ_SS.
 Image:Trimatic_025.JPG  
Offside Selector Lever Seal Housing in a Trimatic Gearbox. Photo by 383HGBrougham. Click to Enlargen.
 
Trimatic 2nd Gear Clutch with 6 frictions and the sequence the hubs are fitted in the case. Click to Enlargen. Photo by DaveEH.
 
The two Clutch Packs and Drums reassembled together. Click to Enlargen. Photo by DaveEH.
 
The Clutch Units back in the Box and the Reverse Clutch Plates fitted around them in the Case ready for the Pump and Bellhousing to go back on. Click to Enlargen. Photo by DaveEH.
   
Here is the V8 Input Shaft with 3rd Gear Clutch with 5 Friction Plates and the 1st Gear Sprag:. Click to Enlargen. Photo by DaveEH.
 

 

Links:

383HGBrougham's Shed

Parts

Terms:

Terms

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