Installing a selector shaft seal on a Ford AOD transmission is a common repair service addressing fluid leakages at the change affiliation entrance factor. This treatment calls for mindful execution to stop damages and make sure a trusted seal. Below is a professional guide describing the essential actions and factors to consider. Always focus on safety and security: guarantee the transmission is awesome, the car is safely supported on jack stands, and the emergency brake is involved prior to commencing work.
(how to install selector shaft seal on ford aod transmission)
** Called For Tools and Materials: ** New selector shaft seal (Ford spec or equivalent high quality), transmission fluid (Mercon or Dexron III), socket set and wrenches (including a 13mm or 1/2″ wrench/socket generally for the shift bar nut), flat-head screwdriver or tiny pry bar (made use of cautiously), seal elimination tool (little hook or pick), lint-free rags, brake cleaner or equal solvent, shatterproof glass, and gloves.
** Procedure: **.
1. ** Access the Selector Shaft: ** Locate the selector shaft on the chauffeur’s side of the transmission case. It links to the change linkage using a lever and preserving pin. You may require to get rid of parts like the exhaust crossover pipe, heat shields, or link parts for adequate access and clearance. Document affiliation settings if interference is essential.
2. ** Remove the Change Lever: ** Determine the nut protecting the change lever to the selector shaft. Meticulously eliminate this nut using the appropriate outlet or wrench. The shift lever is retained on the selector shaft by a little roll pin. This pin is delicate. Using an ideal strike or pin drift, carefully touch the roll pin out. Do not hammer forcefully; too much effect can misshape the shaft or bar. Once the pin is removed, slide the change lever off the selector shaft splines. Secure the splines from damages.
3. ** Eliminate the Old Seal: ** Completely clean the area around the old seal with brake cleaner and lint-free cloths. Examine the seal. Using a little seal elimination hook or pick, very carefully function around the seal’s external metal instance. Hook behind the steel instance and gently pry the seal straight out. Prevent damaging or gouging the machined seal bore in the transmission situation. Any damages to this bore will certainly compromise the brand-new seal’s ability to work. Eliminate all remnants of the old seal and tidy the recess thoroughly. Make sure the sealing surface area on the selector shaft itself is smooth and free of nicks, burrs, or too much wear; small blemishes can be polished with great emery cloth.
4. ** Prepare and Install the New Seal: ** Clean the brand-new seal and gently lubricate its outer diameter (OD) with fresh transmission liquid. Lube the internal securing lip kindly with transmission liquid. This lubrication is important for first sealing and avoiding damage during shaft turning. Guarantee the seal is oriented correctly: the level side (generally with any kind of part number) encounters exterior, and the spring-loaded securing lip faces internal in the direction of the transmission liquid. Position the seal squarely over the birthed. Utilizing a seal motorist or a socket of the exact diameter matching the seal’s external case (do NOT make use of a socket smaller than the seal OD), delicately tap the seal right into location. Drive it in equally and completely until it seats strongly and directly against the shoulder in the birthed. Prevent cocking the seal. Do not drive the seal in by its internal lip, as this will certainly ruin it. Make sure the seal is flush with or slightly listed below the transmission case surface.
5. ** Reinstall the Shift Lever: ** Meticulously move the shift lever back onto the selector shaft splines, aligning the hole for the roll pin. Insert the brand-new roll pin (very advised to change the old one) right into the bar and shaft. Making use of a strike, delicately tap the brand-new roll pin up until it is fully seated and flush on both sides. Re-install the change lever maintaining nut and torque it to the supplier’s specification (generally in the series of 10-15 ft-lbs; get in touch with a service manual if readily available). Stay clear of overtightening.
6. ** Reconnect Linkage & Refill Fluid: ** Reconnect any kind of change linkage or cables got rid of earlier, making certain correct adjustment according to service treatments. Double-check all connections. Prior to beginning the engine, examine the transmission fluid level. Considerable fluid loss usually happens throughout this procedure. Include the proper kind and amount of transmission liquid with the dipstick tube to bring the degree to the right operating array (check when cozy and idling in Park on level ground). Do not overfill.
7. ** Final Checks: ** Begin the engine and permit the transmission to reach running temperature. Cycle the selector lever slowly and purposely via all equipment settings (P-R-N-D-2-1), pausing briefly in each. Verify smooth changing procedure which the transmission engages appropriately. Very carefully inspect the newly mounted selector shaft seal area for any signs of leak. Reinstall any exhaust elements or thermal barrier eliminated for accessibility. Lower the vehicle securely.
(how to install selector shaft seal on ford aod transmission)
** Trick Factors To Consider: ** Utilize just high-quality substitute seals created for the Ford AOD transmission. RTV or various other sealers are not called for or suggested on the seal OD for this application. Precise tidiness throughout installment is extremely important to prevent contamination access. Deal with the roll pin with severe care to avoid breakage. Proper lubrication of the brand-new seal lip is non-negotiable for longevity. Validating appropriate shift bar procedure and the lack of leakages post-repair is vital. If leakages linger or shifting is irregular, re-inspect the installation or seek specialist medical diagnosis. This procedure, while uncomplicated for an experienced technician, needs interest to detail to make sure a long lasting repair service.