You must visually inspect for cracks, stripped bolt-hole threads, spun extension housing bushings, and previous repairs such as welds. This makes things very simple and helps keep the cost down. Once the plate was welded, we used the firewall to mark the location of the pedal coming through. Step 3: Inspect Combs Inspect the detent comb for wear. Spun bushings are rare, but if your bushing has fallen out from spinning and damaging its bore , you need a new extension. All documented M22 transmissions have the 3925660 main case.
This gets cut to fit from under the dash. A gasket is necessary to maintain the gap between the retainer and case. The reverse shifter shaft boss is damaged on most from people trying to remove a seized tapered lock pin. The valley in the center of the sleeve is a normal place for oil to collect. Types of Bearings Many companies are selling maximum-capacity bearings containing more balls. People often beat on it with a hammer and spread the end open, but then it binds on the pilot. Its engagement teeth have straight shoulders.
Lower the mainshaft assembly into the case making 18. This level of wear can cause a falling out of gear issue and a sloppy shift-feel. Mounting the transmission to the engine is straightforward, but adding the master cylinder to the firewall is a little more complicated. You have to grind out a portion of the lower end to free up the pin. Install the fourth speed synchronizing ring on main into position with a soft hammer.
If this happens to you, you can use a hacksaw and slice down until you can lift the pin out. When choosing a rear bearing, make sure that the inner ring has a wide enough surface for the first gear to thrust against; this is a common oversight. In our Chevelle, the crossmember and driveshaft are matched to the Muncie already, so there is no need to replace either. Some have a boss for the switch that is cast but not machined on 1-2. The difference is that with a restoration you restore all components as well as possible to their original specifications and look, which takes time, patience, and attention to many different details. The right ring is at a normal height. Step 2: Replace Pin The pin that holds the detent cams on this cover has no hat so it can fall in.
With the guide pin in rear bearing retainer aligned retainer. Check bushings for excessive wear by using a nar- gag: 73:5? Prelubricate seal between lips with cup grease. Gears, Synchros and Shafts Low oil level is the most common cause of premature synchro wear, gear wear, and component failure. Synchronizers Check for chipped or damaged slider teeth. Never use an abrasive wheel or a sanding disc attached to an orbital grinder. You should remove the magnet and invest in magnetic fill and drain plugs. You should select the correct bearings for your transmission to maximize performance.
Tubular engine mount design allows for increased header clearance and a more practical engine pad. Make note of this measurement, which we called B. This Tech Tip is From the Full Book,. Install 6 extension and retainer-to- case attaching tainers, using a suitable sealer on bolts. The rear bearing is a standard-size bearing and is available from just about any ball bearing manufacturer.
The result is how many spacers you need. Synchro rings crack at the key slots, flatten, and spin out of the keys. Install the reverse gear shift collar to rear. The master cylinder bracket has a backing plate that goes on the inside of the car, sandwiching the plate, so there are no worries about the firewall flexing. New sliders are tapered and universal.
To ensure the bearing has the right clearance to the clutch diaphragm, some measurements are needed. If you are doing this for the first time, remember that there is a huge difference between a restoration and a plain rebuild. Hub splines should be even and free from burrs. Front bearings can explode, spin, and damage the front bearing bore. If the locating groove is stretched, the whole output shaft can move back and forth, which crushes the fourth-gear synchro ring and causes falling-out-of-gear issues. Nothing will work well if they are bent, twisted, or misaligned. Here is a quick spline-groove identification chart: 1963-'65 M20 2.