Accord 1984-89, Prelude 1984-87
1. Front and rear main oil seals are held on the crankshaft by end caps; they are released and removed with the crankshaft. When assembling, apply non-hardening grease at the seams where the cover joins the block before installing the glands. The crankshaft and caps should be in place, although the end cap bolts should not be fully tightened until the seals are in place.
2. Apply a light coat of lubricant to the sealing surfaces of both glands. Pack the back of each seal with grease to hold the spring in place during installation.
3. Use a drift of the correct diameter and remove a tool, such as a Honda tool 07947-SB00200 or similar, install the oil seal from the pulley side. The oil seal must be installed with the part number outward.
4. Use a drift of the correct diameter and a Honda type tool 07948-SB00101, install the rear oil seal (flywheel side). Align the hole in the drift to insert the cotter pin onto the crankshaft. Insert the gland until the base of the punch is on the block.
5. Tighten the remaining crankshaft bearing caps to specification.
Accord 1990-91, Prelude 1988-91
The rear oil seal on these engines is located inside a separate housing at the rear of the engine. The gland can be easily removed with the casing or right cover removed. Coat the seal faces with a light coat of clean oil. Install the seal using a punch. Install the right cover, tighten the bolts to 12 Nm.