Overview
The Crown Automotive J0630365 is a timing cover gasket for 134 4 cylinder L or F head engines. It seals the timing cover to the engine block and fits early Jeep CJ and Willys models from 1941 to 1971.
It is a gasket only, so the timing cover itself is not included.
Key features
- Gasket only
- Fits 134 4 cylinder L or F head engines
- Covers CJ3, CJ5 and Willys CJ-2, CJ-3, CJ-5 and MB models
- Replacement part from Crown Automotive
Gasket fit and surfaces
A timing cover gasket sits between two machined faces, so its job depends on clean, flat surfaces. Small high spots or old material can cause seepage even on a new gasket, so take time with the prep before bolting the cover down.
Older Jeep and Willys engines often carry layers of hardened sealant from earlier repairs. Remove it with a plastic scraper and a solvent that suits the metal, and avoid gouging the block or cover. Check the cover’s bolt holes for debris. Keep track of bolt lengths as you remove them, since mixed lengths can cause leaks.
Tighten the cover bolts evenly and in sequence, then recheck them after the engine has warmed and cooled. Oil leaks at the cover edge are usually a sign that the surfaces or bolt pressure need attention.
- Clean both sealing faces until flat
- Tighten bolts evenly in sequence
- Recheck torque after the engine warms
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | J0630365 |
| UPC | 848399051681 |
| Engine | 134 4 cylinder L or F head |
| Included | Gasket only |
| Fitment type | Direct fit |
Vehicle fitment
It fits 1941 to 1971 vehicles: 1959 to 1960 CJ3, 1959 to 1971 CJ5, Willys CJ-2 (1946 to 1949), CJ-3 (1949 to 1958), CJ-5 (1955 to 1958) and MB (1941 to 1942).
Models after 1971, such as the CJ7 and the Wrangler, are not on the list. Confirm your vehicle’s year, model and trim before ordering.
What’s included
Gasket only.
Not included: The timing cover and other engine parts.
