SLEEVE BLOCK CYLINDER ENGINE +0.020 INCH (0.50mm)
Cylinder sleeve engine block +0.020 inch (0.50 mm)
Semi-finished, professional fitting required
Cylinder sleeve for restoration of worn or damaged engine blocks of jeeps fitted with L-134 Go Devil engine. This sleeve has an oversize of +0.020 inch (0.50 mm) and enables an engine block that has been previously bored to be returned to standard size. Supplied semi-finished and requires professional machining and press fitting by an engine specialist.
|
Material Centrifugally cast iron |
Oversize +0.020 inch (0.50 mm) |
|
Type Dry cylinder sleeve (dry sleeve) |
Finish Semi-finished, machining required |
Features
- Oversize +0.020 inch (0.50 mm) on standard bore
- Suitable for L-134 flathead engine
- Centrifugally cast iron for high strength
- Requires press fitting with interference fit
- Must be bored and honed to final size after fitting
- Professional installation and finishing mandatory
★ High-quality cylinder sleeve for complete engine restoration. Enables salvaging an engine block that has already been bored through oversized boring and press-fitted sleeve. Essential for thorough engine overhaul.
Application
For jeeps fitted with L-134 (4-134) flathead engine where the engine block has previously been bored to +0.010" or +0.020" and is worn again. By boring the engine block 0.100" oversize, this sleeve can be press-fitted, after which the inside is finished to standard bore (3.125" / 79.4 mm). Use in combination with standard pistons and piston rings.
Installation notes
Fitting exclusively by professional engine specialist. The engine block must first be bored to exact oversize. Sleeve requires interference fit of approximately 0.0015" to 0.002" and must be fitted using press tooling or hydraulic press. Freezing the sleeve before fitting is recommended. After press fitting, the inside must be bored with torque plate to final size (3.125" / 79.4 mm) and honed according to specifications. Check cylindrical form and straightness after fitting.
Compatibility
IMPORTANT: This sleeve is ONLY suitable for engine blocks that have previously been bored to oversize and are worn or damaged again. Suitable for both chain-driven (early MB/GPW) and gear-driven (late CJ) variants of the L-134 engine. NOT suitable for F-134 overhead valve engine. Combine with standard (STD) pistons – NOT with oversize pistons.
Historical context
The L-134 "Go Devil" engine, developed by chief engineer Delmar "Barney" Roos, became the standard powerplant for all WWII jeeps and early civilian models. Cylinder sleeves were essential tooling for field maintenance and remain today the only option to salvage severely worn engine blocks for authentic restorations.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
⚠ Spotted an error in this description? Report it to info@willys.be
This part is intended for the restoration of historic military vehicles. Fitting, aligning, deburring or reworking is part of that work and is inherent to the nature of these goods. Dimensional variation also exists between original vehicles.
Installation requires technical knowledge of the vehicle. Unsure whether this part suits your version? Ask us before purchase at info@willys.be.
ALL_CATEGORIES : Piston,Rings & Bearings CJ2A, Pistons And Sleeve CJ3A, Piston,Rings & Bearings M38, Pistons And Sleeve - M38, Pistons And Sleeve CJ3B
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB (early) | 1941, 1942 |
| Willys MB | 1942, 1943, 1944, 1945 |
| Ford GPW (early) | 1942 |
| Ford GPW | 1942, 1943, 1944, 1945 |
| Hotchkiss M201 (early) | 1956, 1957, 1958, 1959 |
| Hotchkiss M201 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
| Willys M38 | 1950, 1951, 1952 |
| CJ series | |
| Jeep CJ-2A | 1945, 1946, 1947, 1948, 1949 |
| Jeep CJ-3A | 1949, 1950, 1951, 1952, 1953 |
| Jeep CJ-3B | 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968 |
📐 Diagrams & technical drawings
From the original Technical Manual CJ2A_PL_1949 — Parts List — only for Willys CJ-2A / CJ-3A (1949)
From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)
