SCREW TAPPET ADJUSTING

EARLY MBMBM201CJ2ACJ3AM38M38A1GPWCJ3B
Manual available
11,41 €
BTW: 1,98 €
SKU:  WO640020
GTIN (EAN,ISBN): 17.2

Engine Valve Tappet Adjuster Screws.
Fits Jeep MB, GPW, M201, M38, CJ2, CJ3A, CJ3AB, M38A1 & CJ5 (8 per engine).
Also fits DODGE WC, T214 engine (12 per engine)

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War Dept specs from the original Technical Manual — click to open

Tappet adjusting screw

For 4-cylinder L-134 Go Devil engine

Adjusting screw for the valve tappet, essential component for correct valve clearance. The screw is threaded into the lifter and enables adjustment of the valves to specification.

Thread pitch

24 TPI (threads per inch)

Application

Valve tappet (tappet/lifter)

Engine

4-cylinder L-134 flathead

Quantity required

8 pieces per engine

Features

  • Adjusting screw for tappet (lifter)
  • 24 threads per inch (24 TPI)
  • 8 pieces required for a complete L-134 engine
  • Enables precise valve adjustment
  • Interference fit — tight fit in the lifter

★ Replaces worn or damaged adjusting screws and ensures correct valve clearance.

Installation notes

The adjusting screw is threaded into the lifter and can only be replaced by removing the cylinder head and withdrawing the relevant valve. When adjusting valve clearance: rotating one hexagon flat corresponds to 0.007" (0.18 mm) change in valve clearance. Normal adjustment for the L-134: 0.014" to 0.016" (0.36-0.41 mm) valve clearance.

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

Restoration part — not a ready-to-fit product

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.

COMPATIBLE_MODELS EARLY MB, MB, M201, GPW, CJ2A, CJ3A, CJ3B, M38, M38A1
ALL_CATEGORIES : Upper Engine CJ2A, Upper Engine Valve CJ2A, Upper Engine Valve CJ3A, Camshaft pinion CJ3A, Upper Engine M38, Upper Engine Valve M38, Camshaft pinion CJ3B, Upper Engine Valve CJ3B

This part fits:

ModelYears
Military jeeps
Willys MB (early)1941, 1942
Willys MB1942, 1943, 1944, 1945
Ford GPW1942, 1943, 1944, 1945
Hotchkiss M2011956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966
Willys M381950, 1951, 1952
Willys M38A11952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971
CJ series
Jeep CJ-2A1945, 1946, 1947, 1948, 1949
Jeep CJ-3A1949, 1950, 1951, 1952, 1953
Jeep CJ-3B1953, 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)

Group 10-08 — Valves, Valve Guides and Springs
Group 10-08 — Valves, Valve Guides and Springs
Page 24–24
Group 10-11 — Camshaft, Chain and Sprockets
Group 10-11 — Camshaft, Chain and Sprockets
Page 25–25