Dipstick

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The Oil Level Gauge, commonly called a Dipstick, differs between early and late A12 engines.

Overview

Early type goes directly into block (1967-1973)

Late type goes into a tube which is inserted into block (1973-up)

The H50 gauge is used by B210 and B310 A12/A14/A15/A12A

H10 version is used by front-distributor engines, including A10 and early A12.

B110 USA
11140-H1002 GAUGE-OIL LEVEL A12
11140-H1003 GAUGE-OIL LEVEL A12 0271- 2 11140-H1002

B210 USA
15146-H5001 GUIDE-OIL LEVEL GAUGE
11140-H5001 GAUGE-OIL LEVEL -0275 5 11140-H5001
11140-H7200 GAUGE-OIL LEVEL 0375- 4/5 11140-H5001

FWD

FWD A-series engines use a totally different dipstick.

F10 USA
11140-M3001 ASSY-GAUGE,OIL LEVEL -1076
11140-M4965 ASSY-GAUGE,OIL LEVEL 1076- Y 11140-M3001
11145-M3001 ASSY-GUIDE,OIL LEVEL -1076
11145-M4966 ASSY-GUIDE,OIL LEVEL 1076- Y 11145-M3001
11146-M3000 ASSY-SUPPORT,OIL LEV

Oil Level

Oil should be between H and L marks.

Marks are the same for early (H10) vs late (H50) gauges, even though the overal gauge length differs. That's because they use the same oil pan! The oil level from the bottom of the pan is what is important.

Tube Removal

Use vice-grips and tap it up and out while twisting back and forth.