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If you suddenly lose compression in one cylinder, the vacuum nee…

If you suddenly lose compression in one cylinder, the vacuum needle's dancing around, and the engine's sputtering, this is a quick thing to check. The rocker arm wasn't torqued down properly and hopped off the push rod. No damage done, and an easy fix!
If you suddenly lose compression in one cylinder, the vacuum needle's dancing around, and the engine's sputtering, this is a quick thing to check. The rocker arm wasn't torqued down properly and hopped off the push rod. No damage done, and an easy fix!Original file
If you suddenly lose compression in one cylinder, the vacuum needle's dancing around, and the engine's sputtering, this is a quick thing to check. The rocker arm wasn't torqued down properly and hopped off the push rod. No damage done, and an easy fix!

HeadworkView all 46

Engine cylinder head with visible springs and bolts Engine cylinder head with valve springs visible, part of an engine rebuild close-up of an engine's cylinder head with valve springs visible Engine cylinder head with valve springs and bolts, viewed from above Close-up of an engine cylinder head showing valve springs and pushrods engine valve springs and pushrods on a cylinder head Engine cylinder head with valve springs and pushrods visible Engine cylinder head with valve springs and pushrods visible Cylinder head with valve cover off showing valve springs and stamped rocker arms Close-up of engine valve train with rocker arms and springs visible Engine lifters and springs on a black metal surface with engine components in the background Offenhauser Dual-Port 360 intake manifold on inline six with valve cover removed Close-up of an engine's cylinder head with Offenhauser Dual-Port intake manifold. Carburetor mounting plate is Close-up of engine valve train with rocker arms and valve springs visible 1981 Ford Bronco photo 1981 Ford Bronco photo 46photos in this albumView all

If you suddenly lose compression in one cylinder, the vacuum needle's dancing around, and the engine's sputtering, this is a quick thing to check.
The rocker arm wasn't torqued down properly and hopped off the push rod.

No damage done, and an easy fix!

Owner caption · Photo 671 of 1562

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