Question

When using a compression tester, the readings on the cylinders are all even, but lower than spec. this could indicate:

-blown head gasket,
-carbon buildup,
-cracked head,
-worn rings and cylinders,

Answer 1

The lower compression readings on all cylinders could indicate a blown head gasket, carbon buildup, or worn rings and cylinders in the engine.

Step-by-step explanation:

The lower compression readings on all cylinders indicate several possible issues with the engine:

1. Blown head gasket: A blown head gasket can cause low compression readings by allowing the compression gases to escape between the cylinders. This can result in even compression readings across all cylinders.
2. Carbon buildup: Carbon deposits can accumulate on the piston rings and cylinder walls, causing them to seal poorly. This can lead to lower compression readings on all cylinders.
3. Worn rings and cylinders: Over time, the piston rings and cylinder walls can wear, preventing a tight seal. This can result in lower compression readings across all cylinders.

It is important to further diagnose the issue to determine the exact cause of the lower compression readings.