Tests to measure iron levels include: 1  Serum iron. 2  This test measures the amount of iron in your blood. 3  The level of iron in your blood may be normal even if the total amount of iron in your body is low. 4  For this reason, other iron tests also are done. 5  Serum ferritin.
one symptom of a cracked manifold will be a visible crack that you can see on the manifold s surface to look for a crack look closely at the manifold particularly where it bolts up to the motor and where the most heat will be
With the manifold off, carefully scrape all gasket-mounting surfaces clean of dirt and bits of the old gasket. Do not allow particles to fall into the manifold or the cylinder head. Check the manifold to see that it is not cracked or damaged; check its face with a straight edge â such as a steel ruler â to see that it is not warped.