Valve guides
Cylinder Heads

Valve guide wear-What to fix and why?

April 8, 2017

Valve guide wear refers to excessive clearance between valve stem and valve guide. As guides wear, the side to side movement can cause valves to seat improperly. Valve leakage causing compression loss is another reason […]

Head cracked
Cylinder Heads

Cylinder head cracking-What can cause it ?

March 14, 2017

Cylinder head cracking can result in catastrophic damage to the engine. In some cases, cylinder head cracking may be so severe that replacing the complete engine is the only cure. The causes of cylinder head […]

Rocker arm dislodging
Cylinder Heads

Rocker arm dislodging with valve seat falling out

February 20, 2017

Have you ever had a customer come in and complain of a poor running engine? After diagnosing it you find engine misfire codes. To narrow down the issue you do a compression test or cylinder leak down test. […]

Valve Lash Setting
Cylinder Heads

Valve lash setting and adjustment

February 18, 2017

The term “valve lash” is often used when discussing valve train adjustment. A valve lifter (sometimes referred to as a tappet or cam follower) follows the contour of the camshaft lobe and transfers that motion to open […]

bent-pushrods
Cylinder Heads

Pushrods on G.M. 3.1 and 3.4 engines FAQ

May 5, 2016

Exhaust and Intake Pushrods on G.M. 3.1 and 3.4 engines are different lengths.  Quite often I am seeing bent pushrods and valves when they are mixed up. Exhaust pushrods on G.M. 3.1 and 3.4 engines […]

install valve seat
Cylinder Heads

How to install and grind valve seats

December 17, 2015

Learning how to install and grind valve seats can help solve oil burning issues. The growth in the valves seat insert market can be traced back to the early 1970s. This is when the switch […]