Cylinder Head 105 - Valve Job Basics
Valves not sealing? Valves not bent? This is how you fix that problem.
In this video I outline the basic valve job procedure. Cleaning the
valves, cleaning the seats, cleaning the combustion chamber and lapping the
valves in to make a better seal.
Here I cover the process start-to-finish. It's the same exact process for
pretty much all non-rotary combustion engines. It takes patience and
perseverance to do this job, but anyone can do it. Reference your service
manual for measurements and service limits. Everything else that's not in
your service manual is in this video.
I apologize for not having broken busted crap to work with in this video.
It's more beneficial to all of you when bad fortune falls on me because it
gets well documented, and many people watching these videos are looking for
answers. If you have bent valves, you will discover it quickly once you
chuck one up in the drill. You'll see the face of the valve wobble around
while it spins. You'll see evidence of this damage on the valve seat. If
it's bad, you may see damage on the valve guides in the form of cracks or
missing pieces where the valve guides protrude through the head ports.
Give all that stuff a good visual inspection. ...and if you doubt yourself,
never hesitate to get a second opinion or consult a machine shop. They
will have access to expensive tools that you wont find in your average
Volvo Engine head porting / port matching prep work !
Music : Mr oizo and Gaspard Augé "tricyle express"
Step two in the project :
Gasket matching is a good way to improve the flow in your head (engine
heads only) and to avoid the bad turbulences where they are not supposed to
be : between parts.
It's the first step in your porting job that you should think about ,and do
with your brain and hands.
The castings patterns are often quite "bad quality" (or i should say the
consequence of the application of a mass production process ) and it's the
way to start this kind of job.
324 Oldsmobile Cracked Cylinder Head Repair
This Oldsmobile 324 Rocket cylinder head has a crack, watch John Edwards as
he repairs is at Costa Mesa R&D Automotive Machine. (949) 631-6376 Be sure
to "Click" and SUBSCRIBE.
a problem with my head?
yes ok, i admit it, i broke it. but it is only the one valve. atleast you
get to have a look at the engine as its been torn down a bit, i have got
lost of clean shiny and painted bits to go on and make it lovely