In this video i'm explaining how to reseat or lap valves in a flathead or overhead valve engine. Also can be called a valve job, but this is not a complete valve job. I also used to much valve grinding compound, it does not require a whole lot. Usually when a engine needs this done is when a engine has low compression that is found to be leaking around the valves, or sometimes a engine will backfire do to the valves not closing completely/properly. Thanks for watching.
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
5 Horsepower Briggs Restoration Project and How to unseize pistons and valves
May be a while on the rest, just hang in there, I will eventually work on
this again, its just going to take alot of money to get it bored out and
sleeved, new valves, new piston/rings, new rod, everything! i found an old
briggs and stratton engine block with a thrown rod, seized piston and
valves. In this video i unseize the piston and valves, and remove them. And
begin the clean up process. Cylinder might have to bored. Also note, i said
on the video that i may need a new piston because of the stuck rings, not
necessarily true, because the rings should come off with no problem. Unless
the piston is scored or worn, it shouldn't need replaced. Thanks for
watching, and please subscribe!
How to lap valves on a 1995 Eclipse Talon 420a head (non-turbo)
When my 1995 eclipse timing belt broke I knew that there was a 99% chance
that the valves were bent in the process. I searched the internet for a
good way to replace them, without having much luck. I figured I would try
and come up with something myself, I figured I would document the whole
process of valve lapping by video...hope this helps you if you are in the
same bind as I was!!!
Briggs and Stratton Power Built 12.5 HP Flathead Model 28 Rebuild, Teardown / Reassembly PART 2
PART 2.... In this video i'm doing a teardown and rebuild of a Briggs and
Stratton Power Built 12.5 HP Flathead Model 28 Lawn Mower engine. Hope this
series helps you, be sure to watch the other parts. And the last part is
the first start of this motor after being rebuilt (not a complete break in
video, just the first few minutes of running and adjusting carburetor) The
only thing i left out was checking the ring gap clearance, which all you do
is put a new ring in the cylinder use the piston to push it down about a
half inch or so and use a feeler gauge to check the gap on the ring. Use
general safety rules when doing anything like this, it is extremely to
cut/smash fingers at any point. I cut my thumb really bad on the timing
gear on the crankshaft (off camera). Just be careful and use common sense.
Thanks for watching
Porting Heads for Power
This segment is from automotive author Jim Richardson's video, "How To Port
Cylinder Heads for More Power." Here Jim describes how to do port
matching. To view the entire video, order for 19.95+shipping at
Worlds Fastest Dirtbike Mechanic 2007 CRF250X
Worlds Fastest Dirtbike Mechanic 2007 CRF250X
I decided to rebuild my bike this winter so here is the result of this
This is a list of what the bike got.....
Powder Coated Rims
Powder Coated Hubs
Powder Coated Clutch, Ignition, and Valve cover
Powder Coated Wheel Spacers
Powder Coated Axel Blocks
Wiseco Forged Piston and Rings
PIAA High Output Light
New Throttle Tube
The entire rebuild took me 8 hours but we managed to chop down the video to
4:30 with a lot of time and effort.
Also here are the pictures from the build
Builder - Scott Carter
Video Editor - Greg Ferrucci
Powder Coating - Jawa
How to port and polish high performance v8 heads,tips,tricks and trade secrets exposed
*******CHECK OUT PART 2 *****
COMBUSTION CHAMBERS http://www.youtube.com/watch?v=D63jgJs95gY
I look at porting and polishing high performance heads,I been
building engines for 30 years, most of that time in research and
development,I explain in real simple terms air flows and velocities,these
308ci General Motors Holden heads have been transformed over 70 hours,I
show you all the do's and dont's,keep a lookout for the rest of the
rebuild vids, as we head into final assembly,especially dialing in
camshaft's,compression ratio's and everything else that makes internal
combustion engines cranky,Aussie Heads and Race Engines-One Man One Shop
Synthetic Oil Basics
Technically, Synthetic Oil originates as traditional mineral based motor
What separates the two is the level of advanced engineering, refinement and
criteria that goes into this modern engine lubricant.
In short, there is no other routine maintenance contributor that can
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Extreme Weather Protection:
Under early morning sub-zero winter starts or summertime high temperature
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Cold Weather Pour Test:
In this laboratory test, a Synthetic-Oil and a Synthetic-Mineral-Blend have
been frozen overnight at minus 40 below.
This pour test illustrates conclusively the cold-start readiness of
Even after six minutes, the blended oil can't keep up.
And, those white globs you see are wax - a standard component of
conventional mineral-based motor oil.
Clearly, Synthetic oil is the best way to ensure that your vital engine
components are adequately lubricated during cold cranking.
New & Old
With very few exceptions, Synthetic Oil is a wise choice for all new and
Modern engine components are built to higher tolerances and levels of
precision and the superior lubricating properties of Synthetic Oil deliver
the finest day-to-day protection against wear.
Older-engines, performance-engines and power-plants-under-heavy-load can
all benefit from the advanced lubrication and low-abrasion attributes of
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All major auto manufacturers support and specify the use of API certified
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The advanced additives developed for Synthetic Oil help contribute to
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Factory Warranties remain intact, un-compromised and supported.
In any case, the best warranty is the one you never have to use and proper
routine maintenance is an effective way to achieve that long-term goal.
Always check your manual and adhere to the manufacturer's recommended
Today's Synthetic Motor Oil is fully compatible with traditional mineral
This means that you can safely upgrade to synthetic oil... or in a pinch,
switch back or partially top-up with conventional mineral oil.
When you factor-in a decrease in engine wear and fuel consumption,
upgrading to Synthetic Oil can add up to long term savings and better
performance throughout the life of your vehicle.
Ultimately, the goal is for fewer repairs, so that you and your car can
spend more of your valuable time on the road and not in the shop.
Since they were first commercially introduced in the mid seventies,
Synthetic Motor Oils have constantly evolved to serve the needs of motorist
and the cars they drive.
Today, there is no better choice than Synthetic Motor Oils for maintaining
engine reliability, performance and protection.
Canadian Tire has the selection, service and know-how to help you with all
your engine lubricant and maintenance needs.