Piston ring end gap is and important measurement to verify during engine assembly. Do this to ensure that the ring ends won't butt during engine operation and damage the cylinders. Also keeps cylinder pressures more consistent from bore to bore which means better effiiciency and power.
Fitting of piston rings - Motor Service Group
Knowledge transfer via video
- our video podcasts provide you with useful information on our products,
such as hands-on fitting instructions and system descriptions.
The mounting of piston rings bears a lot of potential for mistakes.
We show you the most important points that need to be considered.
Installing Piston Rings The Easy Way "NO TOOLS"!
In this video I show and explain the easiest way to install your piston
rings with out breaking them.
I if you need to Clock your Rings, I made a video for that also..If your
looking for the diagram for the ring clocking specs you can find it on my
web site www.Nthefastlane.com Click the "Filling Cabinet Tab"
Help Support My Channel:
Visit me at: http://www.Nthefastlane.com
Blueprint 106 - Cylinder Bore Inspection
We're close to the end of the 100-level series. In this video I show you
how to measure the cylinder bores using 2 different tools. I compare the
results and illustrate what to look for to determine whether or not your
engine is in-spec.
The block I'm using is a 6-bolt turbo
4g63 from early '92. It has 150,000 miles and this video also serves as a
testimony for the durability of Mitsubishi's cast-iron solid-decked Sirius
I engines. This engine will be cut for a new set of pistons, so these
measurements are needed to determine what size pistons I need to get.
.030" is as far overbored as you should ever take a 4g63. Boring larger
than that will take too much off the side clearances between the cylinder
walls and result in compromised strength from hot spots. The only time
you'll ever need to cut a bigger hole is when an imperfection prevents you
from using the pistons you have, or if you're changing to a larger piston.
If you cut the block to its service limit, you have no room to fix an
imperfection should one develop... so it's best to cut as little as you can
get away with. Boring a cylinder .020" over does not significantly
increase its displacement.
How to Reseat / Lap Valves (Basic Valve Job)
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.
How to Check Bearing Clearances Plastigage - Engine Rebuild Do It Yourself (Part One)
DIY engine rebuild. See Part Two:
How to check main and rod bearing clearances.
This is to prevent low oil pressure or seized bearings.
clearance required = .001" - .003" for almost all engines
I ordered the Plastigage wire here. $2.50
http://www.autozone.com/autozone/catalog/accessories (Search Plastigage)
How To Tell If Your Engine Is Worn Out
Scotty Kilmer, mechanic for the last 45 years, shows how to test your
engine to see if it's just plain wearing out internally. A simple test with
a 50 dollar tool will show you. And if you want to ask Scotty a question
,he is now answering everyones' car questions live EVERY Saturday at 10 AM
CST on google events. Just be a member of google plus, and you can ask your
own question on Saturday morning.
How To: File Piston Ring End-Gaps
In this video, I show you how to file down the piston ring gaps for your
engine. Its something that is definitely do-able on your own with some
patience, and its a pretty useful skill if you like re-building motors.
Check out the new project garage facebook group!
How to install pistonrings on a twostroke
Here I mount piston rings on a piston to a Speedfight 100cc and 50cc.
Surf to http://www.twostroke.se if you need new piston
Some hints, tricks and other things you should know at piston replacement:
Things to consider when installing an aftermarket Piston, is that you very
carefully to make sure it is identical with the piston as it is ordered in
the dimensions of the piston pin, both upwards and downwards, this so that
it can not turn the crank, push or hit the top when it rotates in the
Compare with your old piston before installation.
One must also carefully check every holes on the piston rings ports so that
they do not go over any channel in the cylinder, then the chances are that
the ruling in this case, sticking and breakage, leading to the cutting
cylinder. The arrow on the piston is at assembly towards the Exhaust port.
Choosing the piston:
B-piston recommend it for all used cylinders.
A piston for new cylinders or cylinders with new nicasil.
A B piston is slightly larger than an A piston in order to compensate for
wear. C piston is greater than B-piston etc..
Here you can see when I change the cylinder
Best Piston Installation Technique
this brief video shows you how to correctly install pistons into a sleev
without using excessive force! For people not familier with this type of
piston-ring compressor, it is a tapered sleeve manufactured by wiseco
How to Install Piston Rings - Summit Racing Quick Flicks
Not sure how to install piston rings? Al will walk you through how to
install piston rings with and without a set of piston ring expander pliers.
Finally he talks about clocking the ends of the pistons to avoid blow-by
and loss of compression.
Piston rings or valve guides?
html In my pursuit of faults I check if a piston ring is broken. Somebody
told me that it can be checked by feeling the pulsing air from the oil-sump