Repair cvt VT25-E/VT20-E, Saturn, Opel.
Demonstrated inside the repair of variator VT25-E/VT20-E (continuous
variable transmission: CVT), mounted on car Saturn Vue 2,2l 2002-2005 and
Ion Quad Coupe 2,2l 2003-2004. Also installed on the car Opel Signum
2004-2007 and the Opel Vectra C 2004-2007.
Ремонт вариатора VT25-E/VT20-E. Saturn Vue, OPEL.
Honda Transmission Rebuild Video - Transmission Repair
Honda Transmission Rebuild Video - Transmission Repair
On this video we see what it takes to Rebuild a Honda Transmission, what
parts it takes and what has been working to correct some of the common
failures on these transmissions.
Blue Overheated Torque Converters has been a common issue on these
Transmissions for a long time and we still see this regularly to this day.
Although there are various shift correction kits and special valves out
there, all work really good on correcting the issue with the lack of
converter feed fluid. I like them all. So if a deciding factor is important
to you on which method to use, all I can say is this, They all work.
Keep in mind that there are "other" fixes or items that can be added to the
rebuild, but it is not really necessary if they're not really needed, I'm
not mentioning any but I know some of you will.
With that being said I like to thank you for watching this video and liking
it and sharing it.
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CVT Transmission Belt to Pulley Clamping
CVT Belt to Pulley Clamping
Get the book here:
The key to understanding how a CVT works, is by reviewing how the chain and
cone pulley react with each other. All CVTs have one weak spot, the contact
point. This is where there is a tendency for the whole transmission to
slip, grind and sustain damage. Incredibly enough, this is not where CVTs
fail the most, but more on that later.
The CVT belt is composed of two groups of metal rings, each of 7 to 12
rings, and a few hundred special metal links. It is these links the ones
with direct contact with the cone pulleys, or variators as they're called
by the manufacturer. For good clamping force, the CVT needs a specific
transmission fluid. To neglect this fact is to ask for trouble, as the CVT
will get damaged due to slipping and grinding between the belt links and
There's also another aspect of the CVT clamping force that needs to be
reviewed, which is the hydraulic pressure exerted on the cone pulleys or
variator. The CVT oil or hydraulic pump can generate as much as 1000 PSI of
pressure. but not everything in the CVT needs this much pressure. Because
800 or more PSI is more than most circuits need, line pressure is regulated
down to three lower levels, 220 PSI maximum for the clutches and variator,
140 PSI for the TCC, or torque converter, and 80 PSI for the lube and
cooler circuits. The CVT also has a few ... Get the whole story right here
in this video... Enjoy...
Amazon Printed-Books & Kindle:
Google Play Android APPs:
Amazon Video DVDs:
Transmissions: Pros and Cons of Rebuilding Continuously Variable Transmissions
Supported by Transtar and TransTec and produced by Motor Age in partnership
with ATSG, this training program explores the various CVT configurations,
their operation, parts and tool availability to help you determine which
repairs can and cannot be made in your shop. Best of all, this program will
provide basic tips for the average transmission specialist to determine if
the shop can rebuild that CVT profitably or if the transmission will need
to be replaced. Click this link to subscribe to Motor Age!
The driving shaft VT25-E/VT20-E. wmv
The driving shaft. Piston forward is one of the weaknesses in the variator
(CVT). Major failures because of it. Rubber deposited by curing on a metal
part of the piston - hardens and loses elasticity. Height (thick-ness on) a
rubber bumper is only 5 mm, and height of the cylinder in the fixed part of
the cone leading shaft is also small. During compression clutch forward,
the piston is so out of the cylinder, which creates oil leak on the outer
circumference of the piston. Reduced contact area between the piston and
cylinder. Falling oil pressure ball valve on the piston does not have time
to close. Piston periodically presses, the press clutches. And as a result
1. Twitching of the time away.
2. Wear of the friction, they simply burn out. Increased clearances and
there is a metal ring.
3. Of clutch friction material are particles that fall into the oil block
of solenoid and a valve, which causes them to malfunction - jamming valve
4. Wear surface of the cones.
5. Wear metallic belt.
6. Crushing balls in the slots.
7. Chips in the slots themselves driving and driven shafts.
8. As a result - jamming mobile cones.
9. And later breakage of the metal belt.
10. In the torque converter divides the overrunning clutch.
Allison Transmission - LCT 1000 - Teardown Inspecton
Teardown Inspection and Preparation For Shift-kit Installation.
Here we see an Allison LCT 1000 teardown inspection and you can also see
how this transmission is being used on some heavy duty trucks. Very tough
and durable. On part 2 of this video, we're installing a Transgo shift kit
to make this unit more heavy duty than it already is. So watch part 2 of
this video as well.
Honda Transmission Repair 2
On this video we see the necessary parts needed for a successful rebuild on
these Honda units. The main issue is the converter lacking lubrication and
burning up. There is a new valve from sonnax to correct this issue. As well
as the "O"ring end plugs and TC check valve.
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Thanks for watching.
GM 4L80-E Transmission Rebuild - Transmission repair
GM 4L80-E Transmission Rebuild - Transmission Repair
Here is a full rebuild video of a GM 4L80-E Transmission. We see the parts
that took for a successful repair. Complete overhaul kit with clutches and
steels and molded pistons. All bushings as well.
There's some items that I personally would've add to the parts list but
since this is for a Transmission Shop down the road this is what I was
Items I would add are:
Actuator Feed limit Valve, Transgo.
TCC Regulator Valve Kit from Sonnax.
1-2 & 3-4 Shift Valve Springs from Sonnax.
TCC PWM Solenoid.
And Shift Solenoids if needed.
Honda Civic Transmission, BMXA, Teardown Inspection
Honda BMXA Transmission.
This is a transmission of a Honda civic BMXA. Here we see the most common
issues I see with these units. The most common being a restricted filter.
Had some camera issues, hope you don't mind. A clip came out black and
How Car Transmission System Works
Know how the transmission system inside an automobile works. Do not forget
to hit like if you found this video useful.
Please Note: The differential gear system was mistakenly animated, and the
actual rotation of the pinion and the ring gear is opposite to what is
4L60E Transmission Teardown Inspection - Transmission Repair
On this video we can see the disassembly of a 2006 4L60E transmission. The
most common failure on these units is 3rd. clutch burn up, the reaction sun
shell and the 2-4 band. Failure on these transmissions is not necessary the
way it is treated, rather is these common or pattern failures. Valve body
ware is also another issue and can be corrected installing a correction kit
of your choice.