The Trainer

Рет қаралды 9,140

2 жыл бұрын

#gdi #gasolinedirectinjection #carbondeposits #volumetricefficiency #scope #drivability #troubleshooting
Most drivability problems are caused by one of only four different things.
There is either a problem with getting the right amount of fuel into the engine, getting that air/fuel mixture to ignite when its supposed to, or a problem on the air side - compressing the air/fuel mixture and sealing the combustion chamber, or a problem getting the air in and out of the engine.
When it comes to many GDI designs, problems with engine carbon build-up can result in engine breathing issues.
And that’s the topic of this month’s The Trainer.
Be sure to visit our sponsor at www.Autel.com!
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Пікірлер: 20

@richard1835 2 жыл бұрын

A walnut blaster may be the only alternative for some engines with severe carbon buildup without taking the head(s) off. This is the best Automotive training series on KZfaq. I have learned a lot from Pete and the crew who provide these videos. Thank you Motor Age.

@shawnhimel1969 2 жыл бұрын

As always GREAT information. Pete seems to always break down information in easy to understand terms. That is why I enjoy his approach to teaching and testing !!!!!💯😎

@MotorAgeMagazine 2 жыл бұрын

Thank you Shawn. That means a lot to me. Glad you're finding these videos helpful.

@samr.m.7709 2 жыл бұрын

Great video Pete! Noticed the US General cart in the back ground, I converted that same cart to a diagnostic tool cart! It works great!

@petar443 2 жыл бұрын

Thanks for the information 👍

@alexpacheco2031 2 жыл бұрын

I can’t breath 🤣 Great title

@justins.2415 Жыл бұрын

Can the excessive turbulence from the carbon deposits contribute to misfire? Some one has told me this.

@damonzilliox2751 2 жыл бұрын

Those poor oil rings in that animation. Lol.

@kkintz4188 Жыл бұрын

What port did you use to gain access for the borescope to view the valves?

@MotorAgeMagazine Жыл бұрын

Sorry for the late reply. I snaked it through the vacuum port in the intake manifold just behind the throttle body.

@nickayivor8432 2 жыл бұрын

Thank you 👍 KNOWLEDGEABLE Sir Pete Meier Motor Age From Nick Ayivor from London England UK 🇬🇧

@moebassidji8306 10 ай бұрын

are you power breaking?

@Michael_Mears 2 жыл бұрын

If fresh, filtered air is going into the chamber, where does the carbon on the back of the intake valve come from?

@MotorAgeMagazine 2 жыл бұрын

It comes from passing through the unburned crankcase vapors that collect internally. In the old days, we vented the engine to the atmosphere but that changed with the Clean Air Act. Now, either a PCV or breather system is used to recycle these gasses.

@Michael_Mears 2 жыл бұрын

@@MotorAgeMagazine Thanks. Yes, you did say mention crankcase ventilation. I can see how this doesn't happen as much or at all with either carburetor or indirect injection, because the fuel/air mix is flowing past the valve, as you said in the video. I wonder if the newer oil catch cans help alleviate or reduce this problem, something like the Provent units from Germany?

@MotorAgeMagazine 2 жыл бұрын

@@Michael_Mears Likely, but using them would be defeating an emissions system - illegal in the U.S.

@Michael_Mears 2 жыл бұрын

@@MotorAgeMagazine No worries. They are both legal and in common use here in Australia. Thanks for clarify.