Removing head Mazda CX7

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Removing head Mazda CX7

Рет қаралды 18,462

michigan mud mechanic

Күн бұрын

I'm digging in looking for bent valves. #MazdaCX7

Пікірлер: 27

@tibetbill 11 ай бұрын

The oil seal in the turbocharger is gone. Plus, you may have a ring problem. I don't know what you did after the fact, but going down this far, I would have at least put new rings, rod bearings, vvt gear and timing chain, oil pump and turbocharger for going back up. Also, with this much carbon in the engine, I would put a new pickup on the oil pump. Once you see the pickup, you will understand, it is a piece of plastic garbage. You can't clean it so throw it away and get a new one. With the timing cover off, the oil pan would drop right down. That said, if you just use the car for a daily driver, reinstall the internal balancer. If you are staying local with the car, you can take the balancer off and get a delete kit along with a windage tray for the oil pan. The engine is filthy. I am not sure if new valves would help you as if you look at the seats on some of the valves, they were carbonized and not seating/sealing. With the condition of the engine, turbos put a lot of pressure on the rings so you need new rings based on what it look like now. All the vacuum lines need to be replaced before reassembly and do not forget about the pcv valve. Easy to replace when the engine is disassembled, can be difficult if you forget after it is assembled.

@michiganmudmechanic 11 ай бұрын

Thanks for all the great information. I never drove this car. I bought it because I thought it just needed the turbo, after replacing that I was still getting a misfire. After cleaning all the carbon out of it and replacing the valves it ran great so I sold it. I never heard back from the guy and when I drive by his house I see he's still using the car. Thanks for watching

@miltonmendoza1462 Жыл бұрын

You thought it was gonna be an easy pull so did I 😊😊😅😅

@miltonmendoza1462 Жыл бұрын

If you get a p0401 do map sensor first 14.5 psi is car off in Texas as car is running 7to 9 psi is idle. Too and carbon clogs that up too remove spark plugs and coils and shop air hose turn crank to clean ports for egr tube 😅 I just delt with this headache 😑 Miller time 😂😂❤ bless everyone 🙏 great video

@michiganmudmechanic Жыл бұрын

After I cleaned all the carbon out of it it ran good. I sold it and never heard back from the guy so I hope it's still running good for him. Thanks for watching.

@IV_Boi 2 ай бұрын

Ya those EGR pipes are notorious for carbon buildup…I think that’s y a lot of ppl delete kit them…I just did a head gasket in my speed6 dame 2.3MZR and my EGR tube was just as closed

@pingpong9656 Жыл бұрын

That carbon soot in the intake seems to be common on direct injected engines - the fuel is no longer washing the valves from behind... walnut blasting may have been good enough here.

@duaneafields 2 жыл бұрын

Great videos

@michiganmudmechanic 2 жыл бұрын

I'm glad you like them. I'm very new at this I have no prior experience with videotaping editing or KZfaq. So your comment means a lot to me thank you. Hopefully they get better from here since I am still learning.

@pingpong9656 Жыл бұрын

Great videos - did you have to remove the power steering pump to get to that hidden intake bolt? Just about to remove mine...

@michiganmudmechanic Жыл бұрын

If I remember right I removed it but I left the lines hooked up so nothing had to be drained.

@arivaisanen4561 4 ай бұрын

Are the valve lifters hydraulic ones or do you need the adjust them?

@zotanzero 28 күн бұрын

So... how do you get the exhaust manifold and alternators off?

@davidmacklin1728 4 ай бұрын

Carbon buildup

@Logan30001 2 жыл бұрын

High maintenance engine

@michiganmudmechanic 2 жыл бұрын

It was a lot of fun to work on. It had me guessing a few times. But now it's gone and I'm in search of my next basket case.

@Logan30001 2 жыл бұрын

@@michiganmudmechanic Would you recommend this vehicle for long term use?

@michiganmudmechanic 2 жыл бұрын

@@Logan30001 I can't really give a recommendation. I only drove the car for a few blocks.

@Melcher7.3 Жыл бұрын

It really all comes down to maintenance, it’s basically like the 6.0 powerstroke of Mazda, leave them stock with maintenance and they last, throw power at it and it’ll go through gaskets quicker than a 6.0. All you have to do is stay on top of issues and it’ll run like a dream. Have had mind since 2010 got 155k on her, only had to do turbo, intercooler, radiator, and gaskets a single time.

@collegekrane6141 10 ай бұрын

How did you remove the exhaust manifold?

@pingpong9656 Жыл бұрын

What symptoms was the car showing before you even started working on it? Did it have blow by, oil drips etc... I'm looking to fix a CX7 for my daughter... so just trying to get any clues at this point!

@michiganmudmechanic Жыл бұрын

When I first bought this car it wouldn't go over 35 miles an hour. The turbo burned so much oil if you close the hood and turned on the heat you get oil smoke inside the car. But it was the misfires that took a long time to track down.

@arivaisanen4561 4 ай бұрын

@@michiganmudmechanic Hi - I have the same misfire issue in one cylinder (4th)! Did you manage to find the reason what caused those missfires - what was wrong in motor causing the misfires?? I appreciate, if you could answer this, please!

@oloruntobaoluwafemi303 Жыл бұрын

Hello sir can you please send the timing video

@TheTruthAboutBitcoin Жыл бұрын

so how did the car turn out in the end?

@michiganmudmechanic Жыл бұрын

It ran really good after cleaning all the carbon out and replacing the valves. Probably didn't need to replace the valves but they were only $60. It sold right away and I never heard back from the guy so I'm assuming all is well.