Water Cylinder Decarbonizing... Should I?

[danielsatur]

A glass beaded Intake, and an ''Out of Car Injector service'' works better!
The Injectors are micro bathed, blowed out, and the flow rate is tested.

[BlazerLT]

This thread was more related about cleaning than increasing performance.

[danielsatur]

Yep! decarbonization -

All the Emissions from EGR and PCV systems going into our Intakes.

Plugged Egr ports, bad PCV causing contaminated MAF sensors, heat soak causing injectors blockage.

Lets put something in a bottle, and sell it to Wallst.
Lets contaminate and blow a catalytic converter with a backfire.

[BlazerLT]

Originally Posted by danielsatur

Yep! decarbonization -

All the Emissions from EGR and PCV systems going into our Intakes.

Plugged Egr ports, bad PCV causing contaminated MAF sensors, heat soak causing injectors blockage.

Lets put something in a bottle, and sell it to Wallst.
Lets contaminate and blow a catalytic converter with a backfire.

huh?

[danielsatur]

I tryed a decarbonizaton product called SeaFoam for my Jaguar, it backfired and blew a catalytic converter.

[BlazerLT]

Originally Posted by danielsatur

I tryed a decarbonizaton product called SeaFoam for my Jaguar, it backfired and blew a catalytic converter.

Then you dumped in way too fast.

[danielsatur]

Not true-
The directions = 1/3 tank, 1/3 block, and 1/3 through the vacuum Intake.

I'am not going to dump 1/3 can into my gas tank or block, because there was a new oil Mobel 1 change, and an ''Out of car injector service'' performed on this car.

1/3 of a can was vacuumed up by the intake, a backfire occured and damaged a new cat.

[BlazerLT]

Originally Posted by danielsatur

Not true-
The directions = 1/3 tank, 1/3 block, and 1/3 through the vacuum Intake.

I'am not going to dump 1/3 can into my gas tank or block, because there was a new oil Mobel 1 change, and an ''Out of car injector service'' performed on this car.

1/3 of a can was vacuumed up by the intake, a backfire occured and damaged a new cat.

Yes, because you sucked it up too fast and you didn't shut it off and allow it to soak for a while.

[danielsatur]

My concern would be still contaminating the H02 sensors & catalytic converters.
http://www.youtube.com/watch?v=Ef3HNvxblxQ&NR=1

[BlazerLT]

Originally Posted by danielsatur

My concern would be still contaminating the H02 sensors & catalytic converters.
http://www.youtube.com/watch?v=Ef3HNvxblxQ&NR=1

sorry bud, you are just tryting to make excuses for you not using it properly.

You are supposed to allow it to be sucked in slowly and then stall the engine with the last bit and allow the engine to sit for 10 minutes to an hour.

It has been proven not to damage sensors.

[billyIrvin]

I have just read the post on here and decided to try Seafoam on my 95 GMC Safari 4.3l. Well it is running better then it has in years. I had it checked at a garage and was told that it had low compression on the #4 cylinder. Knowing how this thing has had problems with carbon since it was new,so when I read what LT had wrote about water I thought that I would try it. I already had the seafoam so I used it and it has made a HUGE difference. Smooth idel and more pick-up on the road. Thanks Lt for the post it helped me alot.

[danielsatur]

I solved probably 90% of the problem with an external filter for the PCV system.

[cmte_carvalho]

Hello fellows;

I own a 1978 Jeep Cj5 with an inline 6 cylinder GM 4.1L motor. This particular engine came from another vehicle, which was made in 1993.

Since i bought the Jeep i've been having problems with cold starts (although the place i live isn't cold at all) and irregular idling. Also, while driving, i always felt that it wasn't giving all the output it should.

I've done many things trying to solve these issues: carburetor overhaul, new plugs and cables, new distributor cap and rotor, new coil... Unfortunately these actions weren't able to fix the mentioned problems.

One day i decided to remove the intake and exhaust manifolds in order to take a look inside - and, as you may expect, i saw a lot of black grease-like material attached to whatever i could see through the ports. It certainly was time for a decarbonization.

Here in my country (Brazil), most mechanics (willing to make money, of course) would immediately recommend to disassemble the engine in order to make a complete clean-up - a very aggressive, expensive and time-consuming procedure. So, i went over Google trying to find a solution that wouldn't require to open the engine to clean it inside. That's when i discovered SeaFoam.

Another issue then came up - eBay SeaFoam sellers told me they couldn't send it here, once it is a flammable material, thus the post office would block it from international postage.

More research over internet finally brought me here, to BlazerLT's AutomotiveForum post on the procedure "Water Cylinder Decarbonizing". Damn - if i got to know that earlier, i'd have much probably solved the problem with the Jeep already!

I read it entirely, trying to understand every small detail, every step, so that i won't mess things up and finish with an totally undesirable hydraulic lock.

I just miss some more details on how to do it for carbureted engines - where exactly may i pour the water inside the engine? Should i use the carburetor mouth/throat, or the PCV valve just like BlazerLT had instructed for more modern fuel injected vehicles? Any additional details on how to do it..?

Thanks in forward for your patience. Best regards!

[K5Calamity]

Just let it suck water through the PCV Valve from a container. Dip the PCV Valve into the water and let it draw it into the engine. Make sure to raise the RPM's to 2000 or more. It will work better that way. You will probably need to repeat the process several times to clear out all the carbon. It can be stubborn. The hotter the engine is the better though, so drive it around and get it up to full temp before you try this. I've done this procedure alot and as long as you don't dump so much water in that it bogs and stalls the engine you won't hydro lock it. It takes alot of water to do the cleaning you are hoping for.