Terraclean Intake Cleaning

[GTI-Ross]

Can you explain more about the mixture, how much of each one would I need.

So some white / mineral spirit, Acetone (is that nail vanish remover?), ISo achohol, petrol, but what is NAPHTHA, never heard of that.

Thanks

[ROH ECHT]

Can you explain more about the mixture, how much of each one would I need.

So some white / mineral spirit, Acetone (is that nail vanish remover?), ISo achohol, petrol, but what is NAPHTHA, never heard of that.

Thanks

Sure...acetone is a strong resin remover, petrol helps to keep the rpm's from dropping as much, NAPHTHA is another solvent similar to White Spirits only they vary in point of ignition and drying time.
The quantity, as I said regarding 2 parts and 1 part, depends.
I use 8oz or 1 cup as 1 part. So for spirits and NAPHTHA I use 2 cups and 1 cup each of the remaining liquids.
If you choose 4oz as 1 part...then you'd use 1 cup each of spirits and Naphtha, and 1/2 cup for each of the remaining liquids.
If NAPHTHA is unavailable there, you can simply double the quantity of spirits. However, you can also apply 100% spirits.
I only began messing around with a mixture because I get asked often "Why don't you use____?". I have found that there are some fuel system cleaner products that include those solutions...so I figured it can't hurt to try them. My last cleaning with this new mixture I didn't bore the valves, but I will after the next one. I may, myself, go back to applying 100% spirits as I have always done in the past. It will depend on the resulting bore-scope pics and how they compare to the 100% spirits pic. 

[GTI-Ross]

Can you explain more about the mixture, how much of each one would I need.

So some white / mineral spirit, Acetone (is that nail vanish remover?), ISo achohol, petrol, but what is NAPHTHA, never heard of that.

Thanks

Sure...acetone is a strong resin remover, petrol helps to keep the rpm's from dropping as much, NAPHTHA is another solvent similar to White Spirits only they vary in point of ignition and drying time.
The quantity, as I said regarding 2 parts and 1 part, depends.
I use 8oz or 1 cup as 1 part. So for spirits and NAPHTHA I use 2 cups and 1 cup each of the remaining liquids.
If you choose 4oz as 1 part...then you'd use 1 cup each of spirits and Naphtha, and 1/2 cup for each of the remaining liquids.
If NAPHTHA is unavailable there, you can simply double the quantity of spirits. However, you can also apply 100% spirits.
I only began messing around with a mixture because I get asked often "Why don't you use____?". I have found that there are some fuel system cleaner products that include those solutions...so I figured it can't hurt to try them. My last cleaning with this new mixture I didn't bore the valves, but I will after the next one. I may, myself, go back to applying 100% spirits as I have always done in the past. It will depend on the resulting bore-scope pics and how they compare to the 100% spirits pic. 

Is it recommend to get an oil change after? I was going to us sea foam before and people say its always best to change oil, is that correct?

[ROH ECHT]

I, myself, add 4oz of spirits(←the amount of spirits in a bottle of MMO) to my oil when there are 500 miles left before I change my oil (every 5k miles). I do the valve cleaning up to a week before changing my oil. So I would say sure, although there are some that run products such as MarvelsMysteryOil(MMO) which contain spirits at all times in their oil.
I know of no solid data of any harm it may cause...and since I was tired of looking I lean toward the side of safety ;)

[ROH ECHT]

Here are today's valve pics. Impressive the amount of carbon removal this does.
The valve stems look nearly free of carbon, and the valve stem guides show their bronze again.







↑ That...after this ↓

[scopes]

 

That looks much better, have you noticed any preformance gains ?

 

[GTI-Ross]

im going to have to give this ago before next oil change. I know you have mastered quite a complex mixture. Is there a mixture which requires less parts to it which would be close to the same level of success you have had in the last pics you posted. (a simple mixture)

Thanks

[MPS]

Can't you just unbolt the exhaust upstream of the cat so it doesn't touch it? lol

[GrayMK5GTI]

It's not exhaust gas that's causing this. . . You are thinking of diesel EGR valves.

This is caused by oil hitting the valves from the PCV system (crankcase air containing oil) passing into the inlet manifold, and also some oil passing by the turbo seals.