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  #16  
Old 07-04-2001, 09:20 AM
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It softens and disolves carbon formations.

Probably the most interesting use we have seen was done on two separate vehicles with a very unusual problem.

The first was a 1991 Acura Legend (Honda for you ymsin). The car was a recent purchase and with no service history. The car smoked badly at idle. Not knowing Acuras to have valve guide problems I looked into the service bulletins and found one for engine knocking due to carbon formation. We decided that carbon also could possibly stick the oil rings. We did the decarbon trick and low and behold no more smoking. We advised the customer to dump the car but she didn't listen that time. A couple oil changes later it was doing it again and treating it cured it again. The car was sold.

The second case was a 600SEL owned by a fellow poster here. The car would not start and showed no compression on many cylinders. The air was obviously passing the rings with a cylinder leakage test. We introduced some of the product into each cylinder, hand turned the engine a number of times and let sit. The engine was cranked to throw out any remaining liquid and the plugs reinstalled and the car started. We proceeded to do a regular decarbon cleaning and the car worked fine. The car comes from quite a distance and due to other problems was going to be traded. I have heard no more about it. I wish I could get a follow-up. In both these cases we used the product in an unusual way. Both cases bring an interesting verification of other info I have recently heard. That is that manufacturers are using rings with very little tention in modern engines. This allows them to last very long times. I presume they are thinking that they can do this because of the very clean nature of the modern combustion process.

In the case of the 600 the car only had 100k on a 9 year old car. It wasn't being driven enough and the duty-cycle of such an engine probably is that it never gets above 3000rpm. This due to gearing and power.

I tried to give some particulars to increase all our experience. I do know both cars were affected by the treatment. I do not know whether a repair can be inferred.

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  #17  
Old 07-04-2001, 09:15 PM
CJ CJ is offline
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Steve,
Can you use this on a diesel?
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  #18  
Old 07-04-2001, 11:15 PM
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I have never used it on a diesel. I would be very cautious about introducing any liquid into a diesel intake. Just a little ether has been known to bend a rod. There just isn't room for anything on top of a diesel piston.

We have used Redline diesel catalyst for years with good results. It goes into the tank and is not a typical combustion enhancer. Its job is to catalytically burn off the carbon deposits.

Techron is also used to burn carbon in diesels.
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  #19  
Old 07-05-2001, 12:19 AM
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CJ...

The product being discussed here is for spark-ignited engines only. Stick with Redline. I would not use this product in a diesel engine. If you want to purge, then PartsShop sells Lubro-Moly's "Diesel Purge". Those are the only products I would use in your car for that purpose aside from one other product that you can only buy from a local diesel (truck) injector and pump repair house. That product is Stanadyne. Go to: http://www.stanadyne.com/dsg/dsg_dfa.asp

After all, would you use a "Natie Bow" as an enema, hon?...
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  #20  
Old 07-05-2001, 11:59 AM
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. . . found some info

Here's a how-to-do link for GM cars: http://www.gnttype.org/techarea/maintenance/cleaner.html
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  #21  
Old 07-05-2001, 12:24 PM
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2 cents worth here You can sometimes use a vacuum port on the intake manifold or possibly on the throttle body of some cars to introduce the X-66. BUT, make sure that the vacuum port on the manifold goes into the main plenum, and does not lie in the runner to only one cylinder, as some do. (Unless you want to get only one cylinder *really* clean )

The idea is to allow the first portion of the liquid into the intake tract *SLOWLY* to allow the product to combust in the chamber; then use the rest to drown the engine. And yes, it really does work well.

Additionally, look at my prior posting in the following thread about SAFETY precautions:
Delco X-66 de-carbonizing agent
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  #22  
Old 08-29-2004, 03:46 PM
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Just did the GM TEC thing (Diesel info near the end.)

Just did a search & found this four year old post. It fit my experience so I thought I'd resurrect it. I have an '87 260E with 214,000 on the clock. The PCV line was sludged & it was blowing a bit of oil into the aircleaner through the breather hose. That, & it needed some gas pedal to start; every time, every condition. Other than that, it's wonderful & tight all around.

This stuff is advertised for gas & diesel engines. They say it can be used three ways: though a vacuum line, pour into the throttle or put in the oil or the fuel tank. Hmmm that's four. Anyway, I scraped gunk out of the PCV opening in the manifold, started the engine & dripped some in the PCV hole. It disappeared, so I put a funnel in the hose and let about 2 oz. go through. The idle increased a little while this was happening. OK. So far, so good.

The engine was idling fine, so I had to see if a little TEC on the rings would "unstick" them or something & maybe reduce the blowby that was getting into the air cleaner. As I worked the throttle linkeage by hand to increase RPM, I slowly poured some TEC in. At first the idle increased, then started to bog a little. Jazz the throttle & "drown" the engine in TEC until it stalled. Went next door to goo-goo over their new baby & get greasy fingerprintson her (they loved that). Ten minutes later, I started it up & whoa baby, the smoke. It reminded me of the old mosquito sprayer trucks in the 60's. This smelled better though. Then things went rapidly downhill.

The engine would only run at high RPM, 3000 +. Forget idle. I went through a dozen things to look at & nothing helped. I "knew" the ignition was OK because all the high voltage goodies were relatively new and I'd just cleaner the plugs a week ago. Finally pulled the plugs & they were wet with oil & TEC (smell). Recleaned the plugs and it started right up & idles very nicely. I've put twenty or so miles on it since & it's stilll smooth. I'll have to look inside the air cleaner for oil traces to see if it did what I'd hoped it would. $7 for a can of magic beats a ring job.

Oh yes, for the diesel question. The can says it can clean injectors, but doesn't mention pre-combustion chambers. It says to use a 50% mix with fuel in an injector cleaning machine or to "fill the diesel fuel filter" with TEC to cleaninjectors real fast. The stuff does burn in a gas engine. It also says it prevents fuel gelling down to -60F. The words on the can make it sound like the second coming.

Best of luck,

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