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Anyone using Decalin lead scavenger in Rotax?

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rparigor(at)suffolk.lib.n
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Posted: Mon Apr 24, 2006 11:08 am Post subject: Anyone using Decalin lead scavenger in Rotax?

Anyone using Decalin lead scavenger in Rotax?



ACS sells Alcor TCP that is approved for use on Certified Aircraft. Hazmat

shipping and not reccomended to carry round in cockpit. ACS P/N 05-21300



ACS also sells Decalin TCP that is not approved for use on Certified

Aircraft. No Hazmat shipping and OK to carry round in cockpit. ACS P/N

05-01413



Ron Parigoris

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Gilles.Thesee(at)ac-greno
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Posted: Mon Apr 24, 2006 11:29 am Post subject: Anyone using Decalin lead scavenger in Rotax?

rparigor(at)suffolk.lib.ny.us a crit :

 	  Quote: 	
		   



 Anyone using Decalin lead scavenger in Rotax?



   


	


Hi Ron,



Why should we ? Any recommendation from Rotax ?



Regards,

Gilles Thesee

Grenoble, France

http://contrails.free.fr

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rparigor(at)suffolk.lib.n
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Posted: Mon Apr 24, 2006 12:09 pm Post subject: Anyone using Decalin lead scavenger in Rotax?

Hello Gilles



""Anyone using Decalin lead scavenger in Rotax?""



"Why should we ? Any recommendation from Rotax ?"



Lead scavenger may help out:

Lead fouling of plugs

Sticking valves, stems and guides, talking to a Katana mechanic, most

times after a climb, reduce throttle and get rough that often will go

away. This mystery miss is often mistaken for carb ice

Talkin to a guy who was in Italy for a while, 80/80 compression motor

would not develop full power, when torn down cylinders coated with lead

Sticking rings

Combustion chamber deposits, can cause the "D" word

Sticking wastegate

I forget the exact gearbox problem, think it was slipping slipper clutch

Lead gets in the oil, if it percipates out....



Lockwood in US advocates use of TCP, they have not investigated other at

this time.



Ron Parigoris

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rparigor(at)suffolk.lib.n
Guest

Posted: Tue Apr 25, 2006 10:33 am Post subject: Anyone using Decalin lead scavenger in Rotax?

I talked to Chris from Decalin today.



His product, Decalin TCP uses the same active ingredient as Alcor TCP, but

instead of the carrier being Tolulene, it is the same carrier as used in

jet fuel PRIST, some sort Ethel or something or other.



He said Rotax needs only 1/2 the dosage of Lyc. or Cont. which would be

1/2oz. per 20 gallons instead of 1/2oz. per 10 gallons.



Detriment to using too much, is it creates Lead Phosphate deposits, a

yellow substance. He said you can clean out with a good automotive

combustion chamber cleaner, if you see the yellow, but at half dosage and

limited running on 100LL, may never be a problem. He is working at this

moment to incorporate a cleaner in his product.



Said no problem carrying in cockpit in a sealed container, very high

boiling point.



Said indefinite shelf life, and will not spoil in fuel, will not harm

MaGas or if you use some sort of anti-oxidation stuff like stabil in your

mogas. 



He has 1 distributor that has been selling to Rotax community, and just

like the Subaru's, using 1/2 dosage.



Said a real nice thing for O2 sensor, that I will have on my 914, not much

conductive coating of lead will form.



My gut feeling is it will probably not make sticking wastegate problem

worst, and he said he has no personal experience with turbos to say it

will help.



I think I am convinced enough to try when I fly and need to use 100LL.



I have 2 Andair GAS135 Gasculators. I got hold of another bowl, and when I

will not be flying for a while will run some 100LL with Decalin through

the spare bowl with plumbing connected to bottom in an attempt to keep

carbs, fuel pressure regulator, and Flowscan transducers from catching up

with "Mogasnot". 



Ron Parigoris

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johnwigney(at)alltel.net
Guest

Posted: Wed Apr 26, 2006 6:25 am Post subject: Anyone using Decalin lead scavenger in Rotax?

Hi Ron,



I have been using ALCOR TCP almost from day 1. My initial purchase of a 

1 US gal can of the TCP is almost empty after nearly 500 hours and I 

already have my replacement supply of Decalin in hand. I seem to 

remember TCP was recommended by Lockwood Aviation for those of us who 

use 100LL on a regular basis.



Does it do any good? I have no idea. I do know that the oil is full of 

lead when I change the oil (Valvoline 10W-40 Durablend semi-synthetic). 

Also my plugs always look to be in very good condition when I inspect 

them - no build up of crud. Re carrying TCP in the cockpit, I have been 

using a heavy wall camping fuel container which is made to be 

pressurised. See http://www.msrcorp.com/stoves/bottles.asp



Thanks for the follow up recommendation regarding only 1/2 oz per 20 

gallons. Did Decalin explain why Rotax needs less than the Lyc. or Cont. 

engines?



Cheers, John

N262WF, mono XS, 912S

Mooresville, North Carolina

******

Time: 12:08:31 PM PST US

Subject: Anyone using Decalin lead scavenger in Rotax?

From: <rparigor(at)suffolk.lib.ny.us>

Anyone using Decalin lead scavenger in Rotax?

ACS sells Alcor TCP that is approved for use on Certified Aircraft. Hazmat

shipping and not reccomended to carry round in cockpit. ACS P/N 05-21300

ACS also sells Decalin TCP that is not approved for use on Certified

Aircraft. No Hazmat shipping and OK to carry round in cockpit. ACS P/N

05-01413 Ron Parigoris

********

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