Decarbing 40 H.P. Mariner

B

banchigu

Seaman Apprentice
Joined
Jan 9, 2006
Messages
45
Any surefire formula(s) to decarb the above mentioned engine. I have been told that additives and anything other than regular gasoline and TW3 oil may damage the engine. Also how do I know when it needs decarbing and lastly this process will remove carbon build up from the valves right? Please forgive my ignorance...
 
timmathis

timmathis

Lieutenant
Joined
Apr 24, 2005
Messages
1,295
Re: Decarbing 40 H.P. Mariner

Use seafoam. Go to FAQ and read on decarbing. <br />Tim
 
B

B.M.W II

Petty Officer 3rd Class
Joined
Mar 29, 2006
Messages
89
Re: Decarbing 40 H.P. Mariner

Like Tim says use seafoam. Works good, just did my 150 V6 yesterday. Mix 16oz of seafoam 3oz of tcw 3 oil and 3/4 gallon of gas. This will be enough for 4, 15min intervals. Run for 15min and let it set for 15min. Oh send the neighbors in the house. It will smoke alot.Good luck. Joe
 
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