carbon removal.... could i of messed something up?

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rivetapproved240
Posts: 44
Joined: Tue Oct 14, 2003 9:18 pm
Car: mechanical work

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heres what i did. i took 1 bottle of seafoam, but 1/3 through the intake , 1/3 through the brake booster, and 1/3 in the crank case, with the car off. I then removed all of the spark plugs and wires and sprayed a 4 sec spray of seafoam deep creep directly onto the piston crowns. i let it sit for about 1 hour (heavy carbon due to bosch +4 ), covered sparkplug holes with towel and dry cranked to remove excess . reinstalled plugs (new) and new wires. held throttle at wot and turned ignition... car cranked and i held it at 3k rpm's for about 1-2 mins... Heavy smoke dark in color, not the usual white smoke... it was kinda gray but not black. drove car around block to get excess off. changing oil within next 20 miles. car runs great but i was wondering if i did this wrong, this was explained to me by a friend of mine that is a mechanic but i dont know if i followed the directions correctly.. the car runs absolutly great....


fantabulous
Posts: 97
Joined: Wed Aug 25, 2004 3:12 pm
Car: s14

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if the car runs absolutely great, how could u have messed something up. isnt that the point?

navysnail
Posts: 3335
Joined: Wed Feb 11, 2004 1:33 pm
Car: 1990 Nissan 240SX fastback

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yep, thats right. you might want to go ahead and change the o2 sensor also, as all that carbon will have given it a nice coating

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xekushnr
Posts: 5084
Joined: Thu Jun 03, 2004 7:51 am
Car: '90 Nissan 240SX Hatch
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man, i really gotta get some of this stuff. do autozone or murrays sell it?

rivetapproved240
Posts: 44
Joined: Tue Oct 14, 2003 9:18 pm
Car: mechanical work

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advance auto parts and autozone sells it... but i have only seen one autozone that sells the deep creep. anyways... i was wondering if the pressure due to the liquid being in the cylinders and the pressure from the intake could cause something like hydro lock? perhaps i just got lucky

[Zero-S]
Posts: 5295
Joined: Wed Apr 16, 2003 10:56 am
Car: Tell me whats wrong with this picture. 3 240's, only one runs.

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No, you're fine.

navysnail
Posts: 3335
Joined: Wed Feb 11, 2004 1:33 pm
Car: 1990 Nissan 240SX fastback

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since you took your spark plugs out, there is no way it could hydrolock, it doesnt make any pressure like that

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Axel Grungy
Posts: 4711
Joined: Tue Jul 08, 2003 8:13 am
Car: 2001 G20 5spd
Location: Cincinnati OH

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xekushnr wrote:man, i really gotta get some of this stuff. do autozone or murrays sell it?
the murrays down here sells seafoam, i actually found some at one autozone as well.


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