Seafoam on Carb'd '86 Chevy c10? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

matts86chev · 10-04-2011, 04:44 PM

What is the best way to use seafoam on my truck? I have read to pour it in the crankcase, or just the gas tank, or a vacuum line or straight into the carb... anyone have experience on a similar truck and what works and what doesnt?

RandyP · 10-04-2011, 05:07 PM

Unhook the vacuum line going to your brake booster and pour it in there so it goes right in on top of the engine. Putting some in the gas tank does not hurt either. I did it to my old 79 K5 and it helped a TON.

Just get ready for a smoke show, you'll swear something is on fire. Just means it's working though.

slammed427 · 10-04-2011, 05:27 PM

I run it in the crankcase periodically to keep the oiling system clean. On my 74 and my old 79, I pour it in the carb slowly, keeping it running when it trys to stall out, I do that twice, and then on the third pour, I let it flood out and let it sit for about 15-20 min. Fire it up and smoke out the neighborhood.

The first time I did it in my 79 it was like I had given it new life. It chirped the tires going into second, and ran like a new engine again. I repeated the process again and less smoke the second time, but still a fair amount of it. Too many years of bad gas it would seem.

jasonroman · 10-04-2011, 05:44 PM

whats the benefit of sea foaming?

meter swinger · 10-04-2011, 06:46 PM

I run it on all my rigs. Love the stuff. Did wonders on my 59 and 78 even helped the 87 tbi. Didnt help the international travelall though

but then nothing will.
Posted via Mobile Device

oh yeah pvc line or brake booster line. Then stand by for smoke...

1LowToy · 10-04-2011, 10:40 PM

Any Pics!!!!!!

Sorry couldn't help it. I'm on my 5th bourbon 7

Actually Seafoam is amazing stuff

rayfinseats · 10-04-2011, 11:02 PM

I use it gas tank only. Good stuff.

matts86chev · 10-05-2011, 12:49 AM

I poured a third of it down through the carb while it was running, it kept trying to die so I would stop pouring for a bit, then when I got to the end of that 1/3 of the bottle I poured it in and let it die added another third to the gas tank and the final third to the crankcase. Let it sit for about 20 minutes and started it up. Smoked and stank like hell but after that MAN was there a difference! I drove it about 10 miles around to get the oil circulating and then went home let it sit some more and changed the oil. I didn't think it would actually do much but I already notice a huge difference even just in the smoothness of the idle and the acceleration near the bottom! I'm gunna make a habit of doing this every oil change!

gofastbobby · 10-05-2011, 02:20 AM

I just ran a bottle through my gas tank last week. I haven't run the truck in over a year. I am not sure if it's the seafoam or just because I am actually driving it. Either way the truck is running better.
Posted via Mobile Device

motornut · 10-05-2011, 06:50 AM

have to see if i can find it up here
would like to try it

10-04-2011, 04:44 PM	#1
matts86chev Registered User Join Date: Feb 2011 Location: Chula Vista, CA Posts: 34	Seafoam on Carb'd '86 Chevy c10? What is the best way to use seafoam on my truck? I have read to pour it in the crankcase, or just the gas tank, or a vacuum line or straight into the carb... anyone have experience on a similar truck and what works and what doesnt? __________________ 1986 Chevy C10 305 5.0L Work in progress...

10-04-2011, 05:07 PM	#2
RandyP Getting Old; Going Broke Join Date: Apr 2010 Location: Owasso OK Posts: 2,764	Re: Seafoam on Carb'd '86 Chevy c10? Unhook the vacuum line going to your brake booster and pour it in there so it goes right in on top of the engine. Putting some in the gas tank does not hurt either. I did it to my old 79 K5 and it helped a TON. Just get ready for a smoke show, you'll swear something is on fire. Just means it's working though. __________________ *Why is every used 350 sbc out of a corvette?* There's only two things that excite a man, expensive toys and real expensive toys. *VEGETARIAN: That's an old Indian word meaning "I don't hunt so good."* When the going gets tough, switch to power tools.

10-04-2011, 05:27 PM	#3
slammed427 Registered User Join Date: Dec 2008 Location: Tempe, Az Posts: 325	Re: Seafoam on Carb'd '86 Chevy c10? I run it in the crankcase periodically to keep the oiling system clean. On my 74 and my old 79, I pour it in the carb slowly, keeping it running when it trys to stall out, I do that twice, and then on the third pour, I let it flood out and let it sit for about 15-20 min. Fire it up and smoke out the neighborhood. The first time I did it in my 79 it was like I had given it new life. It chirped the tires going into second, and ran like a new engine again. I repeated the process again and less smoke the second time, but still a fair amount of it. Too many years of bad gas it would seem. __________________ 74 C10 LWB 350/T5 Dropped on 20's Soon to be Bagged and Injected 84 C35 Crew Cab Dually. 454/400 Dropped a lot. Instagram: mmmdropp

10-04-2011, 05:44 PM	#4
jasonroman Registered User Join Date: Jul 2008 Location: sayreville nj Posts: 1,072	Re: Seafoam on Carb'd '86 Chevy c10? whats the benefit of sea foaming?

10-04-2011, 06:46 PM	#5
meter swinger Registered User Join Date: Apr 2009 Location: Kennewick WA. Posts: 1,437	Re: Seafoam on Carb'd '86 Chevy c10? I run it on all my rigs. Love the stuff. Did wonders on my 59 and 78 even helped the 87 tbi. Didnt help the international travelall though but then nothing will. Posted via Mobile Device oh yeah pvc line or brake booster line. Then stand by for smoke... Last edited by meter swinger; 10-04-2011 at 06:48 PM. Reason: addittion.

10-04-2011, 10:40 PM	#6
1LowToy Registered User Join Date: Nov 2009 Location: Sonora California Posts: 860	Re: Seafoam on Carb'd '86 Chevy c10? Any Pics!!!!!! Sorry couldn't help it. I'm on my 5th bourbon 7 Actually Seafoam is amazing stuff

10-04-2011, 11:02 PM	#7
rayfinseats Registered User Join Date: Dec 2010 Location: sioux city, iowa Posts: 619	Re: Seafoam on Carb'd '86 Chevy c10? I use it gas tank only. Good stuff.

10-05-2011, 12:49 AM	#8
matts86chev Registered User Join Date: Feb 2011 Location: Chula Vista, CA Posts: 34	Re: Seafoam on Carb'd '86 Chevy c10? I poured a third of it down through the carb while it was running, it kept trying to die so I would stop pouring for a bit, then when I got to the end of that 1/3 of the bottle I poured it in and let it die added another third to the gas tank and the final third to the crankcase. Let it sit for about 20 minutes and started it up. Smoked and stank like hell but after that MAN was there a difference! I drove it about 10 miles around to get the oil circulating and then went home let it sit some more and changed the oil. I didn't think it would actually do much but I already notice a huge difference even just in the smoothness of the idle and the acceleration near the bottom! I'm gunna make a habit of doing this every oil change! __________________ 1986 Chevy C10 305 5.0L Work in progress...

10-05-2011, 02:20 AM	#9
gofastbobby Registered User Join Date: Mar 2011 Location: Kalamazoo, MI Posts: 120	Re: Seafoam on Carb'd '86 Chevy c10? I just ran a bottle through my gas tank last week. I haven't run the truck in over a year. I am not sure if it's the seafoam or just because I am actually driving it. Either way the truck is running better. Posted via Mobile Device __________________ '76 C10 "BIG10" SWB 454/400 Mostly Stock.

10-05-2011, 06:50 AM	#10
motornut 78K & 79C Jimmys Join Date: Nov 2009 Location: Ottawa Ont CANADA Posts: 7,901	Re: Seafoam on Carb'd '86 Chevy c10? have to see if i can find it up here would like to try it __________________ John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350



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