Any one ever tried Seafoam?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JAB'70 · 02-25-2008, 05:47 AM

I was wondering if that seafoam stuff really works. I have 350 in my '70 c10, I've did quite a bit of work to the motor since I last year. The previous owner did keep the maintenence up on it and I plan on getting a rebuild once my funds are saved up. I was told that seafoam would do wonders for it until I get around to rebuilding the motor.

harmsy · 02-25-2008, 06:22 AM

I'm not a fan of seafoam....Maybe its because I sell Justice Brothers.

Sweet72 · 02-25-2008, 06:42 AM

I'm not a fan of the "overhaul in a can" products, but have used Seafoam in an 200k mi. 302 blue oval motor when it had a sticking exhaust valve/lifter. Directly in the engine oil and idled for 10 min and then changed oil. I got lucky, the valve freed itself after a few miles. Also pulled a can through the intake via the brake booster vacuum line and man did it smoke! follow the directions on the can and good luck.

cdowns · 02-25-2008, 07:10 AM

when i see foam i drink it

**tkeduk8r** · 02-25-2008, 07:34 AM

I like it... is it a miracle cure... no, but just like ny other tool when used correctly I thnk you can get positive results... I like to use it on older eninges to remove carbon from valves, seats, ports and piston tops by sucking it through a vacuum line into the intake... one can per motor and it seems to have worked... I have had my auto students pull a head, look at the build up, re-install it, run a de-carbonizer (seaform, JB or other) and remove the head a second time and it does do a bit of cleaning... super clean.. no, but significantly better than before.. yes... GM and 3M sell intake cleaning kits that use basically the same chemistry albeit you can run it into your fuel line via a schraeder valve... JMO...
--Mike

Sweet72 · 02-25-2008, 07:37 AM

Quote:

Originally Posted by cdowns

when i see foam i drink it

LOL!

GREASEMONKEY72 · 02-25-2008, 07:37 AM

do a search on the forum and youll find a few threads about it with alot of info on it

i have used it personally and it does make a big improvement in performance

79oldj · 02-25-2008, 07:41 AM

I personally like it. Never was a big fan of cures in a can, but I have used it with some success on million mile bowties,and lawn mowers and other used and abused engines.

463 · 02-25-2008, 07:43 AM

the seafoam works! i use it in all my engines. 463

1BAD64 · 02-25-2008, 07:53 AM

how about on a 88. just suck it through the brake booster line?

GREASEMONKEY72 · 02-25-2008, 07:55 AM

Quote:

Originally Posted by 1BAD64

how about on a 88. just suck it through the brake booster line?

yes

1BAD64 · 02-25-2008, 07:56 AM

was wondering cause ive got a valve chattering when i get on it.

GREASEMONKEY72 · 02-25-2008, 08:03 AM

Quote:

Originally Posted by 1BAD64

was wondering cause ive got a valve chattering when i get on it.

put half the can in the crankcase and drive around a bit and once you get back then suck the other half through the brake booster then shut it off once its all in and wait about 10min then start it and let it idle till the smoke clears then change the oil

1BAD64 · 02-25-2008, 08:04 AM

thank you for the info. so if my motor blows you will fix it? just kidding lol

70' GMC · 02-25-2008, 08:17 AM

I poured a little bit through the carb, and it did wonders it blew smoke out the back of the tail pipes. I then poured the rest in the gas tank, then went and got some 93 octane which helps it run cleaner.

crazy longhorn · 02-25-2008, 09:02 AM

Everybody has there own favorite I guess.....I like to run a couple bottles of Techron consentrate through my 69 after it sits for the season. Chevron puts this out, as a fuel injector cleaner, but its also good to clean up the valves. Just dump it in the tank & drive. IMO, the best injector cleaner I have used....I use it in the wifeys 03 B ville, & my 93 turd ranger also. crazyL

mvfd70 · 02-25-2008, 09:12 AM

I use seafoam and I like it. I pour a can of it in the gas tank every 5000miles or so in my z71 and my wife's jeep. Helps keep valves clean and I see a little increase in performance

ERASER5 · 02-25-2008, 09:37 AM

I like Sea Foam. I use Sea Foam. It is not a "tune-in-a-can."

It is a cleaner. A powerful cleaner. Use as directed. Do not under any circumstances leave Sea Foam in the carb or in the oil pan. The Sea Foam, after attacking the gunk, will then eat certain metals fast. Diluted in the gas is fine.

This is a case of a little goes a long way.

JAB'70 · 02-26-2008, 04:08 AM

Thanks, I appreciate the info...may or may not give it a try.

straitnate14 · 02-27-2008, 10:49 AM

worked wounders in my freinds 87 5 liter beater that it had a terible idle and low throttle issue and it fixed it it was like a brand new engine, got to love the smoke screen affect

tim21391 · 02-27-2008, 11:21 AM

i heard that if you pour too much that it will run sh**ier that true?

02-25-2008, 05:47 AM	#1
JAB'70 Registered User Join Date: May 2007 Location: South Carolina Posts: 54	Any one ever tried Seafoam?? I was wondering if that seafoam stuff really works. I have 350 in my '70 c10, I've did quite a bit of work to the motor since I last year. The previous owner did keep the maintenence up on it and I plan on getting a rebuild once my funds are saved up. I was told that seafoam would do wonders for it until I get around to rebuilding the motor.

02-25-2008, 06:22 AM	#2
harmsy Registered User Join Date: Jan 2007 Location: Iowa Posts: 100	Re: Any one ever tried Seafoam?? I'm not a fan of seafoam....Maybe its because I sell Justice Brothers. __________________ God bless the USA 1972 Chevrolet Cheyene Super ......

02-25-2008, 06:42 AM	#3
Sweet72 Registered User Join Date: Nov 2003 Location: Alexandria, VA Posts: 1,534	Re: Any one ever tried Seafoam?? I'm not a fan of the "overhaul in a can" products, but have used Seafoam in an 200k mi. 302 blue oval motor when it had a sticking exhaust valve/lifter. Directly in the engine oil and idled for 10 min and then changed oil. I got lucky, the valve freed itself after a few miles. Also pulled a can through the intake via the brake booster vacuum line and man did it smoke! follow the directions on the can and good luck. __________________ '72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.

02-25-2008, 07:10 AM	#4
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Any one ever tried Seafoam?? when i see foam i drink it Attached Images __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

02-25-2008, 07:34 AM	#5
tkeduk8r Senior Member Join Date: Apr 2001 Location: Alexandria, MN Posts: 1,462	Re: Any one ever tried Seafoam?? I like it... is it a miracle cure... no, but just like ny other tool when used correctly I thnk you can get positive results... I like to use it on older eninges to remove carbon from valves, seats, ports and piston tops by sucking it through a vacuum line into the intake... one can per motor and it seems to have worked... I have had my auto students pull a head, look at the build up, re-install it, run a de-carbonizer (seaform, JB or other) and remove the head a second time and it does do a bit of cleaning... super clean.. no, but significantly better than before.. yes... GM and 3M sell intake cleaning kits that use basically the same chemistry albeit you can run it into your fuel line via a schraeder valve... JMO... --Mike __________________ 63 C20 2WD, 230/SM420/4.11 73K 68 C30 dump truck, 327,SM425,4.56 66K original 68 C10 2WD SWB Stepper, 250/3-tree/3.73 66K.... Wifes 68 Buick Skylark Custom Conv., 350/TH400/2.56 In our family since '79 69 GMC 1500 SWB 2WD, 350/TH350/3.73 posi... 70 K10 SWB 4X4 4-sp,ps, pb, tilt, buckets, console, sliding back window (Need AC parts) WIP 72 Chevy K20 4x4 350/350/205/4.56 donor 72 Vette 350/M21/3.70 posi, triple black and super fast 84 Olds Cutlass Brougham 350/2004r/4.11 was Dad's

02-25-2008, 07:37 AM	#7
GREASEMONKEY72 Registered User Join Date: Aug 2006 Location: Bakersfield,CA Posts: 7,893	Re: Any one ever tried Seafoam?? do a search on the forum and youll find a few threads about it with alot of info on it i have used it personally and it does make a big improvement in performance __________________ -steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME

02-25-2008, 07:41 AM	#8
79oldj Registered User Join Date: Dec 2007 Location: Tennessee IL Posts: 42	Re: Any one ever tried Seafoam?? I personally like it. Never was a big fan of cures in a can, but I have used it with some success on million mile bowties,and lawn mowers and other used and abused engines.

02-25-2008, 07:43 AM	#9
463 Registered User Join Date: Nov 2007 Location: Sask Canada Posts: 1,666	Re: Any one ever tried Seafoam?? the seafoam works! i use it in all my engines. 463

02-25-2008, 07:53 AM	#10
1BAD64 Registered User Join Date: Jan 2006 Location: MISSOURI Posts: 232	Re: Any one ever tried Seafoam?? how about on a 88. just suck it through the brake booster line?

02-25-2008, 07:56 AM	#12
1BAD64 Registered User Join Date: Jan 2006 Location: MISSOURI Posts: 232	Re: Any one ever tried Seafoam?? was wondering cause ive got a valve chattering when i get on it.

02-25-2008, 08:04 AM	#14
1BAD64 Registered User Join Date: Jan 2006 Location: MISSOURI Posts: 232	Re: Any one ever tried Seafoam?? thank you for the info. so if my motor blows you will fix it? just kidding lol

02-25-2008, 08:17 AM	#15
70' GMC HERE.......Somewhere Join Date: Oct 2006 Location: Birmingham AL Posts: 2,488	Re: Any one ever tried Seafoam?? I poured a little bit through the carb, and it did wonders it blew smoke out the back of the tail pipes. I then poured the rest in the gas tank, then went and got some 93 octane which helps it run cleaner. __________________ Current rides: 2013 Hyundai elantra gt DD 1995 camaro my first crush lmao Was: 1970 with a 350 4barrel and 288 horses Classics make it possible!

02-25-2008, 09:02 AM	#16
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	Re: Any one ever tried Seafoam?? Everybody has there own favorite I guess.....I like to run a couple bottles of Techron consentrate through my 69 after it sits for the season. Chevron puts this out, as a fuel injector cleaner, but its also good to clean up the valves. Just dump it in the tank & drive. IMO, the best injector cleaner I have used....I use it in the wifeys 03 B ville, & my 93 turd ranger also. crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

02-25-2008, 09:12 AM	#17
mvfd70 Registered User Join Date: Jan 2007 Location: Opdyke, IL Posts: 775	Re: Any one ever tried Seafoam?? I use seafoam and I like it. I pour a can of it in the gas tank every 5000miles or so in my z71 and my wife's jeep. Helps keep valves clean and I see a little increase in performance __________________ 1978 Chevrolet Silverado 3/4 ton 400 small block. 2000 F-250 Powerstroke 2002 GMC Yukon Denali XL

02-25-2008, 09:37 AM	#18
ERASER5 Registered User Join Date: Jun 2006 Location: Indiana Posts: 4,859	Re: Any one ever tried Seafoam?? I like Sea Foam. I use Sea Foam. It is not a "tune-in-a-can." It is a cleaner. A powerful cleaner. Use as directed. Do not under any circumstances leave Sea Foam in the carb or in the oil pan. The Sea Foam, after attacking the gunk, will then eat certain metals fast. Diluted in the gas is fine. This is a case of a little goes a long way. __________________ '70 GMC C1500 LWB Power disc brakes. WooHoo! Posi 6 Lug Dana 60



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02-26-2008, 04:08 AM	#19
JAB'70 Registered User Join Date: May 2007 Location: South Carolina Posts: 54	Re: Any one ever tried Seafoam?? Thanks, I appreciate the info...may or may not give it a try.

02-27-2008, 10:49 AM	#20
straitnate14 Registered User Join Date: Feb 2008 Location: Bartonville IL Posts: 415	Re: Any one ever tried Seafoam?? worked wounders in my freinds 87 5 liter beater that it had a terible idle and low throttle issue and it fixed it it was like a brand new engine, got to love the smoke screen affect

02-27-2008, 11:21 AM	#21
tim21391 Registered User Join Date: Jul 2007 Location: Salina, Kansas Posts: 1,998	Re: Any one ever tried Seafoam?? i heard that if you pour too much that it will run sh**ier that true?

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