Sea Foam in Vaccuum Lines

Discussion in 'Maintenance & Upkeep' started by Farmerdave, Jun 14, 2010.

  1. sask boy

    sask boy New Member

    I use seafoam as a stablizer in my boat motor and it works great is it the same product that you are using in your vehicle motors?
  2. Mean_Green_95

    Mean_Green_95 Epic Member 5+ Years 1000 Posts

    Seafoam is a God-send. I've used it in every manner possible. I put it through the vacuum using a vacuum canister. Not a whole lot of smoke, probably b/c I use only Chevron gas. I put it in the oil when I first got the truck. I put it in about 200 miles before the change and WOW! Tons of black goop came out. I did it a couple of times and now the oil comes out a dark honey color even though the engine has 178K on it. I also put it in the gas tank and picked up a few mpg and better throttle response.
  3. ChivaLRy

    ChivaLRy Rockstar

    Well, after reading alot of testimonials, etc., and 500$ for 2 clogged injectors to be replaced, I think that I'm gonna give this stuff a try!
  4. Davelopn

    Davelopn Member

    For a $6-8 investment, its well worth the try. It can surely save some money in the long run!
  5. rowekmr

    rowekmr Member

    I checked out their website and after reading your stories I am ready to give SeaFoam a try. Can anyone tell me where I can pour it into my manifold on my 96 7.4L Vortec (3500 CC DRW)? On the website it showed the pcv line will that be sufficient to clean the manifold?
  6. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    Just be sure that you idle the motor up to around 1100-1500RPM... And let it sit for an hour minimum.
  7. rowekmr

    rowekmr Member

    When you say let it sit for a hour is that after you pour the sea foam and before you start the motor?

  8. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    Yep... After you have put the seafoam in.
  9. L0sts0ul

    L0sts0ul Rockstar 100 Posts


    so I bought 2 cans of seafoam today. I was going to put 1/3 can in the brake booster vacuum line, 1/3 in the tank ( Im not convinced this is enough though) and 1/3 in the crankcase....

    but I want to drive at least another 2000kms before I change the oil... this ok?

    also, I have a 93 TBI... can I pour into tbi as you would into a normal carb instead of the vacuum line?

    ---------- Post added at 06:58 PM ---------- Previous post was at 06:56 PM ----------

    could I pour an entire can into the tank? Im pretty sure its at least 150L...,
  10. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    I would do the TBI via the brake line it disperses better when you put it in the brake vaccum line. As for the oil i would wait till you only have 200-300 KMs at most. As for the amount into the fuel tank i would just put the can in there if you are planning on going thru that tank of fuel pretty quickly. Alot of the guys in the snowmobile community use Seafoam as a stabilizer and we pour in quite a bit more than reccommended. But burning it quickly will help to clean it out faster.

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