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Seafoam

79rustyk10

79rustyk10

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Anybody else ever use it where you suck the can through a vacuum hose to clean out the inside of the engine? I sucked the can through a vac hose, let it sit overnight is all.

I did this on my ford the other day, I sucked the can through a vac hose, let it sit overnight. Instantly I noticed a huge impovement in off idle driveability and throttle response, it doesnt lug as much going up hills at slower speeds in OD anymore either.

The best part was the HUGE white cloud behind me for about a mile and a half the next morning.:D

Anyone else do this and have a noticable improvement? I saw this in a thread over at fullsizebronco.com, I guess there is some usefull tech over there lol.
 
There is a mopar can called combustion chamber cleaner. Same thing. Spray it down the t-body until the engine stalls. Let it sit overnight. Then run the crap out of it. Works great
 
dumped half a can in the trailblazer brake vacuum line, while it was running, let it sit for 20 minutes. Started it back up and idle to 2500 rpm for a few minutes all of the smoke show was over. She got back from the grocery store asking what I did. Must do something right. I dump in a can every 3 oil changes in the suburban too.
 
Just a vac hose on the carb? Hmm never heard of doing that. Stuff does seem to work wonders on gummed up motors. My motors new so no need for it there, but my carve kinda junky, wonder if it would clear it out a bit.
 
a double can shock per tankful every 4 months will keep your fuel system like new too...
 
I put a can in my cars every spring after the cold is done and I switch over to heavier summer oil, best thing for them. My Yukon has 180,000 miles and I can put over 6,000 miles on an oil change and there is still life in the oil (judging by that it's still got color and not black) I love the way it works. A few years ago I got pulled over for leaving the smoke show on my way out of town, cop asked me if anything was wrong, I told him "No, just doing some spring cleaning!" :D

Also, I buy a change of cheap oil, a filter, and run seafoam in the engine with the cheap oil per instructions, drain it and put the good stuff in. That cheap oil comes out black!
 
yup, does wonders for both crankcase and combustion chamber...... it's a staple of good marine maintenance....
 
Hmm...I might have to try that on my K5...doesnt quite have the snap it did when I first got it, course a set of plugs wouldnt hurt anything either its been close to 40,000 miles since I got it.
 
I ran a tankful thru my 99 with the 4.8l...runs like new money, even with 225K miles. Big improvement:waytogo:

still want to try the vacuum line version....
 
Year or so ago we did my buddy's 210,000 mile Toyota Camry that has gotten shaky maintenance at time.
Ran it through the brake booster vacuum line and some in the tank.

He lives on a packed suburban neighborhood street and the smoke cloud that came out of the tailpipe was huge and enveloped the neighbor's house. His car definitely ran a little smoother afterward.
 
So to do this, would you just need to unhook a vacuum line and have it suck it up?
 
1 - any vac source below the throttle plate... or you can just pour it down the carb/tbi too... helps with carbon buildup...

2- add to fuel tank for clean injectors, carb, etc..

3 - add to crankcase to get rid of varnish, sludge, etc...
 
Sea foamed the blazer in gas tank a couple times, vacuum line, and in the crankcase. Sure had some funky colors coming out of the tail pipes after I did the vacuum line.

Also dumped some in my 93 Indy sport(sled), seemed to idle much healthier/cold idle better after.
 
I've used it on small engines,it has saved me from having to pull the carbs apart and clean them more than once...I dont know what in that stuff,it smells like diesel fuel and just says "contains petroleum distillates" on the label,but it works a lot better than plain kerosene or diesel does...I haven't tried it in my diesels but have been tempted too...I've seen big carbon chunks blow out the tailpipe on some engines that were douched with it via the vacuum hose ,then let sit,and re-started after awhile...the smoke cloud it makes can get you in trouble if you do it in a residential area though!...it really wakes up engines with a lot of crusty build up under the intake valves..
 
Oil?

I've never heard of sea foam in the oil, I bet that'd be a great way to clean some sludge out. I'll have to do that next oil change. Which will be soon.

How long should I drive around with it in? Does the can mention how much to use as well?
 
just add the pint and leave it in, change oil when due or dirty...
 
Kinda thinking it's some kind of mix of alcohol and maybe something akin to kerosene. Smells like it and always reminds me of when you put a little diesel in a gas engine. Knew an old guy who'd put a few gallons of diesel in his gas vehicle's fuel tank every now and then "just to lean it out". Seemed to do about the same.:dunno:

swettysblazer said:
So to do this, would you just need to unhook a vacuum line and have it suck it up?
Click to expand...


When I've done it I've always used the tube from the brake master cylinder...however that's been on a variety of vehicles with more modern fuel injection than TBI...can't say where the best place to do it on a TBI motor would be.
 
I've used it but I've got some questions/ concerns. This is my DD s10.

1) When I did the vac line, I let it suck it up slowly and then sit. You really need to let it go into the engine slowly, I wouldn't just stick the hose into the can, I used a funnel and poured slowly, don't drown the engine, it's prolly not good. The vac line works great because it leads right into all the runners and it's a big hose.

2) The more smoke that comes out of the exhaust, the better. If it's just whitish smoke, it might just be the SeaFoam burning off. So if you don't feel a difference, your engine was probably already pretty clean inside the runners and combustion area.

3) You are HOPING to get as much crap out of the engine as possible. The more the better right? I have to consider my O2 sensors and CAT (use to have a pre-cat too). The better the cleaning, the more crap that is going through the exhaust system. When I did it, I already had new O2 sensors to put in and I was removing my pre-cat. The truck runs fine, so I guess the main CAT is still good.

4) When cleaning the crankcase, I would be worried about dirt or slug working free and ending up back in the system. Meaning... that garbage ends up back in the pump, into the bearings, and all orifices. I would rather let it stay, change the oil every 4k miles, and use a good filter at that time also.

5) It's great in the gas tank, better than the alternatives. :waytogo:

:dunno:
 
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