HI everyone, this is my first post. I have a question, more to the point I wanted to get everyones opinion. I have a 97' F150 with the 4.6, with 160,000 on the engine. My question is, I want to put sea foam in the engine to clean it out. Some friends have told me not to do it, because they feel that soing so might loosen up the engine and cause me problems.
Thanks in advance.

 

What exactley do they mean 'loosen up the engine"?

I, along with hundreds of others here, have done it quite a bit and havent had a problem with it. Its great stuff if you ask me. Cleans that carbon stuff of good.
My truck has 140,000 on it and the SeaFoam hasnt hurt it one bit.

 

I Seafoamed my truck with 103K on the clock
I SeaFoamed my friends Landcruiser with 180K
I SeaFoamed my cousin's 5.0 Exploder with 209K
All of them have had great results, better throttle response, faster acceleration, better MPG. It's great stuff.

 

Hi by loosening up they are reffering to lifters loosening up along with the sluge being remove it might open up clearences and cause rattling. I want to clean out the engine, but there is always that uncertainty.

 

Thanks so far for the info. One additional question, I saw in another post that you put it in then run about 100 miles is that correct?

 

Slude?? Only if you put it in your oil, which I did on my truck and it didn't affect it at all. I only ran it in the engine for less than 100 miles though. And the carbon deposits that you will break up will burn up in the engine and come out in the white smoke.

 

Okay sorry about spelling, I'm going toput it in tommorow. I have additional questions but will post new thread later.
Thanks again.

 

Your engine doesnt have lifters
Its not a pushrod engine

I dont think your going to get any rattling by getting rid of the sludge. Its not supposed to be there in the first place. So that would mean when your engine was new and clean it would rattle. And any clearances that were covered by the sludge and then uncovered by the Seafoam, were supposed to be open in the first place.

I have no idea where they are coming from, but your not going to get any problems/cause any damage, by using the SeaFoam if you do it correctley.

Ive never seen anything about running it for 100 miles? Maybe when dump it in your oil, Ive never done that before though.

I pour about half a can into a container (Cool whip or something) and suck it up through the brake booster vaccum line. Once its all sucked up, shut the truck off quick and wait for about 10 minutes. Now start it, and give it some gas. If you live in a residental area you might want to do it out in the country. Youll get A LOT of smoke
I usually run a whole can through (so do this twice).

Someone did a good write up on it but I cant find it.

 

The 100 miles thing is recommended if and only IF you pour the SeaFoam directly into the crank case. If you run it through the gas tank or brake booster vacuum line you don't have to worry about it. I have run seafoam through several vehicles and have yet to see a huge cloud of smoke. I think my neighbor ran it through his old chevy once though. I would have sworn that his place was on fire...I couldn't even see his house! LOL

 

I was going to put it in the oil. Also I was not thinking when I mentioned lifters, I knew that it didn't have lifters. Also I've done it through the brake booster line, wow the smoke.

 

Mine had no smoke at start up, and it had little to none as I revved it up to about 2500 RPM. Then I gave it the "italian tune up", ie get up on it and don't let off, and wow musta left a 1/4 mile smoke sting.

 

I used it for the first time about two months ago. I put a half can in each tank, and a whole can through the brake booster line. I let the latter sit for 30 minutes, and when I restarted it, didn't notice much smoke, so I raised the idle to about 2000 rpms, and it smoked so thick I'm shocked the fire department didn't come. The truck runs better than it has since it was new.

 

Is it running ok? If it aint broke dont fix it.

 

I gotta agree with you on that one!

 

Ran a full can of that stuff today, half through the brake booster line, and half in the gas tank. Did anyone elses car run after you turned it off? Mine ran for a good 10 seconds after the key was out. I thought about pulling the battery cable. But i dont know if htat would have helped.

But the smoke was nice, pissed off the guy enjoying his smoke break in his vehicle. I figured since he was already smoking, i'd "Help" him along some

Picks up much smoother in the higher rpm range and likes to drop the needle once it gets past the TDC of the tack. Worked great!!