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post #1 of 16 (permalink) Old 10-24-2006, 02:36 PM Thread Starter
 
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Question Is using Sea Foam for 5 days straight too much?

Hi folks. I'm just a Mopar passerby, but this question may still be helpful for other Intrepid owners and there seems to be some good knowledge collected here about Sea Foam usage. Thanks in advance.


Q: Would using Sea Foam on the intake for 5 days straight be too much?

I have a sweet 1988 Chrysler New Yorker that needs an intake manifold cleaning bad. It had a lifelong problem with the valve cover letting too much oil blow through the PCV valve into the intake. The valve cover has been replaced with the corrected version, but now I'd like to clean-up the years of varnish.

It took me 1 hour to scrub the blackened varnish out of the intake plenum with mineral spirits and steel wool!

But, it's still in the intake manifold itself and probably on top of the valves as well. After many years, there is a paper thick layer of hardend oil.

I was thinking about doing a Sea Foam intake cleansing every day for about a week.

Procedure:

At night, I would do 1/3 pint(can), wait 15 minutes, run engine for 5 minutes. Follow with one more 1/3 pint and let sit overnight. Then, purge in the morning before heading to work.

Repeat for at least 5 days.

So, am I going to damage something? The only thing I can guess at is maybe drying out a gasket, but I have no basis for that except that I heard someone on another forum mention that BG 44K could possibly do that with just normal use. And, the can says that it's O2 sensor safe.

Thanks!

P.S. I emailed Sea Foam Sales the same question and I'll post their reply if they respond.

Last edited by DenverNYer; 10-24-2006 at 06:03 PM.
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post #2 of 16 (permalink) Old 10-24-2006, 03:18 PM
 
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way too much..........

Water is also 'baby safe' but too much of it and you've drowned the kid.

Cleaning additives aren't meant to be used as a substitute for a tear down. Light cleaning is about all you can expect. If you have a severely junked up motor, the only way to do it right is to pull things apart.
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post #3 of 16 (permalink) Old 10-24-2006, 03:39 PM Thread Starter
 
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Originally Posted by '98-ESer
way too much..........
I can understand your philosphical reply, "Too much of anything is bad", but I'm seeking to know exactly what is in jeapardy. If I know, then maybe it will be ok. Maybe whatever goes bad is already old and in need of replacing anyways later down the road if it's not too expensive.
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post #4 of 16 (permalink) Old 10-24-2006, 04:55 PM
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i know others can probably answer better than me........but if you have to take such drastic measures to keep the intake clean...it sounds like you are just prolonging the inevitable.
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post #5 of 16 (permalink) Old 10-24-2006, 06:05 PM Thread Starter
 
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Quote:
Originally Posted by IceDragon38
i know others can probably answer better than me........but if you have to take such drastic measures to keep the intake clean...it sounds like you are just prolonging the inevitable.

Whoops! I failed to mention that I corrected the PCV oil sucking problem with an updated valve cover. So, there's no more oil getting sucked into the intake anymore. But, I still want to clean it up.
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post #6 of 16 (permalink) Old 10-24-2006, 06:19 PM
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You are still missing the point... if you are sincerely worried about the build-up, you need to get out your trusty Haynes manual, start taking things apart, clean them, or possibly replace them, to take care of your problem. You'll never clean it with seafoam as good as you can by actually getting into those parts yourself and putting some elbow grease into it. And 5 days is just ridiculous, in my opinion. It seems that if nothing helped the first day, not much else will be cleaned by the 5th day. This is coming from someone who has never used seafoam before but I understand the concept pretty well.

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post #7 of 16 (permalink) Old 10-24-2006, 06:26 PM
 
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Sounds like something my pothead buddy who calls himself a mechanic would do. Either be smart and don't do it, or get really really high, disconect a gas line a light up. That should clean out that thing pretty well.

Sorry for coming off like a jackass. If your going to do it, don't be surprized if you are going to have to either pay alot of money to either get it fixed or buy a new car. But who knows, I've heard and seen some crazy shit done to cars that actually fix the problem.
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post #8 of 16 (permalink) Old 10-24-2006, 07:07 PM Thread Starter
 
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I see your guys point for doing it the "right" orthodox way. But, the thing is, this is my daily driver and if Sea Foam was indeed extreemly safe, at least for the induction system, then what the heck? I've scoured the Internet and can't find one bad report on Sea Foam and it's been around for years. Surely there must be at least ONE bad report out there if there was even the minutest danger.

I got a reply from Sea Foam Sales and they said it would be fine (after fixing the oil problem). They don't seem to be paranoid about giving out advice that doesn't strictly follow the directions on the can.

Sea Foam Sales Reply
================

Remember, the intake manifold, even if you fix your PCV oil consumption problem will probably NEVER get clean unless you took the manifold off the engine and physically cleaned it. Even after cleaning, other contamination is going to happen as the engine consumes air through the throttle body, and with the valve timing needed for today's engines, unused fuel/air and exhaust get into the engine induction system and contaminate.

That is why you need to clean the throttle body assembly, blades, seating areas for the blades, etc. They get contaminated with the dirty air coming into the engine through them, as well as the contamination that comes from the intake runner and valve called "Backwash".

Backwash is caused by engine camshaft overlap/timing that throws a small amount of both fuel and air mixture back into the manifold as the intake valve is closing with the piston beginning to come up in the cylinder, and the same scenario as the intake valve just begins to open while there is still some exhaust pressure in the cylinder.

Fix your PCV oil consumption, there are aftermarket PCV fixes that help restrict the oil's ability to get to that valve, and there may be one designed for or can be modified to fit your engine. You'll have to talk to a really savvy parts guy or someone in the speed equipment business to start with. Aftermarket manufacturers who offer solutions include Mr. Gasket Company and Moroso Performance.Maybe check with Chryslers old "Direct Connection" outlets now called Mopar Performance, through some speed outlets or your dealer.

It is not going to hurt anything to do 200 top end cleanings to your engine using SEA FOAM, as long as it is done properly. Sea Foam is OIL, and it looks like you understand the benefits of "a heat soak period".

Be really choosey as to where you put Sea Foam into the intake, you want the intake and the engine AS WARM AS POSSIBLE to help Sea Foam spread into the contamination and work at cleaning it. Look for any size vacuum port as close to the blades of the throttle body as possible, and be sure that from that location product will distribute to all cylinders equally, otherwise don't even bother, you got to get them all!

As for other brands of cleaners, for safety sake, protect all the components by using only 100%OIL based products, I believe your 44K is very heavily CHEMICAL!!
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post #9 of 16 (permalink) Old 10-24-2006, 07:15 PM
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You aren't going to get good results from any question you have if you take what people offer as advice and say that you don't want to even entertain the idea. Theres a reason you were asking if it was ok, and that reason was you didn't want to try it without being sure. We are telling you a BETTER and actually a more accurate and thorough way to clean your intake, etc. I wouldn't trust the natural flow of any chemical through your engine to clean everything and to its fullest. Why do it this way when its just a tiny bandaid on an issue that needs to be fixed permanently, or at least as permanent as it can be?

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post #10 of 16 (permalink) Old 10-24-2006, 07:29 PM Thread Starter
 
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Quote:
Originally Posted by JLWX5
You aren't going to get good results from any question you have if you take what people offer as advice and say that you don't want to even entertain the idea. Theres a reason you were asking if it was ok, and that reason was you didn't want to try it without being sure. We are telling you a BETTER and actually a more accurate and thorough way to clean your intake, etc. I wouldn't trust the natural flow of any chemical through your engine to clean everything and to its fullest. Why do it this way when its just a tiny bandaid on an issue that needs to be fixed permanently, or at least as permanent as it can be?

Josiah
Josiah, I don't know what to tell you. I've already noted and acknowledged those suggestions to clean it through disassembly. They are valid... not much more entertaining to do about it since we all know what's involved. I've entertained that idea many times over the past 2 months. That option is not disregared; only tabled for the moment while I research the Sea Foam alternative thoroughly.

Thanks for your repsonse.
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post #11 of 16 (permalink) Old 10-24-2006, 07:36 PM
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If seafoam works so good, then wouldn't u only need to do it once instead of five straight days?

When it comes to cleaning something, nothing beats good old fashioned elbow grease. Chemicals work fine, but how will you know they got the job done unless you take it apart and see for yourself?
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post #12 of 16 (permalink) Old 10-24-2006, 07:58 PM Thread Starter
 
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Yeah, this is all theoretical. So, if I get the impression that it's relatively safe, I will try it and then pull off the plenum and look down the intake ports and see how it looks compared to the last time I saw it.
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post #13 of 16 (permalink) Old 10-24-2006, 08:47 PM
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Quote:
Originally Posted by DenverNYer
I can understand your philosphical reply, "Too much of anything is bad", but I'm seeking to know exactly what is in jeapardy. If I know, then maybe it will be ok. Maybe whatever goes bad is already old and in need of replacing anyways later down the road if it's not too expensive.
My opinion --take it or leave it...
The problem with overdoing Seafoam or any other chemiical cleaner in an oil varnished intake would be:
If steel wool and mineral spirits took as much work as you say to clean the plenum, which stays relatively cool compared to the intake and cylinders, then the solvents in Seafoam (mainly NAPTHA, aka lighter fluid), are likely to either just loosen and redistribute the baked on gunk or make it flake off in uneven chunks...

Anything that you do loosen up or that gets cleaned from the intake will have to pass through the intake valves, cylinders, exhaust valves and entire exhaust system on its way out the tailpipe...One small chunk of carbonized crud that gets stuck to a valve seat as the valve closes and you run the risk of burnt valves, because the valve needs to make full contact with the valve seat in the head in order to dissipate the heat built up during combustion..Or it could just redeposit the stuff from the intake into the hot pistons and valves...

There are numerous other things that could be damaging by introducing a lot of any solvent into the engine... as well as possibly some helpful cleaning of the internal parts.. But you gotta remember you are going to wash almost 20 years of accumulated "stuff" out of the intake and run it through the entire engine!! There is just no substitute for taking apart and cleaning parts...

I have used Seafoam hundreds of times for many years in many vehicles--, in the gas tank, crankcase and through the intake..And always had good results with it for routine maintenence type of cleaning .... But if it takes that many continuous treatments it really needs to be cleaned the old fashioned way...
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post #14 of 16 (permalink) Old 10-25-2006, 01:29 PM Thread Starter
 
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Quote:
Originally Posted by lextrep
My opinion --take it or leave it...
[snip]
Thanks, I'll take it! But, fortunately, I can leave the worry about varnish flaking away or coming off in chunks. While I was in there, it didn't seem to be that kind of accumulation or texture. But, your points are well taken. Thanks.
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post #15 of 16 (permalink) Old 10-25-2006, 02:09 PM
 
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Maybe give this a look see

http://www.auto-rx.com/pages/pov.htm
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