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Old 10-18-2010, 08:49 PM   #1
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low compression

Guys,

If I did a compression test and got: #1: 80 psi, #2: 135 psi, #3 thru #8:160 psi ......does that mean I have a head gasket leak between cyl 1 and 2? or would both cylinders be 80? wet test was still 80 for #1 and 150 for #2. All the others stayed at 160.
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Old 10-18-2010, 09:41 PM   #2
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Re: low compression

80 is really low. 135 isnt that bad at perfect condition you want it at 160psi. If yor car has a lot of miles on it the compression is be to lower. What I advice you is to buy an engine restorer and lubricant. Its the cheapest thing I can tell you to do about 9 bucks for the can. Do the test about 2 weeks later and see if there is a difference. I put "automotive restore products" (silver cylinder can) I put it and noticed a dramatic result: less shaking, more power, better sound, hell the tires can even burn out a little now from a stop. Try it, let me no what happens
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Old 10-18-2010, 10:54 PM   #3
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Re: low compression

I LOVE THAT STUFF!!!! those little silver cans are magic
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Old 10-18-2010, 11:00 PM   #4
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Re: low compression

Also run a can of seafoam throught the vacuum intake. Frees up those sticky valves, lifters, and cleans the carbon out of your cylinders
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Old 10-18-2010, 11:24 PM   #5
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Re: low compression

yea they should call it "magic in a can" Seaform? never heard of it adds horsepower i would think right, probably mpg as well?
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Old 10-19-2010, 08:12 AM   #6
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Re: low compression

10% variance is what they say any more and you should get it looked into
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Old 10-19-2010, 05:07 PM   #7
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Re: low compression

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Originally Posted by tvsr View Post
yea they should call it "magic in a can" Seaform? never heard of it adds horsepower i would think right, probably mpg as well?

Next time you're at an auto parts store ask for seafoam and read the label. It's easier than me trying to explain it lol
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Old 10-19-2010, 06:03 PM   #8
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Re: low compression

YES YES!! Seafoam is awesome even use it on my boat watch this video on how to use it in your mustang, ita a great video using a mustang hears the link.........
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Old 10-19-2010, 10:45 PM   #9
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Re: low compression

DAmn that suks just did my oil change cant do it till i change my oil is what it says!
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Old 10-19-2010, 10:51 PM   #10
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Re: low compression

I think you can put the engine restorer in there anytime. If you're talking about the seafoam you can do that anytime, but I never put it in my oil, because if it can break down carbon that easily, what do you think it will do to oil?
I think next time I use seafoam I'll throw a video up of exactly how I do it in the intake. And you can also add seafoam to to your fuel to keep those injectors spraying smoothly.
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Old 10-19-2010, 10:57 PM   #11
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Re: low compression

yeah i meant the seafoam i saw that vid bryanbrock put up looks like it would mess with the oil and since i just put engine restorer it might affect that. but if you put it in the intake that would still get in contact with the oil right?
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Old 10-19-2010, 11:08 PM   #12
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Re: low compression

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Originally Posted by tvsr View Post
yeah i meant the seafoam i saw that vid bryanbrock put up looks like it would mess with the oil and since i just put engine restorer it might affect that. but if you put it in the intake that would still get in contact with the oil right?
Nope. It won't touch your oil. It will go through the intake manifold, into the cylinder, and out through the exhaust. It will clean the carbon out of all your cylinders and keeps the valves from sticking and tapping. And there WILL be A LOT of smoke, depending on how much you use.

Just pull the vacuum line on the front your throttle body(it's the one with the little black box connecting to the two hoses) while holding the throttle open a little bit, because it will stall out if you don't. And while holding the throttle open, either pour some seafoam into the line, or let it suck it out of the can. If you feel/hear the engine trying to stall, open the throttle more. Or you can just open it all the way and stuck the hose down into the can or whatever container you have the seafoam in.
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Old 10-19-2010, 11:38 PM   #13
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Re: low compression

it can go through the PCV valve as well im going to try looks nice in a video too
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Old 10-20-2010, 08:32 AM   #14
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Re: low compression

yeah do the gas tank and the the intake, dont add to oil till just befor oil change, just add the engin restor instead. and at next oil change then use the seafoam or gumout. have fun
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Old 10-20-2010, 08:10 PM   #15
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Re: low compression

aight thanx good lookin out
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Old 10-28-2010, 09:22 AM   #16
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Re: low compression

Have your engine checked out. This is a very low compression and I just don't imagine a quick fix in a can will do you any bit of good. That is very low compression. You could have a warped head, bad head gasket.
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Old 12-22-2010, 08:00 AM   #17
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Are you guys seriously recommending mechanic in a can? I an definitely reconsidering being a member of this community. The low cylinder could be a lot of thing s, more than likely a head issue since the wet test did nothing. I would do a leakdown on it, that should give you a better idea of where you are but it sounds like you are going to need to pull the heads at least.
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Old 12-22-2010, 10:00 AM   #18
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Re: low compression

I agree ibleedblue - low compression - very well could mean something is broken - valve etc - I broke stuff in my 2000 gt and compression test numbers were similar to what you got - I had to get new heads , dont mean to be alarmist but I dont think those " additives " will do much .
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