i'm having some trouble with my car. about a month and a half ago when i checked my oil, none was showing on the dip stick. so i just went ahead and decided it was a good time to change the oil. when i had the car lifted i saw fresh oil from under the intake manifold area but couldn't pin point where exactly it was coming from. so this past week after replacing two motor mounts and valve gasket i did a compression test. my numbers were 95, 215, 210, 225. it seems it's the HG. today i had to add another quart of oil. how quickly should i get this fix? i rather wait untill i have enough money to rebuild the bottom-end and hrc kit to do it all at once. and if i'm rebuilding the top-end as well, is it better to do it all at once?

95 is horrible...

Horrible... that sounds like a cracked ring land. That's your number 1 piston (passenger side most)? I would take some brake cleaner to the back of your head and clean things up, that oil on the back may not be your head gasket and could have been the valve cover gasket you fixed, and target where it's coming from. What year is your car?

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

Do a leak down test and see if the number rises, if it does it's your rings/ring lands, if it doesn't it's probably a valve seal.

99's have MLS head gaskets, it's unheard of of a blown MLS head gasket on a 2gnt.

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

i also had my SES light come on 2 days ago and this light keeps coming on and off for sometime now. every time i get it checked it reads PO301 miss fire in cyclinder 1. could did have anything to do with the compression number reading low?

Compression that low would cause misfire. Do a leakdown test so we can determine what the problem is.

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

i'm not sure what a leakdown test is? i remember reading it somewhere but can't remember. isn't that something that has to be done by a mechanic?

It's simply putting a cap full of oil into the cylinder through the spark plug hole then testing the compression again. If it goes up, your rings are bad, if it doesn't your valve seals are bad. I highley doubt it's your head gasket.

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

cool, i'll get back to you as soon i can get that done. thanxs for all your help so far.

today i did another compression test and added oil as you said to do and my number went from 95 up to 110 almost reaching 115. so where does this leave me? and how quickly should i fix this?

Your warming the car up before you do the compression test right?

It sounds like you have a bad valve seat/seal, it could be the head gasket, the compression didn't go up that much w/ the leakdown test.

Has someone serviced your head before (lol)?

What year is your car?

Has your timming belt skipped before?

Using nitrous?

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

^, with that being said since the problem is not obvious, I would have a leakdown test performed, by a shop, unless you know somebody w/ an air compressor.

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

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'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

Opps, duh, ignore me calling that a leakdown, I've just heard it called that soo many times.

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

to answer your questions.
1.I am warming up the car, i drove it for about 20min or so before the test. is there a certain amount your suppose to put of oil because i only put half a cap from a gallon of oil(not quart).
2.I'm second owner of the car and the head was never service since i had it and that's been for a year and a half.
3.my car is a 1999.
4.i don't know if my timming belt skipped before. what would be the syptoms? i'm going on 55000 miles.
5.i only have CAI, ES inserts, AFX udp, and obx exhaust... so no nitrous.

sorry for the double post

Well, to put simply, 95psi compression is bad. The head needs to come off so you can determine exactly what is broken, be it a valve or a probelm with the piston itself.

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

Your gonna have to pull the head regardless.

Can you tell where on the back the oil is coming from?

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

no it's everywhere when i look from under.