Resolved Problems with cylinder 1

[rtincher22085]

ok I have injector fire. compression and spark in cylinder 1 but it wont fire. its leaking oil out the exhaust side bad valve seal? cracked ring? head gasket and when I went to crank it over with the hood open it shot the dip stick out about 5 feet i am getting pressure down below and oil leaking out the exhaust HG? HELP please I made a 20 psi pull when this happened first time it has ever done this

I don't know if this is the right place to be asking this but I have a delema. I made a pull today and my car started to lope I pulled at 20 psi my signature says whats done to my dsm. I have spark, I have fuel , I have compressionbut no fire the piston is moving the plug out there is compression. heres the weird part oil is coming out the exhaust port.Can the HG be the culprit? what test should I do to confirm HG or Ring? thaks any help in the right direction would be the greatest.

 

[rtincher22085]

Cylinder 1 messed up it has spark fuel and the piston goes up and down i pulled the spark plug and it has compression when I fired it up. its leaking oil out the exhaust port cylinder 1 rings? or head gasket? or valve seals? sounds like a rod but it would still run that cylinder correct?

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[khartley]

If your oil dipstick popped out and shot that much oil everywhere, is it possible that you ran it basically dry long enough to get a spun bearing? Are you certain you have a leak there, that there is not just alot of oil there because the dipstick is right beside it? You should definitely clean your engine... where is the noise coming from? Hard to tell from the video.

How much boost are you running? Stock motor?

 

[Talontd-2G]

Compression test it. But I'd be thinking piston ring

 

[habitatguy187]

First you need to do a compression test and go from there. Get the engine to operating temp then do a "dry" compression test, write the numbers down, and then do a "wet" test. Post back with results.

 

[khartley]

If your car isn't tuned well and you are running very lean at WOT, I would say you melted a piston. I've done it before, the car sounded and ran like a lawnmower. Definitely do a real compression test and post the results.

 

[MichaelSuch]

30 psi on a 16g with 560s and no tuning? You ran wayyyyy lean and most likely melted something. Do a compression test. If it fails then you need to pull stuff apart and do a rebuild.

 

[Kev_tsi]

I blew a head gasket once had oil all over when i tried to start the car it would pop the dipstick out, when I took the head off I found the piston melted.

 

[rtincher22085]

30 psi on a 16g with 560s and no tuning? You ran wayyyyy lean and most likely melted something. Do a compression test. If it fails then you need to pull stuff apart and do a rebuild.

It was 20 psi and I have an afc set at +3 % its a single knob. Thats probably the problem. why it leaned out.

I am in the process of tearing it down. I will be doing a compression check to confirm before i take the head off of course. I feel like a dumb ass. i knew my pcv valve wasn't working correctly and I floored it and it spiked past 25. my turbo is good still and the oil is deff coming from the inside of the head where the valvse are I will post pics as i go along.

 

[rtincher22085]

If your oil dipstick popped out and shot that much oil everywhere, is it possible that you ran it basically dry long enough to get a spun bearing? Are you certain you have a leak there, that there is not just alot of oil there because the dipstick is right beside it? You should definitely clean your engine... where is the noise coming from? Hard to tell from the video.

How much boost are you running? Stock motor?

cylinder one is where the noise is comming from it isn't firing so i am assuming its dead or the rings blew out or i melted it.

I blew a head gasket once had oil all over when i tried to start the car it would pop the dipstick out, when I took the head off I found the piston melted.

I'm in the process of tearing it down i can only work like 1-2 hours at a time so far ive got alot of it done. T belt is next to come off then the intake then the head. so i will find out. of course i will be doing a compression check to verify before I remove the head. I will take pics and post the results to show what not to do to your engine . TUNING is important my BAD

If your car isn't tuned well and you are running very lean at WOT, I would say you melted a piston. I've done it before, the car sounded and ran like a lawnmower. Definitely do a real compression test and post the results.

0 compression on #1, 149 on #2, on 151#3, and 149 on#4

 

[viprez586]

Please use better spelling and grammar as it helps us out a ton on helping you.

First of all you've got to fix the misfire. Go standard NGK coppers gapped at .028"
Do a boost leak test.
Turn down the boost or do not boost to 20psi on a stock fuel pump.
Do a compression test and/or cylinder leak down test.
Completely fill out your mod list.

All the things mentioned can be researched through the search function, especially misfires.

 

[JacksonAuto]

Before you take anything apart do a compression AND a leakdown test. This will help you diagnose the problem before it's taken apart. If you pull it down and there is no obvious problem you will be left scratching your head unless you do a leakdown.

 

[XiKeiyaZI]

First off on a stock fuel system you shouldn't run over 16PSI max. You should certainly do a boost leak test and compression test just to make sure that the numbers check out. Change your spark plugs to the above mentioned brand and the gap.

One thing you should do is check your PCV valves. If you're firing your dipstick out that means that you are building up excessive pressure in your crankcase. Please do a search for PCV systems and read closely to what is posted.

 

[rtincher22085]

Before you take anything apart do a compression AND a leakdown test. This will help you diagnose the problem before it's taken apart. If you pull it down and there is no obvious problem you will be left scratching your head unless you do a leakdown.

I did the compression test it was 0 on #1 I checked the other cylinders and they were healthy 150ish so I have to tear into it to see it for my self. I will post PICS of my findings. regaurdless oil out the exhaust with no fire is rings or F'ed up piston.

 

[JacksonAuto]

A compression test will tell you that there is a problem. A leakdown will tell you what the problem is. In your post you asked what tests you could do.

Oil in the chambers could come from many sources, but that coupled with zero compression narrows it down to the piston or rings (assuming there is only one problem). However, there is also the possibility that other things are damaged such as bent valves, cracked guides, bad HG, and a leakdown test would tell you.

 

[MichaelSuch]

Ah sorry I'm an idiot and thought it was 30 psi. Definitely post pictures, I bet the piston is melted though.

 

[rtincher22085]

First off on a stock fuel system you shouldn't run over 16PSI max. You should certainly do a boost leak test and compression test just to make sure that the numbers check out. Change your spark plugs to the above mentioned brand and the gap.

One thing you should do is check your PCV valves. If you're firing your dipstick out that means that you are building up excessive pressure in your crankcase. Please do a search for PCV systems and read closely to what is posted.

I don't have a stock system sorry if i didn't mention that i have a walboro 255 and 560 injectors and an AFC. stock mas and haven't rewired yet. i have no compression in that cylinder and oil is coming out of the exhaust port. On cylinder 1

 

[4g63monstr]

I am no expert by any means, but this sounds like a valve issue, possibly a valve stem seal? or many? Either way, I will be checking back on this thread to see the consensus of everyone else. Thats my .02

 

[SteGerHPI]

Do a wet compression test so you know if it's in the valves or the rings.

 

[1badpurple]

No compression? If that's the case its definitely time for a rebuild. You probably burnt a hole through the piston.

 

[khartley]

Well that pretty much confirms the melted piston theory.

 

[rtincher22085]

I BROKE. A piece of my piston

Heres what I FOUND!
YouTube - Chunk of piston missing 6 bolt dsm

 

[rtincher22085]

Here's what I FOUND!

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[XiKeiyaZI]

Wooow.

Well...Uhm..I'm sorry. >.<

 

[1badpurple]

I think I called that one.