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Old 03-13-2013, 10:34 PM   #1
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Default My motor = loose butthole

I had some issues this weekend with smoke and oil in the engine bay, finally got to look at it tonight and I'm pretty sure my engine is done. Did a compression test and this is what I got:
Cylinder 1: 70 psi
Cylinder 2: 150
Cylinder 3: 145
Cylinder 4: 135

When I pulled the plug in cylinder 4 it was completely covered with oil as well, pictures of my plugs attached in order (or not because of iPad, will upload spark plug from #4 right now)

This is where I need some advice to get me back to tight butthole. The car is a project car I bought for autocross, I enjoy driving it to work when it's nice and on the weekends. The goal with it this year was to drive to autox events within a 150 mile radius of my home. My plan was for a 200-225whp car that was reliable and fun to drive. So my question is where should I go from here? I've purchased good parts when it matters and used parts when they will do. Budget would probably be around $1500 and I am comfortable doing all work myself (besides what needs to be done by a machine shop). So I look for your opinions and advice
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Old 03-13-2013, 10:35 PM   #2
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#1 plug
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Old 03-13-2013, 10:36 PM   #3
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#2
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Old 03-13-2013, 10:37 PM   #4
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#3
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Old 03-13-2013, 10:38 PM   #5
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#4 again
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Old 03-13-2013, 10:51 PM   #6
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Probably broke/melted a ringland

Pull the head off
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Old 03-13-2013, 11:04 PM   #7
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Oil on plug 4 is from a leaky vcg, the issue is #1.

Do the teaspoon of oil test and you'll get a better idea of whether it's rings or valves.

GO! And report back yer findings!

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Old 03-13-2013, 11:24 PM   #8
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ST 8.5:1 pistons, Eagle rods, valve job, try again.
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Old 03-14-2013, 06:53 AM   #9
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Agree with flounder, do a wet compression test first. Does not sound like a healthy engine though!
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Old 03-14-2013, 10:46 AM   #10
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lolol what's the point in any more tests? I mean its clear as day that motor is done.

don't waste time and start rebuilding
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Old 03-14-2013, 11:20 AM   #11
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If you want to trust it to get you home 150 miles after beating the **** out of it during the day, and you have $1500 budgeted for your engine, then there shouldn't be much of a question. Just look through the build threads of the guys who built their motors and run them at the track. That will tell you what you need and what you don't.
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Old 03-14-2013, 04:32 PM   #12
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So thinking about this more, rebuild my 1.6 or buy a used 1.8 and put that in instead?
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Old 03-14-2013, 04:34 PM   #13
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1.6 vs 1.8?


WELL THERE'S A TOUGH CHOICE
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Old 03-14-2013, 04:36 PM   #14
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Well if i go with the 1.8 I would have to wait longer to turbo, would be running just n/a for awhile, or rebuild 1.6 and run turbo and have a fresh motor
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Old 03-14-2013, 04:46 PM   #15
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worth the wait.
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Old 03-14-2013, 04:50 PM   #16
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Nothing you say will ever make the 1.Fail be a better option to the 1.8
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Old 03-14-2013, 04:51 PM   #17
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That was my orignal thought, replace it now with a 1.8, just the fact of having a refreshed 1.6 over a used high milage 1.8 seems like a better option reliablity wise
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Old 03-14-2013, 06:19 PM   #18
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Quote:
Originally Posted by tplociniak View Post
That was my orignal thought, replace it now with a 1.8, just the fact of having a refreshed 1.6 over a used high milage 1.8 seems like a better option reliablity wise
Save your Obamabucks and do it right.
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Old 03-14-2013, 07:28 PM   #19
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Quote:
Originally Posted by hustler View Post
Save your Obamabucks and do it right.
I'm pretty sure Obama just takes my money since I have a decent job

Does doing it right mean rebuild 1.8?
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Old 03-14-2013, 07:34 PM   #20
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Yes. Any less displacement is doing it wrong
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