a couple pistons had some scoreing like this. this is probably the worst of all.



more scoreing



im told the brown discoloration is from blow-by. true?



well this is weird! this is the only damage i could find. a small crack that looks like it has been there for a long time becasue there is a heavy worn spot just to the left of the crack. its very obvious when looking at it. sorry for the shitty pic, i have a shitty camera.



more scoreing.


i was told my oil rings were toast and that they were not making a tight contact with the cylinder wall.

okay any ideas now?

USED TO HAVE...Everything you wish you had, and then some...

You are somebody special Tim, you matter! - from the admins (but nobody likes you, because your username is just like that other guy's, and you whine a lot)

Normal. All normal.

Take the rings off already. Catch the pieces that fall off.

______________________________
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/

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

My (JE) piston skirts looked like that when I took them out... I think at least the sideskirt wear is normal piston slap.

Not so sure about the crack and the brown skirts... My JE skirts were still perfectly shiny after 10k miles.

Okay, all rings off!! no falling parts, chunks or anything!!! what the hell gives?

USED TO HAVE...Everything you wish you had, and then some...

You are somebody special Tim, you matter! - from the admins (but nobody likes you, because your username is just like that other guy's, and you whine a lot)

That ware on the sides is where the piston applies the most force when moving up and down. That is why after a long time your piston bore or sleeves will look like an oval. Nothing looks bad to me Just a little ware on the piston skirts.

myspace.com/coastiecobb

If you can, get some really up close pics of the piston that was low on compression. Try to focus on the ring lands of the piston. If its cracked at all, I can tell. Maybe take a screwdriver or other tool to run along the ring grove and see if any pieces of metal fall out..

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

That doesn't look normal to me. As many high mileage engines I've built most of them didn't have scoaring that bad. Then again I haven't built a 420a yet, so maybe its normal for it?






I got the sonic if you got the boom.

Looks a little excessive to me, especially with the cracking. Seem like too much piston slap, piston to bore clearance a little too much.

Could you hear her slapping?



http://www.exileracing.com
una salus victus
Mods List: http://highlander.dsmpower.com/sig.htm

i wouldn't really know what it sounded like to know.

USED TO HAVE...Everything you wish you had, and then some...

You are somebody special Tim, you matter! - from the admins (but nobody likes you, because your username is just like that other guy's, and you whine a lot)

Piston slap sounds like a Volvo or old Diesel truck... in the morning especially.

Here's a pic of my destroyed JE:


Note the wear and slight scratches from the pieces of ring and block that were floating around. More importantly, note there is ZERO blowby past the second ring (brown areas) and the skirts are clean (there is oil on them in the pics, but when wiped, they were bright silver). There were about 5k miles on this piston.

^^^ That piston came out of this cylinder vvv


I think that your problems were caused from blowby. Either your bore was off, the pistons were the wrong size, or the rings weren't working. Use a caliper and see if your pistons are .020 over? How about the bore? It should be 3.464 I think.

Howell accidentally sent me standard size rings with a .020 overbore rebuild kit. (Yes, I returned them and got the right rings before I assembled the engine.) I was all confused because my ring gaps were HUGE. If you have the old rings, put a couple of them in your cylinders and measure the gap with a feeler gauge.

omg^^ brinneling much

myspace.com/coastiecobb

other than that diesel sound, would there be any other indications? (i have a noise that sounds kinda like a diesel and i'm gettin kinda scared now. i'm a car hypochondriac)

sucker MC

first, calm down. second, look around for any nearby diesel pickups.

Having Problems? Heres my Three step solution to anything 2gnt related.
Step 1: Put down everything in your hands.
Step 2: Grab a lucky strike, Smoke it.
Step 3: Walk to the fridge, double fist some keystone ice, sit down in the shade, drink one beer, finish cigarette, drink other beer, roll a joint, smoke it, walk back to your problem, and in about 5 minutes the solution will come to you.
If not. Go here: here

If still nothing, your trying to hard. Start over at step 1.

On my last broken one you couldn't even see the crack. I pried on it a bit with a flat screwdriver and it just fell off.

Kevin
The old:


The new:

my cylinder walls look emaculate, i can see nothing that looks out of place.
ill see if i can pry a bit more. i was told the rings (oil especialy) were a bit lax in their tension and didnt stick out as far as they are supposed to.

these are the factory parts too

USED TO HAVE...Everything you wish you had, and then some...

You are somebody special Tim, you matter! - from the admins (but nobody likes you, because your username is just like that other guy's, and you whine a lot)

______________________________
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/

well, i was checking it out today because i was under the hood (my power cable for my amp became disconnected) and it turns out that the dieseling sound is coming from the piston #4 area but my ears aren't that good anymore so it might be coming from a little further down towards the transmission.

sucker MC

are you saying those are stock internals that he posted all the pics of?

yes those are stock pistons and rods.

USED TO HAVE...Everything you wish you had, and then some...

You are somebody special Tim, you matter! - from the admins (but nobody likes you, because your username is just like that other guy's, and you whine a lot)