Topic: Cleaning cylinder bores (Read 5863 times)

SiFlyBy · « **on:** October 11, 2009, 10:28:39 PM »

Long story short here. I have a turbo mazda 626. Afew months ago the rings started to go and it was blowing oil all over the place, I said fuck it, hooked up abottle of nitrous, 150 shot and ran it up and down the street until it let go. Now my dumbfuck ass needs the block to rebuild it. I got ahold of a bore guage and bores are in spec and would probably be ok with a good hone job except one where the is some piston melted to the cylinder wall.

So, what is the best way to remove that shit from the cylinder walls? Im taking it to the machine shop tomorrow anyway, but I REALLY dont want to have to buy new pistons and I have a feeling that they are trying to fuck with me because they said the other block that I took in has .020" wear in the cylinders and would need to be bored at least .030" over.

's

Cliff notes: How do you remove melted piston from a cylinder wall?

BoostedSchemes · « **Reply #1 on:** October 11, 2009, 10:37:29 PM »

i used some hard ass plastic to chisle it off and wood too
add crosshatch with brillo pad as necessary and await 220psi of compression

SiFlyBy · « **Reply #2 on:** October 11, 2009, 10:41:44 PM »

I tried muriatic acid, but that didnt work too well. There are some vertical scratches so I may just let the mach shop do that shit.

Hey compl3x, you want that fucking turbo? Just pay for shipping

:yes:

Conceptz-X · « **Reply #3 on:** October 11, 2009, 10:48:07 PM »

Quote from: SiFlyBy on October 11, 2009, 10:41:44 PM

muriatic acid

That was going to be my suggestion

Phate · « **Reply #4 on:** October 12, 2009, 01:53:57 AM »

Quote from: SiFlyBy on October 11, 2009, 10:28:39 PM

I said fuck it, hooked up abottle of nitrous, 150 shot and ran it up and down the street until it let go

Was it at least fast?

patsmx5 · « **Reply #5 on:** October 12, 2009, 02:08:52 AM »

Use a utility blade and scrape it off. Hold the blade with vise grips

SiFlyBy · « **Reply #6 on:** October 12, 2009, 08:11:13 AM »

Quote from: Phate on October 12, 2009, 01:53:57 AM

Quote from: SiFlyBy on October 11, 2009, 10:28:39 PM
I said fuck it, hooked up abottle of nitrous, 150 shot and ran it up and down the street until it let go

Was it at least fast?

Yeah it was fast. 18-20psi and the 150 shot. Obiously I ran out of fuel though

Robb · « **Reply #7 on:** October 12, 2009, 08:41:55 AM »

Quote from: SiFlyBy on October 11, 2009, 10:28:39 PM

Long story short here. I have a turbo mazda 626. Afew months ago the rings started to go and it was blowing oil all over the place, I said fuck it, hooked up abottle of nitrous, 150 shot and ran it up and down the street until it let go. Now my dumbfuck ass needs the block to rebuild it. I got ahold of a bore guage and bores are in spec and would probably be ok with a good hone job except one where the is some piston melted to the cylinder wall.

So, what is the best way to remove that shit from the cylinder walls? Im taking it to the machine shop tomorrow anyway, but I REALLY dont want to have to buy new pistons and I have a feeling that they are trying to fuck with me because they said the other block that I took in has .020" wear in the cylinders and would need to be bored at least .030" over. 's

Cliff notes: How do you remove melted piston from a cylinder wall?

Dude, if you have melted piston in the walls, chances are you are gonna need to bore it over, regardless. Keep in mind, if you can catch a scratch with your finger nail, you gotta at least hone.

Machine work really cant be shortcut. It wont last if you half ass it. Honestly, had you just parked it when it started smoking, you probably could have gotten away with just a re-ring/hone. Now your gonna dump more $$$ into the engine than that car is probably worth.

Hindsight is 20/20 aint it?

Joseph Davis · « **Reply #8 on:** October 12, 2009, 09:29:21 AM »

Quote from: SiFlyBy on October 11, 2009, 10:28:39 PM

So, what is the best way to remove that shit from the cylinder walls?

Honing.

Quote from: Robb on October 12, 2009, 08:41:55 AM

Hindsight is 20/20 aint it?

Foresight on that particular car is even better. It's a somewhat rare, somewhat cool old car. That you can't find parts for anymore because fucktards keep blowing them up like they are throw-away.

SiFlyBy · « **Reply #9 on:** October 12, 2009, 01:16:43 PM »

yeah hindsight is 20/20 and its also a bitch. I though the other block that I had was in good shape, but it need .030" over pistons. Im trying to get away with factory pistons. Trust me though, if the shit doesnt look good after its clean and my piston to wall clearances are not in spec, then Im just going to use the other block and fork over the cash for .030" over pistons.

And JD, yes I am a douche for not having alittle foresight. Probably lost it with the foreskin 26 years ago.

Joseph Davis · « **Reply #10 on:** October 12, 2009, 01:53:16 PM »

We have become bitter and wise after years of fucking things up like an idiot. I expect you'll be fine in another decade, and balder and fatter for your trouble.

SiFlyBy · « **Reply #11 on:** October 12, 2009, 04:14:06 PM »

Indeed I am much wiser than I was 10 years ago and well on my way to being bald. I hope never to be fat though. I also plan on fucking alot of shit up before still before I die. Right now I wish I wouldnt have blown up the engine withg the nitrous, but goddamn was that fun. Im still on the fence as to whether it was worth it or not.

92CXyD · « **Reply #12 on:** October 12, 2009, 04:24:53 PM »

If your not breaking parts then your not making power. ;D :yes:

Joseph Davis · « **Reply #13 on:** October 12, 2009, 04:42:12 PM »

92CXyD is a thirty-something teenager.

Hide your daughters.

92CXyD · « **Reply #14 on:** October 12, 2009, 04:51:54 PM »

Quote from: Joseph Davis on October 12, 2009, 04:42:12 PM

92CXyD is a thirty-something teenager.

Hide your daughters.

LOL

hatchbox90 · « **Reply #15 on:** October 13, 2009, 05:35:15 PM »

Quote from: SiFlyBy on October 11, 2009, 10:28:39 PM

Long story short here. I have a turbo mazda 626. Afew months ago the rings started to go and it was blowing oil all over the place, I said fuck it, hooked up abottle of nitrous, 150 shot and ran it up and down the street until it let go. Now my dumbfuck ass needs the block to rebuild it. I got ahold of a bore guage and bores are in spec and would probably be ok with a good hone job except one where the is some piston melted to the cylinder wall.

So, what is the best way to remove that shit from the cylinder walls? Im taking it to the machine shop tomorrow anyway, but I REALLY dont want to have to buy new pistons and I have a feeling that they are trying to fuck with me because they said the other block that I took in has .020" wear in the cylinders and would need to be bored at least .030" over. 's

Cliff notes: How do you remove melted piston from a cylinder wall?

Go ask ohmt nigger. no back and forth shit or playing halfs. you decided to stay on that site. Go ask Rick p for assistance

nigger

SiFlyBy · « **Reply #16 on:** October 13, 2009, 08:09:37 PM »

To know where I am is to be there also

nigger

Robb · « **Reply #17 on:** October 13, 2009, 08:14:09 PM »

Lol my IP is perma-banned from there.

Ricky P is fucking scared of Joseph Davis lol.

Teg2boo · « **Reply #18 on:** October 13, 2009, 10:47:55 PM »

Its funny:

OHMT: Currently Active Users: 39 (4 members and 35 guests)
RHMT: 6 Guests, 35 Users (1 Hidden)

Complete opposite.

Robb · « **Reply #19 on:** October 13, 2009, 11:02:49 PM »

Quote from: Teg2boo on October 13, 2009, 10:47:55 PM

Its funny:

OHMT: Currently Active Users: 39 (4 members and 35 guests)
RHMT: 6 Guests, 35 Users (1 Hidden)

Complete opposite.

The 35 guests are from RHMT, who were checking to see if they were still IP banned there, LOL.

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Author Topic: Cleaning cylinder bores (Read 5863 times)