Piston rings - not round? - Suzuki Forums: Suzuki Forum Site
Suzuki Forum Suzuki Forums

» Auto Insurance
» Featured Product
Wheel & Tire Center

Go Back   Suzuki Forums: Suzuki Forum Site > Suzuki Models > Suzuki Jimny, Sierra & Samurai Forum
Register Home Forum Active Topics Photo Gallery Garage Search Today's Posts Mark Forums Read Auto EscrowAuto LoansInsurance Advertise

Suzuki-Forums.com is the premier Suzuki All Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 12-01-2013, 07:22 AM   #1 (permalink)
Azelgin's Avatar
Join Date: Oct 2010
Location: S. E. Arizona
Posts: 264
Gallery: 0
Azelgin is on a distinguished road
Default Piston rings - not round?

I put together a motor last year. G13A Suzuki 1.3. Well, it smoked from day one and never seemed as if it was going to get better. I put 6000 miles on it, with no real change in condition. Oil usage ranged from a quart every 800 to 1200 miles. Smoking was very noticable during decelleration. There was always some oil in the air filter housing, from the breather and the spark plugs were always oiled. Dry compression was about 150, wet was 185. I figured if the rings hadn't seated by now, they were never going to.
I thought either the machine shop did the wrong hone grit, I didn't get the block clean enough, or, the cylinder walls got washed and glazed over. When I pulled the head, I found the cylinder wall hone marks looked the same as the day I put the engine together. They didn't look to be glazed over, either. When I pulled the rings off the pistons, I noticed areas of the compression rings that were dull and black, having never contacted the cylinder walls. Some sections were almost an inch long.
I gave the cylinders a quick hone, put on some Sealed Power piston rings and started it back up. No smoke at all, after 70 miles. Actually, no smoke after 30 seconds.
Anyone ever come across this problem? It really looks like the rings were not round. The cylinders looked the same all the way around the bore: like newly honed cylinders. No areas that were any different in appearance from the rest of the cylinder wall.
Azelgin is offline   Reply With Quote Quick reply to this message
Sponsored Links

  Suzuki Forums: Suzuki Forum Site > Suzuki Models > Suzuki Jimny, Sierra & Samurai Forum

Quick Reply

Register Now

In order to be able to post messages on the Suzuki Forums: Suzuki Forum Site forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 09:52 AM.

Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.