Stuck ring...valve stem seals..smokes? - Third Generation F-Body Message Boards


Go Back   Third Generation F-Body Message Boards > Tech Boards > Tech / General Engine
Search

Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by Weld Racing
Click Here

Stuck ring...valve stem seals..smokes?

Reply
 
Thread Tools Search this Thread
Old 05-21-2009, 10:53 AM   #1
Junior Member
 
Join Date: May 2009
Posts: 10

Classifieds Rating: (0)
Stuck ring...valve stem seals..smokes?

I read alot on here about valve stem problems being very common. I have a 92 rs305tbi and it just started smoking at startup and when you rev it up quickly. The smoke is white......could it be a stuck ring or can valve stem seals smoke at start up and also at acceleration. My local shop told me that this year model had good valve stem rings? I just need some advice.....it runs great...almost as good as new with no overheating problems......is there an economical fix if it is a stuck ring.....HELP?????????????
menglish is offline vBGarage Page   Reply With Quote
Old 05-21-2009, 02:23 PM   #2
Moderator
 
five7kid's Avatar
 
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 42,315
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 10B-3.73/9"-3.89

Classifieds Rating: (14)

Is the smoke white, or bluish?

White is water/coolant. Bluish is oil, and typically when it happens at engine start-up it's valve stem seals.

To the best of my knowledge they didn't change the valve stem seal design during the 3rd gen years.
five7kid is offline vBGarage Page   Reply With Quote
Old 05-21-2009, 02:55 PM   #3
Junior Member
 
Join Date: May 2009
Posts: 10

Classifieds Rating: (0)
Re: Stuck ring...valve stem seals..smokes?

It is white.....I agree with you on the valve stem seals.....there are many post on here about this being a very common problem. Would it smoke when you rev it up if it was seals? Also, is there a check I can do to see if it is a stuck ring. This car runs great and just started this. I put injector cleaner(2 bottles) and that seem to be when it really started? Thanks for any help.......could it be stopped up pcv?
menglish is offline vBGarage Page   Reply With Quote
Old 05-21-2009, 04:19 PM   #4
Moderator
 
five7kid's Avatar
 
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 42,315
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 10B-3.73/9"-3.89

Classifieds Rating: (14)

If it's white, it's coolant, not oil. So it isn't the valve stem seals or the piston rings.

By any chance was the engine overheated?

Valve stem seal smoke is from oil getting down the valve stem. The amount is so small that it typically doesn't cause smoke when the engine is running. After the engine is shut off, oil goes from the top of the engine where it has been pumped down wherever gravity carries it. If the valve stem seals are shot (hard, cracked), oil seeps down the valve stems into the combustion chamber and "pools". When you fire it up the next time, there is enough of a concentration to produce visible smoke.
five7kid is offline vBGarage Page   Reply With Quote


Reply

Go Back   Third Generation F-Body Message Boards > Tech Boards > Tech / General Engine

Tags
2000, 91, camaro, change, engine, free, ls1, piston, rings, seal, smokes, start, stem, stuck, valve
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Car really hard to start after sitting SolarGoldRaptor Carburetors 16 08-25-2015 02:25 PM
Accidently bent closed valve with mallot. Cameeeero Tech / General Engine 14 08-24-2015 09:16 PM
Body trim bbernardo94 Body 0 08-19-2015 05:25 AM
1992 camaro 305 v8 TBI idles very high and shifts at high idles db057 TBI 5 08-16-2015 09:19 PM
Rocker arm falling off Valve Stem 15th ANNI T/A Tech / General Engine 15 08-04-2015 08:38 AM


All times are GMT -5. The time now is 07:08 AM.


All content copyright 1997 - 2014 ThirdGen.org. All rights reserved. No part of this website may be reproduced without the expressed, documented, and written consent of ThirdGen.org's Administrators.

Emails & Contact Details