|
|
Joined: Sep 2004
Posts: 35,293
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Sep 2004
Posts: 35,293 |
^^^Just wanted to add to the intelligence soup^^^
Something clever here.
|
|
|
|
|
Joined: Oct 2004
Posts: 23,369 Likes: 2
Campfire Ranger
|
|
OP
Campfire Ranger
Joined: Oct 2004
Posts: 23,369 Likes: 2 |
So.,...any idea on what burned the valve? Is this a V8? Did it have the aluminum heads?
Never had an engine burn a valve on me. Did it run lean for some reason?
As and aside, we had a '70 Chevelle with the 350/300hp motor. Had to run 93 or better octane so it wouldn't ping. Used to be able to get Ammoco 101 at the pump. That car ran great. Sold it in the late 90's with 178,000 miles. It didn't burn a drop of oil, but dad and I changed it every 2000 miles since he got Rottela 30w for free. I really miss that car.
Clyde I'm not sure. Neighbor tells me his truck has a burned valve. Says he was just going to do the top end, hence the OP.
"The Democrat Party looks like Titanic survivors. Partying and celebrating one moment, and huddled in lifeboats freezing the next". Hatari 2017
"Hokey religions and ancient weapons are no match for a good blaster at your side, kid." Han Solo
|
|
|
|
|
Joined: Oct 2004
Posts: 23,369 Likes: 2
Campfire Ranger
|
|
OP
Campfire Ranger
Joined: Oct 2004
Posts: 23,369 Likes: 2 |
The engine, or some brains around here?  (on other threads, obviously).
"The Democrat Party looks like Titanic survivors. Partying and celebrating one moment, and huddled in lifeboats freezing the next". Hatari 2017
"Hokey religions and ancient weapons are no match for a good blaster at your side, kid." Han Solo
|
|
|
|
|
Joined: May 2016
Posts: 60,527 Likes: 21
Campfire Kahuna
|
|
Campfire Kahuna
Joined: May 2016
Posts: 60,527 Likes: 21 |
^^^Just wanted to add to the intelligence soup^^^ I assume you mean Alphabet Soup. I cant find that any more at the store. Its an essential ingredient in Bear Beans too.
I am MAGA.
|
|
|
|
|
Joined: Dec 2007
Posts: 25,107
Campfire Ranger
|
|
Campfire Ranger
Joined: Dec 2007
Posts: 25,107 |
Why is it that engines are lasting so much longer these days? Anyone know?
Advances in flux metals and designs, 4-D machining, and of course ball bearings. It's all ball bearings now days.
“Life is life and fun is fun, but it's all so quiet when the goldfish die.”
|
|
|
|
|
Joined: Oct 2005
Posts: 2,721
Campfire Regular
|
|
Campfire Regular
Joined: Oct 2005
Posts: 2,721 |
Why is it that engines are lasting so much longer these days? Anyone know?
EFI In a nutshell, this. No more carburetors with their accelerator pumps washing down the cylinders with raw gasoline every time you step on the gas.........
The things that come to those that wait may be the things left by those who got there first.
Unk
|
|
|
|
|
Joined: Jul 2009
Posts: 5,183
Campfire Tracker
|
Campfire Tracker
Joined: Jul 2009
Posts: 5,183 |
"Years ago, that was death to the rings and bearings"
Just another old wives tale. I'd be concerned as to why the valve burned. It may have a defective injector on that cylinder and it's running way too lean.
|
|
|
|
|
Joined: May 2016
Posts: 60,527 Likes: 21
Campfire Kahuna
|
|
Campfire Kahuna
Joined: May 2016
Posts: 60,527 Likes: 21 |
I am not so sure about the EFI argument now.
At least with GM, the TBI was a high pressure carburetor. Those two happy little injectors on top of the engine just pizzed in fuel all day long.
The TPI was not much better.
Not sure of the spider injector on the Vortec, but it probably just injected fuel all the time.
Now, direct injection......at the just the right time is the best.....but I think that is relatively new.
I am MAGA.
|
|
|
|
|
Joined: May 2016
Posts: 60,527 Likes: 21
Campfire Kahuna
|
|
Campfire Kahuna
Joined: May 2016
Posts: 60,527 Likes: 21 |
Why is it that engines are lasting so much longer these days? Anyone know?
Advances in flux metals and designs, 4-D machining, and of course ball bearings. It's all ball bearings now days. Well, the real advancement has come with the development of 30wt ball bearings.
I am MAGA.
|
|
|
|
|
Joined: Jan 2012
Posts: 6,788
Campfire Tracker
|
|
Campfire Tracker
Joined: Jan 2012
Posts: 6,788 |
Better design...yes oil not so much... They removed the zink in oil back in the mid 90 s...for emition reasons...so they had to go roller bearing on all the engine to make them live..the new design with roller bearing valve train is likely why the last longer....
|
|
|
|
|
Joined: Sep 2004
Posts: 35,293
Campfire 'Bwana
|
|
Campfire 'Bwana
Joined: Sep 2004
Posts: 35,293 |
Better design...yes oil not so much... They removed the zink in oil back in the mid 90 s...for emition reasons...so they had to go roller bearing on all the engine to make them live..the new design with roller bearing valve train is likely why the last longer.... i agree with this, although i'm not sure on the order of the events. but rollers came in, zinc went out. in regard to high friction concerns, new oil in general is not "better". not without specifically hunting down the right oil for your particular application.
Something clever here.
|
|
|
|
|
Joined: Feb 2014
Posts: 942
Campfire Regular
|
|
Campfire Regular
Joined: Feb 2014
Posts: 942 |
"Years ago, that was death to the rings and bearings"
Just another old wives tale. I'd be concerned as to why the valve burned. It may have a defective injector on that cylinder and it's running way too lean. I can't say I ever had bearing failure, but I have definitely seen rings showing their age after adding a tight top end. Long before I ever considered fuel injection.
|
|
|
|
|
Joined: Sep 2004
Posts: 35,293
Campfire 'Bwana
|
|
Campfire 'Bwana
Joined: Sep 2004
Posts: 35,293 |
"Years ago, that was death to the rings and bearings"
Just another old wives tale. I'd be concerned as to why the valve burned. It may have a defective injector on that cylinder and it's running way too lean. i agree with this as well.
Something clever here.
|
|
|
|
|
Joined: Jan 2001
Posts: 7,480
Campfire Tracker
|
|
Campfire Tracker
Joined: Jan 2001
Posts: 7,480 |
Sequential port fuel injection and/or direct injection, along with better engine management has helped extend engine life tremendously. Too much fuel, as in carburetors, or even throttle body injection was a recipe for bore wash, or detonation if too lean. Then they went and screwed it all up with extended oil changes, plastic oil pans and valve covers which created condensation and sludge formation. 
To anger a conservative, lie to him. To annoy a liberal, tell him the truth.
Promoted to Turdlike status 03/17/12
|
|
|
|
|
Joined: Oct 2011
Posts: 59,138 Likes: 23
Campfire Kahuna
|
|
Campfire Kahuna
Joined: Oct 2011
Posts: 59,138 Likes: 23 |
Yup do both heads and run it!
Paul
"I'd rather see a sermon than hear a sermon".... D.A.D.
Trump Won!, Sandmann Won!, Rittenhouse Won!, Suck it Liberal Fuuktards.
molɔ̀ːn labé skýla
|
|
|
|
|
Joined: Sep 2012
Posts: 8,736
Campfire Outfitter
|
|
Campfire Outfitter
Joined: Sep 2012
Posts: 8,736 |
I've don it to more than a dozen GM vehicles and two dozen others. It will be just fine.
Sean
|
|
|
|
|
Joined: Dec 2003
Posts: 86,252 Likes: 25
Campfire Oracle
|
|
Campfire Oracle
Joined: Dec 2003
Posts: 86,252 Likes: 25 |
Actually, I think it is because of a lot of different things.
Better sealing materials, closer tolerances, better metallurgy, and what not.
Engines are better balanced.
They can keep tolerances so much tighter and uniform with computers.......never would have been able to dream of the consistency in the olden days.
At least on a mass produced scale. Same reason 3000 mile oil changes are not done anymore. Next you'll tell me I don't need to change valve cover gaskets at 50K anymore either...
If you take the time it takes, it takes less time.
--Pat Parelli
American by birth; Alaskan by choice.
--ironbender
|
|
|
|
|
Joined: Sep 2009
Posts: 42,013 Likes: 5
Campfire 'Bwana
|
|
Campfire 'Bwana
Joined: Sep 2009
Posts: 42,013 Likes: 5 |
It may have a defective injector on that cylinder and it's running way too lean. i agree with this as well. +2 Likely !
Paul.
"Kids who grow up hunting, fishing & trapping, do not mug little old Ladies"
|
|
|
|
|
Joined: Sep 2012
Posts: 8,736
Campfire Outfitter
|
|
Campfire Outfitter
Joined: Sep 2012
Posts: 8,736 |
An LS motor with a "burnt" valve is not all that uncommon.
No matter how people tell you they drive, we all see the same thing in our commutes. High RPM and extended RPM do their toll. Pull both heads, do a valve job and party on.
Sean
|
|
|
|
|
Joined: Sep 2012
Posts: 18,243
Campfire Ranger
|
|
Campfire Ranger
Joined: Sep 2012
Posts: 18,243 |
Actually, I think it is because of a lot of different things.
Better sealing materials, closer tolerances, better metallurgy, and what not.
Engines are better balanced.
They can keep tolerances so much tighter and uniform with computers.......never would have been able to dream of the consistency in the olden days.
At least on a mass produced scale.
Same reason 3000 mile oil changes are not done anymore. Next you'll tell me I don't need to change valve cover gaskets at 50K anymore either... LOL.....saw that coming.
|
|
|
|
|
395 members (21, 160user, 22250rem, 01Foreman400, 257 mag, 2500HD, 33 invisible),
2,254
guests, and
1,053
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
Forums81
Topics1,192,508
Posts18,490,691
Members73,972
| |
Most Online11,491
Jul 7th, 2023
|
|
|
|
