Weird question??
03-04-2007, 02:15 AM
#1
Senior Member
Thread Starter
Join Date: Dec 2006
Location: Melbourne, AUSTRALIA
Posts: 1,337
Likes: 0
Received 0 Likes
on
0 Posts
Weird question??
My friend today made me just as curious as him,that when and engine seizes does it just stop working???And if i ran my engine lean for a few tanks would it seiz within a few tanks??
03-04-2007, 05:46 AM
#2
Senior Member
Join Date: Jan 2007
Location: , AFGHANISTAN
Posts: 523
Likes: 0
Received 0 Likes
on
0 Posts
RE: Weird question??
When it seizes while you're trying to start it, it flooded. If it seizes after sitting for a long time, it's corroded.
Running at 300 degrees for a few tanks isn't good.
Running at 300 degrees for a few tanks isn't good.
03-04-2007, 09:40 AM
#3
Senior Member
Join Date: Jan 2005
Location: Stockbridge,
GA
Posts: 8,275
Likes: 0
Received 0 Likes
on
0 Posts
RE: Weird question??
There are lots of ways an engine can "sieze" up. There is hydro locking which stops the engine from turning but isn't reall seizing. There is seizing from corosion.
There is also seizure from overheating the engine which is from running too lean. In that kind of seizure one of a few things can happen. The piston/sleeve clearance becomes too tight and the piston cannot move up and down or some other moving part (conrod, crankshaft, bearings, etc) becomes so hot that they actually weld themselves togeather. Then there's the situaton whee a part is stressed so badly that it comes apart and parts wedge into somewhere and stop the engine.
In all cases the engine will stop instantly. It does not take a lot of outside force to stop one of these engines. Take a stick and push it against a moving flywheel and you'll see how little it really takes.
As to running lean and the damage it can cause; If you are really badly lean then yes it can cause it to seize when the engine was really hot. But if it's just been run a little lean for a few tanks and then corrected (or even not) the engine is not likely to seize up. It is much more likely that you will start to lose compression from loss of pinch and then you will start to have tuning problems and problems with the engine dieing after it reaches operating temps.
There is also seizure from overheating the engine which is from running too lean. In that kind of seizure one of a few things can happen. The piston/sleeve clearance becomes too tight and the piston cannot move up and down or some other moving part (conrod, crankshaft, bearings, etc) becomes so hot that they actually weld themselves togeather. Then there's the situaton whee a part is stressed so badly that it comes apart and parts wedge into somewhere and stop the engine.
In all cases the engine will stop instantly. It does not take a lot of outside force to stop one of these engines. Take a stick and push it against a moving flywheel and you'll see how little it really takes.
As to running lean and the damage it can cause; If you are really badly lean then yes it can cause it to seize when the engine was really hot. But if it's just been run a little lean for a few tanks and then corrected (or even not) the engine is not likely to seize up. It is much more likely that you will start to lose compression from loss of pinch and then you will start to have tuning problems and problems with the engine dieing after it reaches operating temps.
03-05-2007, 01:37 AM
#4
Senior Member
Thread Starter
Join Date: Dec 2006
Location: Melbourne, AUSTRALIA
Posts: 1,337
Likes: 0
Received 0 Likes
on
0 Posts
RE: Weird question??
Ok,so sometimes people say this:E;G The 3.3 engine will last about 6 GALLONS.After it finsishes lasting 6 gallons what happens to it.What wears out/melts? Thanks.
03-05-2007, 03:16 PM
#6
Senior Member
Join Date: Mar 2006
Location: ,,
LA
Posts: 2,223
Likes: 0
Received 0 Likes
on
0 Posts
RE: Weird question??
Some people get 12 gallons on there 3.3,i have 5 right now and it's still stronge as the day i got it,so just depend's on how you treat the engine.
