|
rscott posted:It's pretty amazing that it didn't melt a piston from the lean condition before the exhaust manifold caught everything on fire. Ford should use that as a testament to how durable the zetec engine is. I am honestly so surprised by how solid the zetec is, it does not seem like something that could have been crafted by one of the big three.
|
#
?
Dec 16, 2013 21:51
|
|
|
|
| # ? Apr 28, 2024 01:08 |
|
|
rscott posted:It's pretty amazing that it didn't melt a piston from the lean condition before the exhaust manifold caught everything on fire. Ford should use that as a testament to how durable the zetec engine is. Dude shoulda watched for the DANGER TO MANIFOLD warning.
|
|
#
?
Dec 16, 2013 21:52
|
|
|
I just can't wrap my head around that. Why would you peg the car at the rev limiter for fifteen minutes? What did this guy expect to happen doing that? 
|
|
#
?
Dec 17, 2013 01:31
|
|
|
rscott posted:It's pretty amazing that it didn't melt a piston from the lean condition before the exhaust manifold caught everything on fire. Ford should use that as a testament to how durable the zetec engine is. The Zetec is so crazy that if you overheat it, it is designed to become a two cylinder air cooled engine: quote:If your Focus has the 2.0L Zetec engine, your have what is referred to as "fail-safe cooling". This is a handy system, should for some reason your engine's coolant supply become depleted, the fail-safe cooling allows the vehicle to be driven temporarily before any incremental component damage occurs. The fail-safe traveling distance depends on ambient temperatures, vehicle load, and terrain. Tough little bastard.
|
|
#
?
Dec 17, 2013 01:52
|
|
|
Seat Safety Switch posted:The Zetec is so crazy that if you overheat it, it is designed to become a two cylinder air cooled engine: Got a link?
|
|
#
?
Dec 17, 2013 03:00
|
|
|
Seat Safety Switch posted:The Zetec is so crazy that if you overheat it, it is designed to become a two cylinder air cooled engine: The modular motors would do the same thing, except obviously becoming a four cylinder. This thread seems to indicate it was only on the "Triton" badged truck motors though and not in the Mustang, T-Bird, or Crown Vic. The dealer made a big point of it when my dad bought a '98 Expedition back then.
|
|
#
?
Dec 17, 2013 03:13
|
|
|
AFAIK the newer LSx engines do this as well.
|
|
#
?
Dec 17, 2013 03:31
|
|
|
The 3.5L Duratec V6 in my parent's '09 Ford Edge also has the fail safe engine cooling system.
|
|
#
?
Dec 17, 2013 03:31
|
|
|
CommieGIR posted:Got a link? It's in the manual for the car, but it doesn't go into a lot of detail. There's a good (for a Focaljet level of "good") post on it here: http://forums.focaljet.com/mk-i-tech/386474-fail-safe-cooling-system-mode.html quote:The cooling system is fitted with a fail-safe mode, this comes into operation in stages when the temperature of the engine is too high: Apparently it carried through to the Focus ST: quote:Fail-Safe Cooling Strategy Link: http://www.focusst.org/forum/focus-st-discussions/7791-great-car-overheating-2.html Seat Safety Switch fucked around with this message at 04:03 on Dec 17, 2013 |
|
#
?
Dec 17, 2013 04:01
|
|
|
No big deal, VW figured out air cooling four cylinders back in the 1930's. 
|
|
#
?
Dec 17, 2013 05:30
|
|
|
wolrah posted:The modular motors would do the same thing, except obviously becoming a four cylinder. This thread seems to indicate it was only on the "Triton" badged truck motors though and not in the Mustang, T-Bird, or Crown Vic. The dealer made a big point of it when my dad bought a '98 Expedition back then. The northstars did this too. Which was useful as the HGs fail.
|
|
#
?
Dec 17, 2013 05:31
|
|
|
Hell, my motorcycle will alternate between cylinders if it starts to overheat.
|
|
#
?
Dec 17, 2013 05:37
|
|
|
Safety Dance posted:Hell, my motorcycle will alternate between cylinders if it starts to overheat. So basically Ford sold a failure as a failsafe.
|
|
#
?
Dec 17, 2013 05:53
|
|
|
Not long after the first series of snowfalls, the "curb jobs" begin to appear. This one allegedly lost it going downhill and sideswiped a utility pole before plowing into a curb hidden beneath a snow bank:   It was hard to get a clear picture of the bent tie rods and lower control arm with all the snow and ice packed into the wheel well and surrounding suspension. Can't wait to see what other damage I find once it finally thaws out!
|
|
#
?
Dec 17, 2013 07:38
|
|
|
That ancient, crappy, plastic Buick was junk long before it hit the pole. Hell, it was garbage when it was new. Scrap that fucker.
|
|
#
?
Dec 17, 2013 07:54
|
|
|
Seriously is that really not worth totaling?
|
|
#
?
Dec 17, 2013 08:07
|
|
|
Chinatown posted:Seriously is that really not worth totaling? Maybe you haven't been poor before, but sometimes a vehicle would be "totaled" ("totaled" equaling about 70% of the market value of the vehicle in many locations) by having to replace a serpentine belt, but has much more value in simply being owned and relatively driveable. There are many cases where I have had a car that needed $500 in repairs that valued double what the car was worth, but after said $500 I would know everything else that was wrong with the car because I had fixed it myself, and I wouldn't have to troll craigslist for a car with unknown problems. I don't know about that Buick (structural soundness is in deep question there), but if it could be repaired for less than the cost of a new used car, and cosmetics don't count as long as the lights are fixed satisfactorily, it may still have a purpose in this world. I mean, it's a total piece of poo poo, obviously, but we can't know everybody's situation. Also I thought your statement was pretty wide-reaching and was used in a general sense, so I'm replying in kind.
|
|
#
?
Dec 17, 2013 08:49
|
|
|
Seat Safety Switch posted:The Zetec is so crazy that if you overheat it, it is designed to become a two cylinder air cooled engine: That is some pretty drat inspired engineering. Everything else I own (computers, domestic goods, etc) would just shut down at a predefined temperature. I was thinking, if you got that car hot enough to cause flames to appear, is it still savable (assuming no internal engine damage)? If you have that many bits glowing orange can you stop it from burning down without damaging it in the process? i.e. CO2 won't stop it. Water will destroy the exhaust, the manifold and the block? Would powder stop it flaming up long enough to let it safely cool down?
|
|
#
?
Dec 17, 2013 10:17
|
|
|
spog posted:That is some pretty drat inspired engineering. Everything else I own (computers, domestic goods, etc) would just shut down at a predefined temperature. Surely you would be best to keep the engine running at a normal speed (not bouncing off the limiter) so that the normal gas flow would cool it down to standard non glowing operating temperatures, and so that the coolant flow round the engine had more chance of keeping that colder too.
|
|
#
?
Dec 17, 2013 10:43
|
|
|
Tomarse posted:Surely you would be best to keep the engine running at a normal speed (not bouncing off the limiter) so that the normal gas flow would cool it down to standard non glowing operating temperatures, and so that the coolant flow round the engine had more chance of keeping that colder too. Oh yeah, I get that and agree with you (I suppose taking it for a gentle drive might actually be the best option as it lets cool air in) I mean if you've reached the point where there is actual flames in the engine bay, are you able to stop those flames without causing significant damage with the extinguishing process (bearing in mind the amount of red hot metal there)
|
|
#
?
Dec 17, 2013 10:47
|
|
|
wolrah posted:The modular motors would do the same thing, except obviously becoming a four cylinder. This thread seems to indicate it was only on the "Triton" badged truck motors though and not in the Mustang, T-Bird, or Crown Vic. The dealer made a big point of it when my dad bought a '98 Expedition back then. My Crown Vic does it, as I've found out the hard way a few times at slow drive-throughs in Texas summers after the fan controller died. It may only be on Interceptors.
|
|
#
?
Dec 17, 2013 12:16
|
|
Bad Angus! Bad!
|
Chinatown posted:Seriously is that really not worth totaling? As was stated, if you're crazy poor... the powertrain still works. It will still run and drive with fresh front-end parts and cosmetics can be refreshed with junkyard parts if there's any problems there. It will get you to work so you can feed your kids. Only thing I'd particularly be worried about is a destroyed strut tower or other unibody chunk in the front so hopefully that's not happened.
|
|
#
?
Dec 17, 2013 16:45
|
|
|
spog posted:I mean if you've reached the point where there is actual flames in the engine bay, are you able to stop those flames without causing significant damage with the extinguishing process (bearing in mind the amount of red hot metal there) In my experience, unless you have an extinguisher on hand when the flames start, the car is toast. Once the plastics start to ignite the flames spread insanely fast*. Then there's the problem of flammable fluids. I'm not sure what the effects would be if you did have an extinguisher handy though. It'll obviously prevent the flames from spreading making the car salvageable, but I'd guess you'd be paying for new wiring and going over the engine bay with a fine tooth comb looking for damaged parts. * Especially once it hits that foam stuff they made dashboards out of in the 80's. Poor little Subaru went from "huh, is that smoke?" to "holy gently caress the car is a fireball" in about 15 seconds.
|
|
#
?
Dec 17, 2013 16:45
|
|
|
What about sand?
|
|
#
?
Dec 17, 2013 18:43
|
|
|
My old Evo was overboosting after a vacuum leak and one night I noticed a glow from the hood vent, so I stopped to check it out. It only took me a couple seconds to realize that a bright red turbo could start a fire so I immediately kept driving off the boost to cool it down. I think that incident is more along the lines of "proof that morons can destroy a car" than a statement about Ford's engineering.
|
|
#
?
Dec 17, 2013 19:00
|
|
|
spog posted:That is some pretty drat inspired engineering. Everything else I own (computers, domestic goods, etc) would just shut down at a predefined temperature. At least on the trucks it was sold as a "if poo poo breaks when you're in the middle of nowhere you're not stranded" type thing, sort of like how a computer will throttle its clock speed if it gets too hot before fully shutting down. Delivery McGee posted:My Crown Vic does it, as I've found out the hard way a few times at slow drive-throughs in Texas summers after the fan controller died. It may only be on Interceptors. They may have added it over the years, but my '93 Interceptor didn't even have the head temp sensor that operates this feature. That was an EEC-IV car though and I'm pretty sure this feature is only in the later EEC-V ECU.
|
|
#
?
Dec 17, 2013 19:16
|
|
|
Seat Safety Switch posted:The Zetec is so crazy that if you overheat it, it is designed to become a two cylinder air cooled engine: My last car was a Focus and this happened to it. Went to leave for work one day, the CEL came on halfway to work, and I noticed an extreme power deficit. It drove okay other than feeling like I was driving a Jeep in low-range 4WD and I was able to make it to my mechanic without issue...aside from people behind me at stoplights probably hating me.
|
|
#
?
Dec 17, 2013 19:44
|
|
|
wolrah posted:The modular motors would do the same thing, except obviously becoming a four cylinder. This thread seems to indicate it was only on the "Triton" badged truck motors though and not in the Mustang, T-Bird, or Crown Vic. The dealer made a big point of it when my dad bought a '98 Expedition back then. I wish T-birds had that
|
|
#
?
Dec 17, 2013 22:43
|
|
|
Toyota has made its EFI diesels pretty drat resilient too, if you suffer a cooling failure (like you filled your radiator with mud getting stuck in a hole) then the first sign your overheating is the AC shuts off, then you loose power cos the computer massively pulls fuel volumes to reduce cylinder temps (cos with diesel more fuel=more heat). It's pretty impressive to see in action, I was driving up the freeway back into Adelaide after sinking my car and I didn't even see the gauge start to move before the engine cut power. On the flats full power cos it could cool, but as soon as it went to a hill it just backed itself off to keep temps in check.
|
|
#
?
Dec 17, 2013 23:03
|
|
|
Cadillac's Northstar was able to do this for their entire production run - seeing as that engine came out in the early 90s, I'd call that pretty drat good. .... still couldn't keep them from popping head gaskets, but they'd pop the gaskets without ever being overheated for several model years. 
randomidiot fucked around with this message at 11:00 on Dec 18, 2013 |
|
#
?
Dec 18, 2013 10:57
|
|
|
The Northstar V8 is the worst engine ever designed.
|
|
#
?
Dec 19, 2013 00:01
|
|
|
Geirskogul posted:The Northstar V8 is the worst engine ever designed. I submit that it still better than the HT4100.
|
|
#
?
Dec 19, 2013 00:05
|
|
|
Darchangel posted:I submit that it still better than the HT4100. Let's not forget that aluminum block, iron head, linerless abomination from the Vega.
|
|
#
?
Dec 19, 2013 00:08
|
|
|
Darchangel posted:I submit that it still better than the HT4100. The 4-6-8 has a bone to pick with you.
|
|
#
?
Dec 19, 2013 00:09
|
|
|
The GM diesel 350 thinks you are all fools.
|
|
#
?
Dec 19, 2013 00:46
|
|
|
Which one? How about the 350 caddy diesel? Or the 6.0hno? Or the Toyota 3vz-e? If we're talking god awful engines there are a lot to choose from, and the Northstar aint one of them. I'm going to sound like a 6.0hno owner here, but slap in the new set of head fasteners and/or timeserts and they go forever from what I know. Also, jeep 4.0s don't need no stinkin' air cooling system, they run great till they seize and then run great again once you let them cool down, apparently. I've seen one run from Haverhill to Auburn (both in MA) on the highway with almost no water in the block, engine got so hot that coolant burned onto the valve cover and oil pan (leaving gunky caramelized brown sludge spatters) and to the best of my knowledge it's still running today, though probably on borrowed time HG/cracked head/scuffed pistons wise. e: dammit FatCow! 
|
|
#
?
Dec 19, 2013 00:48
|
|
|
Funny enough the HT4100, 5.7 Diesel and V8-6-4 were the only engine choices for V8 Caddies for a bit.
|
|
#
?
Dec 19, 2013 00:51
|
|
|
FatCow posted:The GM diesel 350 thinks you are all fools. Some simple upgrades fixes that. There are some engines that no fixes will save.
|
|
#
?
Dec 19, 2013 00:57
|
|
|
Geirskogul posted:The Northstar V8 is the worst engine ever designed. I have never seen one not covered in oil.
|
|
#
?
Dec 19, 2013 01:00
|
|
|
|
| # ? Apr 28, 2024 01:08 |
|
|
 That's almost good enough for Texas.
|
|
#
?
Dec 19, 2013 01:00
|
|
