ok so i was driving my supra all day today and there was nothing wrong with it ran perfect..then all of a sudden my heat gauge shouts all the way up past the two red lines so i stopped and when i stopped smoke came out from under the hood. so when i opened the hood it was leaking antifreeze all over. so i thought it was just a bad thermostat bought a new one put it in started it and my power stearing went out and the battery light came on. and the belts didnt move at all at first then they slowly started to move and then i hear a thump noise. car still ran fine but i need to know what the problem is so i can fix it asap anyone know what my problem is and how i can fix it?:1zhelp:
big problem!
- Thread starter fastsupralife
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Hmm, so the belts aren't turning when the engine is running...if your belts are in good shape and tight, check your crank pulley and the crank bolt that holds it on (with the car off). Make sure the bolt is tight! If it is, there could be trouble. It's never happened to me, but from what I understand, either:
a. The woodruff key that sits in the groove in the crank and the groove in the crank pulley broke,
b. The crank is damaged at the woodruff key interface and needs repair/replacement.
c. The crank pulley separated (inner piece that contacts crank and outer piece that belts ride on separated and no longer turn together)
Hope this helps!
a. The woodruff key that sits in the groove in the crank and the groove in the crank pulley broke,
b. The crank is damaged at the woodruff key interface and needs repair/replacement.
c. The crank pulley separated (inner piece that contacts crank and outer piece that belts ride on separated and no longer turn together)
Hope this helps!
my guess is that its a ::bhg:: cuz that is the same exact thing that happend to me plus it doesnt help that i was running 14psi on stock hg
thats my .0002 cents for today lol
thats my .0002 cents for today lol
Crank pully/harmonic balancer is a single piece design, but is held together with a rubber piece that over time has been documented to slip (giving false timing readings) or fail.
turbotrev, why would this be from a bhg? I mean, the overheating could have caused a bhg, since the water pump wouldn't have been turning, but a bhg woudn't make the pulleys stop spinning, unless a ton of coolant got on the crank pulley and belts, lessening the belts' ability to turn the pulleys due to friction loss between the two. The belts would have to be waay loose, too. Plus it'd probably squeal like a pig and still try to turn the belts...
I dunno, maybe you could explain more? I just don't see the correlation.
turbotrev, why would this be from a bhg? I mean, the overheating could have caused a bhg, since the water pump wouldn't have been turning, but a bhg woudn't make the pulleys stop spinning, unless a ton of coolant got on the crank pulley and belts, lessening the belts' ability to turn the pulleys due to friction loss between the two. The belts would have to be waay loose, too. Plus it'd probably squeal like a pig and still try to turn the belts...
I dunno, maybe you could explain more? I just don't see the correlation.
hmm i never knew that about the crank pulley, and i was running 21psi on a t4 60 trim for 2 years stock hg no problems, and when if did go it was because my radiator took a crap on me and i overheated, but back on topic
Sounds kinda like the water pump siezed up. Were all of the belts not moving? I'd say that you now have a BHG for sure . That's no biggy though, it's normal maintenance for our cars. Search and do all the proper work need to change out a head gasket (I'd go ahead and replace the water pump too, just to be safe ) and you should be set.
. That's no biggy though, it's normal maintenance for our cars. Search and do all the proper work need to change out a head gasket (I'd go ahead and replace the water pump too, just to be safe ) and you should be set.yeah, a simplified way of thinking about it would be thinking about an inner metal disk that bolts to the crank, surrounded by a concentric rubber layer, like a cylindrical rubber sleeve, and around that is the metal layer that the pulleys ride on. You look at it and feel it and you don't notice that rubber layer, it looks like a solid design at first glance. Unfortunately the design is not really repairable...if you can separate the three parts, it's trashed and it needs to be replaced anyways.
It's that middle rubber layer that gives people problems...do a search for harmonic balancer or crank pulley for more info...
It's that middle rubber layer that gives people problems...do a search for harmonic balancer or crank pulley for more info...
starscream5000 said:Sounds kinda like the water pump siezed up. Were all of the belts not moving? I'd say that you now have a BHG for sure
It does kinda sound like water pump seizure, but he stated that the alt light came on and his power steering falied as well, leading me to believe that the problem is not at the water pump pulley, but at the crank pulley. If it was just the water pump, the water pump belt would squeal hideously and would probably have worn clean the pulley grooves on the crank pulley.
However, if the water pump failed, perhaps it would be enough to separate the crank pulley? You may be on to something with this one...
fastsupralife, pull off the water pump belt and ensure that the pulley for the water pump turns smoothly. In fact, check all accessory pulleys and ensure smooth movement, just to rule out accessory siezure as a cause of failure.
Whether it siezed or not doesn't matter, the damage has been done. A good thing to do would be to replace the harmonic balancer (I called it this because it's best to get one of those and not an underdrive crank pulley) and the water pump if needed (recomended) while servicing the rest of the car.
Now is a great time to do all the maintenance you need to be doing since you'll end up having a good chunk of the engine torn down while fixing shit. You may possibly want to look into rebuilding the engine, doesn't have to be anything fancy, just back to a "like new condition".
Now is a great time to do all the maintenance you need to be doing since you'll end up having a good chunk of the engine torn down while fixing shit. You may possibly want to look into rebuilding the engine, doesn't have to be anything fancy, just back to a "like new condition"
.the motor is new it only has 40k on it and none of the belts move at all now but i took the radiator out.. but i have a shit ton of parts for my car already cuz this winter im fully building the motor so this just gave me a great excuse to start on it:naughty:
OOPS my bad i had a tarded moment then thought i was posting on a diff thread hehe:nuts: :dunno: :aigo:
ok i figured out what the problem was.. the bolt on the crank pully was only being held on by one thread so it was making the pully not turn easy fix but thanks for all the help guys
^ Did you pull it off and check to make sure the groove in it was still good? Did you checkt he crank and the keyway also? Nothing good has ever come of a loose crank pulley, to my knoweledge anyway.
yeah i had to replace the key cuz it got broke off but the key way is still good..mkiiSupraMan18 said:
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