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Discussion Starter #1
Would a radiator fan with 3 broken wings on it cause the engine to overheat and a slight white smoke come from the engine, or could it be something else too? I am replacing the fan hoping to stop the smoke but i think there may be another problem too.
 

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Well, its not going to help matters. Besides, you must have a helluva vibration.......not good for the water pump. :nono:
Get a new fan asap.
 

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Um, white smoke, welcome to the wonderfull world of BHG!!
 
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This happened to me during my maiden voyage back home after getting my new engine/tranny/turbo installed. During the install, the fan shroud got broken in little places, but it still appeared to be intact. While driving though, the fan contacted the shroud and completely annhilated both the shroud and the fan. I had severe vibration at most speeds, and of course it was a mess in the engine bay (plastic EVERYWHERE!)

All I ended up doing is remove the remnants of the fan and the shroud, and instalied an electric fan from the parts store (2400 CFM flow), and shimmed the water pump pulley bolts about 4 shims each (the better way to do this is to buy smaller bolts, I think they are 10mm). Wire up the electric fan (I don't know the wire to connect to on an 87 like yours, just my 90), and you're good to go.

However, you have a much bigger problem. Buy a block tester at NAPA or somewhere, you likely have a BHG. There is no reason for the car to smoke and overheat (like a BHG does) when your car's fan is damaged. Although the reduced flow will make it run warm, a BHG is more likely to be your problem.

If indeed it is a BHG, you have several options (and of course, this is the most talked about problem of any Mk3 supra, EVER). You can purchase a ready to go motor from places like jarcoinc, maxx autoworks, and many, many others. The guy that did my car probably has a few engines left over, as all he does is install 1JZ engines for these cars. Which brings me to another option, install a 1JZ engine. This is much more complex, but the rewards CAN be great. Finally, you can attempt to repair your engine entirely, and reinstall either a factory improved HG or go with a metal head gasket and ARP bolts, and a whole mess of other things that go with installing a MHG. You have to machine and ap the head and possibly the block, test out a lot of measurements and make sure the engine is still stable. Lots of variables there, so it can get tricky.

Since this is one of your first posts, I need to direct you to read the sticky's about all this BHG stuff, and about MHG's too. In fact, read every sticky about this car if you can. This car will bite you in your ass (thats where your pocketbook is, right?) if you don't watch it.

Rundown of costs estimated:

New 7MGTE engine complete with MHG and ARP studs, ready to go - $2200 at www.maxxautoworks.com Others here can probably do better for less money, but you must ask.

Rebuilding your motor with stock HG - between $500 and $2000, depending on what is damaged or worn in it.

Rebuilding your motor with a MHG - between $750 and $2500, again the same variances

Replacing your 7M motor with a 1JZ twin turbo engine - between $3000 and $5000, depending on your luck and your shopping prowess.

These estimates DO NOT include labor to install and remove parts, but do include the cost of machining and lapping.

Bottom line (if you've read this far you must still want to keep this car), you're gonna have to spend some money either way, so get ready and good luck, may your expenditures not exceed your expectations!
 
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yeah true, but about 90% of the time white smoke does mean BHG. If its white smoke with a little blue smoke kinda mixed in, and theres a lot of smoke, its probably the BHG
 
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LOL, it took me so long to write that post that two others posted about BHG while I was typing!

Guys, he has only a few posts on here, ...He's probably got a BHG. Since all of us would have tested for it before posting since we are so familiar.
 

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Discussion Starter #8
whoa thanks lance for the awsome reply. I figured it was probably a BHG and have read a lot about it. Also, how can i tell if my water pump is bad. When i bought the car i was told it needed to be replaced. But I took it out and visually inspected it and everything looked fine. Would that cause whitesmoke? Ha hoping for anything besides BHG.
 
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haha look at my avatar, my shroud decided it didnt like my fan anymore and took it out
 

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NeverNZ said:
haha look at my avatar, my shroud decided it didnt like my fan anymore and took it out
I had the same problem after my crash, but the asshole tow truck driver decided it would be a good idea to drive a broken car off the bed (with a cracked rad) and destroyed the fan. If anything more serious happened I would have killed the guy. The new fan only cost me 5 bucks at a local junk yard.
 

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Just say no to Supras
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Check for general coolant leaks if you have white/clear steam coming from the engine area. I ran around for like 3 weeks with a leak, and every time I boosted, it steamed like a mutha! The sad part was that I had the replacement part (a hose) sitting on my desk for 2 of those weeks because I was too lazy to fix it :)

Now if the white smoke is coming out of the tail pipe, then its time to worry.
 

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Discussion Starter #13
Exactly its a white clear steam coming from the engine area. Where should i check for the coolant leaks, like what hoses. Sorry im kinda of a noob to this but i love cars and my supra and am going to mechanic school in January so my noobines will all change.
 

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Thats cool. Try to narrow down the area by looking in the engine bay for areas that look wet, or look like there are watermarks. The first place I would check is the front and rear of the exhaust side of the engine. There is a little elbow hose in each location. In my case, it was the front one. I couldnt belive how much coolant was leaking from it, but that was the problem. They are cheap ~15 for the dealer. Kinda a pain to replace though.

If not, the other hose include the radiator hoses, the heater hoses, and there are 3 little hoses under the intake manifold IIRC.

Good luck with it!
 

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so wait...he fucked up his fan and produced some white smoke and that means he has a BHG? WTF?!?!

what probably happened is that you sliced a piece of your rad. or a hose, or something. change your fan tho, u dont want that imbalance in your car.

i totally phucked up my fan once cause the shroud made contact with the fan. Took my shroud, fan and sliced a piece of my radiator and i had white smoke comin out from that area too....damn, i musta had a BHG. :D
 
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