Cooling Problem? or bad HG?

[Burntz]

for one, fix your timing

two, dont just cut off your cat...if its bad you shouldnt sell it, if its good, you want it. i guess its up to you, but your car will pollute a lot more without it. not good at this point in time. and i dont think its smart. if you are worried its clogged you can remove your exhaust and take a quick test drive (loud!! and dont let it get hot or sit idling with you in the car!!!) or cut it off and replace it with your choice of exhaust pieces.

you shouldn't be smelling gas. its possible you have a leaky fuel system or injector... if its excessively rich or your timing is way off i guess that could do it, but just fix your timing. having you car tuned funny to start will just make everything else harder and you dont want the extra varaible - bring it to stock.

if you decide to drive her more, look underneath at the cat and see if its too hot, if its clogged there's a chance it will be RED hot. DO NOT touch it, but if its excessively hot you might be able to tell and that will give away if its clogged. otherwise i dont know how you can outwardly tell if its gone bad.

if your car cuts out at 3500-4k like you said when you rev it, it will not run right when you're flooring it under a load. until you get the engine running right you wont know if its the clutch or an engine issue. again, timing might effect this. so fix it. if your plenum clicks to full-bore under full-throttle, you'll feel more power, and then if your engine gets starved or starts getting to far out of time/rich, you will start having problems. the car does react differently under full-throttle, and the HP curve might just be at around 3.5K RPM... not sure. if you want to hear proof that your intake changes, turn the key on (not the engine) and depress the throttle. nearing full-throttle you'll hear a click when the plenum valve moves.

as for your AFM - you should look at a stock one before deciding that is has been modified. clear silicone? i'm not sure if that isn't stock. mine is silicone-sealed and if its been tampered with i will be suprised. and worried. but either way. find one you know is stock. unless its a mess, yours might be. and i think there is a test you can do on at AFM to see if its still good. but you could just swap it permanently or temporarily to see the effects. hopefully the new part is a good one though.

You give a lot of great information, :aigo:

I know its been messed with, the silicone is messy and I looked at a stock one, and it looked.. stock? haha, mine has been tampered with.

Never thought to check the cat once i got it warmed up and ran it a bit, will do soon. Also, that is my plan. I'm going to cut it off and weld a straight pipe in.

If I fully put my foot in it, the engine sounds a tad weird past 4k, and I know its probably because of insane backpressure.

I raced my friends single cam, 2 valve, 4 cylinder friggin jeep with a manual and lost, so something is wrong with my car

I will knick that AFM, put it on, and then figure out how to advance timing, and try to check my timing on mine. God I know all this stuff for a DSM, just not a Supra, ugh lol

Edit: Its probably rich, because a common mod is to pop that cover off and click it a few clicks to make it run slightly richer and improve performance, but they prolly fucked it up, lol (at least thats what my friend told me)

 

[Figit090]

yeah, AFM's are delecate...do it wrong and it will break.

if you lost to that jeep something is definitely wrong, but we already knew that. dont thrash your car when you know something is wrong BTW...you'll break something.

thanks for the props on the info. just make sure you dont take everything i, or anything for that matter, as total fact. people can be wrong and you should think before doing. but i try to make it known that i'm not sure of something when i say it. i have decent ideas and try to give possibilities, but most of what i know is from second-hand knowledge off forums, so specific details or first-hand knowledge is not my best feature on here. i know how to do a BHG though! lol...

but yeah, i try to mention it when i give possibilities that may or not be causing or doing something sometimes... and i sometimes just dont know for sure, but like to put possibilities out there.

 

[Burntz]

Possibilities are usually all I need though. Im a dam smart kid, I just need ideas and advise. If worst comes to worst, i'll just tear it down and do a stock HG, but I really would rather just pull the block and do my GTE rebuild on it, and get it machined for a MHG so I never have to worry about it again,

GAH if I could just sell my Bronco and get this sponsorship money

Edit: I didnt thrash it heh, I shifted by 5k cuz i hate going much above 4k cuz of the backpressure. But I still should have smoked hiim short shifting, its a tank with a small engine, not cool haha

In my defense, he did have free flowing straight pipes though

 

[supramacist]

It's a fugn JEEP.

You don't have to short shift to beat a jeep, lol.
It matters not what type of pipes he has. With that gearing you should have walked him like he was your dog and then left him wondering why he even tried.

You have issues, or your auto does atleast.

This cracks me up.

 

[Burntz]

It's a fugn JEEP.

You don't have to short shift to beat a jeep, lol.
It matters not what type of pipes he has. With that gearing you should have walked him like he was your dog and then left him wondering why he even tried.

You have issues, or your auto does atleast.

This cracks me up.

I know i know, I feel so embarrased by it that I want to make excuses haha.

Dam my car and it running like shit.

 

[iwannadie]

Possibilities are usually all I need though. Im a dam smart kid, I just need ideas and advise. If worst comes to worst, i'll just tear it down and do a stock HG, but I really would rather just pull the block and do my GTE rebuild on it, and get it machined for a MHG so I never have to worry about it again,

GAH if I could just sell my Bronco and get this sponsorship money

Edit: I didnt thrash it heh, I shifted by 5k cuz i hate going much above 4k cuz of the backpressure. But I still should have smoked hiim short shifting, its a tank with a small engine, not cool haha

In my defense, he did have free flowing straight pipes though

I dont know what kinda jeep you 'raced' but an inline 6 is a very common motor in jeeps. Ive seen v8s in many jeeps as well. Just because its a jeep doesnt mean its slow. Again, depends on the jeep but he very may well been lighter than you with an i6 motor. So, ya its not outrageous to think a jeep beat a supra.

 

[Burntz]

I dont know what kinda jeep you 'raced' but an inline 6 is a very common motor in jeeps. Ive seen v8s in many jeeps as well. Just because its a jeep doesnt mean its slow. Again, depends on the jeep but he very may well been lighter than you with an i6 motor. So, ya its not outrageous to think a jeep beat a supra.

Lol... If you read, I said that it was a inline 4 cylinder SOHC 8 valve..

single cam + 2 valves per cylinder + 4 cylinder = slow

which means at the moment , my supra = embarrasingly slow

 

[supramacist]

You'll get it squared away man don't fret.

 

[Burntz]

Checked earlier, no red hot cat, am going to try to do it today anyway though

 

[Burntz]

So we have definately decided that the smoke I get is blue ( bad rings ) and I havnt seen any milky oil, and I no longer hear air in the coolant so... no BHG? Just a ring job? haha Id rather have the BHG.

And I should get the bad cat off 2morow

 

[Figit090]

its possible you have a bad throttle body seal (leaking oil into plenum -> cylinder -> boom -> smoke)

 

[jetjock]

Oil in the TB? You mean coolant. That said he has a BHG. Denial isn't a river in Egypt

 

[Figit090]

no...i meant...oh...wait...that is what i meant.

i'm kinda tired...IB testing was today.

and he said the smoke was blue....

considering the flucuations of the symptoms i wouldn't guess anything until he burps the cooling system, keeps tabs on the oil, and waits for better results.

its always possible he has bad valve seals/blown rings and/or a BHG...

but since his car is acting different i dont know what to say. just gotta wait i guess.

an exaust-gas tester sounds like the way to go now.... check that coolant.

 

[Burntz]

no...i meant...oh...wait...that is what i meant.

i'm kinda tired...IB testing was today.

and he said the smoke was blue....

considering the flucuations of the symptoms i wouldn't guess anything until he burps the cooling system, keeps tabs on the oil, and waits for better results.

its always possible he has bad valve seals/blown rings and/or a BHG...

but since his car is acting different i dont know what to say. just gotta wait i guess.

an exaust-gas tester sounds like the way to go now.... check that coolant.

Is thier a definate way to burp it? Driving home from a 20 min drive earlier, i started to hear the "waterfall" again, it was really weird. And I may try to track down a exhaust gas sniffer.

 

[Figit090]

its a test-kit. block tester i think. not totally sure. NAPA might have them.

yes. do a search on burping. basically you open the radiator and let the air out. but there are steps to it and tips on getting better results. most say you need to get it on a hill so the radiator filler cap is the highest point in the system and will let air out. but again, search.

 

[Burntz]

its a test-kit. block tester i think. not totally sure. NAPA might have them.

yes. do a search on burping. basically you open the radiator and let the air out. but there are steps to it and tips on getting better results. most say you need to get it on a hill so the radiator filler cap is the highest point in the system and will let air out. but again, search.

I thought that the radiator cap was supposed to always be the highest point in the system, on a even plane..? does the hill just help more? lol

 

[supramacist]

It's a loooooooooooooong process. Depending on how big the waterfall sound is in your auto. The higher you can get the nose of the car the quicker the air comes out. I don't know about the hill.

I just put mine up on ramps.

 

[Burntz]

It's a loooooooooooooong process. Depending on how big the waterfall sound is in your auto. The higher you can get the nose of the car the quicker the air comes out. I don't know about the hill.

I just put mine up on ramps.

So... just get it on a hill, or jack stands or a ramp? Then what? hah. Squeeze the hoses with the cap off? Put the cap on, run it, then take the cap back off? Repeat?

 

[Figit090]

SEARCH SEARCH SEARCH.

holy crap search.

i cant emphasize that enough. no GO!!!

i'm not answering your question until you do because the answer is already on this forum numerous times and maybe even in a writeup.

i'm not trying to be mean. i'm trying to save energy.

 

[supramacist]

Elevate the nose of the car.

Remove the rad. cap

Start engine. Check it every 15 minutes or so and top it off.

This will probably go on for hours.

It's a slow process.

The higher the nose,

The quicker the process.

How will air escape propperly if you leave the rad. cap on???

IT WON'T.

Some guys say to run the heat full blast while doing this.

I have never done that.

You have nothing to lose.

This is all the 411 you need.

The search button is your friend.