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Im in the seach for an infrared temp gun recently, looking to buy one. The only ones i have used have been Raytek and they seem to work great, but i was wondering if anyone else had any other ones or even if they have a raytek, what do you think of it? I see some of the smaller raytek guns for...

Im sure some of you engineering or chemistry majors may have heard of this, but if you haven't its some pretty cool stuff. Its tiny magnetic particles suspended in a fluid, basically making a magnetic fluid in which you can electronically control its viscosity. In automotive applications they...

Ive been having this problem with my 7mge lately, and i was wondering if i could get some input from you guys. Before my drive from California to Az (around 5-600 freeway miles maybe) i never had heard this noise before. Sitting at idle, only sometimes, i will hear a randomly occurring, but...

I have been having overheating problems as some of you know, and i just had a thought. I recently replaced my head gasket on my 7mge a little while ago and had the head machined. I remember now i never checked the head thickness before or after the machine work was done, but i remember very...

I was wondering if there was any way to check the adjustment of the hot/col blend door and where i would find it? I was unable to locate anything about the heater or climate control system in the car in the TSRM and i searched all over this website and got nothing useful. Today i was driving...

My car consistently seems to get too hot on the freeway. Cruising at about 65-70 with the ac on high, my temps slowly climb to 210, which is when i turn the ac down/off and it helps get the temps down, with the ac off it seems to hang around 200-205 degrees, which still seems too hot. The...

OK, well, before i moved here, i had r12 in my system, i think it was the stock charge, and it was low, and instead of paying up to recharge with r12 i tried some hydrocarbon refrigerant, which was a bad idea and didn't really work well. After this i decided to go all out and convert my system...

Ive been doing some research on the cars normal operating temperatures and from what i have found it looks like 176-210 degrees farenheight are about the regular ecu operating ranges, anything outside of this the ecu will adjust timing, from what i read. Well ive been driving my car today quite...

I was wondering if anyone has actually deliberately locked up their stock fan clutch? I am going to be moving to a very hot climate and i think it would be fine if the clutch was engaged 100% of the time. It would be cool if i could make something that i could put on or remove any time rather...

Long version of problem located here. http://www.autoacforum.com/messageview.cfm?catid=2&threadid=19729 Basic version: I think when filling my AC system, i overfilled the oil. I had no idea how much was in there, and put more oil in because i would rather be safe than sorry. Long story...

So im trying to figure out this wiring diagram and need some help. This is the rear window defogger circuit. http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=084 The trouble i am having is understanding the defogger switch. It is labeled "with timer" and "w/o timer", and i am...

I have a pretty simple question.... Why is flow so important rather than pressure? As long as there is pressure, doesn't that mean the bearings are coated? Why must you have so much flow, its not like the oil needs to carry away particulates or something like that, so as long as the bearings are...

I recently did a head gasket job on my NA Supra with 86k original miles. It had a slightly blown head gasket in 5 and 6. I took it all apart, got everything machined and put the head on a stock head gasket with new bolts torqued to 72 ft lbs. The head had some pitting around 2 of the coolant...

I have looked in the TSRM, and the only thing it mentions about the fluid coupling fan clutch is that it should not have any signs of leaking. Now, i don't see any signs of leaking on mine, but is there a way to functionally test the fan clutch? I am going to be moving to an area with very warm...

I'm having trouble with my idle. Every time i drop the car to neutral or press the clutch and let the engine idle from driving, the idle will be about 1100 rpm. If i sit and wait about 10-15 seconds it slowly returns to normal 800 rpm idle, but as soon as i drive a little bit and do it again...

Well i fixed my very slightly blown head gasket just last weekend. Ever since, i have noticed that when the car is still hot and i go to turn it back on, after sitting maybe 10-15 minuets, it cranks for a very long time before it starts. Starting in the morning or any other time when the car has...

This is a pretty noobish question but im really lost here. I cant seem to find much info on how to clean the intake/exhaust valves that i have out of my NA head right now. The exhaust valves have some really tough hard baked on stuff and i cant seem to get it off. I put all the valves in a pan...

Are there any special camber eccentrics or something that you guys use for your lowered supra? I just have megan coilovers and i was trying to align my car today and found it very hard to get both caster and camber in specs, and in the end they were just barely in specs because the eccentric cam...

I have this ongoing problem that i cannot figure out. Whenever my car cools down and is cold, when i squeeze the upper radiator hose i can feel air in there, and i can put a funnel on the filler and squeeze the air out and add more coolant. But the next time i drive the car and it cools off, its...

I have an 87 with 83k original miles. Im a little nervous because i have read the headgasket tends to go in the 80k mile range. I was wondering if head gaskets will give any type of warning at all if they are weak or close to blowing. I have 0 bhg symptoms at the time, oil is clean, coolant...