transmission cooler questions

[addisonblck]

alright. i picked up two transmission coolers from a junkyard today. so im wondering.......

do i need to run any type of restrictors on it? also does anyone know of any diy's on it? i can do it myself but i'd prefer some reasurance....

[1KleenS13]

You shouldnt need a restriction. Make sure they are CLEAN inside or you will contaminate your trans with crap.

You shouldnt have too many problems doing it yourself, its only a trans cooler. I would mount it in front of the rad FWIW

[addisonblck]

true. i have all my stuff to do it now. (some plugs hoses and clamps.)now i just need to either tap my original oil plugs or get something else to use...

[1KleenS13]

What kind of coolers are they? You can probably get barbed fittings for them. Like I said though, MAKE SURE THEY ARE CLEAN!! I personally would buy a new one, I have a hayden ($90) on my T-Type thats rated for 28,000gvw (you dont need one this big) and my trans temps are pretty cool. If you do buy an aftermarket one make sure its a "stacked plate" style, im not a big fan of tube and fins. But if you want to use the ones you have you can get the barbed fittings for it, you could even use both of them in series for more cooling capabilities. Good luck

[addisonblck]

hmmm..... sweet.... well i do have two of them so lol might as well see what i can do .thanks for the hell man

[Patarach]

are we talking AT?

[addisonblck]

na its a MT which kinda concerns me. i KNOW its not suppose to be gettin as hot as it is and honestly i do go to the track... ever.

i changed the clutch and the throw out and fluid and it still gets hot. enough to where my carpet shows dis-coloration.

hence why im gonna put the oil cooler on

[Patarach]

Where is the discoloration exactly? I have honestly never heard of those trannys ever having overheating problems with normal operation which is why this strikes me as odd and leads me to believe if it actually is the transmission you might have other problems. and the cooler would just be a band aid, that is if the manual transmission had a fluid pump on it.... which last time I checked it doesn't.

[addisonblck]

well its dis coloring along the transmission well. along the side where the center console sits. . . i actually have shoes with burns on them. ( this is after the fact of me pulling the carpet because it was filthy and the burnt look and smeel was starting to annoy me)

but i'm wondering now. where would i tap into the transmission at? if it isnt done in the right place, wont the pressures be wrong and in theory serve no purpose at all? AKA no fluid running threw the cooler?

[Firewind]

MT's don't push the gear oil through them like an AT does with the ATF fluid. You're not going to have pressure to push through the oil to the cooler with a MT. You would need some kind of external oil pump hooked up to a line.

A transmission should never heat up that hot anyway. If it actually is your transmission something else is majorly wrong. Even then I still doubt such high heat.

If I were you, I'd look at my exhaust. It runs right next to your transmission. Maybe your cat is clogged? A backed up cat can cause some major heat. I'd look at your exhaust system.

[addisonblck]

. . . . . . . it never even crossed my mind. -that is a very solid point on all accounts.

-while my transmission does have a small whinning noise with a bit of grind, it doesnt act as though anything is terribly wrong.

-the exhuast on the other hand is an entirely diff subject. stock POS covered in rust and in need of a good changing.

im checking that as soon as i get off work. thank you very much

[Firewind]

a little grind isn't too uncommon for 240sx's. I am guessing it's when you shift from 1st to 2nd that you get a little grinding noise. It's not exactly healthy either, may want to look into getting some Pennzoil Synchromesh, I think I did a 1/3 Synchromesh and 2/3rds 90W gear oil in mine, and I didn't have that annoying grind. I am unsure of the wining noise though, could maybe be low on fluid?

But yeah, drive home, feel near your cat, if that thing is radiating a lot of heat, their is your problem. (Yeah don't touch your cat, ouchy burns bad.) I have seen cats that glow freaking bright orange their clogged so bad.

If you think youre's is clogged, drop the exhaust, and look at your cat, see if you can see any melted "honey comb" in there. That stuff is brittle ceramic stuff, you can break it out with a metal rod. (However you may want to replace it if your state has emissions.) Oh yeah, you'll wanna do it out side, that stuff is dusty and full of crap, wear a mask too, s*** is nasty to breath in.

Lemme know what you find out.

[addisonblck]

will do. i should have results tonight. thanks alot for the info

[1KleenS13]

I thought you were talking about an automatic trans . I dont see a need for any coolers on a MT, but IF you wanted to you would have to run a pump. You could utilize the drain and fill plugs for supply and return lines, but I feel like your pissing up a rope at that point. Sorry for the mis-communication. Spend your money on the exhaust.

[addisonblck]

lol thanks man...well i just checked it and while it is very hot( 180 mile drive from my ase to the house) it does seem crazy hot and no super heat redness.

however there isnt a heat sheild there....i just discovered that.

ps sorry about the confusion.

[addisonblck]

okay it def gotta be the exhaust.

while the transmission could use some tlc its not that bad off.

but the transmission well gets hot enough to cook on the drivers side while the passenger's side stys relatively moderate( but you can feel the hat creeping over to it)

so im gonna order one of the exhausts from hitman and see wat happens

[Patarach]

while hitmans exhausts are pretty awesome the reason why its probably getting so hot is the catalytic converter. change it or at least check it like guy above said.

[addisonblck]

^ yea i checked it. and im guessing its kinda stopped up cause its a good bit hotter than the rest of the exhuast after a good ride. i'm just gonna get the system and another cat or non. no emisions in louisiann

[1KleenS13]

^ yea i checked it. and im guessing its kinda stopped up cause its a good bit hotter than the rest of the exhuast after a good ride. i'm just gonna get the system and another cat or non. no emisions in louisiann

The cat should be hotter than the rest of the exhaust. Thats how it cleans up the exhaust gases for emmisions.

I personally dont think you have a problem with the trans or the exhaust. Just relax............you'll live longer

[addisonblck]

hmmmm....i like your theory but it still leave the excess heat problem unsolved.

it seriouly gets hot enough to cook on. so id say i have some sort of problem. i put the heat shield back on it to see if that would help out( scalped it off my shell) unfortunately it didnt do anything. same problem occurred

[Firewind]

Yeah, if you don't have emissions, brake that crap out of your cat man and I bet you'll be set.