MA70 heating problems.

[EldarO]

Natrad will acid dip it at a bare minimum, so thats that sorted.

I didnt have a hand with hooking up the turbos cooling lines.

the engine was bought in, and put in, not a single change was made to it, not even the oil filter, which i shouldve done, but realised too late :/

Im just happy its all good! I love this car!

Eldar.O.

[Lambolica]

Somthing else that can overheat a car... Check that you timing is correct if it is out by a long way the engine may over heat.

The 2 small fans and the fan in front of the radiator are for A/C condensor cooling and oil coolers.

[EldarO]

Timing appears to be spot on, the car doesnt lag, backfire, sputter, stall or over rev.

hmm, so its only doing it when the oil gets hot?

Well, whats the sensor above the temp sended supposed to be then?

Ive found that disconnecting/connecting it switches the two fans on and off.

I also have a slight suspision that ive installed the Hydraulic Fan the wrong way around :/

Ill go check.

Eldar.O.

[JustCallMeOrlando]

Whenever you get a chance, give it a full service of the incidentals. Oil, oil filter, coolant (use Toyota Red and flush it THOROUGHLY), get yourself a new 82 degree thermostat and seal (which is what I *think* the Aus-MA70 would've had, whereas the Jap might've had the 88), and even give the plugs a clean (assuming they're platinum).

It's no use sticking in the new radiator if everything is all gunky, and the engine has probably been sitting for a while before you got it, and the engine will love you for it in the long run

That and the other fact it's f'ing hot here atm

[EldarO]

I have toyota red to go in after im certain all the leaks are gone, the thermostat is the 88 degree one, as both the car and the new engine are from jap-land, im not sure what the plugs are, im assuming platinum.

That said though, i checked again, and the coolant is the same level as yesterday, no oil or brown water spots under the car, and no visible puddles, the car doesnt pop, fart, stutter, struggle, struggle to start, blow smoke (only while in cold start) or stall.

As far as i can tell, its driving and boosting exceptionally well, and im loving this car more and more

Eldar.O.

[hamgatan]

bullshit you miss the 2Y.. admit it!

just a note also.. its really recommended to change the oil pumps in a 15yo 7M upon rebuilds slash transplants... did u change it? usually theyre pretty shot by that age from what i hear.. i think mine was changed prior to my swap so it was okay..

[EldarO]

Oil pump was not changed, but is doing its job.

And i do miss the 2Y, i shouldve replaced it with a 3SGTE, the gearbox bolts up!

much like your going to do.... right?

My motor appears to have been taken very good care of by the old owner, belts and services appear to have been done on time, purrs like a kitten, as you will find out soon enough Chris.

That said, it got really hot today, and the cars running temp reflected that, natrad gave me the stiff, even though i booked it in, and i had to stop multiple times onthe way home to let it cool down in between running, as the temp was above my comfort level 230-240 degrees fahrenheit.

The radiator has spots in it that are very cool to the touch, although im not sure if this is just a super efficient radiator, a blocked radiator, or a munted water pump.

Radiator cap off, if i rev the engine, it sucks water in, off throttle, it comes back up to level.

Booked in again on friday morning to another place.

Eldar.O.

[whatthe?]

Any good radiator shop or mechanic should have a tee - kay tester, get them to do that before you spend too much money on other remedies. I had all the same problems you did (except the blown hose), and spent a butt-load on new radiator, engine flushes, thermostat blah blah blah all because I reasoned that my car ran too well to have BHG, didnt have oil in coolant or vice versa, no creamy stuff under the oil cap etc etc.

My rule of thumb for the 7M is this;

If you suspect you have a BHG then chances are 9 out of 10 that you do.

I hope it isnt for your sake (I just replaced one in one of my 7M powered cars last week, pain in the ass job much! Especially for GTE).

Tee-Kay test is your only sure way of knowing

[EldarO]

I will get the poofs at auto bahn to Tee-Kay test it friday morning then, thanks for the info mate

i just went out for a drive to warm it up, because i had a suspision, i warmed it up to normal temp, got home, popped the bonnet and felt the radiator.

the top and bottom tanks are hot, and only 5-6 rows, right under the rad cap are actually warm, the rest were stone cold.

its aggrevating me, because it does it on and off, sometimes it runs awesome, sometimes it does this, i dont know what to think.

thanks for te headup, ill get that test done ASAP.

Eldar.O.

[EldarO]

Tee-Kay test came back positive for exhaust gases in the coolant,

shes in the shop now, being stripped down next week.

ghey.

Eldar.O.

[Yian]

Tee-Kay test came back positive for exhaust gases in the coolant,

shes in the shop now, being stripped down next week.

ghey.

Eldar.O.

D'oh... sorry to hear that. Look at it this way. It'll come back bigger and better, and when you get rid of it for the 1jz, I'll probably get yours heh heh.

[EldarO]

D'oh... sorry to hear that. Look at it this way. It'll come back bigger and better, and when you get rid of it for the 1jz, I'll probably get yours heh heh.

I priced it up, for the price quoted to fix it, in addition to the purchase price of the engine, i couldve bought a 1JZ auto front cut.

add $1000 or so, and i couldve gone manual too.

Jay Zee Powah will be welcome when it comes at the end of the year

Until that time, im not going to get bitter, theres no point, shit happened, no use getting bent out of shape about it.

Oh, just to show everyone what its capable of, 2006 WRX STi - 0 / 1990 MA70 Supra -1

He was pretty pissed, we both stopped at the speed limit.

Im looking forward to chewing through a few skylines when the time comes - OST Drag Day 15th Feb

on a side note, anyone selling a metal head gasket in Perth?

Eldar.O.

[whatthe?]

Sorry to hear it dude, but I suspected as much. At least you didnt spend any more money on stuff that wouldnt have rectified the problem

[EldarO]

Thanks to you

cheers for the info mate, the guy at auto bahn was taken aback when i asked for a Tee-Kay test

once again man, thank you

Eldar.O.

[whatthe?]

Welcome dude, glad to help a fellow 7M victim