4A-GE 20V Enthusiast

Dashboard Model AE101 Coupe (Trueno / Levin)

Can not control the A/C ?
Only can run at “AUTO”, no LO and HI options…tempreture also can not be control anymore…

Yup…it’s because of this fella…
The A/C Power transistor …located at the A/C Blower, under the dashboard. It controls the output voltage of the blower.

AE101 power transistor part number

Symptom :
1) Switch on A/C, poor idling. RPM drops about 0.5K…
2) Compressor makes excessive noise

The reasons :
1) Leaks
- One of the most common compressor failure is due to loss of lubricant. Most common places the leak take place are hoses, pipe connections (flange gasket and O-rings), condenser and evaporator.
- For my case, there was a leak at one of my hoses, due to that, it contributes making my compressor very unhealthy…heeeee

2) Compressor clutch problem
- the clutch is not working properly, maybe the magnetic clutch did not engages when energized, when i turn the compressor pulley, the movement weren’t so smooth…others maybe include a bad relay, fuse, wiring problem or a defective clutch
- how to determine the clutch engage or not, by jumping the clutch lead with a jumper wire from the battery, it will show if the problem is in the clutch or elsewhere. If not engaging it’s the clutch problem.
- If the clutch engages, it maybe due to clutch power supply, such as relay, fuse, wiring, switch or control module. You can detect al these by simply work backward, from the compressor to the battery to find out the root cause, mainly voltage problem.

Through out my mechanic finding, due to my compressor problems, (as mentioned in the Symptom) , it makes my cutout switch burned, all the wiring near by was caught up in flames…lucky nothing serious happened.

This is the picture of the burn-out cutout switch (I think). See the burn mark…

new compressor

3) Clutch air gap
- as mentioned before the clutch not turning very smooth and it also makes the clutch air gap reduce or wasn’t the correct gap. Through out my finding, most of clutches air gap was around 0.015 to 0.040 inch.

Soooo…with these 2 problems with my compressor and keep on ignoring to replace my compressor, it makes my compressor cutout fails to operates properly and finally it burned. Since the cutout switch burned, the future consequences are…compressor will burn, compressor belt also will burn and the worth part is the whole engine will caught up in fire, because not cutout switch, which supposed to protect the compressor from such damage. (As mentioned by the A/C specialist) .

Solutions :
Replace the faulty compressor with a new one. By doing so, the idling when A/C is on is much more better. Others that related, better acceleration during A/C is on with better FC.

Others :
Top : New Compressor
Bottom : Faulty Compressor

top picture : Faulty AE101 compressor part number and details
bottom picture : New AE101 compressor part number and details
P/S : Old model R12…better to changed to R134a, for better protection to the environment…heee

2JZ-GTE in AE101 body is burning tires at Bangkok Drag Avanue

Take a peek into our local custom clutch plate from BRClutch…formerly known as Kianleong Clutch
 

	6pad carbon full racing clutch
	A closer look into the springs…
	Clutch friction material
	Pair up with this normal clutch cover, as mentioned on the box. Product Code : TYC549 OD : 212 ID : 140 PCD : 250 : For Toyota C52 Gearbox, AE101 (Short Ratio) might be the same for C56 GB (AE111)

Comparing…

	Differences between stock setup (top set) and the new setup (new set, BR Clutch and Exedy Clutch cover) .
	Silvertop flywheel (left) and Blacktop flywheel (right)
	Silvertop flywheel (left) and Blacktop flywheel (right)
	Silvertop flywheel (left) and Racing Flywheel (right)…Sweetttt !!!

The Results : Smooth engagement, no harsh, moderate on the clutch release and good grip…the starter not so strong…worth it… Next Project, need to install thier new product, BRclutch double pressure racing cover

Both BRClutch product, Full racing clutch disk and double pressure racing cover has a 1 year warranty on crack n damage…but burn out n normal worn out not warrantied… For more info please contact Brian , +60125206007, Location Ipoh, Malaysia. For review on other variety of product, please refer to this : My-Acoustic