|
|
|
|
|
#1
03-23-2012, 02:42 PM
|
|||
|
|||
|
Where is the high side A/C port '88 300SEL?
I found the low side:
 Looks like it was converted to R134 at some time. Where is the high side fitting? The compressor is turning but the air is warm. The low side pressure at rest is over 100psi. 
|
|
#2
03-23-2012, 11:35 PM
|
|||
|
|||
|
Either in front of the radiator by the air scoop or on the hose under the air scoop. In your pic it will be out of the frame in the lower left corner.
__________________
 90 300TE 4-M Turbo 103, T3/T04E 50 trim T04B cover .60 AR Stage 3 turbine .63 AR A2W I/C, 40 LB/HR MS2E, 60-2 Direct Coil Control 3" Exh, AEM W/B O2 Underdrive Alt. and P/S Pulleys, Vented Rear Discs, .034 Booster. 3.07 diffs 1st Gear Start 90 300CE 104.980 Milled & ported head, 10.3:1 compression 197° intake cam w/20° advancer Tuned CIS ECU 4° ignition advance PCS TCM2000, built 722.6 600W networked suction fan Sportline sway bars V8 rear subframe, Quaife ATB 3.06 diff
|
|
#4
03-24-2012, 12:33 PM
|
|||
|
|||
|
Use the one up front, that is the high side. It appears you haven't had a real conversion, somebody just put a low side fitting on and shot some 134a at it. You'll need a high side fitting if you're gonna go 134a.
The fitting on the compressor is another low side port. The "S" and "D" are "suction" (low) and "discharge" (high).
__________________
90 300TE 4-M Turbo 103, T3/T04E 50 trim T04B cover .60 AR Stage 3 turbine .63 AR A2W I/C, 40 LB/HR MS2E, 60-2 Direct Coil Control 3" Exh, AEM W/B O2 Underdrive Alt. and P/S Pulleys, Vented Rear Discs, .034 Booster. 3.07 diffs 1st Gear Start 90 300CE 104.980 Milled & ported head, 10.3:1 compression 197° intake cam w/20° advancer Tuned CIS ECU 4° ignition advance PCS TCM2000, built 722.6 600W networked suction fan Sportline sway bars V8 rear subframe, Quaife ATB 3.06 diff
|
|
#6
03-24-2012, 08:40 PM
|
|||
|
|||
|
Poorly. Its my opinion that the evaporator is too small relative to the cabin size to effectively cool the car with 134a. The adapters do simply screw onto the original R12 ports.
__________________
90 300TE 4-M Turbo 103, T3/T04E 50 trim T04B cover .60 AR Stage 3 turbine .63 AR A2W I/C, 40 LB/HR MS2E, 60-2 Direct Coil Control 3" Exh, AEM W/B O2 Underdrive Alt. and P/S Pulleys, Vented Rear Discs, .034 Booster. 3.07 diffs 1st Gear Start 90 300CE 104.980 Milled & ported head, 10.3:1 compression 197° intake cam w/20° advancer Tuned CIS ECU 4° ignition advance PCS TCM2000, built 722.6 600W networked suction fan Sportline sway bars V8 rear subframe, Quaife ATB 3.06 diff
|
 |
| Bookmarks |
|
|
Linear Mode
