Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
| articles:m104.98x_motor_swap_in_a_190e [2020/11/15 08:37] – john5788 | articles:m104.98x_motor_swap_in_a_190e [2021/12/23 01:22] (current) – [Original M103 Engine Removal] john5788 | ||
|---|---|---|---|
| Line 7: | Line 7: | ||
| <col sm=" | <col sm=" | ||
| ^ Time | 10 hours | | ^ Time | 10 hours | | ||
| - | ^ Cost | {{icon> | + | ^ Cost | {{icon> |
| ^ Difficulty | {{icon> | ^ Difficulty | {{icon> | ||
| ^ Parts Required | | | ^ Parts Required | | | ||
| Line 47: | Line 47: | ||
| - Disconnect main engine wiring and set aside | - Disconnect main engine wiring and set aside | ||
| - 4 prong CIS | - 4 prong CIS | ||
| - | | + | |
| - | - 2 prong temperature sensor | + | - 2 prong temperature sensor |
| - Cold start valve | - Cold start valve | ||
| - EHA | - EHA | ||
| Line 80: | Line 80: | ||
| - Unbolt engine mounts from chassis | - Unbolt engine mounts from chassis | ||
| - Secure engine to hoist and lift to remove. Remove with transmission attached. | - Secure engine to hoist and lift to remove. Remove with transmission attached. | ||
| + | |||
| + | \\ | ||
| < | < | ||
| <col sm=" | <col sm=" | ||
| - | <image shape=" | + | < |
| + | <image shape=" | ||
| + | < | ||
| + | </ | ||
| </ | </ | ||
| <col sm=" | <col sm=" | ||
| + | < | ||
| <image shape=" | <image shape=" | ||
| + | < | ||
| + | </ | ||
| + | </ | ||
| + | </ | ||
| + | |||
| + | ===== M104.980 Engine Install ===== | ||
| + | |||
| + | - Although it is possible to install the starter later, it is much easier to do it now. Bolt starter to the engine before lowering. | ||
| + | - Lower engine from hoist into engine bay and align motor mounts. Install without transmission. | ||
| + | - Connect fuel lines | ||
| + | - Main wiring harness | ||
| + | - See conversion task below | ||
| + | - Auxiliary wiring harness / Starter | ||
| + | - Set starter in place if it isn't already and reconnect wires. Bolt starter to transmission later. | ||
| + | - Connect oil pressure and oil level sensor wires | ||
| + | - Bolt wire bracket to rear of intake manifold (10mm) | ||
| + | - Other wires | ||
| + | - Connect alternator wires coming from right fender | ||
| + | - Connect 8 pin cruise control wires | ||
| + | - Connect rear crankshaft position sensor wire | ||
| + | - Connect front crankshaft position sensor under X11 diagnostic port | ||
| + | - Connect throttle cable | ||
| + | - Readjust idle position | ||
| + | - Connect power steering hoses | ||
| + | - Cooling System | ||
| + | - Connect heater return hose at back of engine | ||
| + | - Use W124 water reservoir overflow hose and 190E valve from thermostat cover | ||
| + | - Drop in radiator and connect hoses | ||
| + | - Vacuum system | ||
| + | - Use T connector at front vacuum nipple to connect to EZL and EGR/Smog pump solenoid | ||
| + | - Connect black striped white vacuum line from throttle body to check valve at fender behind headlight | ||
| + | - Connect brake booster | ||
| + | - Connect 3 vacuum line at rear of intake manifold | ||
| + | - The M104.98x introduces a new vacuum nipple. Use it however you wish or block it off. | ||
| + | - Fluid fill | ||
| + | - Power steering fluid | ||
| + | - Motor oil | ||
| + | - Coolant | ||
| + | - Brake fluid | ||
| + | - Charge AC | ||
| + | |||
| + | ===== Conversion Tasks ===== | ||
| + | ==== Engine support bracket ==== | ||
| + | |||
| + | < | ||
| + | <col sm=" | ||
| + | The original 190E engine support brackets must be brought over from the original motor as well as the motor mounts. Using the ones meant for a W124 will result in the engine sitting too high and interfere with hood closing | ||
| + | </ | ||
| + | <col sm=" | ||
| + | <col sm=" | ||
| + | < | ||
| + | {{ articles: | ||
| + | < | ||
| + | </ | ||
| + | </ | ||
| + | </ | ||
| + | ==== AC / Fuel Cooling Manifold ==== | ||
| + | |||
| + | < | ||
| + | <col sm=" | ||
| + | This part requires custom work from an A/C hose shop that can crimp new hoses. | ||
| + | |||
| + | The M104 A/C manifold' | ||
| + | |||
| + | Using the original 190E A/C manifold hoses not work entirely either. Mounting the 190E A/C manifold to the engine block introduces a problem where the A/C compressor can no longer be mounted to the accessory bracket. | ||
| + | |||
| + | A solution to fix this is to use the M104 A/C manifold (104 230 04 56 is NLA, aftermarket solution: Four Seasons 55586) and have both hoses custom made. The upper hose needs to be simply matched to the original length of the 190E part and the lower hose comes out to around 20cm (I would try 19.5cm for an easier fit. 20cm is slightly too long). An additional option is to have a high pressure diagnostic port installed as well since this port will be lost from switching to the M104 A/C manifold. | ||
| + | </ | ||
| + | <col sm=" | ||
| + | < | ||
| + | <col sm=" | ||
| + | < | ||
| + | {{ articles: | ||
| + | < | ||
| + | </ | ||
| + | </ | ||
| + | <col sm=" | ||
| + | < | ||
| + | {{ articles: | ||
| + | < | ||
| + | </ | ||
| + | </ | ||
| + | <col sm=" | ||
| + | < | ||
| + | {{ articles: | ||
| + | < | ||
| + | </ | ||
| + | </ | ||
| + | </ | ||
| + | </ | ||
| + | </ | ||
| + | ==== Alternator ==== | ||
| + | |||
| + | The wire mounting location differs on the alternator for a W124 versus a W201. The alternator for the W124 will work, but the wires will be kinked in an unnatural position. You will need to reclock the alternator by removing the screws holding the 2 halves of the alternator together and turning them to match how a 190E alternator looks. | ||
| + | ==== Wiring Harness ==== | ||
| + | The M104.98x now has an updated version of CIS that is not directly compatible with the older version. Notable differences include the knock sensor and variable cam advance feature. There are two approaches to getting the wiring completed for this swap. | ||
| + | |||
| + | === Borrow existing wiring from late model M103 motor === | ||
| + | |||
| + | < | ||
| + | <col sm=" | ||
| + | - Connect without modifications | ||
| + | - Connect 2 plugs at EZL | ||
| + | - Connect single pin connector by ignition coil | ||
| + | - Connect X92 ground wire | ||
| + | - Connect AC compressor wires (blue/ | ||
| + | - Connect IACV | ||
| + | - Connect throttle position wires (brown/ | ||
| + | - Connect common ground at intake manifold. Include wire from ground at ignition coil bracket. | ||
| + | - The following require some modification | ||
| + | - Open the idle microswitch connector plug and reverse the orientation of the wire. | ||
| + | - CIS 4 prong sensor is now located at the water pump so this needs to be lengthened. | ||
| + | - Pin 1 - Green/ white | ||
| + | - Pin 2 - Green / red | ||
| + | - Pin 3 - Brown | ||
| + | - Pin 4 - Brown / white | ||
| + | - Lengthen and connect the 3 prong connector under fuel distributor for airflow potentiometer (brown/ | ||
| + | - Lengthen and connect the 1 prong coolant temperature sensor (green) | ||
| + | - Lengthen and connect the 2 prong coolant temperature sensor (brown, green) | ||
| + | - Lengthen and connect cold start valve wire | ||
| + | </ | ||
| + | <col sm=" | ||
| + | < | ||
| + | {{ articles: | ||
| + | < | ||
| + | </ | ||
| + | </ | ||
| + | <col sm=" | ||
| + | < | ||
| + | {{ articles: | ||
| + | < | ||
| + | </ | ||
| + | </ | ||
| + | </ | ||
| + | |||
| + | === Complete wiring harness transplant === | ||
| + | |||
| + | //Not yet written// | ||
| + | ==== Fuel Supply Hose ==== | ||
| + | |||
| + | |||
| + | < | ||
| + | <col sm=" | ||
| + | In order to use the M104 CIS intake box, the supply line must be swapped. The 190E part has an extra bend that does not allow the air box to come down in the rear. | ||
| + | </ | ||
| + | <col sm=" | ||
| + | <col sm=" | ||
| + | < | ||
| + | <image shape=" | ||
| + | < | ||
| + | </ | ||
| </ | </ | ||
| </ | </ | ||