GUIDE TO INSTALLING B13/14 GA15 MOTOR USING B11 MANUAL TRANSMISSION Alright guys, so this is the conversion I did on my car. I traded a guy my e15s motor for his b13 ga15ds motor. The conversion was pretty simple and didn't really cost much since I swapped the engines.
Step 1:
All electricals and cables were removed from the engine. E15s don't have much of that so no problems there.
Step 2:
The two axles were removed from the car. The engine was then lifted very slightly using a chain block. The battery bracket and the gearbox mount was removed. The two torque mounts from the from and rear of the engine was then unbolted from the engine side. The bracket of the radiator panel that holds the front torque mount was removed for clearance. The engine mount was unbolted and the engine was then lifted out.
Step 3:
The engine and manual transmission were separated from each other. The flywheel, clutch and pressure plate was left on the engine as that will not be able to be reused or at least the flywheel and pressure plate.
Step 4:
The e15s was sent to the other guy and the b13 ga15ds was collected. To bolt the e15s gearbox (mine is a 5 speed) you would need to use the b13 flywheel, clutch and pressure plate. All of which I had to get since the engine I got was an automatic engine.
flywheel-200 foreign used
clutch- free (padna) exedy but costs about 220
pressure plate- 245 exedy by reputable in couva
release bearing - 200 nsk by reputable in couva
Flywheel was installed on the engine and clutch and pressure plate assembled on the flywheel. The release bearing was installed in the gearbox and now it was time to mount them together.
Step 5:
The gearbox previously used 12 bolts to bolt to the engine, but the b13 ga15ds required 14 bolts. No troubles there really. Went by a mechanic padna and got the correct size bolts that I needed.
The gearbox was then lined up again the engine and it bolted in perfectly. It was not time to reinstall the engine. Since the rear mount, the rear torque mount and the gearbox mount all lie on the gearbox or brackets bolted to the gearbox, none of these needed to be modified to work. They simply bolted it. The b13 engine mount fitted in the exact spot as the b11 engine mount but required some spacers. The aluminum ga16de mount (from the b13 gts) would not require any spacers as that mount is a bit thicker. The front torque mount bracket requires some modification to work which I have not done as yet so I guess that will be updated in time.
Step 6:
Once everything is bolted in properly, the axles can then be reinstalled. for the electrical I reused the b11 engine harness to power up the b13 carburetor and coil. The accelerator cable is also different so I used a long bicycle cable (it works, trust me on this one. Installed one on one of my uncle's cars and was used for about 5 years till the car was sold) and installed the bare cable in the black cable housing of the b11 cable. Works pretty decent too.
The exhaust is slightly different, so I cut my original exhaust and had to carry the car by an exhaust man to weld the exhaust back.
Also, radiator hoses are custom. I'm not sure what radiator I have in the car and I had to do some custom work on the radiator hoses.
**note** the b14 ga15de fuel injected engine, would require additional wiring and the installation of a high pressure fuel pump.
Pictures:
before (was a bit dirty)
after