12a install
11-15-06, 01:35 PM
#1
Rotary till i die!
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12a install
im looking for a 12a motor for my 1982 rx-7 ive never really done a motor swap and i was wondering how hard it is to put one in? or if anyone has a 12a for sale maybe a 13b? or if anyone can point me to a good guide for installing a motor.
11-15-06, 09:10 PM
#2
12a to 13b, the long and the short of it is that you need a 13b donor car of you want to keep the fuel injection.
many will offer simple solutions, "oh emmissions plug right in" they don't know the details
many will offer simple solutions, "oh emmissions plug right in" they don't know the details
11-16-06, 07:51 PM
#7
The best thing you can do before you start is take detailed pictures of everything.
As far as the manual, use it as a reference but not like a bible. There are alot of un-needed steps listed in the books.
#1 rule. Don't rush things, take your time doing the job and plan the job.
People have their own way of prepping a motor for R&R.
Here are some of my recommendations.
1). Unplug all of the electrical plugs from the harness that attach to the various sensors and relays, etc.. Then set the harness out of the way making sure that the harness will clear when the engine is hoisted up.
2). Drain the coolant and disconnect the top and bottom hoses from the radiator, then remove the fan clutch then the radiator and fan shroud.
3). Drain the oil and disconnect the oil cooler hoses from the engine and posistion them out of the way.
4). Disconnect the exhaust pipe that attaches to the bottom of the exhaust manifold.
5). Disconnect the various cables that attach to the carb. you may have to remove various external parts of the carb to remove these cables.
6). detach the fuel hoses from the carb
7). Remove the starter
8). remove the various bolts that hold the transmission to the engine
9). remove the attaching nuts that secure the engine mounts to the subframe
10). Attach chain from engine hoist to the front and rear engine lifting hooks that are attached to the motor and slowly lift the engine up. Double checking that you have unhooked all wiring from alt,rats nest,carb, etc... Lift up slightly then pull the motor forward seperating it from the trans. This is a multi-step process......
Forgot the 1st thing you do is disconnect the battery.
This is a rough draft and there may be other small things to look at and you can do the steps in any manner you see fit but this will give you a good idea.
Prep list for motor going in...
Always put a new water pump on the engine.
recommend if it is a used motor to replace the oil pan gasket, the rear main seal. Of course you will want to replace the intake and exhaust gaskets. Nows the time to replace upper, lower and heater hoses if they are old. Tune up time if the old ignition parts are worn out.
Recommend that you clean and degrease the engine bay before putting the replacement motor back in. Also clean the motor going in if it is greasy.
New coolant, t-stat and radiator cap if needed.
I may have left things out but you will get the idea..... The 1st one that you do is sometimes overwhelming but like I stated. Take pictures, don't be in a hurry and above all, Have fun doing the work yourself.......
When in doubt just post up or do a search on the problem you have encountered.
As far as the manual, use it as a reference but not like a bible. There are alot of un-needed steps listed in the books.
#1 rule. Don't rush things, take your time doing the job and plan the job.
People have their own way of prepping a motor for R&R.
Here are some of my recommendations.
1). Unplug all of the electrical plugs from the harness that attach to the various sensors and relays, etc.. Then set the harness out of the way making sure that the harness will clear when the engine is hoisted up.
2). Drain the coolant and disconnect the top and bottom hoses from the radiator, then remove the fan clutch then the radiator and fan shroud.
3). Drain the oil and disconnect the oil cooler hoses from the engine and posistion them out of the way.
4). Disconnect the exhaust pipe that attaches to the bottom of the exhaust manifold.
5). Disconnect the various cables that attach to the carb. you may have to remove various external parts of the carb to remove these cables.
6). detach the fuel hoses from the carb
7). Remove the starter
8). remove the various bolts that hold the transmission to the engine
9). remove the attaching nuts that secure the engine mounts to the subframe
10). Attach chain from engine hoist to the front and rear engine lifting hooks that are attached to the motor and slowly lift the engine up. Double checking that you have unhooked all wiring from alt,rats nest,carb, etc... Lift up slightly then pull the motor forward seperating it from the trans. This is a multi-step process......
Forgot the 1st thing you do is disconnect the battery.
This is a rough draft and there may be other small things to look at and you can do the steps in any manner you see fit but this will give you a good idea.
Prep list for motor going in...
Always put a new water pump on the engine.
recommend if it is a used motor to replace the oil pan gasket, the rear main seal. Of course you will want to replace the intake and exhaust gaskets. Nows the time to replace upper, lower and heater hoses if they are old. Tune up time if the old ignition parts are worn out.
Recommend that you clean and degrease the engine bay before putting the replacement motor back in. Also clean the motor going in if it is greasy.
New coolant, t-stat and radiator cap if needed.
I may have left things out but you will get the idea..... The 1st one that you do is sometimes overwhelming but like I stated. Take pictures, don't be in a hurry and above all, Have fun doing the work yourself.......
When in doubt just post up or do a search on the problem you have encountered.
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11-16-06, 09:13 PM
#10
love the braaaap
If you have a set of metric deep sockets and a large adjustable wrench and slight mechanical skills, you can swap a 12A for a 12A. I managed to pull apart all the bolt on parts to my original 12A engine and pull it out of the car using a 4x4 and some strength from myself and a friend in under 6 hours. I could probably do a whole motor swap in that amount of time with an engine hoist.
11-17-06, 04:41 AM
#11
I did the 12a to 12a swap in my apartment parking lot. Bought an Atkins rebuild. If I had to do it all over again I would. But instead, I would have taken lots of pictures!
Things that were a PITA :
1>lost the timing on the rebuild, I removed the pully to paint the timing mark, next time, I will use a piece of tape to highlight the timing mark, and leave the pulley on
2>labelled everything with white tape, the tape got greasy, the labels were useless
3>forgot how the carburator was hooked up (again, take pictures!)
4>the water pump housing to thermostat flange broke, had to find another water pump housing on e-bay
5>needed new o-rings for my beehive oil cooler
6>I should of been more careful when removing the oil line betweeen beehive and engine block.
7> nosey neighbors wanting to stop and talk!! totally useless advice, and they would talk about their fkkking! personal problems.
8> having to lock up my tools everytime I turned my back!
The removal and install itself was less than 3 hours, I rented an engine hoist. Getting parts and everything right took from halloween to thanksgiving. The weather didn't cooperate, and I didn't have a back up car.
Two years later, it is still almost better than sex when I turn the key!!
Things that were a PITA :
1>lost the timing on the rebuild, I removed the pully to paint the timing mark, next time, I will use a piece of tape to highlight the timing mark, and leave the pulley on
2>labelled everything with white tape, the tape got greasy, the labels were useless
3>forgot how the carburator was hooked up (again, take pictures!)
4>the water pump housing to thermostat flange broke, had to find another water pump housing on e-bay
5>needed new o-rings for my beehive oil cooler
6>I should of been more careful when removing the oil line betweeen beehive and engine block.
7> nosey neighbors wanting to stop and talk!! totally useless advice, and they would talk about their fkkking! personal problems.
8> having to lock up my tools everytime I turned my back!
The removal and install itself was less than 3 hours, I rented an engine hoist. Getting parts and everything right took from halloween to thanksgiving. The weather didn't cooperate, and I didn't have a back up car.
Two years later, it is still almost better than sex when I turn the key!!
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