ok this is for my friend. he has a 00 si and something went bad with his motor dont know but i kno he ordered another one. he got a jdm b16a2 longblock which i think is the same motor that is in the si. now his question is will this motor just go right in with no problems or will he have to make any modifications

 

im not positive but..i think just use the obd2 dist and ecu and everything else should be fine....if he wants to get rid of the obd1 dist cheap lmk....

 

did he order an obd1 motor or obd2?

 

a jdm b16a2?...it should still be called a b16a but sir2

 

+1

 

i think he ordered the obd1

 

in that case, you will just have to switch the longblocks out, and take your friends OBD2 injectors, alternator, and distributor off his blown engine, and put them on the OBD1 engine he bought. they are simply remove and replace, no modification necessary.

 

ok guys im the one with the swap.......apparently the problem im having is that my motor the blown one has a crank position sensor the one i bought does not have a place for that from my understanding the car wont run or start with out that being hooked up. if anyone knows what i need to know let me know......

 

ok, given that information, i think you have two feasible options:

1) the oil pump (aka front main seal housing, where the CFS - its actually a Crankshaft Fluctuation Sensor, it works like ABS brake systems do, the crank pulley has a bunch of ridges cut, when these spin around, they induce an electromagnetic field that the CFS reads as current, so if that current suddenly changes, the ECU knows something is TERRIBLY wrong)
-the bolt pattern for the oil pump housing should be the same on both motors
-if you remove the crank pulley, the timing belt, and the timing pulley, you can unbolt the housing
-replace the new motor's oil pump with your oil pump, and the CFS mounts on your oil pump

2) drop in the new motor, just like it is, without the CFS, then buy a $60-75 OBD2 to OBD1 ECU conversion harness, and replace your ECU with an OBD1 B16A.

both should yield a perfectly running car with no CELs, but it depends on how much time/effort/money you want to put in. the CFS/oil pump swap shouldnt take more than an hour, with engine re-timing, if you are a competent mechanic.

OTHER SUGGESTIONS:
while you have the other longblock out, i strongly recommend you install NEW:
-timing belt (and water pump if you can afford it)
-front and rear main seals, as they are very hard to do with motor in
-clutch & pressure plate, if you are getting close

lmk if u need diagrams of how to switch out the oil pump/CFS

 

Awesome .....thanks A Bunch...... The Mechanic Was Saying The Same Thing As Far As The Oil Pump Goes.... But He Told Me To Make Sure There Were No Other Alternatives.... The Ecu Was Not A Bad IDeal But The Oil Pump Things Is Easier For Him Since He Has It All Already...... I Bought A New Oil Pump And Im Using Parts From The Old Motor So Everythnig Should Be Good.... Also Timing Belt Water Pump And Seals Are All Being Replaced... Thanks Again...