98 240 engine swap in an 89 240. how similar are they?

exkuisiteone · Apr 23rd, 2007, 10:18 AM

I am currently swapping an 98 ka motor into an 89. I put the trans and motor together and when i turn the crank there is a sound in the bell housing!! are these motors identical?
They look to be the same to myself but will the transmission from the 89 go on the 98 motor without any mods? SOMEBODY PLEASE HELP!!! The noise sound to me like the input shaft that goes into the torque converter is not all the way in but the trans and motor are bolted up tight. I used the same input shaft from the 98 and it went right into the 89 trans with no problem. I know the noise is not normal, i pulled it off and looked and put it back on and still the same thing. There is nothing wrong with the 89 trans but the 98 slips.
any help would be greatly appreciated guys!

**rogoman** · Apr 23rd, 2007, 09:13 PM

Does the '98 motor have the proper crankshaft pilot bushing for an A/T?

exkuisiteone · Apr 24th, 2007, 02:30 PM

yes both are auto motors.......
i got them together and in the car and I am now wiring them p. BUT the starter was the noise i was hearing. It was hitting the flywheel. i tried both starters and got the same noise. HELP!!!!!

**rogoman** · Apr 30th, 2007, 08:44 AM

Both starter and both torque plates (flywheels) should be the same for both engines. You need to remove the A/T along with the torque convertor. Now do a test fit of the starter to the engine block and observe the clearance between the torque plate teeth, front and back, and the starter housing.

There is a reinforcement plate that bolts on to the center of the torque plate on the outside; it may instead be between the crankshaft flange and the torque plate; if so, it'll cause interfenence with the starter.

exkuisiteone · May 1st, 2007, 12:03 AM

sweeeet i got it done now. just grinded down the starter...

180hero · May 1st, 2007, 12:55 AM

lol sorry to intervine with no real info... but that just sucks balls... but in all seriousness... how much did u get that 98 ka for??

BlackMage · May 1st, 2007, 06:10 PM

Don't forget your P/S, A/C and tech and a few other random things will have issues between the change from SOHC to DOHC. It's just like doing an SR swap into an 89

exkuisiteone · May 1st, 2007, 08:16 PM

i got the motor for free!!! trans and all! all it needed was a timing chain and guides.
that's it. I have a friend that works at nissan and hehas 3 240's with the sylvia conversion. other than that it runs GREAT

180SX-X · May 2nd, 2007, 11:14 PM

you grinded down the starter?!?

exkuisiteone · May 8th, 2007, 11:43 AM

ya the lip on the outer side towards the trans just a hair!!!!! not much. don't know why it was hitting but it runs and drives fine now