transmission preventing motor from turning???

Information on the naturally-aspirated KA24E and KA24DE engines.
blackmagic
Posts: 468
Joined: Mon Feb 12, 2007 3:28 pm
Car: 1995 nissan 240sx se w/ rb26dett
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Ok so i just finished my daily driver automatic kade and went to start it and one click then nothing. checked to see if the motor would turn by hand and it wont its stuck. The motor isnt locked up cause it was running perfect before pulled from my friends 96. and i could turn the motor by hand before i put the transmission on. I was having problems getting the transmission on by myself being its a sludge box but somhow managed to get it on and like a dumb *** i forgot to check if it would turn before droping the motor in. so now heres the real question what could be preventing it from turning. all i did was bolt the flex plate on. pull the manual pilot bushing and put an automatic pilot bushing in. bolted up the torque converter then slid the transmission on. The transmission and torque converter are from a 93 ka but im sure that doesnt make a diffrence. i mean everything bolted up. just in my case mabe not right. thanks for helping me out guys. O and just to let everyone know i have been searching on nico, google, yahoo, and even zilvia for this answer for about a week now. im at my last resort.


liquid_cool
Posts: 1700
Joined: Sat Jul 05, 2008 3:02 am
Car: 1990 Nissan 240SX KA24DE-T swap 8.6:1cr, duelsprings, ti retainers,supertech pistons, K1 H-beems balanced internals ect ect

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if you cant turn the motor by hand at all even with a prybar..then you need to separate the motor and transmission again..after thats done..try turning the motor..if it turns....then thats not the issue....then try poping the transmission pan off and looking for metal chunks in it and to inspect it to see if there is rust ect ...thats what i wuld do..at least then you will know your problem.

blackmagic
Posts: 468
Joined: Mon Feb 12, 2007 3:28 pm
Car: 1995 nissan 240sx se w/ rb26dett
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alright i think i found the problem when i take the starter off the motor spins freely. when the starter is back on it either doesnt spin or it spins and makes alot of grinding noise. i think i put the flex plate on backwards anyone have a picture of a flexplate on the motor. this was the first time i have messed with an automatic motor. I was also rushing to get it done so i guess i deserve this headache

liquid_cool
Posts: 1700
Joined: Sat Jul 05, 2008 3:02 am
Car: 1990 Nissan 240SX KA24DE-T swap 8.6:1cr, duelsprings, ti retainers,supertech pistons, K1 H-beems balanced internals ect ect

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does the starter spin? or is the (bedix) that little gear that pops out stuck in position?

blackmagic
Posts: 468
Joined: Mon Feb 12, 2007 3:28 pm
Car: 1995 nissan 240sx se w/ rb26dett
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one starter I know for sure does not work. The other I wanst sure of cause it came off the old motor that I never saw running. The other starter came off the motor I have in the car now that was running great and started perfect. all i need is a picture of a flex plate bolted the the motor and then i can trouble shoot myself after that. I have been looking for a picture for about a week now and still no luck.

liquid_cool
Posts: 1700
Joined: Sat Jul 05, 2008 3:02 am
Car: 1990 Nissan 240SX KA24DE-T swap 8.6:1cr, duelsprings, ti retainers,supertech pistons, K1 H-beems balanced internals ect ect

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if your starter spins and the bendix pops out..then separate the transmission from the motor...if the motor spins not conected to the transmission ..and the transmission spins not conected to the motor..then you know your issue for shure...untill ya do this..you will be searchin for a picture for no reason..and besides..ya have to take it back apart anyways..i wish ya luck..and please keep us posted.

liquid_cool
Posts: 1700
Joined: Sat Jul 05, 2008 3:02 am
Car: 1990 Nissan 240SX KA24DE-T swap 8.6:1cr, duelsprings, ti retainers,supertech pistons, K1 H-beems balanced internals ect ect

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any updates?

blackmagic
Posts: 468
Joined: Mon Feb 12, 2007 3:28 pm
Car: 1995 nissan 240sx se w/ rb26dett
Contact:

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yeah i didnt pull the transmission out cause I find it pointless to pull the transmission out without know what the problem is exactly. I know it has somthing to do with the flex plate or the starter nothing else. So i sprayed a little black paint on the end of the starter and put it in the car then manually rotated the crank a few times pulled the starter and found that the starter wasnt going in enough so im at that right now. I havnt worked on it in a couple days due to fixing my dd sr20 s14. I do have a question though. The motor i had was a 96 ka24de I used a 93 ka24de automatic transmission bellhousing and flex plate are they all the same. I know the starters are. I may not have made my 1st post clear what I mean when I say the starter is preventing the motor to spin i mean the starter and flexplate are not aligned.

liquid_cool
Posts: 1700
Joined: Sat Jul 05, 2008 3:02 am
Car: 1990 Nissan 240SX KA24DE-T swap 8.6:1cr, duelsprings, ti retainers,supertech pistons, K1 H-beems balanced internals ect ect

Post

if thats the case and its the starter preventing the flexplate from spinning..then a modification comes to mind...think of making one of your starter mounting hole's like a sliding bracket....so you can adjust the distance to the flexplate.from side to side..not in and out....you might have to grind out the larger hole where the starter fits into just enough to one side to let it move from side to side...ps..the hole to make adjustible..should be one you can make a bolt go all the way throu the block or braket with a nut and lock washer on the otherside...like your altinator adjustment bracket...look before you leep thou...make shure you can do this with what ya have at home and reaserch if that transmission will work with your modle year...good luck bro what ever ya decide.

blackmagic
Posts: 468
Joined: Mon Feb 12, 2007 3:28 pm
Car: 1995 nissan 240sx se w/ rb26dett
Contact:

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yeh right after i posted that i went at the car with a grinder got the starter to spin the motor. The problem now lies in timing ill research that cause i havnt messed with a ka in a few years. I know how to set sr timing blindfold and yes i do have all the right tools i have rebuild about 4 motors never had a problem and i come to this automatic b.s. Im almost ready to just do a 5 speed swap i have 3 trannys layin in the garage. thanks for the help and ill keep you updated.


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