Help Fast.....transmission problems

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nismofan14
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Joined: Fri Nov 22, 2002 5:55 am

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Just swapped motors this weekend. When i reinstalled the transmission, it wouldn't slide on the whole way. Everything is together correctly, I have wondered if i did not push the pilot bushing in far enough? How far does it go in? I have it flush with the hole, is this correct? Also could it be the flywheel is slightly bent? I am pulling the flywheel off the new KA and the old one to make sure. Anywho, I need it fixed by friday and any help is greatly appreciated. Thanx.


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Cloudedone
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I had some trouble getting a transmission into a ka in a 91 hatchback, spent an hour trying to get it to line up and go all the way in, i took it all the way out, inspected it, and everything was ok so i tried it again and it just worked perfect, i did put in a new pilot bearing, but this was so long ago i can't remember... maybe try taking it out and putting it back in again? also you can use a big screw driver on the flywheel to turn it and hopefully make the splines line up better.

Galen

nismofan14
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Joined: Fri Nov 22, 2002 5:55 am

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When the transmission is up and i spin the drive shaft it isn't catching the splines, dunno what is keeping it from sliding back on any farther. Does any one know far the pilot bushing is to go in?

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Cloudedone
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try getting out a tape measure and measuring the distance from the front mounting surface of the transmission to where the pilot bearing needs to be (you know right after the splines tapper down to where the pilot bushing sits) then find the measurement from the engine block to the backside of your pilot bushing, do the math and figure out if thats the problem...

nismofan14
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Joined: Fri Nov 22, 2002 5:55 am

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Yeah i was just getting to that, I am pretty sure that is the problem. The transmission isn't hitting or catching on anything else. The only thing i can think of is that it is the shaft on the transmission but i checked it to see if it was bent(even though they are pretty difficult to bend) but it is ok so it has to be the pilot bushing. Thanx for the input cloudedone.

yellow_jacket
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Joined: Mon Jan 13, 2003 4:43 pm
Car: 95 240sx

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Your other option is that the clutch disk is not lined up correctly or something is the wrong size(pilot bearing or size of input hole in clutch disk. If you have calipers check the sizes on everything.

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Cloudedone
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true yellow_jacket...

also you changed engines, is the new engine a used one? If so did it come off of a car with a Manual Trans or Auto Trans? My supra had a little adapter on the end of the crankshaft on automatic's, while it didn't have it on the manuals... so when putting a manual into an auto supra you have to remove the adapter...

nismofan14
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Joined: Fri Nov 22, 2002 5:55 am

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You know, I never ****** thought of that. It is used with only 5K. I need to call the guy i got it from to see what transmission was on it before. Is the adapter behind the flywheel? Anyhow to respond to yellow jacket, the bushing is factory and is the correct one, the clutch is act HD pressure plate and 4 puck disk. Everything is aligned correctly. I moved the pilot bushing back a bit and when my friend gets here we are gonna see if that was the problem. In the mean time, anyone have any more info about an adapter between the auto and manual? Thanx for the help.

yellow_jacket
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Car: 95 240sx

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It would be in the crank where the pilot bearing goes. The pilot bearing is in the crank on KA's if I remember right. I understand that you ordered all of this stuff for your car, but it doesn't always mean that they ordered it right or that it was even boxed right. It never hurts to slide the clutch disc onto the input shaft before you install it. It can save a lot of hassle sometimes. But if everything is the correct size, then it sounds like you are actually having trouble lining everything up. It just takes some elbow grease and patience.

nismofan14
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Joined: Fri Nov 22, 2002 5:55 am

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Sorry guys, I pulled a newbie stunt. I went to 240sx.org and found what i was lookin for. There is a spacer between the flywheel. Also it said that the mounting plate was different, but it isn't on my motor so i am gonna call the guy tomorrow mornin and see if it was attached to an automatic. Then i wil proceed to get the thing running. Can't wait. Thanx for the info guys.

nismofan14
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Joined: Fri Nov 22, 2002 5:55 am

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Well it seems that the pilot bushing was the culprit. After pushing it in a bit it went together with a tad bit of wiggling. Thanx for all the advise this webpage is the ****!

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Cloudedone
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Glad to help, have fun with it now!

nismofan14
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Joined: Fri Nov 22, 2002 5:55 am

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Yes i will have some fun now. Next step is to rebuild the old KA. Hopefully for a turbo (college permitting). I wish greddy would release the turbo kit they were working on....kinda curious to see some numbers.


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