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-   -   700r4 internal parts damage (http://www.hotrodders.com/forum/700r4-internal-parts-damage-213908.html)

mafiacustomz 02-03-2012 04:21 PM

700r4 internal parts damage
 
im rebuilding my 700r4 i pulled the input drom out and it looks like it was on a lathe their looks to be needle bearings sitting on the sun gear what i want to know dows this mean the trans is shot i cant use them parts now

tnsmith10 02-03-2012 06:10 PM

Quote:

Originally Posted by mafiacustomz
im rebuilding my 700r4 i pulled the input drom out and it looks like it was on a lathe their looks to be needle bearings sitting on the sun gear what i want to know dows this mean the trans is shot i cant use them parts now

sorry guy, but with the limited info you provided and no pics to show what youre talking about, theres no way of telling you whats happened or what to do about it.

mafiacustomz 02-03-2012 06:30 PM

their are needle bearings from somewhere in between the sun gear and input drum and it cut about 1/32 of a inch maybe less out of the input drum do i have to replace the input drum or can i use it

mafiacustomz 02-03-2012 06:44 PM

3 Attachment(s)
he ill try to post these pics

tnsmith10 02-04-2012 06:18 AM

you need to dig deeper. theres a front planetary that goes under the input drum. either youre seeing needles from the roller bearings from the planet or a roller type washer has failed.
as far as what you see on the input drum. it does look pretty gouged but, as long as what you see is on the outside, i dont think its that big of a deal to reuse. maybe just hit it with some sand paper to smooth it out.

mafiacustomz 02-04-2012 07:01 AM

its not as bad as it looks you cant realy feel how deep it is its super shallow i didnt wat to take the trans down any more until i made sure i can still use these parts. I dont know where these needle bearing came from today i will go take the input gear out thin the sun gear and hope to see just a bad bearing that i can replace.

mafiacustomz 02-04-2012 03:03 PM

2 Attachment(s)
update look at these sun gears its the input and small sun gear

if these are like that what is the rest of it going to look like and i still dont know where these small needle bearings came from P.S. them gears are $63 for both of them

Crosley 02-04-2012 03:35 PM

You need to get the trans fully apart. Then clean up the parts , cept for the obvious blown up stuff.

It may be cheaper to buy a core trans for replacement parts or start over with a 2nd core to build.

mafiacustomz 02-04-2012 04:32 PM

yea they want like 800 for a trans around here i dont know if i can get a blown trans from any junk year but i do have a 86 700r4 trans in my car now i guess im going to have to make a franken trans

mafiacustomz 02-04-2012 05:48 PM

ok i have the transmission all apart and still cant find any needle bearings or needle bearing case where did these come from can they get from the torque converter into the trans

mafiacustomz 02-04-2012 06:39 PM

3 Attachment(s)
update here are some more picks of that sun gear cant find any needle bearing cup

mafiacustomz 02-04-2012 08:18 PM

i think the needle bearings came out of the gear in the sun gear that was broke in half

tnsmith10 02-05-2012 03:09 PM

that would be the front planetary. that is where the needle bearings came from.

mafiacustomz 02-05-2012 05:00 PM

yep after taking the trans all apart that is the only thing wrong them gears so i will rebuild what i can thin pull the 86 700r4 out of my car and get them gears out of their

mafiacustomz 02-06-2012 09:47 PM

ok i realy need help now i was looking online and found that i cant switch the 82-86 700r4 front planetary into my 91 700r4 any one know if thats right i hope not low on cash and the longer it stays in pieces the more likly i will lose something.


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