S2000 Under The Hood S2000 Technical and Mechanical discussions.

Ap1 Tranny

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Old 11-10-2010, 05:06 PM
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Originally Posted by joes sled 2000,Nov 10 2010, 09:35 AM
I have seen plenty of used ap1 trannys for around $700.00 . A couple of gearsets and a shift fork will cost more than that !
But in the end you will still have a used transmission of unknown condition.
I say the $700 is better spent on buying new parts to rebuild (if yours is not in too bad shape) You can buy all the parts to completely rebuild an AP1 (bearings, synchros and seals) for about $1200. $500 difference is worth it to me for the peace of mind knowing that the transmission I install is in "good as new" condition and not a waste of $700 and time and effort installing a tranny that may fail tomorrow. Even if they offer a warrantee I prefer to just do it right the first time with new parts and not have to keep removing and installing transmissions because I got a lemon for my $700 off ebay. My $0.02
Old 11-10-2010, 05:22 PM
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If you disassemble and inspect your transmission you can get away even cheaper if you can rule out bearings or certain synchros and only buy what you really need. For example in my transmission all I really needed to buy was all the synchros, and shift forks (I really did not need any bearings but I replaced them anyway since I had it apart) If I had just bought what I NEEDED it would have been $1005. That is $305 more for a transmission that I know would serve me as long or longer than the current one has.
Old 11-10-2010, 06:05 PM
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Originally Posted by ronnuke,Nov 10 2010, 04:34 AM
You have to buy the entire 2nd gearset (which includes a new 2nd gear and 1st and 2nd synchros)
Part number: 23432-PCY-316
so i'll have to get the 1st & 2nd gear set right?
First Gear:
P/N 23421-PCY-010, H/C 7596869
Second Gear Set:
P/N 23432-PCY-316, H/C 7596893
Old 11-13-2010, 10:09 AM
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No, you probably won't need a new 1st gear unless you are having issues with that gear. The 2nd gearset has both the 1st and 2nd gear synchros in it.

P/N 23432-PCY-316, H/C 7596893 is all you will need if just replacing the synchros for 1st and 2nd gear.
Old 11-13-2010, 02:45 PM
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oh ok thnx alot
Old 11-13-2010, 04:01 PM
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Originally Posted by ronnuke,Nov 9 2010, 01:26 PM
I would say if you can remove and replace the tranny you can rebuild it too.
I see you have been very helpfull and all but ...

I know people who can haul a dresser up and down five flights of stairs but have no clue on how to put a bed together. Know what I mean?

Old 11-14-2010, 11:20 AM
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I would say that if you can successfully remove and replace your own transmission, it is not that far a reach to rebuild it with proper tools and instruction (service manual).
This is my first time rebuilding a transmission and so far it has been pretty self explanatory, following the service manual and using common sense. When I am finished I will post a DIY with pictures and observations on helpful tricks I learned by doing this maintenance myself. I did have to buy some of the "special tools" from Honda and I will detail the extra tools I recommend, but overall I would not say it is too difficult or costly for the average mechanically inclined person.
Old 11-14-2010, 12:08 PM
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Originally Posted by PWRMKR,Nov 13 2010, 09:01 PM
I see you have been very helpfull and all but ...

I know people who can haul a dresser up and down five flights of stairs but have no clue on how to put a bed together. Know what I mean?

Ding Ding .... we have a winner !!! Its actually much harder to rebuild a tranny than many people on this board think . One little slip up and everything inside the tranny is junk ! Removing the tranny is a cake walk compared to rebuilding it ! Believe that !!!!
Old 11-14-2010, 01:45 PM
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Originally Posted by joes sled 2000,Nov 14 2010, 04:08 PM
Ding Ding .... we have a winner !!! Its actually much harder to rebuild a tranny than many people on this board think . One little slip up and everything inside the tranny is junk ! Removing the tranny is a cake walk compared to rebuilding it ! Believe that !!!!
What makes you say that? Have you tried to rebuild one and failed?

So far I have not had any difficulty with the rebuild (other than waiting on parts that I didn't know I needed until I disassembled). It is a piece of cake with cream frosting if you have patience, common sense, a smidge of mechanical aptitude, and proper tools and service manual.

Stand by....after I am finished I will post a laymans terms transmission rebuild with pics that should encourage anyone with above mentioned qualities to DIY.
Old 11-14-2010, 02:22 PM
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Originally Posted by ronnuke,Nov 14 2010, 06:45 PM
What makes you say that? Have you tried to rebuild one and failed?

So far I have not had any difficulty with the rebuild (other than waiting on parts that I didn't know I needed until I disassembled). It is a piece of cake with cream frosting if you have patience, common sense, a smidge of mechanical aptitude, and proper tools and service manual.

Stand by....after I am finished I will post a laymans terms transmission rebuild with pics that should encourage anyone with above mentioned qualities to DIY.
You are a hero ! Best of luck .


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