Author Topic: Transmission repair  (Read 864 times)

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Offline fmctm1sw

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Transmission repair
« on: January 24, 2010, 01:09:21 PM »
To make a long story short, I decided to sell a '71 CB175 I have due to getting it all back together and finding the transmission won't shift into 3rd gear.  I just had this image of gears and springs and small parts flying all over the garage.  Anyway, I had a guy show up that ended up not interested but turns out he worked in a couple shops over the years.  He took a 400F transmission I have and showed me how it all worked.  I now figure either the dogs are worn off or a shift fork is bent.  He told me I didn't have to take the top end apart to do this.  After that, I did some digging around here and I found a long transmission thread that seems to confirm this.  So I'm getting more confident I can get it fixed.  I picked up a whole transmission off eBay.  I wanted to wait until I saw what exactly was wrong but I didn't have time since the auction was ending and I got a whole transmission off eBay for $40 shipped. 

But here's the question.  When I took my 400F apart, I snapped a number of bolts in the cases.  What is the best way to get those out?  Should I heat them with a torch and tap with a hammer at first?
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1973 CB350F
1973 CB350G
1975 CB550K
1983 GL650I
1973 CB750K3 (http://forums.sohc4.net/index.php?topic=92888.0)
1984 Kawasaki KLT-250 (AKA 3 wheeler of death)
1994 Honda TRX300
1999 Honda TRX250

Offline nobody

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Re: Transmission repair
« Reply #1 on: January 24, 2010, 04:31:13 PM »
I would probably soak them in pb spray for a day then try an extractor bit. Use some heat if they're still stubborn. I'm in the middle of rebuilding my 750 transmission and it's really not THAT hard, It's just time consuming.
74 cb750k

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Offline Don R

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Re: Transmission repair
« Reply #2 on: January 24, 2010, 08:49:03 PM »
Craftsman has some nice screw extractor sets.
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