Author Topic: Question about reassembly.  (Read 1248 times)

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Offline Scooterboy

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Question about reassembly.
« on: November 02, 2007, 05:52:57 AM »
Hello, Currently my 71 Cb750 is all in pieces as I pulled it all the way down to the frame to have the frame repainted and the engine gone through.  Now when I disassembled it I took the engine out last and it was kind of a pain because there wasn't really anything to hold the frame down while i maneuvered it out.

So here is my question: When I put it back together Is it better to put the engine back first or wait until it is a rolling chassis and lock the front wheel down in a lift so it can't move.

Your experience and advise is greatly appreciated.

Offline KB02

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Re: Question about reassembly.
« Reply #1 on: November 02, 2007, 06:04:19 AM »
One technique that has been used by many on these boards is to lie the engine on it's side and then lower the frame down onto in. Straighten up the engine/frame assembly and then bolt everything else back on.
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Offline jtb

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Re: Question about reassembly.
« Reply #2 on: November 02, 2007, 06:12:36 AM »
One technique that has been used by many on these boards is to lie the engine on it's side and then lower the frame down onto in. Straighten up the engine/frame assembly and then bolt everything else back on.

After having used both methods, I recommend this one, much easier to do, and definitely better for your freshly painted frame. :) :)
1977 CB750F
1985 V65 Sabre
1986 VFR 750 (gone but missed greatly)

Offline spitfire

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Re: Question about reassembly.
« Reply #3 on: November 02, 2007, 06:46:07 AM »
Drop the frame onto the engine, soooo easy, see tricks and tips section.

Cheers

Den
Wirral UK
1976 CB750F1 bought new in 76
1977 CB750F2: Restoration started
1964 BSA A65R: Waiting restoration
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Offline UnCrash

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Re: Question about reassembly.
« Reply #4 on: November 02, 2007, 06:48:14 AM »
I'll be doing this this winter as well.

Could you recommend if the tires should be on before or after?

Thanks
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Offline jtb

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Re: Question about reassembly.
« Reply #5 on: November 02, 2007, 06:55:25 AM »
If you're going to lay the engine on its side and drop the frame on, definitely after.  I had the engine laying on a wooden platform about 12" high.  once the frame and engine were secured, I pivoted it right side up.  Then came triple tree, forks, swing arm, etc.  Really much easier.
1977 CB750F
1985 V65 Sabre
1986 VFR 750 (gone but missed greatly)

Offline JMURACN

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Re: Question about reassembly.
« Reply #6 on: November 02, 2007, 09:30:29 AM »
If you're going to lay the engine on its side and drop the frame on, definitely after.  I had the engine laying on a wooden platform about 12" high.  once the frame and engine were secured, I pivoted it right side up.  Then came triple tree, forks, swing arm, etc.  Really much easier.

+1

Offline UnCrash

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Re: Question about reassembly.
« Reply #7 on: November 02, 2007, 10:14:59 AM »
 ;D  Excellent

Thanks!
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