Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: SteadyEddie on January 17, 2010, 12:13:56 PM

Title: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on January 17, 2010, 12:13:56 PM
The engine has been my focus point since stripping the bike and I am glad to say it is finally finished.
Replacement gearbox.
New camchain
new rings
new seals
new fastners
plus lots of other bits and pieces
total paint and polish

As it came out of the frame.
(http://i136.photobucket.com/albums/q173/sP3nc3r1_photos/engine/3.jpg)

Stripped and painted
(http://i136.photobucket.com/albums/q173/sP3nc3r1_photos/engine/5.jpg)

Assembly
(http://i136.photobucket.com/albums/q173/sP3nc3r1_photos/engine/6.jpg)

Cleaning and polishing as I go.
(http://i136.photobucket.com/albums/q173/sP3nc3r1_photos/engine/b4andafterrocker.jpg)

Ending up with this............
(http://i136.photobucket.com/albums/q173/sP3nc3r1_photos/engine/rightside.jpg)

(http://i136.photobucket.com/albums/q173/sP3nc3r1_photos/engine/leftside.jpg)

Looks all to easy in a few pics !
Now for the rest of the bike which is now totally stripped since this pic and a few bits have been made ready.  ;D

(http://i136.photobucket.com/albums/q173/sP3nc3r1_photos/engineout.jpg)



Title: Re: My K6 / K7 mongrel is coming along
Post by: Spitfire on January 17, 2010, 12:19:11 PM
Those before and after pics really make it all worth while don't they !

Cheers

Den
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on January 17, 2010, 12:48:45 PM
Yes Den, they do. Thats the beauty of digital cameras, I took hundreds of images when stripping the bike to make sure I know how it goes back together, and as you say it is nice to do the before and after shots.
Title: Re: My K6 / K7 mongrel is coming along
Post by: pae on January 17, 2010, 04:51:38 PM
Looking good, lovely finish on the engine.

Phil
Title: Re: My K6 / K7 mongrel is coming along
Post by: Spitfire on January 17, 2010, 05:28:45 PM
Yes that's the right way, lots of photos while you are stripping it, lots of zip loc bags and loads of shelf space !

Cheers

Den
Title: Re: My K6 / K7 mongrel is coming along
Post by: Seamus on January 17, 2010, 07:20:55 PM
You forgot the lots of patience  ;D

Looking good. I did the same with mine and tried to photograph everything, including the holes in the crankcases.  :(

Surprising how long the frame looks without the motor in.

Keep the pictures coming.

Cheers

Seamus
Title: Re: My K6 / K7 mongrel is coming along
Post by: Yoshi823 on January 17, 2010, 07:52:10 PM
That front tyre in the rolling chassis picture is best replaced with a 4.10x19 as the one fitted looks undersize.

Nice finish on the engine. The polished cam cover contrasts nicely with the rest of the engine.
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on January 18, 2010, 12:41:43 AM
Thanks for the comments all, just got in from the shed, another few hours logged.
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on January 18, 2010, 08:10:22 PM
Started cleaning up the frame today, oh how I laughed when my screwdriver popped straight through one of the lower frame rails, the qhole thing is rotten, guess it will go on hold for now until i can source a seconhand solid frame......
Title: Re: My K6 / K7 mongrel is coming along
Post by: Spitfire on January 19, 2010, 09:54:55 AM
Now that is bad news, I had to have some weld repairs done to the front down tubes on my F1, I must admit I would have the frame surveyed before ditching it as the one you buy may be just as bad.

Cheers

Den
Title: Re: My K6 / K7 mongrel is coming along
Post by: Seamus on January 19, 2010, 12:11:49 PM
I would agree with Den. Have a good go at the bad bits and see how bad it actually is. I am sure it could be repaired, but this obviously depends on the state of the chassis.

Post some pictures

Good luck

Seamus
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on January 20, 2010, 10:54:16 PM
I will not be up the shed until the weekend to get any pics of the rot on the frame as work is keeping me away, bloomin inconvinience this work lark.
Title: Re: My K6 / K7 mongrel is coming along
Post by: UK Pete on January 23, 2010, 08:18:49 AM
That Engine looks beautiful, i hope mine looks as good when finished, bad news about your frame, you may be luck and the rot is just in the one place, if so it would be worth repairing with a new peice of tube,
Pete
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on April 11, 2010, 11:27:12 PM
Frame and engine complete, time to test the engine.
http://www.youtube.com/watch?v=qQyYoezSE0w (http://www.youtube.com/watch?v=qQyYoezSE0w)
Title: Re: My K6 / K7 mongrel is coming along
Post by: Yoshi823 on April 11, 2010, 11:48:34 PM
Boy oh boy did the sound of that engine bring back memories...

The sound of Peter's 750K1 recently was nice, but the sound of a rorty exhaust on a Honda 4 will stay with me to the end of my days.
Title: Re: My K6 / K7 mongrel is coming along
Post by: Spitfire on April 12, 2010, 08:46:00 AM
Sounds good, but what did you do with the frame in the end or did I miss that one !

Cheers

Den
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on April 12, 2010, 09:07:54 PM
Spitfire, I welded the frame myself after consulting an engineer friend who told me I was making a mountain out of a molehill, not the prettiest of finishes but she is now back to full strength.
Title: Re: My K6 / K7 mongrel is coming along
Post by: Spitfire on April 13, 2010, 08:43:05 AM
That's excellent, good job.

Cheers

Den
Title: Re: My K6 / K7 mongrel is coming along
Post by: honda-san on April 14, 2010, 12:58:13 PM
Well done for perservering.

Great finish on the engine - what paint did you use, or is at some kind of satin powder coat?

Title: Re: My K6 / K7 mongrel is coming along
Post by: UK Pete on April 14, 2010, 08:16:49 PM
Very nice i bet your well pleased with your progress, the engine started easily and sounds nice , well done
Pete
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on April 15, 2010, 07:54:07 AM
Honda - San, it is a mixture of PJ1 fast black and believe it or not Halfords satin Black as used by my brother on his superb restorations of seventies MX bikes.
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on May 12, 2010, 03:36:16 PM
Picked up my wheels today after a rebuild, I had alloy rims and stainless spokes fitted by Hagons, they done a nice job. On the way home from Hagons I stopped at the tyre dealer who fitted Avon Roadriders AM26's, I am well pleased with them. Over the next few days i can put the forks in complete with new tubes from David Silver and get her back on her wheels.
(http://i136.photobucket.com/albums/q173/sP3nc3r1_photos/wheels1.jpg)

(http://i136.photobucket.com/albums/q173/sP3nc3r1_photos/wheels2.jpg)
Title: Re: My K6 / K7 mongrel is coming along
Post by: Stewartgh on May 12, 2010, 04:53:59 PM
Wow those wheels look amazing, do you mind me asking how much the rebuild cost you, both wheels on my F1 are in need of the same treatment.... looking like a great job, good work.... I so wish I had a garage, rained off the driveway again today trying to fix my wiring!

Don't worry Eddie, I found all I need on their web site.....
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on May 12, 2010, 06:00:07 PM
Stewart, one thing to bear in mind is they have a 6 week waiting list at the moment although I managed to persuade them to do mine quicker on an emergency build at a premium of
Title: Re: My K6 / K7 mongrel is coming along
Post by: UK Pete on May 12, 2010, 09:56:43 PM
Great looking wheels, and nice tyres, i have the same tyres on my F2, one day i will finish the bike and be able to see how the tyres perform
Pete
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on May 31, 2010, 01:26:04 AM
Wheels are on as are new shocks, fork tubes, chain and sprockets etc,etc,etc. Altered the marshall deeptone 4 into 1 to look like a Piper from the seventies. Ordered a pair of clip ons today, the light is shining at the end of the tunnel, it's been a long tunnel !

(http://i136.photobucket.com/albums/q173/sP3nc3r1_photos/30thmay2010.jpg)
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteveD CB500K0 on May 31, 2010, 08:59:41 AM
70's Piper exhausts flipped up at the rear (they were fixed to the rear footrest mountings.

Like my avatar.
Title: Re: My K6 / K7 mongrel is coming along
Post by: SteadyEddie on May 31, 2010, 09:49:25 AM
Your not wrong Steve, I tried various angles for the tail section and just preffered this angle, what I was getting at about the Piper look was just a straight section as opposed to a cone type section, there was nothing wrong with the Marshall tail section but it was like a great big traffic cone shoved on the end of the pipe.
Title: Re: My K6 / K7 mongrel is coming along
Post by: UK Pete on May 31, 2010, 10:09:02 AM
nice work Eddie, you are nearly there, how did you make the pipe?
pete
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