Author Topic: CB 750 Project 1 - Rides Well but a few tweaks needed  (Read 114156 times)

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Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #225 on: March 01, 2015, 03:43:12 PM »
Charlie,  can't really say as it wasn't more than 1/2 meter away from the shed wall. Maybe this photo might help.

Offline oldhatt45

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #226 on: March 01, 2015, 05:40:09 PM »
timbo,

That's a better picture!
What kind of light is it.  Making me think about possibly changing mine.  :) 
Looks like it mounted in about the same spot as the "Big" light.

Thanks,

Charlie

Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #227 on: March 01, 2015, 06:34:21 PM »
Charlie, I got it from DCC, its LED and it is mounted in the same place as the original but I have also cut down the guards.

Offline Retro Rocket

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #228 on: March 01, 2015, 07:00:05 PM »
They are called "lucas" tail lights... ;)
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Offline oldhatt45

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #229 on: March 01, 2015, 07:08:20 PM »
timbo and Retro.

Thanks.  Really do like that light.  :)
Also being LED it should reduce power draw a bit.

Thanks Again,

Charli

Offline martin99

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #230 on: March 02, 2015, 02:00:50 AM »
Thanks for the pics Timbo. Made my mind up for me, got one on order. :)
That one is the Lucas 564. The other one I had been toying with was the Lucas 679, but harder to find and a bit more expensive. I think my cut down fender may have made it sit a little too horizontally too-

http://www.ebay.co.uk/itm/BSA-A65-Rear-Light-and-Mounting-bracket-Lucas-679-Spitfire-Lightning-Hornet-/181676261552?pt=UK_Motorcycle_Parts_13&hash=item2a4cbfc0b0#ht_77wt_957
Build threads:
77 750F2 Refresh Project http://forums.sohc4.net/index.php?topic=144075.0
TRIBSA http://forums.sohc4.net/index.php/topic,160296.0.html

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Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #231 on: March 06, 2015, 10:53:00 PM »
I split the cases today on the stock engine for the fear of excess silicone in places I shouldn't be and I am glad I did. I would also like to say that I hate dickheads who work on an engine without knowing what they are doing and don't ask for help and then sell their half arsed effort trying to say that they are selling for financial reasons. The real reason is that they are too stupid to ask for help when they don't know the next step in the build. That's my $0.02 for today.

The good news is the silicone is coming of ok. Used a blade to remove the chuncky bits, scraped all the flat bits and the sprayed pleanty of gasket stripper which semi-disolved the rest to remove easy. Got 98% of the upper case clean and sprayed the lower snd letting sit.

Also all the gears and dogs look good bearings seem fine. Although there is evidence of chain breakage, the case has been repaired at the final drive and I think one of the drive chains has let go before as well.

However there are repairs required on the case. In 2 places there is damage  around threads where small pieces of the case have broken away. I am hoping to fix with JB weld which should be better than the silicone that was in there.

Here are a few photos of what not to do with silicone.

Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #232 on: March 17, 2015, 10:01:56 PM »
Still trying to remove the last of the of the silicone. The last 2% is the worst,  it is stuck in heaps of little scratches and not wanting to come out.

Did order some Venhill brake lines, just waiting on the adaptors for the solid lines.

Also got some plastiguage on the way and work out if I new new crank and rod bearings.

Offline calj737

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #233 on: March 18, 2015, 05:35:13 AM »
You might be better off baking that silicone out. What a mess! Just when I think I've got it bad, some poor bloke posts pics like this and then is ont feel so sorry for myself. But I surely do fo you, Timbo  :-\
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Offline knottedknickers

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #234 on: March 18, 2015, 07:23:15 AM »
Thanks for the pics Timbo. Made my mind up for me, got one on order. :)
That one is the Lucas 564. The other one I had been toying with was the Lucas 679, but harder to find and a bit more expensive.
I found 679s here (UK) and here (USA). Looks cool!
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Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #235 on: April 27, 2015, 10:26:08 PM »
Well I haven't done much on the engine, its been cold here and not much spare time and its got me frustrated.

However the paint work for the tank and guards is nearly finished, I called into the paint shop to discuss the stickers today and I am happy with the colour. it all still needs a rub down and a polish but you will see from the photos that it will look very nice once done.

Offline Davez134

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #236 on: April 27, 2015, 10:55:37 PM »
Very nice. I really like that fender too!

Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #237 on: April 28, 2015, 03:35:16 AM »
Thanks, this now means it is time to pull the finger out and get the engine work done.

Offline 70CB750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #238 on: April 28, 2015, 03:54:30 AM »
Looking good!
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Offline nvr2old

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #239 on: April 28, 2015, 09:51:40 AM »
The paint looks really nice.  The only thing I would change would be to move the Honda emblem and wing up higher on the tank.  If the top of the Honda letters followed the body line and the wings above that it would look more balanced.  Just my opinion.
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Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #240 on: April 30, 2015, 05:47:07 PM »
Finally got all the brake lines and the fittings, I ended up going to a bike shop nearby and getting Venhill lines and fittings. The issue I had was the adaptor fittings to connect to the hard lines and also the banjo bolts, seems most modern bikes are either 1.0mm or 1.5mm pitch and mine where all 1.25mm. but I eventually got all I needed and the black braided lines are very nice and give an almost stock look.

Offline 70CB750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #241 on: May 01, 2015, 03:36:07 AM »
Love the banjo bolt, looks great.
Prokop
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I love it when parts come together.

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Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #242 on: May 02, 2015, 02:35:33 PM »
Tried to get the brakes working but some reason the master cylinder is not pumping fluid into the lines.

So I pulled apart the MC in something was installed wrong and all seemed fine. so I then looked up schematics for the MC and I am certain that there is no other way to install the parts. Still no fluid , the banjo on the MC is bone dry.

Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #243 on: May 15, 2015, 11:47:55 PM »
I  starting to pull aprt the guages.  Its easier than i thought it would be.  The internals are very clean and the faces would be ok but I don't like the green faces. do new faces, bezels and maybe glass.

I read somewhere that somone  or maybe many people have put led strip lights in which I would like to do. What I cant work out is how to remove the dial/needle and are the rubbers sround the glass and bezel replacable?

Offline Terry in Australia

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #244 on: May 16, 2015, 05:50:58 PM »
Looking good Timbo, is your painter going to clearcoat over the stickers on the tank? If not, they'll only last until you spill some petrol on them. Cheers, Terry. ;D
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Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #245 on: May 16, 2015, 09:50:51 PM »
Terry, yes mate, clear over it all. He his doinv in between other stuff so its coming along slowly but the is quite good.

Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #246 on: May 28, 2015, 02:35:10 PM »
Well I managed to find time to pressure clean the cases, there is still some silicone in spots that I need to remove. Also noticed that someone at some point used bolts that where too long to assemble the cases and have broken a small piece of the case at the bottom of some of the threads. I am going to use JB Weld to fill it in.

The good news is that tank, guards and side covers are finished, I am very happy with the finished product. I will try to sit them on the frame this weekend and take some out side photos.

Offline SOHC4 Cafe Racer Fan

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #247 on: May 28, 2015, 02:37:06 PM »
The paint looks good, but it's hard to get a correct read on the color.  The blue in the first shot looks different (due to lighting) from the blue in the other shots.  What blue did you use?
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Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #248 on: May 28, 2015, 03:01:48 PM »
To be Honest I am not sure of the exact colour, I wanted planet blue metallic but I didn't have a sample. The guy I used had painted a cb750 before and still had some paint left over, enough to do my work. He showed me some photos of the previous tank he did, it looked great which he had matched from a side cover. I think it is close to sapphire blue.
« Last Edit: May 28, 2015, 03:13:32 PM by timbo750 »

Offline timbo750

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Re: CB 750 Project 1 - Getting engine ready for assembly
« Reply #249 on: June 03, 2015, 03:52:46 PM »
Wheeled the bike out of the shed and put the guards, tank and seat on, even happier now with paint finish and have a ne found inspiration to get things moving again.