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Author Topic: P38 Racer- 1974 CB550  (Read 30025 times)

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Offline SF

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Re: P38 Racer- 1974 CB550
« Reply #25 on: June 14, 2011, 11:54:13 AM »
VERY NICE WORK. LOOKIN FORWARD TO SEEING MORE WORK IN PROGRESS SHOTS.
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Offline burmashave

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Re: P38 Racer- 1974 CB550
« Reply #26 on: June 14, 2011, 12:09:29 PM »
Wow, Hannibal, you are a parts producing machine.
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Offline luceja

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Re: P38 Racer- 1974 CB550
« Reply #27 on: June 14, 2011, 12:16:17 PM »
What I would give for the skills (and equipment!) you are putting to use here. Seriously, great ideas and designs. This is already my favorite project to watch.
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'75 cb400f, '77 cb550f , CB160 road racer, '88 Hawk GT track bike, FZR400 race bike, and a bunch of old hondas in boxes.

Offline Bakeoff

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Re: P38 Racer- 1974 CB550
« Reply #28 on: June 14, 2011, 12:19:58 PM »
Way to make the rest of us look bad!  lol 

#$%*ing beautiful, man.
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Offline greenjeans

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Re: P38 Racer- 1974 CB550
« Reply #29 on: June 14, 2011, 02:16:08 PM »
Beautiful work Hannibal, just beautiful.   Now I know what I have to try with my back brake drum...thanks.
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Offline SKTP

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Re: P38 Racer- 1974 CB550
« Reply #30 on: June 14, 2011, 03:35:54 PM »
This is amazing!
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Offline wannabridin

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Re: P38 Racer- 1974 CB550
« Reply #31 on: June 15, 2011, 12:18:41 PM »
Great work indeed...  One concern, how are you going to change the filter without getting oil everywhere?
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Offline luceja

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Re: P38 Racer- 1974 CB550
« Reply #32 on: June 15, 2011, 12:32:38 PM »
Quote from: wannabINDUSTRIdin on June 15, 2011, 12:18:41 PM
Great work indeed...  One concern, how are you going to change the filter without getting oil everywhere?

my guess is removing the two bolts holding it in, but I'll let him speak on that!
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Offline wannabridin

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Re: P38 Racer- 1974 CB550
« Reply #33 on: June 15, 2011, 11:50:36 PM »
i thought about that too, but it just seems like quite an inconvenience, and what if he over tightens the oil filter?  it would be hard to get enough leverage against a free moving adapter.  but his work is quite good, so i'll wait for him to say!
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1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

-And if you don't do it this year, you'll be one year older when you do...

Offline Tete

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Re: P38 Racer- 1974 CB550
« Reply #34 on: June 16, 2011, 12:39:10 AM »
holy moly this thing is going to be the sssssssssssssssssshhhhhhhhhhhhhhhhhhiiiiiiiiiiiiiiiiiiiiiiiiiittttttttttttt!!! ;D

YES!!
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Offline fastbroshi

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Re: P38 Racer- 1974 CB550
« Reply #35 on: June 16, 2011, 12:55:36 AM »
Quote from: wannabINDUSTRIdin on June 15, 2011, 12:18:41 PM
Great work indeed...  One concern, how are you going to change the filter without getting oil everywhere?

I think he said the lines are flexible, so once the two fasteners are undone, the whole thing can swing and it can be oriented vertical
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Offline burmashave

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Re: P38 Racer- 1974 CB550
« Reply #36 on: June 16, 2011, 10:00:22 AM »
Hey Hannibal, I have some worthless trivia for you. Something I was watching on History mentioned the P38. The 38 in the P38 designation stood for the number flips on the opener that a soldier would need to make to open a can of C-rats.

Told ya it was worthless ;-)
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Quote from: SOHC Digger, RIP
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Offline ohiocaferacer

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Re: P38 Racer- 1974 CB550
« Reply #37 on: June 16, 2011, 11:49:22 AM »
Looking forward to seeing this build complete.......amazing work!
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Offline hapakev

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Re: P38 Racer- 1974 CB550
« Reply #38 on: June 16, 2011, 12:09:50 PM »
Quote from: burmashave on June 16, 2011, 10:00:22 AM
Hey Hannibal, I have some worthless trivia for you. Something I was watching on History mentioned the P38. The 38 in the P38 designation stood for the number flips on the opener that a soldier would need to make to open a can of C-rats.

Told ya it was worthless ;-)

So.........whats the "P" stand for?
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Offline Bankerdanny

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Re: P38 Racer- 1974 CB550
« Reply #39 on: June 16, 2011, 12:33:29 PM »
Quote from: wannabINDUSTRIdin on June 15, 2011, 11:50:36 PM
i thought about that too, but it just seems like quite an inconvenience, and what if he over tightens the oil filter?  it would be hard to get enough leverage against a free moving adapter.  but his work is quite good, so i'll wait for him to say!

I already asked him that, he says that yes, the two allen head bolts come out and then with the flexible lines you can swing the hole assembly out from the motor to unscrew the filter.

And if you require a lot of leverage to unscrew your filter you are overtightening it.
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Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline sky56

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Re: P38 Racer- 1974 CB550
« Reply #40 on: June 16, 2011, 09:56:23 PM »
Holy #$%* Hannibal you are one hell of a machinist/craftsman/whatever you want to label it. I look forward to seeing the progress on this one. Thanks for sharing
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Offline wannabridin

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Re: P38 Racer- 1974 CB550
« Reply #41 on: June 19, 2011, 07:11:11 PM »
Quote from: Bankerdanny on June 16, 2011, 12:33:29 PM
And if you require a lot of leverage to unscrew your filter you are overtightening it.

true, but sometimes filters have a nice way of getting too tight after heat cycles...  maybe it's due to a cheap rubber sealing o-ring sticking.  either way, he'll have no problems with it, it just like the simplicity of my front mount spin on filter on my 750 :-D 
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1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

-And if you don't do it this year, you'll be one year older when you do...

Offline Hannibal Smith

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Re: P38 Racer- 1974 CB550
« Reply #42 on: June 28, 2011, 10:03:22 AM »
Update- Engineering the front brake setup. I have done many of these, but the stock CB550 legs don't leave too many options.
For safety/rigidity, you need some minimums, and after some extensive mods, I have them.
Plan "A" was caliper mounted aft of the fork tube, but after crunching numbers and a mockup, the jog in the bracket would not be sufficient for safety.
Plan "B" was to run the caliper in front (as is stock) and with this configuration, I have plenty of room.
I did have to machine the forks, as you need certain tolerances for deflection when riding, especially these old forks- the buttons on the carrier need at least .075" clearance etc.
I will take pics when she is done.
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Offline tbarnhart

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Re: P38 Racer- 1974 CB550
« Reply #43 on: June 28, 2011, 04:59:01 PM »
Looking good.
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Offline Flying J

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Re: P38 Racer- 1974 CB550
« Reply #44 on: June 28, 2011, 05:37:36 PM »
I wish i had the tools to learn those skills.  :-\
any chance at getting a set of those triples?
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Offline Motoguy23

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Re: P38 Racer- 1974 CB550
« Reply #45 on: June 29, 2011, 12:42:10 AM »
Quote from: ffjmoore on June 28, 2011, 05:37:36 PM

any chance at getting a set of those triples?

I was thinking the same thing.  I need that triple tree.
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Offline RickB

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Re: P38 Racer- 1974 CB550
« Reply #46 on: June 29, 2011, 03:35:44 PM »
When I saw P38 I immediately thought of the twin tail boomed WWII fighter and thought this was going to be one of those cheesy 'theme' builds. I was wrong. There is an envious amount of craftsmanship and engineering going on here. Fantastic stuff.
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Offline Pain

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Re: P38 Racer- 1974 CB550
« Reply #47 on: June 29, 2011, 07:47:14 PM »
Quote from: ffjmoore on June 28, 2011, 05:37:36 PM
I wish i had the tools to learn those skills.  :-\

i just experienced this feeling as well.. including the depressed look on my face...
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Offline canibeyou2

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Re: P38 Racer- 1974 CB550
« Reply #48 on: July 01, 2011, 03:20:22 PM »
great work indeed.  hard not to appreciate what you're doing.  i'm very surprised that there are not more questions for you to make us this or that.  surely you have thought about offering some of these items for sale to us 'others'.  whatcha think?
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Offline tweakin

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Re: P38 Racer- 1974 CB550
« Reply #49 on: July 01, 2011, 04:28:52 PM »
Awesome work!  I am extremely jealous of the tools and machines you have at your disposal.....  Not to mention the skill you have to make the parts you are producing....  Want to make me some motor mounts for my 750????
« Last Edit: July 02, 2011, 05:29:20 AM by tweakin »
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