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Author Topic: One More Chapter in the Epic Story That is "THE PHOENIX"  (Read 26001 times)

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Offline Spikeybike

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One More Chapter in the Epic Story That is "THE PHOENIX"
« on: October 28, 2008, 10:48:34 pm »
so some may have seen earlier threads were i was kicking around how exactly to degree the cam of a 550 ("i heart megacycle")

so finally figuring out how its (suppose to be) done. i started kicking around other ideas of things to do while the motor is out and open (again)
  read alot of threads on boring, porting ,big bore, cam advance,and so on

jonsey's 550 porting thread

gentleman's express article

those were the most helpful , and of coarse the "thoughts of hondaman" in the Faqs

i'm not totally sold on punching out the jugs, i would love to do it but its strictly a money issue, first thing is the head

this is my first attempt at porting and its not done yet ... it's late and i'm tired

before


during


haven't done the final stage yet , i was too tired and getting sloppy 





oops   :-[  guess i'll be gettig a valve guide ...Doh

« Last Edit: November 02, 2008, 10:45:40 am by spikeybike »

Offline HavocTurbo

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #1 on: October 29, 2008, 01:43:10 am »
Think of it this way.... at least you noticed it BEFORE you put it back together!!!

Glad to see the bike is rising from the ashes.
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Offline kghost

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #2 on: October 29, 2008, 10:58:16 am »
Lotsa work there...looking good  8)
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Offline MCRider

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #3 on: October 29, 2008, 12:11:59 pm »
SNIP
oops   :-[  guess i'll be gettig a valve guide ...Doh



May want to ask around. On the head for my CB750 project the machinist tapered the guides into the porting process. Of the part that hangs into the port, all 4 of my intake guides have been worked on. Maybe that's OK in your case too, unless you cracked it or such.

Now that i think of it, he just took a little meat off the sides of the guides, none off of where the sideload of the valve might be, that's where your touch appears to be.
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Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline MRieck

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #4 on: October 29, 2008, 01:22:09 pm »
Taking some of the guide off doesn't necessarily mean you need a valve job. I've ground the exposed part of the guide right off many times. I've posted a pic for an example
« Last Edit: October 29, 2008, 01:27:48 pm by MRieck »
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Offline MCRider

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #5 on: October 29, 2008, 01:25:09 pm »
Taking some of the guide off doesn't necessarily mean you need a valve job. I've ground to exposed part of the guide right off many times. I've posted a pic for an example
Cool! It may be many years, but you'll get my next business.
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1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline MRieck

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #6 on: October 29, 2008, 01:29:00 pm »
Taking some of the guide off doesn't necessarily mean you need a valve job. I've ground to exposed part of the guide right off many times. I've posted a pic for an example
Cool! It may be many years, but you'll get my next business.
Thanks MC....hopefully I won't be going anywhere. ;)
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Offline Spikeybike

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #7 on: October 29, 2008, 05:29:08 pm »
Taking some of the guide off doesn't necessarily mean you need a valve job. I've ground the exposed part of the guide right off many times. I've posted a pic for an example

cool! thats a relief ,

Offline BlindJoe

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #8 on: October 29, 2008, 06:24:45 pm »
Taking some of the guide off doesn't necessarily mean you need a valve job. I've ground the exposed part of the guide right off many times. I've posted a pic for an example

So, would you recommend doing the same on a 550 head? I did the same thing Spikey, they're hard to avoid with the bigger bits.

Offline Spikeybike

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #9 on: October 30, 2008, 12:59:13 pm »
so does any one know if aftermarket valves for the 550 even exist , all i can find is stock valves

dynoman=no
kimblewhite=nope

just stock repros from DSS
« Last Edit: October 30, 2008, 01:00:46 pm by spikeybike »


Offline Sporkfly

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #11 on: October 30, 2008, 03:07:21 pm »
I recall seeing those valves in another thread as well. They're very nice valves, I'm tempted to pick some up... They're not that much more than going with Honda valves either, so it definitely wouldn't hurt to go with those.
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Offline moham

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #12 on: October 30, 2008, 03:11:41 pm »
Here is the thread of which you speak...

http://forums.sohc4.net/index.php?topic=42432.0

78 750K-The Ocho
74 550-The Cherry Picker
70 750K0 motor-Dick in a Box

Offline Spikeybike

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #13 on: October 30, 2008, 03:53:11 pm »
http://cgi.ebay.com/ebaymotors/HONDA-SOHC-CB500-CB550-OVERSIZE-VALVES-INTAKE-EXHAUST_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c39Q3a1Q7c66Q3a2Q7c65Q3a12Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q2em14QQhashZitem250315152437QQitemZ250315152437

He's one of us, just can't remember his name off hand, he custom makes them...he has a thread, CB550 head job maybe?

man those are pretty ... so mike, know anyone who would buy my arm or leg  ;D

Offline Sporkfly

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #14 on: October 30, 2008, 05:45:19 pm »
Once you sell your arm and leg, would you want to buy mine to replace them with? ;)
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Offline bwaller

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #15 on: October 30, 2008, 07:29:59 pm »
Keep in mind those valves are 1mm oversize.

Offline HavocTurbo

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #16 on: November 01, 2008, 12:18:09 pm »

Keep in mind those valves are 1mm oversize.

Well if its already apart... and ground up.... Might as well go for it!!!
'48 HD Panhead - Exxon Valdez
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Offline Spikeybike

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #17 on: November 01, 2008, 05:02:53 pm »



before





now some may be wondering why i haven't removed any of the old paint, normally that is one of the first steps ....  but i thought having the paint there would make it a little easier  to do this.






man my wrists are killin me

Offline HavocTurbo

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #18 on: November 01, 2008, 10:19:10 pm »
My neighbor used a belt sander and fine grit paper to do the fins on his DR650. If I were to do that I'd sand em smooth.... lol.

Looks great!!!
'48 HD Panhead - Exxon Valdez
'78 CB550K - Fokker CB.3
'78 Honda CB750K - Mavrik
'80 Yamaha XS850G - Kanibalistik
09 XL883L - No Name

Offline Spikeybike

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #19 on: November 01, 2008, 10:43:29 pm »
i used an angle grinder with a fine grit flap wheel, then a scotchbrite type wheel, then the polishing wheels on the bench grinder , wasn't that hard   

Offline mattcb350f

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #20 on: November 02, 2008, 09:44:26 am »
Nicely done Spike  8)

..I was gonna say what Mike said about the valve guide. Mine are cut down on the intake side on my 350F, but it has a much smaller port.....or at least it did  ;)

If you've read the other forums than you know not to go too smooth on the intake ports to allow for a bit of turbulence for mixing. It looks like those intake runners are about right to me  8)

Are you going with heavier valve springs too?

 Matt.
« Last Edit: November 02, 2008, 12:02:03 pm by mattcb350f »
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Offline Spikeybike

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #21 on: November 02, 2008, 10:44:58 am »

Are you going with heavier valve springs too?

 Matt.

yes, from megacycle

Offline kghost

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #22 on: November 02, 2008, 12:28:49 pm »
Very cool....

Your killing me...I'm between projects sigh  ::)
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Offline Spikeybike

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #23 on: November 02, 2008, 12:52:00 pm »
Very cool....

Your killing me...I'm between projects sigh  ::)

yeah i ran out of projects ;D and had this head laying around my garage . so i said to myself "yeah, you might as well"   ;D ;D

now i definitely gotta take the jugs off to at least polish the fins

Offline Spikeybike

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Re: One More Chapter in the Epic Story That is "THE PHOENIX"
« Reply #24 on: November 04, 2008, 10:23:46 pm »
so when i polish the intake valves, do i want to go all the way to a mirror finish , or am i just smoothing out any imperfections in the metal. 

 

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