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Author Topic: Oh No! Am I screwed!  (Read 2778 times)

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Offline jamesv220820

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Oh No! Am I screwed!
« on: July 11, 2014, 10:06:31 AM »
I started installing my forks today and went by the book which said to tighten the top and lower bridge bolts 13-17 ft lbs and this happened!






WHAT DO I DO!!!
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There is nothing to fear but fear itself . . . and trying to restore a cb350f

Offline flybox1

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Re: Oh No! Am I screwed!
« Reply #1 on: July 11, 2014, 10:14:53 AM »
Bummer  :-\
time to look for another lower tree and stem
(the 350F does not require a spacer at the clamp)
« Last Edit: July 11, 2014, 12:48:12 PM by flybox1 »
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Offline flybox1

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Re: Oh No! Am I screwed!
« Reply #2 on: July 11, 2014, 10:16:07 AM »
CMSNL does have new ones
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

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Offline jamesv220820

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Re: Oh No! Am I screwed!
« Reply #3 on: July 11, 2014, 10:19:37 AM »
Quote from: flybox1 on July 11, 2014, 10:14:53 AM
Bummer  :-\
time to look for another lower tree and stem
(the 350F does not require a spacer at the lower clamp)

its the top bridge the lower one is still ok
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There is nothing to fear but fear itself . . . and trying to restore a cb350f

Offline jamesv220820

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Re: Oh No! Am I screwed!
« Reply #4 on: July 11, 2014, 10:29:14 AM »
The Crack goes all the way through on the front.  half way down in the inside.  it doesn't completely go through on the bottom.  You wonder why this bike has taken me 5+ years and $4k to restore .  screw this this bike is soon to be parted out if stuff like this keeps happening
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There is nothing to fear but fear itself . . . and trying to restore a cb350f

Offline flybox1

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Re: Oh No! Am I screwed!
« Reply #5 on: July 11, 2014, 10:41:34 AM »
Quote from: jamesv220820 on July 11, 2014, 10:29:14 AM
The Crack goes all the way through on the front.  half way down in the inside.  it doesn't completely go through on the bottom.  You wonder why this bike has taken me 5+ years and $4k to restore .  screw this this bike is soon to be parted out if stuff like this keeps happening
Sorry James.  saw lower bridge bolts in your OP and thoght thats what it was.
Take a break, no pun intended, and get to something else. 
maybe someone here is parting one out and can help.
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline seanbarney41

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Re: Oh No! Am I screwed!
« Reply #6 on: July 11, 2014, 10:50:17 AM »
Don't freak.  That is not a rare part.  What bike and year?  I probably have one for you.  Did you have the D washers in there?
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Offline Deltarider

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Re: Oh No! Am I screwed!
« Reply #7 on: July 11, 2014, 11:14:47 AM »
Feel sorry for you. Could you have made an error setting the torque wrench?
BTW, I am not particularly fond of using these wrenches for low torque values.
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Offline jamesv220820

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Re: Oh No! Am I screwed!
« Reply #8 on: July 11, 2014, 11:33:24 AM »
Quote from: seanbarney41 on July 11, 2014, 10:50:17 AM
Don't freak.  That is not a rare part.  What bike and year?  I probably have one for you.  Did you have the D washers in there?

D washers?

It is a 1973 Honda CB350f
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Offline jamesv220820

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Re: Oh No! Am I screwed!
« Reply #9 on: July 11, 2014, 11:36:00 AM »
Quote from: Deltarider on July 11, 2014, 11:14:47 AM
Feel sorry for you. Could you have made an error setting the torque wrench?
BTW, I am not particularly fond of using these wrenches for low torque values.

No didnt make any mistake with the torque wrench.  I used my fancy craftsman 200 dollar torque wrench because I am always scared of cheap torque wrenches. 
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Offline Ericcb750

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Re: Oh No! Am I screwed!
« Reply #10 on: July 11, 2014, 11:38:58 AM »
Hey, sorry to hear that. I actually got parts recently from David Silver Spares and I remember seeing a Top Triple tree on there. If you go on that site and put in your bike info, all the parts available will come up, they might have one. the top tree I saw was for a 78 750K and was only $95.00. Good luck man, hope it works out for you. Sorry I'm on my first one so I don't have any spare parts. I'm sure you'll be able to finde one.
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Offline jamesv220820

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Re: Oh No! Am I screwed!
« Reply #11 on: July 11, 2014, 12:01:14 PM »
Quote from: Ericcb750 on July 11, 2014, 11:38:58 AM
Hey, sorry to hear that. I actually got parts recently from David Silver Spares and I remember seeing a Top Triple tree on there. If you go on that site and put in your bike info, all the parts available will come up, they might have one. the top tree I saw was for a 78 750K and was only $95.00. Good luck man, hope it works out for you. Sorry I'm on my first one so I don't have any spare parts. I'm sure you'll be able to finde one.

Already checked their site they do not carry the top bridge :(
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Offline jamesbekman

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Re: Oh No! Am I screwed!
« Reply #12 on: July 11, 2014, 12:02:48 PM »
What has you $4k in the hole?  Id love to see some pics!
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Offline goldarrow

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Re: Oh No! Am I screwed!
« Reply #13 on: July 11, 2014, 12:31:31 PM »
Quote from: jamesv220820 on July 11, 2014, 11:33:24 AM
Quote from: seanbarney41 on July 11, 2014, 10:50:17 AM
Don't freak.  That is not a rare part.  What bike and year?  I probably have one for you.  Did you have the D washers in there?

D washers?

It is a 1973 Honda CB350f

yes, you probably missing the D washer.  look in the fiche and you'll see it
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Offline flybox1

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Re: Oh No! Am I screwed!
« Reply #14 on: July 11, 2014, 12:48:36 PM »
Quote from: flybox1 on July 11, 2014, 10:14:53 AM
Bummer  :-\
time to look for another lower tree and stem
(the 350F does not require a spacer at the clamp)
no D-washer, guys.
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
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"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline goldarrow

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Re: Oh No! Am I screwed!
« Reply #15 on: July 11, 2014, 12:53:03 PM »
My bad...
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Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline Thamuz

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Re: Oh No! Am I screwed!
« Reply #16 on: July 11, 2014, 01:04:47 PM »
Let me look through my 350f parts.  I have one that I got for parts.  I might have one.  at work till WAY late.
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Offline jamesv220820

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Re: Oh No! Am I screwed!
« Reply #17 on: July 11, 2014, 02:43:37 PM »
Quote from: jamesbekman on July 11, 2014, 12:02:48 PM
What has you $4k in the hole?  Id love to see some pics!

um not much just had to replace a fair amount of parts then a lot of rare parts like original giulari seat for the cb350f and mivv exhaust system throw all the powder coating, painting , and new parts and it adds up very very fast, too fast im starting to think 4k is an underestimate :(


just checked ebay not seeing and top bridges :(
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There is nothing to fear but fear itself . . . and trying to restore a cb350f

Offline flybox1

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Re: Oh No! Am I screwed!
« Reply #18 on: July 11, 2014, 02:51:34 PM »
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline lucky

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Re: Oh No! Am I screwed!
« Reply #19 on: July 11, 2014, 06:19:24 PM »
Quote from: jamesv220820 on July 11, 2014, 02:43:37 PM
Quote from: jamesbekman on July 11, 2014, 12:02:48 PM
What has you $4k in the hole?  Id love to see some pics!

um not much just had to replace a fair amount of parts then a lot of rare parts like original giulari seat for the cb350f and mivv exhaust system throw all the powder coating, painting , and new parts and it adds up very very fast, too fast im starting to think 4k is an underestimate :(


just checked ebay not seeing and top bridges :(

It is easy to spend 3 grand on a restoration done properly.
Now days many parts are $100
But that triple tree is easy to get. There are lots of them.
I would not use a torque wrench either. Just tighten it by hand.
Make sure about those "D" washers.
Many people have broken those castings because washers were missing.
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Offline seanbarney41

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Re: Oh No! Am I screwed!
« Reply #20 on: July 11, 2014, 07:06:01 PM »
Quote from: jamesv220820 on July 11, 2014, 11:33:24 AM
Quote from: seanbarney41 on July 11, 2014, 10:50:17 AM
Don't freak.  That is not a rare part.  What bike and year?  I probably have one for you.  Did you have the D washers in there?

D washers?

It is a 1973 Honda CB350f
cb350f? ooops  might go ahead and freak.  I've never even touched one of those before.  I assumed 500/550/750.
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Offline jamesv220820

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Re: Oh No! Am I screwed!
« Reply #21 on: July 11, 2014, 07:15:12 PM »
Quote from: Thamuz on July 11, 2014, 01:04:47 PM
Let me look through my 350f parts.  I have one that I got for parts.  I might have one.  at work till WAY late.

William you must be my motorcycle guardian angel first the ignition bracket and now you might have a top bridge...totally lifting my spirits!

-james
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Offline jamesv220820

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Re: Oh No! Am I screwed!
« Reply #22 on: July 11, 2014, 07:16:56 PM »
So is this pretty normal? I did have the part powder coated professionally where they strip it and all that stuff.  could powder coating of actually weakened the piece ?
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Offline jamesv220820

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Re: Oh No! Am I screwed!
« Reply #23 on: July 11, 2014, 07:20:57 PM »
for you guys mentioning D washers here is the parts fiche for the cb350f


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Offline scottly

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Re: Oh No! Am I screwed!
« Reply #24 on: July 11, 2014, 07:33:53 PM »
Quote from: jamesv220820 on July 11, 2014, 11:36:00 AM
Quote from: Deltarider on July 11, 2014, 11:14:47 AM
Feel sorry for you. Could you have made an error setting the torque wrench?
BTW, I am not particularly fond of using these wrenches for low torque values.

No didnt make any mistake with the torque wrench.  I used my fancy craftsman 200 dollar torque wrench because I am always scared of cheap torque wrenches.
What is the range of your "fancy" torque wrench? For such low values, the torque wrench should have a maximum of about 25 ft/lbs.
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