« previous next »
Pages: [1]   Go Down

Author Topic: F2 rod bolts  (Read 4792 times)

0 Members and 2 Guests are viewing this topic.

Offline Big Jay

  • Expert
  • ****
  • Posts: 1,252
    • CBRzone
F2 rod bolts
« on: June 30, 2012, 05:58:17 PM »
Are they a direct replacement into earlier K rods? Never have been a big fan of trying to use the stock rods in built Honda motors, so we have never tried this before.

I remember back in the day when RC put the small block Ford bolts in them.
Logged

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 19,816
  • Saver of unloved motorcycles.
Re: F2 rod bolts
« Reply #1 on: June 30, 2012, 08:43:05 PM »
I wonder if ARP has a small block ford bolt that would work? Hmmm, surely the rod would meed machining.
 I have read about the F bolts being used but haven't done it myself.
« Last Edit: June 30, 2012, 08:44:46 PM by Don R »
Logged
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Online Jerry Rxman Griffin aka MuthaF'er

  • This MuthaF'er is getting to be a
  • Really Old Timer ...
  • *******
  • Posts: 14,902
  • Bought her new 4/75
Re: F2 rod bolts
« Reply #2 on: June 30, 2012, 08:56:57 PM »
As you probably know the "rod" is listed as a complete unit with the bolt and nut but the bolts and nuts are also listed separate. The part numbers for the rod, bolt and nut are -300 until engine number 2604929. From what I've heard the bolts and nuts changed but the rods were the same. I've also heard that Corvair bolts were used as hd replacements. Operative word here is "heard" with no true experience. The F2/F3 bolts ands nuts are still available so that would give a definitive answer.

Let's get a definitive from our motorhead experts.
« Last Edit: June 30, 2012, 08:59:37 PM by Jerry Rxman Griffin »
Logged
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline brandEn

  • Old Timer
  • ******
  • Posts: 3,205
Re: F2 rod bolts
« Reply #3 on: June 30, 2012, 09:40:27 PM »
subscribed
Logged

Offline jaguar

  • Old Timer
  • ******
  • Posts: 2,763
Re: F2 rod bolts
« Reply #4 on: June 30, 2012, 09:51:12 PM »
Also in for information on HD rod bolts
Logged

Offline classic bike tuner

  • Enthusiast
  • **
  • Posts: 113
  • http://www.cmrch.nl/
    • cmrch.nl/
Re: F2 rod bolts
« Reply #5 on: July 01, 2012, 03:20:53 AM »
13213-kvo-000  bigend bolts  can use std nuts
direct replacement fits direct olso for the smaller engines  350-400-500-550-650

actually the are from a vtr 250 olso used in cbr 600 and a lot more

gerrit



Logged

Offline bwaller

  • Really Old Timer ...
  • *******
  • Posts: 7,484
Re: F2 rod bolts
« Reply #6 on: July 01, 2012, 06:35:35 AM »
Agreed they are a direct replacement. Nuts are 13214-410-003.
Logged

Offline voxonda

  • Master
  • *****
  • Posts: 2,231
Re: F2 rod bolts
« Reply #7 on: July 01, 2012, 03:21:59 PM »
Yep, direct replacement.
Logged
Better sorry for failing then for the lack of trying.

Offline MRieck

  • Really Old Timer ...
  • *******
  • Posts: 10,560
  • Big ideas....
Re: F2 rod bolts
« Reply #8 on: July 01, 2012, 03:59:06 PM »
They work on 550 rods as well
Logged
Owner of the "Million Dollar CB"

Offline jaguar

  • Old Timer
  • ******
  • Posts: 2,763
Re: F2 rod bolts
« Reply #9 on: July 01, 2012, 05:01:10 PM »
So the F2 bolts are stronger then the K bolts and are a direct swap.  Is there something that is stronger still that also bolts in, or is it not worth it?
Logged

Offline MRieck

  • Really Old Timer ...
  • *******
  • Posts: 10,560
  • Big ideas....
Re: F2 rod bolts
« Reply #10 on: July 01, 2012, 06:00:39 PM »
Quote from: jaguar on July 01, 2012, 05:01:10 PM
So the F2 bolts are stronger then the K bolts and are a direct swap. Is there something that is stronger still that also bolts in, or is it not worth it?
Not that I know of.
Logged
Owner of the "Million Dollar CB"

Offline bear

  • Vale Bill McIntosh ......"illegitimi non carborundum"
  • Old Timer
  • ******
  • Posts: 2,575
  • Leeton in Australia
Re: F2 rod bolts
« Reply #11 on: July 02, 2012, 05:40:16 AM »
I know this is out of left field for the tech heads on this site.
But check out the pic attached.
Yes the conrod bolts are cat8.
I race with these blokes and they have been around for awhile.
I asked them why?
And they said they couldn't get the proper bolts at the time.
I do not lie, this motor actually managed to complete two meetings before it finally sh!t it self.

Cheers,
Brian
« Last Edit: July 02, 2012, 06:19:22 AM by bear »
Logged
The older I get the faster I was.

Offline MRieck

  • Really Old Timer ...
  • *******
  • Posts: 10,560
  • Big ideas....
Re: F2 rod bolts
« Reply #12 on: July 02, 2012, 05:55:28 AM »
Holy $hit! You guys must have the "really good" hardware stores! ;D
Logged
Owner of the "Million Dollar CB"

Offline mec

  • Hot Shot
  • ***
  • Posts: 503
Re: F2 rod bolts
« Reply #13 on: July 02, 2012, 09:52:12 AM »
Quote from: bear on July 02, 2012, 05:40:16 AM

But check out the pic attached.
Cheers,
Brian

please give me their phonenumber, i need to have done some safety wiring :)

mec
Logged
Honda Monkey
Takeuchi TB 070
Massey Ferguson

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 19,816
  • Saver of unloved motorcycles.
Re: F2 rod bolts
« Reply #14 on: July 08, 2012, 08:51:44 PM »
That filter shouldn't tighten any more than it already is!
Logged
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,807
Re: F2 rod bolts
« Reply #15 on: July 09, 2012, 12:35:46 PM »
Will there ever be a need for REPRODUCTION cases 8) 8) 8) 8) 8) 8) 8) 8)
Logged
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2020 ROYAL ENFIELD Himalayan

Offline turboguzzi

  • Old Timer
  • ******
  • Posts: 4,084
Re: F2 rod bolts
« Reply #16 on: July 09, 2012, 03:31:14 PM »
initially i thought it was hilarious,

but coming to think about it, if you crash your brains out due to oil left by someone else using hardware store "con rod bolts" then thats not funny at all.

would heavily fine them or something, no kidding

TG
Logged

Offline solo 2

  • Enthusiast
  • **
  • Posts: 144
Re: F2 rod bolts
« Reply #17 on: July 09, 2012, 08:41:54 PM »
I posted this in my thread I think but here's the difference, the spiral groove probably does not help the strength of the K bolt.

Logged
You know you've achieved perfection in design, not when you have nothing more to add, but when you have nothing left to take away.
Pages: [1]   Go Up
« previous next »