Author Topic: CB750F2 sohc con-rod bolts  (Read 708 times)

Offline SPEN10000

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CB750F2 sohc con-rod bolts
« on: June 07, 2020, 01:26:08 PM »
Hi all, i,m a new member asking a question about rod bolts for my CB750F" sohc Phil read replica. were can i get new con-rod bolts or can i re-use the old ones? any information would be welcome please.

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Re: CB750F2 sohc con-rod bolts
« Reply #1 on: June 07, 2020, 01:50:12 PM »
Ordinarily and with no damage or reason to suspect they've been taken beyond normal operating conditions,  they are reusable and most engine builds don't replace.

They are torqued during installation within their elasticity limits,  so not taken through "yeald" as a stretched bolt application does.

13.0 to 15.9 lbs/ft rating from Honda manual.

Offline Trigger

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Re: CB750F2 sohc con-rod bolts
« Reply #2 on: June 07, 2020, 01:50:39 PM »
Welcome to the mad world of the SOHC. If they are OEM they can be reused as long as they have not been over torqued  ;)

Offline SteveD CB500K0

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Re: CB750F2 sohc con-rod bolts
« Reply #3 on: June 07, 2020, 02:21:04 PM »
Welcome. We have a thriving set of PRR owners here. I'm sure they will be along soon.

Had one myself for a while:

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2022 Tiger Sport 660
1971 CB500K0

Offline SPEN10000

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Re: CB750F2 sohc con-rod bolts
« Reply #4 on: June 07, 2020, 03:28:22 PM »
Hi Guys, thanks for your help, it is most welcome. i am sure i will be asking for more help as the restoration goes along. :)

Offline philward

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Re: CB750F2 sohc con-rod bolts
« Reply #5 on: June 07, 2020, 05:53:51 PM »
Welcome - enjoy the forum (I had one too!)
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline SteveD CB500K0

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Re: CB750F2 sohc con-rod bolts
« Reply #6 on: June 07, 2020, 05:54:20 PM »
Picture Phil?


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2022 Tiger Sport 660
1971 CB500K0

Offline philward

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Re: CB750F2 sohc con-rod bolts
« Reply #7 on: June 07, 2020, 06:27:40 PM »
I'll try and dig one out Steve - I'll ignore the other comment Ken!
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline philward

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Re: CB750F2 sohc con-rod bolts
« Reply #8 on: June 07, 2020, 06:33:17 PM »
As requested
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline AshimotoK0

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Re: CB750F2 sohc con-rod bolts
« Reply #9 on: June 07, 2020, 06:35:44 PM »
What brought it home for me about re-using con-rod bolts is Honda  tell you to Plastigage the bearings which involve torqing up the nuts and then disassembly possibly a couple of times so technically on final re-assembly they are used.
“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

 

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