collapse

www.dimecitycycles.com

www.cognitomoto.com

https://www.townmoto.com/collections/vanson-leathers

www.speedmotoco.com

www.CITYLIMITMOTO.com

www.jadusmotorcycleparts.com

www.lostapostlejewelry.com

www.sparckmoto.com

www.pistonsociety.com


Author Topic: 1982 CB750F... The resto-not  (Read 21652 times)

Online Jimbonaut

  • DTT BOTM WINNER
  • *
  • Posts: 1746
    • Lost Apostle
Re: 1982 CB750F... The resto-not
« Reply #580 on: May 15, 2019, 17:06:49 »
Heard back - the company that makes the cam chains is called Borg Warner.  From what little I found online they're very reputable and a good aftermarket option.  Anyone got any first hand real world feedback on them?
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline irk miller

  • DTT SUPPORTER
  • *
  • DTT BOTM WINNER
  • *
  • Posts: 8795
  • You've been mostly-dead all day.
Re: 1982 CB750F... The resto-not
« Reply #581 on: May 15, 2019, 18:25:49 »
I know Borg Warner for their turbos. 


Online Jimbonaut

  • DTT BOTM WINNER
  • *
  • Posts: 1746
    • Lost Apostle
1982 CB750F... The resto-not
« Reply #582 on: May 16, 2019, 10:51:02 »
So gents, anyone got the skinny on cam chains? I got chastised (read - chewed a new one) on another forum for suggesting I’d be buying a cam chain which I’d be opening and then installing a master link - apparently this is Not The Done Thing and cutting corners. They’re probably right - to do the job properly I should be splitting the cases, and installing an endless chain. What gives?


Sent from my iPhone using DO THE TON
« Last Edit: May 16, 2019, 10:56:21 by Jimbonaut »
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline irk miller

  • DTT SUPPORTER
  • *
  • DTT BOTM WINNER
  • *
  • Posts: 8795
  • You've been mostly-dead all day.
Re: 1982 CB750F... The resto-not
« Reply #583 on: May 16, 2019, 11:13:48 »
Ask how many of them (themselves, not read on the internet) have used a master link and had their chain break or run for a shorter life.

Online Jimbonaut

  • DTT BOTM WINNER
  • *
  • Posts: 1746
    • Lost Apostle
Re: 1982 CB750F... The resto-not
« Reply #584 on: May 16, 2019, 11:31:09 »
You’ve used a master link Irk? No drama?


Sent from my iPhone using DO THE TON
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline irk miller

  • DTT SUPPORTER
  • *
  • DTT BOTM WINNER
  • *
  • Posts: 8795
  • You've been mostly-dead all day.
Re: 1982 CB750F... The resto-not
« Reply #585 on: May 16, 2019, 11:40:16 »
No drama.  It's not the clip kind like we use on our drive chains.  You still have to use a press.  How in the hell do they think the factory makes them?

Online advCo

  • DTT BOTM WINNER
  • *
  • Posts: 3112
  • Nick Ol' Eye
    • adventur Studios
Re: 1982 CB750F... The resto-not
« Reply #586 on: May 16, 2019, 12:21:37 »
From another thread -

Couple of thoughts.  If I have to use a soft link, I use a large hammer on the other side as an anvil.

Most bikes of the era use a 219 chain but that size comes in a number of different "strengths".  Some use thicker side plates and so have longer pins.  Some use thicker pins, so if you buy a link, make sure it is the right size. And if you can find one with a clip and not rivet, it's OK to use it.

Personally I've only ever used endless cam chains because I don't want to deal with the master link and if I'm replacing the cam chain then I already have the cases split for whatever reason.

Offline Nybz

  • Posts: 30
Re: 1982 CB750F... The resto-not
« Reply #587 on: May 16, 2019, 13:49:59 »
I thought splitting and assembling the cases would be more of a job then it actually was.
You are going this far, why not go the whole way?

It gave me a chance to look at the main and rod bearings which about half of them where shot. There aren’t cheap though at about $200 to replace both sets.
You can also look over your gears and gear selector forks to make sure no chipped teeth or extra wear.
There are a few rubber O rings down there that could probably be replaced, and clean out your sump screen.

Also, i didn’t do it cause I found out too late. But if you want the engine to purr and not rattle there are rubber dampeners in the primary shaft (that aren’t shown in parts lists) that can be replaced, check the 1100f forum there is a guy there that sells them. Along with clutch basket dampeners (but you can get a cheaper kit from cb750.com)

Just watch those torque values on those case bolts, found out the hard way they aren’t all the same.

The cam chains stamped with a M are the good ones.
Can’t remember did you end up getting the cam chain tensioners from Brent at V&H? He sells them.

Tool rocks!


Sent from my iPhone using DO THE TON
1979 CB750 LTD collectors plates
1979 CB750 K current custom rebuild
1980 CB750 F in waiting...

Past bikes
1982 GL1100
1980 CB400

Offline teazer

  • DTT SUPPORTER
  • *
  • DTT BOTM WINNER
  • *
  • Posts: 8957
Re: 1982 CB750F... The resto-not
« Reply #588 on: May 16, 2019, 17:15:17 »
I can't tell you how long a master link will last on the street, but on a road race motor I have never had one fail - clip type or soft pin design (rivet type).  But that applies to 219 type single row chains.  On the DOHC motor with HyVo chain I have not tried to use a master link.  Last CB900 I built was stripped and bored etc so new endless chains were fitted.

As Irk said earlier, ask them how many failed master links they have personally experienced or seen in the real world. There's a lot of armchair experts out there.  If you do choose to go with a master link on a DOHC HyVo chain, make sure it is correctly rivetted and still free to move.

Offline cb360j

  • Posts: 302
Re: 1982 CB750F... The resto-not
« Reply #589 on: May 16, 2019, 18:53:12 »
Just installed a cam chain for my 360 and it was the press type. I don't know if 750s are the same way, but the links were so small that it didn't line up in the press correctly. I had to walk it back and forth between pins to get it absolutely perfect.  Makes me wish I had sprung for the motion pro one, it seems like it wouldve fit better. Just saying in case you run into the same issue.