Author Topic: 750 K1 project  (Read 5096 times)

Offline Crispy

  • SOHC Member
  • Posts: 144
    • View Profile
Re: 750 K1 project
« Reply #60 on: May 14, 2018, 07:07:12 PM »
Not checked my main bearings yet..still waiting for some plastigauge to arrive but judging by the wear and tear so far I'm expecting to have to put new ones in..so have been getting my head around the method of selecting the bearings this afternoon...not straightforward..like go out and buy a 6304 bearing is it?  Think I've Sussed  it....written them down below...any tips on where is the best place to get them if needed, also need to get full gasket , oil seals and o ring set?

Ps the upside down picture thing is something to do with my iPad, only occurs with pics taken with that...nobody else suffer from this?
« Last Edit: May 14, 2018, 07:23:52 PM by Crispy »

Offline Crispy

  • SOHC Member
  • Posts: 144
    • View Profile
Re: 750 K1 project
« Reply #61 on: May 15, 2018, 07:32:28 AM »
Just realised David Silvers has the bearings..thought they would be harder to find 🙄

Offline Crispy

  • SOHC Member
  • Posts: 144
    • View Profile
Re: 750 K1 project
« Reply #62 on: May 20, 2018, 05:17:24 PM »
Measured the bearing clearances today...I'm thinking that these bearings will be ok  to re-use....I get a clearance of 0.050mm and the limit according to the manual is 0.080mm....However the manual also states that the standard clearance should be 0.02 to 0 046mm. Should I replace them anyway?

Offline Trigger

  • SOHC Jedi
  • Posts: 6829
  • Engines built on reputation, not advertising.
    • View Profile
Re: 750 K1 project
« Reply #63 on: May 20, 2018, 07:05:14 PM »
To get that reading, have you torqued the crank up.
Bearings can be a bit funny, some of the gearbox bearings are under licence to Honda only.

« Last Edit: May 20, 2018, 07:09:13 PM by Trigger »

Offline Crispy

  • SOHC Member
  • Posts: 144
    • View Profile
Re: 750 K1 project
« Reply #64 on: May 20, 2018, 07:18:19 PM »
Yes..torqued it up as per the manual!

Offline Trigger

  • SOHC Jedi
  • Posts: 6829
  • Engines built on reputation, not advertising.
    • View Profile
Re: 750 K1 project
« Reply #65 on: May 20, 2018, 07:24:06 PM »
Yes..torqued it up as per the manual!

Well, your plasti strip is a lot cleaner than mine  ;D ;D

Offline Crispy

  • SOHC Member
  • Posts: 144
    • View Profile
Re: 750 K1 project
« Reply #66 on: May 20, 2018, 07:29:05 PM »
Well I've only used it once!... Bet yours has been put to more frequent use!

Offline Trigger

  • SOHC Jedi
  • Posts: 6829
  • Engines built on reputation, not advertising.
    • View Profile
Re: 750 K1 project
« Reply #67 on: May 20, 2018, 07:32:30 PM »
I would go with those shells. Is the oil pump apart yet ? If the oil pump is at full pressure, the shells are fine.

Offline Crispy

  • SOHC Member
  • Posts: 144
    • View Profile
Re: 750 K1 project
« Reply #68 on: May 20, 2018, 07:39:47 PM »
Cool ...No..I haven't touched the pump yet 😬  Will do at some point though !
I'll also repeat the plastigauge measurements a couple more times just to see if I can repeat the same results.
« Last Edit: May 20, 2018, 07:45:43 PM by Crispy »

Offline Crispy

  • SOHC Member
  • Posts: 144
    • View Profile
Re: 750 K1 project
« Reply #69 on: June 03, 2018, 08:14:32 PM »
Engine cases painted and cured, I can now begin to re assemble the engine.  After reading older threads I'm thinking I will get the Vesrah gasket set and Honda head gasket, unless anyone has any other advice.? I am also replacing the primary and cam chains, again any advice re primary chains ? Getting the upgraded did chain ....part number ....219FTH 94LE ..which I've just spotted on another recent thread... Cheers Trigger 👍
« Last Edit: June 03, 2018, 09:00:24 PM by Crispy »

Offline Trigger

  • SOHC Jedi
  • Posts: 6829
  • Engines built on reputation, not advertising.
    • View Profile
Re: 750 K1 project
« Reply #70 on: June 03, 2018, 09:03:13 PM »
Looks nice, what paint was used ? Use the STD primary chains. Vesrah are the best available.  Not sure if anyone in the UK does the upgraded cam chains, seems to be a lot of old stock ones floating about. If you get stuck for one, I can supply you one  ;)

Offline Crispy

  • SOHC Member
  • Posts: 144
    • View Profile
Re: 750 K1 project
« Reply #71 on: June 03, 2018, 10:20:12 PM »
Cheers Trigger,
Used Simoniz VHT31C engine enamel, may be in touch re cam chain! 👍

Offline Crispy

  • SOHC Member
  • Posts: 144
    • View Profile
Re: 750 K1 project
« Reply #72 on: June 08, 2018, 06:51:09 PM »
Got some nice shiny fork bits back from Philpotts today! 😊 Here are a few before and after pics..
« Last Edit: June 08, 2018, 07:20:42 PM by Crispy »

Offline JamesH

  • SOHC Jedi
  • Posts: 2824
    • View Profile
Re: 750 K1 project
« Reply #73 on: June 08, 2018, 07:13:03 PM »
Lovely work from Philpotts there..

Offline Nurse Julie

  • 1973 CB750 UK K2.1977 CB550/4 Mongrel Brat. 1978 CB400/4.
  • SOHC Jedi
  • Posts: 4955
    • View Profile
Re: 750 K1 project
« Reply #74 on: June 08, 2018, 07:45:23 PM »
Lovely shiney blingy bits there. Very nice. Did they polish the fork lowers you?
Im a Nurse, trust me, this won't hurt.....much !!!

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal