Author Topic: A humble F2 build  (Read 12356 times)

0 Members and 1 Guest are viewing this topic.

Offline RAFster122s

  • I feel like a really really
  • Really Old Timer ...
  • *******
  • Posts: 12,428
  • SOHC4 member # 2605
Re: A humble F2 build
« Reply #25 on: March 04, 2013, 05:47:34 PM »
As far as forks go, Forks by Frank is a great source for new fork tubes. The internals can be cleaned and reused as they usually aren't damaged when the slider part of the fork is bent. Best to check the frame over with some straight edges and measurements to ensure the frame isn't tweaked before you put a lot more time into refinishing it.

Hate that you've been finding the junk that you have...

Once you have her back together and sorted you will know she's solid and after working through any tuning and care issues will have a solid reliable bike.

Hang in there.

David
David- back in the desert SW!

Offline noahspop

  • Hot Shot
  • ***
  • Posts: 403
  • 1977 CB750F2
Re: A humble F2 build
« Reply #26 on: March 05, 2013, 09:57:30 AM »
Thanks for the encouraging words David.

I've already secured a set of used forks from a fellow Sohc4 Member.
Thanks for the lead though.

Branden-
Where should I install these bearings? I'm still a newby.
Any type of diagram would be helpful.

Offline noahspop

  • Hot Shot
  • ***
  • Posts: 403
  • 1977 CB750F2
Re: A humble F2 build
« Reply #27 on: March 11, 2013, 10:11:27 AM »
I was able to split the case this weekend, and finally got access to the damaged rod.
I noticed a bit of residue at the bottom of the case. Everything else looks really good. I'm happy about that. I'm gonna attempt to take old rod off (challenging so far), then put new one and, and put case back together.

I was so happy to split the case, even though I had been dreading it.
« Last Edit: March 11, 2013, 10:14:12 AM by noahspop »

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,811
  • Northern Virginia
Re: A humble F2 build
« Reply #28 on: March 11, 2013, 10:38:46 AM »
That is a one farked up rod, you got there.
Prokop
_______________
Pure Gas - find ethanol free gas station near you

I love it when parts come together.

Dorothy - my CB750
CB750K3F - The Red
Sidecar


CB900C

2006 KLR650

Offline noahspop

  • Hot Shot
  • ***
  • Posts: 403
  • 1977 CB750F2
Re: A humble F2 build
« Reply #29 on: March 14, 2013, 01:37:40 PM »
I think I found the problem.  ???

I got the old rod off, and the new one one. Baby steps.

Offline RAFster122s

  • I feel like a really really
  • Really Old Timer ...
  • *******
  • Posts: 12,428
  • SOHC4 member # 2605
Re: A humble F2 build
« Reply #30 on: March 14, 2013, 01:55:10 PM »
Wow, might have tried to compress some fluid in that cylinder... Check your crank carefully for signs of damage
David- back in the desert SW!

Offline noahspop

  • Hot Shot
  • ***
  • Posts: 403
  • 1977 CB750F2
Re: A humble F2 build
« Reply #31 on: March 26, 2013, 08:49:05 AM »
The replacement rod is in place. Case is put back into one piece with all the 10mm bolts in the right place. So far so good.


Offline noahspop

  • Hot Shot
  • ***
  • Posts: 403
  • 1977 CB750F2
Re: A humble F2 build
« Reply #32 on: April 05, 2013, 01:50:08 PM »
So I torqued down all of the bolts on the case three different times because it seemed  snug when I tried to rotate the cam. Everything goes smoothly, but snug. I'm just wondering if this may be an issue in the future. Everything on the inside looked clean and in place.

 

Offline noahspop

  • Hot Shot
  • ***
  • Posts: 403
  • 1977 CB750F2
Re: A humble F2 build
« Reply #33 on: January 01, 2018, 08:31:36 PM »
Back at it again. Oh how life works out for the best.


Offline Godffery

  • Godffery's Garage
  • Expert
  • ****
  • Posts: 1,172
  • Wisdom brings a realization of how little we know.
    • Godffery's Garage hosted by VinMoto.org
Re: A humble F2 build
« Reply #34 on: January 02, 2018, 02:35:12 AM »
I think I found the problem.  ???

I got the old rod off, and the new one one. Baby steps.
Yup, that'll do it!   ;)

Offline JoeCooley

  • Long time lurker, but now I'm a
  • Hot Shot
  • ***
  • Posts: 298
Re: A humble F2 build
« Reply #35 on: January 02, 2018, 09:58:38 AM »
So I torqued down all of the bolts on the case three different times because it seemed  snug when I tried to rotate the cam. Everything goes smoothly, but snug. I'm just wondering if this may be an issue in the future. Everything on the inside looked clean and in place.

 

Back at it again. Oh how life works out for the best.



The engine should have little to no resistance when spinning it with a wrench other than the friction of the rings on the cylinder walls. Especially if the top end is removed. It is crucial to split the cases again and check all your bearings. You had a lot of metal running through your engine. Take it all apart. Blast all the oil galleries out with brake clean and compressed air. Thoroughly clean the oil passages in the cam towers. Have your crank for checked for straightness. Plastigauge the rod and main bearings and order new ones accordingly. You dont want that thing to run in its current state. I lost a head and cam due to a blocked oil passage. Its not fun breaking a cam in half on the freeway...
« Last Edit: January 02, 2018, 10:00:28 AM by JoeCooley »
Joe in San Diego - Quick Cyles
78 CB750K 836cc Highway Racer - http://forums.sohc4.net/index.php/topic,162264.0.html

Rickman CR750 Restoration (SOLD)

Offline noahspop

  • Hot Shot
  • ***
  • Posts: 403
  • 1977 CB750F2
Re: A humble F2 build
« Reply #36 on: October 16, 2023, 04:33:55 PM »
Still have the bike, and I still love it just the same. I recently put parts in different containers to help keep everything organized. Feeling very motivated to move forward with the build. Gonna try and throw up some pics of the work area. Wish me luck.

Offline noahspop

  • Hot Shot
  • ***
  • Posts: 403
  • 1977 CB750F2
Re: A humble F2 build
« Reply #37 on: October 17, 2023, 04:44:00 PM »
Back at it.

Offline newday777

  • Really Old Timer ...
  • *******
  • Posts: 5,357
  • Avatar is my 76 K6 in Colorado w/Cody on back 1980
Re: A humble F2 build
« Reply #38 on: October 17, 2023, 07:55:17 PM »
Back at it.
Back at monkeying around are you?
Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A