Author Topic: 1975 400/4 project  (Read 4020 times)

Offline mickwinf

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Re: 1975 400/4 project
« Reply #15 on: August 28, 2018, 05:03:00 PM »
oops just re-read your post and thats what you did! good luck!
Love the 500/4 and 550 own a 550 f2 at the moment

Offline Sprocket

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Re: 1975 400/4 project
« Reply #16 on: September 03, 2018, 08:57:24 AM »
So, update time.

Stand pin removal succeeded after sawing two slots longitudinally inside. Small strip removed, proper walloped it a bit then crushed the sticky out end in a vice.
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Pic because great victory.
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So I assembled all the bits I want to be blasted and powder coated black. Put some bolts in the threads, added threaded bar with large washers through the head tube to protect the bearing and also the swingarm, as the bushes look pretty good.
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So with that lot currently in the van, I'll be turning my attention to the contents of the sump...
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Which looks to be a "stopper comp, PV" 24660-377-000. And a bit of follower, perhaps?

Offline Nurse Julie

  • 1973 CB750 UK K2.1977 CB550/4 Mongrel Brat. 1978 CB400/4.
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Re: 1975 400/4 project
« Reply #17 on: September 03, 2018, 09:28:10 AM »
I just love seeing what goodies are in sumps. When Trig strips customers engines, I get all excited playing a game to see what bits I can identify before Trig finds where the bits came from 😀😀😀
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

Online SumpMagnet

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Re: 1975 400/4 project
« Reply #18 on: September 03, 2018, 12:33:33 PM »
Wow....that''s some chunky sump debris!

I will be playing that game over hte next few days. and I can't wait.

Got to ask, though, are ALL the stand pivots that nasty to remove? I suppose the wear points on the pivot being internal make for fun. I am used to simple pivots with a bolt through....so I have never had to do this. That and spending more time and effort putting stands BACK on bikes that came with them missing after dodgy 4-1 fitments saw them removed in the 80's.
CB750F2 - in pieces
CB900F Hornet - the daily transport

Offline Sprocket

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Re: 1975 400/4 project
« Reply #19 on: September 03, 2018, 01:13:11 PM »
I have experience on this one, and a particularly stubborn C70 from the same era. Both were victims of extreme swearing.

Interestingly, I took the footrest rubbers off and one of them was completely stuck due to corrosion of the peg beneath. Had to squeeze it out with the vice in the end!

Offline Sprocket

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Re: 1975 400/4 project
« Reply #20 on: September 06, 2018, 10:13:21 AM »
Current status of frame: Nude. In remarkably good nick though, considering the first investigation I made of the indicator bracket that was full of filler!

Offline Sprocket

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Re: 1975 400/4 project
« Reply #21 on: October 08, 2018, 03:28:34 PM »
Update.
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The bike is the correct way up now! Have fitted the swinger, new set of Hagon shocks, centre and side stands (everyone knows the 5p method here, right?)
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... and have assembled both sets of pegs.

In putting it the right way up, I couldn't help but notice the lock on the head tube. I originally planned to just leave this alone but before I fit the rest of it I may as well just put a new one in.
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Just awaiting arrival from DSS, then I can do this little lot.
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Offline petermigreen

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Re: 1975 400/4 project
« Reply #22 on: October 08, 2018, 04:58:12 PM »
Good progress, it's a great part of the restoration when you're putting it back together.
centre and side stands (everyone knows the 5p method here, right?)
I just use one of these

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Peter
1928 Ford Model A Tudor Sedan
1942 Ford GPW Jeep
1944 42WLA
1972 CB750K2 USA Candy Gold
1972 CB500K2 USA Candy Jet Green
1976 DT175C
1982 RD200F

Offline Spenny62

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Re: 1975 400/4 project
« Reply #23 on: October 09, 2018, 03:31:54 PM »
I've always been the one in class that asks the stupid question that nobody dares to ask even though they don't know the answer either. So........ What is the 5p method?

Offline Sprocket

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Re: 1975 400/4 project
« Reply #24 on: October 09, 2018, 03:49:43 PM »
What is the 5p method?
If you don't have one of these:

bend the spring and insert 5p pieces along both sides as long as you can (and wearing eye protection! as in this pic:

Offline Oddjob

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Re: 1975 400/4 project
« Reply #25 on: October 12, 2018, 10:02:54 PM »
You'll also find that if you fit the centre stand before the swinging arm you can raise the stand high enough that the stand spring can be fitted with just fingers.
Don't play stupid with me, I'm better at it

Offline Sprocket

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Re: 1975 400/4 project
« Reply #26 on: November 21, 2018, 08:53:29 AM »
So as of last evening, this is where I'm up to. It actually rolls! I still need to do some refurb on the wheels but my primary plan is to make it an actual motorcycle first then work my way through and pretty things up.
Dynasurf in Sandbach did my fork rechroming and were pretty good. Finish is very smooth. They charged £25 to chrome and polish the fork caps which was a little more than I was expecting.

And of all the stupid things I could possibly do, happily rolling it off the main stand without an exhaust attached has resulted in some extreme verbal flagellation and readjustment of the once pristine powder coat on the stand and the swinger.  :-[ Nail polish will hopefully fix.

Offline mike the bike

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Re: 1975 400/4 project
« Reply #27 on: November 22, 2018, 09:19:27 AM »
Nice to see another 400four coming back to life.
If at first you don't succeed, skydiving is not for you.

Offline Laverda120

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Re: 1975 400/4 project
« Reply #28 on: November 22, 2018, 11:48:04 AM »
Always a feel good moment when you have a rolling chassis. Keep up the good work and post photos of progress 👍.
1976 Honda 400/4
1977 Honda 400/4
1981 Honda CB250RSA
1977 Rickman Honda CR750
1999 Honda VFR 800FX
1955 750 Dresda Triton
1978 Moto Morini 350 Sport
1982 Laverda 120 Jota
1924 Triumph 550SD
2012 Stanley Battery Drill

Offline Nurse Julie

  • 1973 CB750 UK K2.1977 CB550/4 Mongrel Brat. 1978 CB400/4.
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Re: 1975 400/4 project
« Reply #29 on: November 22, 2018, 12:00:46 PM »
Great progress, just bolt everything back on now and you're away  ;D ;D ;D
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