Author Topic: 73 greasy rat is done and it runs(video)  (Read 16068 times)

0 Members and 1 Guest are viewing this topic.

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #25 on: December 23, 2009, 11:34:17 AM »
Yeah,but you are in a nice warm place,I am freezing my butt off up here.Its not that cold,but my garage is in constant shade so its like an icebox.Hard to work on cold engine parts when you see your breath.
its better to regret something you have done,than something you havent.Except playing with explosives.

Offline HedNut

  • Underwater Basket Weaving
  • Expert
  • ****
  • Posts: 844
  • CB750...A Two-wheeled hellcat from Planet Kickass
Re: 73 cb750 project greasy
« Reply #26 on: December 24, 2009, 08:08:17 AM »
Hey! Sounds like we're in the same boat... I totally agree with the gaskets being a pain in the balls....I'm sure I made a few comments in my build.  And I'm in a cold as nasty place also....today is the warmest in almost a month @ -12 deg. F this morning.   And I just finished pulling the valves outa my head!.   ANyways! Love the build! Keep up the good work! And Merry Christmas!!!
Cheers!

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #27 on: December 24, 2009, 10:39:15 AM »
Thanks,I certainly arent as cold as you are,sheeesh,thats cold.So now that I have the HM341's I want carpy's Yosh replica.Never satisfied I guess.Any thoughts on this.with the originals I can make it stock,but I really want to build a cafe,but I do have two bikes but can only do one at the moment,hmmmmm,what to do?My rickman fairing does match the stock paint,but then again a sunrise orange cafe is nice too.Maybe if I sell something to pay for the Yosh,blood,sperm,a kidney maybe.
its better to regret something you have done,than something you havent.Except playing with explosives.

traveler

  • Guest
Re: 73 cb750 project greasy
« Reply #28 on: December 24, 2009, 01:09:44 PM »
my .02

Go cafe.  I love the stock bikes, but I wouldn't restore one to stock unless it was a sandcast 750K0, with numbers matching.

~Joe

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #29 on: December 26, 2009, 06:40:29 PM »
ok,this gasket removing is getting ridiculous.I am now terrified to remove anything else that requires a gasket.But I have a new clutch and will be doing that as well.Also I want to check out and clean my oil pump.I am jealous of you all that pull off your head and the gasket comes right off.getting the lil pieces on the case off around the cylinder studs is one of the worst things ever.I am still debating on HD studs.I know I should but money is tight.I have read that after break in you should retorque,but that means pulling the motor again.Ouch.I have searched and searched about gasket removal,but am still looking for a better way.Is there?Anyone?
its better to regret something you have done,than something you havent.Except playing with explosives.

traveler

  • Guest
Re: 73 cb750 project greasy
« Reply #30 on: December 26, 2009, 07:44:28 PM »
Retorque-ing is good, but you don't have to pull the motor.

Just do the best you can to get at everything.

These motors were designed well.  It's gonna be fine, no worries.

In the future, just soak dried gaskets, let it soak in, then go at it with an old credit card.

~Joe

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #31 on: December 27, 2009, 08:48:47 AM »
I have tried gasket remover and paint stripper.I thought those would do the trick.I have heard nightmares about the stripping pads on a rotary tool so the green scotch brite and fine steel wool are the only thing that seem to work,but the razor blade scraper is the best but I have managed a few nicks and cuts in the aluminum so I stopped ,plastic razor blades are a joke.The bike ran fine but leaked,I should have left well enough alone and delt with it.I had a complete gasket kit and a new clutch,I figured wintertime project,how hard could it be.Obviously I'm getting frustrated.
its better to regret something you have done,than something you havent.Except playing with explosives.

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #32 on: December 27, 2009, 01:27:22 PM »
OK,SOMEONE PLEASE TELL ME OR SHOW HOW BAD IS BAD.A few nicks here and there,maybe I am being too anal about it,will the newer gasket and sealer do the trick?I will post close up pics tomorrow.I soaked the piss put of the remaining bits of gasket every nite for a couple of days,and the stubborn pieces just laugh at me and say is that the best you got.I am only doing the top end so I cant soak it upside down in a solution.(bottom case that is)
its better to regret something you have done,than something you havent.Except playing with explosives.

traveler

  • Guest
Re: 73 cb750 project greasy
« Reply #33 on: December 27, 2009, 02:13:37 PM »
nicks are fine...Gouges are not.

if you feel better about it, put a paper thin layer of gasket sealer on it and forget it.

~Joe

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #34 on: December 28, 2009, 08:32:20 AM »
Here are some more pics,you can see the scratches,and you can see the remaining gasket that is making me want to drink a lot.The only thing that works is a razor blade,I have done Art restoration so I know how to be careful,I am learning so much doing this,its quite educational,I just hope it runs when I am through.
its better to regret something you have done,than something you havent.Except playing with explosives.

traveler

  • Guest
Re: 73 cb750 project greasy
« Reply #35 on: December 28, 2009, 08:41:12 AM »
remaining gasket material....use some medium grit sandpaper.

The nicks you are showing are minimal...no problem at all.

~Joe

Offline Ogri

  • Thinks he's a
  • Hot Shot
  • ***
  • Posts: 331
Re: 73 cb750 project greasy
« Reply #36 on: December 28, 2009, 08:49:34 AM »
remaining gasket material....use some medium grit sandpaper.

The nicks you are showing are minimal...no problem at all.

~Joe


+1.  Nothing to worry about at all.

Offline MCRider

  • Such is the life of a
  • Really Old Timer ...
  • *******
  • Posts: 14,376
  • Today's Lesson: One good turn deserves another.
Re: 73 cb750 project greasy
« Reply #37 on: December 28, 2009, 09:36:43 AM »
my .02

Go cafe.  I love the stock bikes, but I wouldn't restore one to stock unless it was a sandcast 750K0, with numbers matching.

~Joe

FYI: honda frame/engine numbers never match. They should be in the range of the model one is dealing with however.

I'd be suspicious of one where the numbers did match, it would be evidence they had been restamped by someone who didn't know better.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #38 on: December 28, 2009, 10:18:56 AM »
My numbers are  in the range.I may cafe it,but not cut anything so I can put back to stock at a later date.
its better to regret something you have done,than something you havent.Except playing with explosives.

joec3613

  • Guest
Re: 73 cb750 project greasy
« Reply #39 on: December 28, 2009, 06:29:11 PM »
Looks good. Someone told me about using copper spray on the gaskets before putting them on. I guess it helps seal better. I picked up a small can at NAPA for $4.00.

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #40 on: December 31, 2009, 08:47:56 AM »
heres the rugrat helping me clean the jugs on the dining room table(my wife is awesome)I have tried all the cleaning products suggested on this forum,and the very best thing that cleans a motor is(in my opinion)is commercial espresso machine cleaner.Its what I do.Coffee oil is nasty stuff,and this stuff works wonders.
its better to regret something you have done,than something you havent.Except playing with explosives.

traveler

  • Guest
Re: 73 cb750 project greasy
« Reply #41 on: December 31, 2009, 09:07:56 AM »
Looks good!

~Joe

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #42 on: January 13, 2010, 09:02:47 AM »
anyone ever notice this cool logo on the oil pump body?Also,most of my fasteners have a dab of yellow paint on them,does this mean they were torqued then marked at the factory?
its better to regret something you have done,than something you havent.Except playing with explosives.

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #43 on: January 18, 2010, 09:46:17 AM »
So I just ordered some Heavy duty cylinder studs,got new rings the other day,Money be damned,I only want to do this once.Has anyone installed the head without ring compressors?If so how do you do it?The new rings are quite springy as compared to the old ones.heres my list so far:new gasket kit
                                       new clutch
                                       new rings
                                       new tapered roller steering bearings
                                       new bronze bushings(swingarm)
                                       dynaS ignition and green coils
                                       Cb750A wheels(alloy)
                                       newly upholstered cafe seat on
                                       stock pan.
                                       Rickman full fairing
now,Exhaust is an issue.probably going with a carpy yosh replica.not sure yet.                                   
its better to regret something you have done,than something you havent.Except playing with explosives.

Offline MCRider

  • Such is the life of a
  • Really Old Timer ...
  • *******
  • Posts: 14,376
  • Today's Lesson: One good turn deserves another.
Re: 73 cb750 project greasy
« Reply #44 on: January 18, 2010, 09:51:06 AM »
So I just ordered some Heavy duty cylinder studs,got new rings the other day,Money be damned,I only want to do this once.Has anyone installed the head without ring compressors?If so how do you do it?The new rings are quite springy as compared to the old ones.heres my list so far:new gasket kit
                                       new clutch
                                       new rings
                                       new tapered roller steering bearings
                                       new bronze bushings(swingarm)
                                       dynaS ignition and green coils
                                       Cb750A wheels(alloy)
                                       newly upholstered cafe seat on
                                       stock pan.
                                       Rickman full fairing
now,Exhaust is an issue.probably going with a carpy yosh replica.not sure yet.                                   
A couple of threads on this. I've always used regular screw type hose clamps, keep the buckles from being right on a ring gap. many people don't use anything on a stocker as the taper on the bottom of the cylinder sleeve, properly oiled up, will compress the rings, but you have to go slow and be careful.

Never seen a real ring compressor small enough first hand.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #45 on: January 19, 2010, 07:58:52 AM »
my buddy says the two of us can do it together,he has done it with a tiny screwdriver as he pushes the piston up.we will see.I look for certain subjects on the forums,but it seems as though you have to read everything to get to the subject.Search doesnt help as much as one would like.
its better to regret something you have done,than something you havent.Except playing with explosives.

Offline MCRider

  • Such is the life of a
  • Really Old Timer ...
  • *******
  • Posts: 14,376
  • Today's Lesson: One good turn deserves another.
Re: 73 cb750 project greasy
« Reply #46 on: January 19, 2010, 08:07:25 AM »
my buddy says the two of us can do it together,he has done it with a tiny screwdriver as he pushes the piston up.we will see.I look for certain subjects on the forums,but it seems as though you have to read everything to get to the subject.Search doesnt help as much as one would like.
That will work, just go slow and don't pinch a ring which will break it.

As far as searching, a few tricks. You should first go to the forum most likely to yield results. Don't forget the Tricks and Tips.  If not, you should hit the "home" button in the blue menu bar. This will open up the universe to the search. Then you must be good with your word choice, simple and distinct as possible. I typed in "ring compressor" in the search hitting "home" first. I got two pages worth, but the second one would have been good for you I think.

http://forums.sohc4.net/index.php?topic=62252.0

Having said all that, I personally don't mind if a member, especially a new one, opens up a topic that has had a lot of attention. It never hurts to revisit these things, as things do change, availablility of parts, maybe a new trick that hasn't surfaced yet, etc. Also, it allows a newbie to open some dialogue with a veteran, which is always nice.

In your case, the search would have been good for some background. But I'm not one to give you a hard time about it.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #47 on: January 19, 2010, 09:33:41 AM »
thanks MC.I havent got to that point yet.I have to remove my old cylinder studs first.I have heard and read a lot on the subject.Will post pics soon.I am getting antsy.I want this done and I want to ride again,I miss my bike.The weather up here has been unseasonably warm.
its better to regret something you have done,than something you havent.Except playing with explosives.

Offline bikerbart

  • Master
  • *****
  • Posts: 1,579
Re: 73 cb750 project greasy
« Reply #48 on: January 28, 2010, 10:21:23 AM »
soooo,I am brainstormin here.I really like the look of industrial age machines,jules vernes 20,000 leages under the sea sub type ,diifferent metals,rivets,gilding,beautiful scrollwork on surfaces,that sort of thing,the latest Cycle world has 2 of the coolest motorcycles I have ever seen.Triumph and Ducb bare metal customs,Awesome.When I am finished putting my bike together I will have 2 sets of bodywork.My original sunrise flake which Is sitting on a shelf out of harms way,polished alum,raw,chrome,painted all mixed up in a ratty but cool kind of way,not as cool as Shinya's work,but unfinished and deliberately rough.I can always make it pretty with my original tank etc.I am going to reproduce a left sidecover in hard wood then hand hammer copper sidecovers with rivets.Heres a couple of pics of Ideas and one of the beautiful Retro espresso machines our company sells and that I work on.Opinions?
its better to regret something you have done,than something you havent.Except playing with explosives.

Offline sangyo soichiro

  • Tuck
  • Master
  • *****
  • Posts: 2,167
  • ☢ the atomic playboy ☠
Re: 73 cb750 project greasy
« Reply #49 on: January 28, 2010, 10:36:55 AM »
Before I read the last post, I saw the pictures and the first thought that popped in my head was, "I hope he leaves that tank like that!  That's cool!"   8)
1974 CB 750
1972 CB 750 http://forums.sohc4.net/index.php/topic,57974.0.html
1971 CL 350 Scrambler
1966 Black Bomber
Too many others to name…
My cross country trip: http://forums.sohc4.net/index.php/topic,138625.0.html