Honda CB750 Sandcast

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Topics - 4pots1969

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76
Engine Mechanical / Set News rubbers shock absorber of couple primary transmission
« on: April 26, 2014, 03:50:06 pm »
These parts are made in France by means of a subcontractor of the car industry, these rubbers have the same hardness Shore as the rubbers of origin and are subjected to a serious quality control.
Here is a file PDF of procedure for the change of 12 rubbers shock absorber of couple of the primary transmission.

Photos down are of a GOLDWING GL1000 but the principle is the same.

http://honda60-70s.net/Pieces/23110-300-030_FR/23110-300-030_fr.html

77
General Discussion / Too too cute..
« on: April 19, 2014, 07:16:17 am »
Too too cute..

78
Engine Mechanical / Special Copper washer used by Yamiya - Highly recommended for sandcast owners??
« on: April 12, 2014, 05:17:01 pm »
I received 16 CAP NUT + 16 special Copper washer used to improve the waterproofness and the oil pressing
Thank you for expressing me your opinion..

Yamiya : Special Copper washer used.
Reducing an oil leakage from the clearance between the cylinder and the cylinder head.
Highly recommended for sandcast owners...by Yamiya

http://www.yamiya750.com/index.php?main_page=product_info&cPath=21_51&products_id=2064


79
Engine Mechanical / Oil Pan Sandcast.. Painted where not painted??
« on: March 24, 2014, 06:22:01 pm »
I arrived has the phase of paint for the engine.. :D
I think that he stays without paint but I want to be sure!!
Who can confirm me that Oil Pan was not painted has the origin?  :-\
Thanks  ;)

80
French Sandcasts / More and more surprising!! VIN-1014046/E-1014138
« on: March 21, 2014, 07:48:40 am »
More and more surprising!!  :o :o :o :-[ :-\        

I did not think of seeing one day this Cover Clutch "9/10" reserved
for Engines Sandcast after period gone up on an engine Diecast???

The owner is formal: this clutch cover is of origin and was never changed!!
What would be moreover the interest to change a clutch cover 10 holes for
clutch cover "9/10" on an engine planned to receive a Clutch cover 10 holes??
It would be completely absurd!! :o
 
The Engine number VIN-1014046/E-1014138 (March 10th 1970) corresponds has the period
when Honda drew crankcases Sandcasts from its reserves to feed assembly lines and that
explains these errors and this total confusion..

If it is very real we are in the big nonsense..

81
General Discussion / The magic moment!!
« on: February 06, 2014, 04:53:16 pm »
I think that I shall have the clammy hands and the accelerated heart if I was opening this wooden big box...

1969 Honda CB750 Sandcast "pre-K1"

82
General Discussion / Why get bored and to ruin itself has to restore Sandcast??
« on: February 06, 2014, 11:21:53 am »
Why get bored and to ruin itself has to restore Sandcast??
Here is the solution!!

ＣＢ７５０レプリカモンキー


http://www.mini4temps.fr/galerie/honda-monkey-cb750-four-replica/

83
French Sandcasts / The Sandcast after The Sandcast... A myth?? No, just a reality!!
« on: January 15, 2014, 07:02:46 am »
Here are some numbers of engine Sandcast only listed in France after the official period Sandcast E-1007414 and baptized on this forum "French Sandcasts" They are in series 1014000 and 1017000...
All the engines Sandcast listed below has the clutch covers  of the engines Diecast after E-1007414 with 10 holes but with only 9 holes, this anomaly is visible on the last two photos.
The explanation in that is I consider simple, they did not have a cluth cover with 9 holes in the stock...
The demand was very important and they opted for this fast solution because it was necessary to produce and to sell.

This Sandcasts 14000/17000 has were sold in France approximately for the period of March has April 1970.
A photo is joined for every number of engine...



E-1014138/VIN-1014046 ?? (Very strong suspicions that the 1st engine of origin was an engine Sandcast..)
E-1014143/VIN-1014060
E-1014149/VIN-1014014
E-1014170/VIN-1017109 (no matching numbers)
E-1015552
E-1017116/VIN-1016877
E-1017118/VIN-1041129 (no matching numbers)
E-1017135/  no frame
E-1017144/VIN-1003541 (no matching numbers)
E-1017164/VIN-1015880   
E-1017180/VIN-   ??
E-1017193/VIN-1016884
E-1017196/VIN-1016877
E-1017199/VIN-1016882
E-1017417/VIN-1017272

 
 

84
Engine Mechanical / Cover clutch different on the first models Sandcast??
« on: May 09, 2013, 07:16:37 am »
Hello,

Here is he seems to me photos of first model " type Early " of cover clutch Sandcast.
His thickness is incredible and its weight is 236.5 grs (8,34 ounces) by comparison with
the later cover cluth the weight of which is 115.3 grs (4.06 ounces).
His thickness was divided by 2...

He was not painted has the inside of material anti-vibration (style Blackson)
Apparently the chromium-plating does not have was redone and seems original.

Who has a cover clutch identical on its Sandcast?
Have you other informations? Thanks for it..

Greetings.

Gérard

85
Engine Mechanical / Point cover no stamped "Made in Japan" on the first series Sandcasts?
« on: February 09, 2013, 08:53:52 am »
I restore a " French Sandcasts " number E-1017118.
I open this topic that I think that it is maybe a great information..

I have almost certainty that Point Cover of the first series Sandcast (Early) were not stamped "Made in Japan".
On parts list of 69-4 E7 Contact Breaker, no detail of "Made in Japan" in the drawing.. Why?
On parts list of the beginning of the year 1970, we see curiously the "Made in Japan" appear in the drawing??

I don't think at all that it is an oversight of the graphic designer because we know all the rigor of the Japanese people for this kind of small details..

If you look very carefully at the covers of the photo 011 jpg you see that the differences are glaring for embossing and dimensions...

In a French magazine dating July 1969 an article on the presentation of the CB750 Honda (pré-production) in the
Importateur Honda France and there curiously also no trace of this Made in Japan on the point cover...
Curious coincidence or irrefutable evidence?

Please look at the pics at the different height (approximately 8 mm), at the holes of screws and embossing
with subtle differences..
How many Sandcast were made with this point cover with no stamped " Made in Japan " ??
100? Who can claim to know the exact number..?

Vic World (WORLD MOTORCYCLES) contacted me in PM because for him, this point cover would have only equipped the pré-production..
I do not believe that it is the case, because I have just found in my archives a French magazine dated September 1969.
There, ...we speak no more prototype...It is the analysis of Sandcast of the man in the street...

On the photo below we see clearly the point cover is not stamped " Made in Japan "...
On the photo of the top we see clearly the marking " Made in Japan " on the cover of alternator...

We can thus deduct from it without making a mistake that the first series Sandcast of the people had
a point cover not stamped.

To you to judge...And I am taker of any information on the subject.

 

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