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Author Topic: 750 Engine numbers  (Read 1945 times)

Offline RGP750

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750 Engine numbers
« on: September 10, 2014, 02:17:01 PM »
Hi All
Can anyone date 2 750 engines from the following numbers please.?
2551936 on one and
b7500e1002850 on the other
Thanks
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1972 500/4
1973 CB175
1972 CB175
1959 BSA Super rocket
1927 960cc Matchless 'v' twin
1969 750 K0

Offline Green1

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Re: 750 Engine numbers
« Reply #1 on: September 10, 2014, 04:59:38 PM »
255 is a k6  1974 to 1976
100 would be a K0 1969 to 1970 and an early one at that.

Mick
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Offline RGP750

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Re: 750 Engine numbers
« Reply #2 on: September 10, 2014, 05:12:12 PM »
Thanks Mick
I just wanted confirmation.
These are the 2 engines i pick up tomorrow.
one has apparently run the cam ,don't know which yet.
Do you know if the heads are interchangeable?
cheers Rich
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1972 500/4
1973 CB175
1972 CB175
1959 BSA Super rocket
1927 960cc Matchless 'v' twin
1969 750 K0

Offline Green1

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Re: 750 Engine numbers
« Reply #3 on: September 10, 2014, 05:21:11 PM »
I think the heads changed slightly in about 73 different valve guides I think.
Pete or Ash will put me right if I'm wrong.

Mick
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Offline Bitsa (Ralph Wright - RIP)

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Re: 750 Engine numbers
« Reply #4 on: September 10, 2014, 06:50:51 PM »
Didnt the k0 only have one bolt near the chain tunnel where as the others have front and back?
Cheers
Bitsa
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Offline JamesH

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Re: 750 Engine numbers
« Reply #5 on: September 10, 2014, 06:55:46 PM »
Hello mate if one of those really is engine 2850 it could be a sandcast. If it is, you may have struck gold. Get some pics up. That engine alone could be worth £2k depending on condition...
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Offline RGP750

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Re: 750 Engine numbers
« Reply #6 on: September 10, 2014, 07:53:55 PM »
Well roll on tomorrow night,the fairly poor photos it could be a sand cast.
I'll let you know tomorrow. ;D ;D ;D ;D ;D+6
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1972 500/4
1973 CB175
1972 CB175
1959 BSA Super rocket
1927 960cc Matchless 'v' twin
1969 750 K0

Offline Bitsa (Ralph Wright - RIP)

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Re: 750 Engine numbers
« Reply #7 on: September 10, 2014, 08:03:35 PM »
If it is lucky git Rich and well done mate
Cheers
Bitsa
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Offline JamesH

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Re: 750 Engine numbers
« Reply #8 on: September 10, 2014, 08:20:09 PM »
Hope it is Rich - could be a great score...let us know and fingers crossed for you...
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Offline RGP750

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Re: 750 Engine numbers
« Reply #9 on: September 10, 2014, 08:32:26 PM »
kacking myself now,hope he dosen't change his mind.
Google seems to think sandcast went up to just over 7000.
gonna be a long day at work tomorrow.
I'll let you know as soon as i know :)
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1972 500/4
1973 CB175
1972 CB175
1959 BSA Super rocket
1927 960cc Matchless 'v' twin
1969 750 K0

Offline JamesH

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Re: 750 Engine numbers
« Reply #10 on: September 10, 2014, 08:45:19 PM »
Just keep him away from this forum and play it cool ha ha...
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Offline steff750

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Re: 750 Engine numbers
« Reply #11 on: September 10, 2014, 08:53:58 PM »
 ;) check that number again  b7500e don't look right too me check that the last digit is not a G instead of a 0 ,it may be a early f engine
 it should start CB750E -100~ then you are ok
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Offline RGP750

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Re: 750 Engine numbers
« Reply #12 on: September 10, 2014, 09:04:27 PM »
I won't know until i see them tomorrow,that's the numbers he has given me. :-[
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1972 500/4
1973 CB175
1972 CB175
1959 BSA Super rocket
1927 960cc Matchless 'v' twin
1969 750 K0

Offline RGP750

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Re: 750 Engine numbers
« Reply #13 on: September 10, 2014, 09:09:02 PM »
F series seem to have an "f" according to the net.
He text me the number and may have hit the 0 tw :-\ice (i Hope)
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1972 500/4
1973 CB175
1972 CB175
1959 BSA Super rocket
1927 960cc Matchless 'v' twin
1969 750 K0

Offline AshimotoK0

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Re: 750 Engine numbers
« Reply #14 on: September 10, 2014, 11:11:44 PM »
Think I have seen a 'B' like that before in a CB750 engine number but can't remember what it signifies. Sorry but doubt it's a sandcast.  It would be obvious anyway because of the surface finish plus a sandcast only has nine holes on the clutch cover as opposed to 10 on the diecast. Hope I am wrong!

Cheers .. AshD
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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.
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