Engine and frame numbers

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itsacbx
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Engine and frame numbers

Post by itsacbx »

Hey all, checked the all important numbers today as I am looking at acquiring a replacement motor as Im not confident in my ability to restore a CBX engine yet.Mine has a broken cam tower top and th bottom end looks a bit suspect also, although I havnt yet pulled the cases apart. Thats next.......

Engine number is CB1E-2004723
Frame number is 2022991, mfd 2/79
Is my engine the original - seems like I have a massive discrepancy between the numbers?
The engine Im considering buying is CB1E-2011938
Comments appreciated please.......
Thx

jnnngs
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Re: Engine and frame numbers

Post by jnnngs »

Hi,

Engine is a much earlier than the frame, so not original.

Engine and frame numbers are normally upto a few hundred apart - with the engine being the higher number.

Paul.

steve murdoch icoa #5322
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Re: Engine and frame numbers

Post by steve murdoch icoa #5322 »

Finding a running CBX engine for sale is rare.
Personal opinion only but if it a running engine, buy it.
My days of wanting/needing originality are behind me.

itsacbx
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Re: Engine and frame numbers

Post by itsacbx »

Thats what I suspected.......
Is there any redeeming value in the lower numbered engine, or should I go get the higher numbered engine that is complete and running? The higher numbered engine is much closer to the frame number but just like you, Im not that much of a stickler for that detail, nor is this going to be a show bike so its all pretty much irrelevant. More importantly, Im not sure I can tackle a rebuild starting from the crank up......

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FalldownPhil
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Re: Engine and frame numbers

Post by FalldownPhil »

What exactly is broken on your current engine? Is the entire tower broken or just a cap?
It seems to me that this engine is also already a runner. Maybe we can fix it and save you
a bunch of $$$.
In answer to your question, just putting in another engine is easy and the numbers won't
matter as it is already a replacement engine. I am still curious about your engine that is
in there now. CBX engines are pretty tough and can do 100,000 miles.
Best,
Phil
When you are up to your ass in alligators it is sometimes difficult
to remember that your objective was to drain the swamp !!

itsacbx
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Re: Engine and frame numbers

Post by itsacbx »

My engine has a broken cam cap.
I havnet opened up the cases so I cant say what if anything is wrong with the crank etc.
Engine was open when I got it, and the crank was exposed but it turns fine and rods go up and down, so I coated everything with preservative to keep it safe until I pull it apart...
Guess before I go any further I need to open it up Im thinkng....

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FalldownPhil
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Re: Engine and frame numbers

Post by FalldownPhil »

A cam cap is real cheap compared to buying a new engine.
Best,
Phil
When you are up to your ass in alligators it is sometimes difficult
to remember that your objective was to drain the swamp !!

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wyly
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Re: Engine and frame numbers

Post by wyly »

steve murdoch icoa #5322 wrote:Finding a running CBX engine for sale is rare.
Personal opinion only but if it a running engine, buy it.
My days of wanting/needing originality are behind me.
yup I let that opportunity slip by last summer, $2k for an unfinished running cafe project :doh: ...hindsight is so easy :?

when I paid a visit to SCM Bert took me on a tour and showed me an entire wall of shelves filled with engines :shock: ... shipping from europe would be pricey...
CBX a work in progress, still improving...GS1150EFE completed and awaiting modifications.....RD350, remnants in boxes scattered throughout the garage

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