I bought a set of cams out of a hurricane and just wondered if there was a part number on them that i could check to make sure they really are from a hurricane?

Thanks
Ryan

 

I will be installing my hurricane cams in my cb1000 and i just wondered if there were any parts/maintenance i should do while i was in there.

Thanks
Ryan

 

No use to you unless you bought the head and carrier/shells with it !

They are machined at factory to match, you can't just throw cams from
one head to another without machining to match

Merged threads

essentially same content matter

 

Ive done cam swaps before in different applications and have never had that problem.

 

Sprock, old friend, sometimes you just have to learn from your mistakes.
I guess this may well be one of those times.
Experience and the combined knowledge of over 140 1000F owners sometimes just isn't enough.............

you go ahead Lilryan and good luck to you.
But don't expect too much help if it goes wrong.
We did warn you.........................

 

so what do you do when you would need to replace a cam? You have to get a whole new topend? How does this differ from other applications where you can by aftermarket cams, such as the honda cars?

 

Lilryan;

no wish to rain on your parade (and I don't wish to get involved in a highly technical argument because I am not speaking from experience)

but the Haynes Manual (for the CBR) states (pg 55, sec.9) :

"If the camshaft bearing surfaces are scored or excessively worn, it is likely that the renewal of both the cylinder head and camshafts will be necessary. This is because the camshafts run directly in the cylinder head casting, using the alloy as a bearing surface".

It then goes on to make some disclaimers and give advice as to potentially fitting a needle roller conversion.

So; like it or not, that is the take from the Hurricane end of the camp.

However, what you're doing is a little different in proposing to fit them to a CB 1000. So maybe it could work, if the CB has a different bearing set-up to the CBR.

Supplementary questions :

Is the distance between valves the same?

Hell, is the overall camshaft length the same?

Bearing journals at the same distance?

The CBR camshaft gives a higher lift and longer dwell than the CB cam. Are you absolutely happy that there is enough room for all the valves and the piston to happily co-exist in the combustion chamber (at 10,000 rpm) with those changes?

I'm sure you have already done this research and satisfied yourself that it all works. I guess a CB Forum would answer those questions, if you haven't already done so.

Whilst it would appear from one of the earlier comments that it is a doable thing; I would not necessarily assume that it is a straight bolt-on conversion.

Otherwise, maybe Honda would have done it.

 

I have just read in a few places where it had been done, but not much more information than that. That is why i thought it was doable. I gave 50bucks for the cams, so im not out that much if it doesnt work. The carbs should be a simple bolt on, but not might be of much benefit if the cams dont work. I did read one example where someone did just the carbs and they said it ran great.

 

Fair call mate, I'm not suggesting that it's impossible; maybe, that we're just not the right people to ask.

Go off and have a scour of the CB Forums and come back to us with the results of your research, then we might be better able to answer any questions you may still have.

Cheers
TK

 

Umm I found quite a few affirming it can be done and in one case the conversion
was reverted back to stock as the low end grunt the Big One is known for was lost
when the 1000f cams went into it.

Let us know how you make out man - this is indeed interesting