With regard to what Mick45 wrote:
Hear, hear.
engine on ebay
Moderators: StephenRC45, Dave45
engine on ebay
Hello britten43.
Just a bit of clarification would be helpful (in dissipating healthy scepticism).
In the order of your post:
As (some of) the engine was used in the TT in the past with a long stroke set-up, then am I right in presuming that it has never been a Castrol Honda, or Honda Britain, engine?
I believe you’re saying that someone in the UK, who owns one of Joey Dunlop’s “factory” RC45’s, sold you the engine. As I know the whereabouts of a couple of formally documented ex-Castrol Honda (Britain) RC45’s, I’m naturally curious to know which of JD’s actual RC45’s is owned by the seller of the engine you have?
I understand the need to vent 4 stroke crank-cases (especially where down-stroke swept volume is not counteracted by up-stroke) to relieve (HP sapping) crank-case pressure, but I’ve always regarded “porting” as peculiar to 2 strokes (hence my earlier ‘comment’).
Regards,
Roger.
Just a bit of clarification would be helpful (in dissipating healthy scepticism).
In the order of your post:
As (some of) the engine was used in the TT in the past with a long stroke set-up, then am I right in presuming that it has never been a Castrol Honda, or Honda Britain, engine?
I believe you’re saying that someone in the UK, who owns one of Joey Dunlop’s “factory” RC45’s, sold you the engine. As I know the whereabouts of a couple of formally documented ex-Castrol Honda (Britain) RC45’s, I’m naturally curious to know which of JD’s actual RC45’s is owned by the seller of the engine you have?
I understand the need to vent 4 stroke crank-cases (especially where down-stroke swept volume is not counteracted by up-stroke) to relieve (HP sapping) crank-case pressure, but I’ve always regarded “porting” as peculiar to 2 strokes (hence my earlier ‘comment’).
Regards,
Roger.
engine on ebay
Hello Alasdair, and thanks for the example ZXR info. It just goes to show how apparently small things can, relatively, mean a lot.
Regards,
Roger.
Regards,
Roger.
engine on ebay
Hello britten43.
I see the engine, now on eBay under auction, has had a few bids placed… but the description still says “Standard 5 speed box” and “A very trick extra right hand gear change shaft”… which all seems quite puzzling (to me). However, a thought has occurred:
Is it possible that in order for the 'very trick' extra right hand gear change shaft to be in place, the 6th gear (as per standard) has had to be omitted from the gear-box?
Just curiosity.
Regards,
Roger.
I see the engine, now on eBay under auction, has had a few bids placed… but the description still says “Standard 5 speed box” and “A very trick extra right hand gear change shaft”… which all seems quite puzzling (to me). However, a thought has occurred:
Is it possible that in order for the 'very trick' extra right hand gear change shaft to be in place, the 6th gear (as per standard) has had to be omitted from the gear-box?
Just curiosity.
Regards,
Roger.
engine on ebay
There are still a lot more questions than answers as far as I’m concerned – and I have to say that my curiosity, particularly as to the gear-box, remains unsatisfied… because whatever happens to be the detailed truth about this aspect, it might indicate the true reality about other aspects of the engine.
So, as far as the gear-box is concerned, (for me) it’s like this:
If I had a wholly new 5 gear cluster cut, with each new gear-pair in the cluster having unique ratios (which no standard gear-pair actually had) I’d certainly not link “5” and “standard” when describing such a gear-box.
As “5” and “standard” have been used in the description my curiosity has (as ever) driven me to find a logical, thus, plausible explanation – and this is it:
Let’s say that, for whatever reason, 1st gear has been removed… such that the standard 2nd (in a 6 speed box) has now become 1st… and standard 3rd now = 2……….. up to standard 6th now = 5th. That would rationally (ratio…nally) explain “it has a high first gear, and the others are slightly higher than the equivalent 6 speed road box, i.e., ‘new 1st is higher than old 1st’, and so on up to new 5th (top) being higher than old 5th.
Could I have ‘hit the nail on the head?
The other thing I find ‘interesting’ in the description, etc., is the use of certain words and phrases, e.g., Tony Scott, Isle of Man TT, Joey Dunlops HRC RC45 factory race bike, this is a HRC KIT race engine… It all seems (to me) to be using words and phrases for the sole purpose of adding value through intimating ‘special uniqueness’.
I’m sorry to be so ‘pointing’, but I do wonder whether the engine would have far less (rather than more) value for whatever are its true characteristics and history.
I know... I’m a pain, simply cannot refrain, and sorry again, but there it is.
Regards,
Roger.
So, as far as the gear-box is concerned, (for me) it’s like this:
If I had a wholly new 5 gear cluster cut, with each new gear-pair in the cluster having unique ratios (which no standard gear-pair actually had) I’d certainly not link “5” and “standard” when describing such a gear-box.
As “5” and “standard” have been used in the description my curiosity has (as ever) driven me to find a logical, thus, plausible explanation – and this is it:
Let’s say that, for whatever reason, 1st gear has been removed… such that the standard 2nd (in a 6 speed box) has now become 1st… and standard 3rd now = 2……….. up to standard 6th now = 5th. That would rationally (ratio…nally) explain “it has a high first gear, and the others are slightly higher than the equivalent 6 speed road box, i.e., ‘new 1st is higher than old 1st’, and so on up to new 5th (top) being higher than old 5th.
Could I have ‘hit the nail on the head?
The other thing I find ‘interesting’ in the description, etc., is the use of certain words and phrases, e.g., Tony Scott, Isle of Man TT, Joey Dunlops HRC RC45 factory race bike, this is a HRC KIT race engine… It all seems (to me) to be using words and phrases for the sole purpose of adding value through intimating ‘special uniqueness’.
I’m sorry to be so ‘pointing’, but I do wonder whether the engine would have far less (rather than more) value for whatever are its true characteristics and history.
I know... I’m a pain, simply cannot refrain, and sorry again, but there it is.
Regards,
Roger.
engine on ebay
If the 6th (top) gear was removed, then 5th would become top gear and so (all other things remaining equal) the engine would be even more prone to over-reving.
But britten43 has (I think) already discounted the standard 6th gear having been removed, and has also explained that…
“it has a high first gear and the others are slightly higher than the equivelent 6 speed road box”
Removing 1st gear means the above statement would describe the remaining 5 gears, in so far as what used to be the standard 2nd gear has become a higher first gear, and so on.
Anyway, it’s all still rather intriguing – particularly 5 gears when every ’45 ever, i.e., road and race variant, always had (as far as I know) 6 speed gear-boxes.
To my mind the most plausible scenario is removal (loss) of the standard 1st gear; but, if I’m correct, why? There must be a reason!
Maybe britten43 could enlighten and also, perhaps, ‘shoot my conjecture down in flames’.
Regards,
Roger.
But britten43 has (I think) already discounted the standard 6th gear having been removed, and has also explained that…
“it has a high first gear and the others are slightly higher than the equivelent 6 speed road box”
Removing 1st gear means the above statement would describe the remaining 5 gears, in so far as what used to be the standard 2nd gear has become a higher first gear, and so on.
Anyway, it’s all still rather intriguing – particularly 5 gears when every ’45 ever, i.e., road and race variant, always had (as far as I know) 6 speed gear-boxes.
To my mind the most plausible scenario is removal (loss) of the standard 1st gear; but, if I’m correct, why? There must be a reason!
Maybe britten43 could enlighten and also, perhaps, ‘shoot my conjecture down in flames’.
Regards,
Roger.
engine on ebay
As per markrc45, I'd like to know too; and maybe the buyer could clear-up a few of the apparent 'peculiarities' relating to said engine.
Or if no force-v4 member did make the purchase, do any of you know who did buy it?
Tell me myob if you like, I'd not be offended.
Regards,
Roger.
Or if no force-v4 member did make the purchase, do any of you know who did buy it?
Tell me myob if you like, I'd not be offended.
Regards,
Roger.