Gearbox Porn

newmann
Posts
24438
Joined
4/1/2008
Location
USA
Edited Date/Time 1/14/2016 10:45am
While you guys have all been wrapping yourselves up in A1 Gate, I've been busy fondling what the UK's Royal Mail just dropped in my lap. Courtesy of Vital Old School member StevieD and his company Phil Denton Engineering I now have one of the worlds trickest trannies for a 1974 CR250M Honda. Just a micropolished machined work of art.

Anyone who has spent time on a 73-74 CR250 knows 2nd and 3rd gear are good for about a year of abuse before they go to missing shifts. Back around 1998 I rounded up a complete set of new gears, shafts, shift forks and shift drum. Not an easy task back then and nearly impossible today. I sent them all to a CR machinist enthusiast and had them all matched, back cut, machined and shimmed to perfection and managed to get many good years out of it. Last few times it has been out over the past 4 or so years it's been tossing out of 3r'd a little. Been time to tear it apart and see what's up but scared of what I might find. Stevie posted up some CR480 gearbox bits they are making and I opened my mouth and stated I sure would like one for the early CR. In short order he replied back and said he could hook me up. Seems he knows a guy...Smile

My money pit CR just got a little deeper, but damn I am impressed with people who can build things. Who would have thought you could get a brand new custom built state of the art gearbox for a 43 year old dirt bike? Now I will have to doll the rest of it up and get some fresh suspension on it.





|
Uncle Tony
Posts
4149
Joined
6/30/2014
Location
New York, NY, USA
1/11/2016 12:37pm
Very nice
Bultaco
Posts
1745
Joined
1/20/2014
Location
Planet, VT, USA
1/11/2016 12:38pm Edited Date/Time 1/11/2016 12:47pm
Beauty.

Does your new transmission fix whatever the problem was that Honda built into it? Is it just a spacing/manufacturing tolerance problem?
newmann
Posts
24438
Joined
4/1/2008
Location
USA
1/11/2016 12:39pm
Braaaapppp!!




Uncle Tony
Posts
4149
Joined
6/30/2014
Location
New York, NY, USA
1/11/2016 12:43pm
Do you mind if I ask how much it set you back?

The Shop

newmann
Posts
24438
Joined
4/1/2008
Location
USA
1/11/2016 12:47pm
Bultaco wrote:
Beauty.

Does your new transmission fix whatever the problem was that Honda built into it? Is it just a spacing/manufacturing tolerance problem?
They fully engage and have a deep back cut to them for positive engagement. Looks good!



gt80rider
Posts
7159
Joined
4/19/2008
Location
Boulder, CO, USA
1/11/2016 1:23pm
Now that is bad ass, nice work.
WhipMeister
Posts
5266
Joined
8/15/2006
Location
Big D, TX, USA
1/11/2016 1:39pm
Good stuff. The 125s are just as bad. 2nd gear fork always tweaks and the dogs round off.
1/11/2016 2:05pm
I'd really like to use that guy in Florida to drop my 450 down to a 4, or even 3 speed. Cool stuff.
newmann
Posts
24438
Joined
4/1/2008
Location
USA
1/11/2016 2:32pm
Needs a Blackdiamond titanium treatment next...lol. Best part about a vintage racer is that a 1974 model is as modern as it gets in that class. Never need a new bike to keep up with the Joneses.

Oldnslo
Posts
205
Joined
8/9/2015
Location
USA
1/11/2016 3:06pm
So cool....
blackdiamond
Posts
1363
Joined
11/5/2015
Location
Grapevine, TX, USA
1/11/2016 3:15pm
That tranny looks amazing. I'm assuming he can do custom ratios?

I am scared to ask but how much do these things cost?
newmann
Posts
24438
Joined
4/1/2008
Location
USA
1/11/2016 3:51pm Edited Date/Time 1/11/2016 3:52pm
Uncle Tony wrote:
Do you mind if I ask how much it set you back?
73/74 g'box. £1310 (GB pounds) plus shipping. Not too bad, all things considered. It sounds much better in pounds.Laughing

I'm guessing the first set had a buttload more time involved figuring things out.
blackdiamond
Posts
1363
Joined
11/5/2015
Location
Grapevine, TX, USA
1/11/2016 3:56pm
That's about half of what I thought it would cost, I think that's reasonably cheap for something of that caliber.
HackMan162
Posts
534
Joined
2/16/2007
Location
Austin, TX, USA
1/11/2016 3:58pm
Let me get this straight? You spend £1310 for a British Tranny? Cool Woohoo
Uncle Tony
Posts
4149
Joined
6/30/2014
Location
New York, NY, USA
1/11/2016 4:17pm Edited Date/Time 1/11/2016 4:42pm
HackMan162 wrote:
Let me get this straight? You spend £1310 for a British Tranny? Cool Woohoo
I think that tranny was worth every penny or should I say pound? Vintage motocross isn't about money
Bigfoot
Posts
1197
Joined
4/1/2008
Location
USA
1/11/2016 4:21pm Edited Date/Time 1/11/2016 4:21pm
Quality porn and quality lube go together...hand in hand.

What oil will you use with these gear-shaped jewels?

HackMan162
Posts
534
Joined
2/16/2007
Location
Austin, TX, USA
1/11/2016 4:44pm
HackMan162 wrote:
Let me get this straight? You spend £1310 for a British Tranny? Cool Woohoo
Uncle Tony wrote:
I think that tranny was worth every penny or should I say pound? Vintage motocross isn't about money
I think you failed to see my humor. I agree. Well worth it.
newmann
Posts
24438
Joined
4/1/2008
Location
USA
1/11/2016 4:45pm
HackMan162 wrote:
Let me get this straight? You spend £1310 for a British Tranny? Cool Woohoo
Yes I did. And when I was fondling it I felt all tingly.Laughing
newmann
Posts
24438
Joined
4/1/2008
Location
USA
1/11/2016 4:46pm
Bigfoot wrote:
Quality porn and quality lube go together...hand in hand.

What oil will you use with these gear-shaped jewels?

Been running a full quart of Golden Spectro in her. Will inquire for proper lubage.
1/11/2016 4:47pm
HackMan162 wrote:
Let me get this straight? You spend £1310 for a British Tranny? Cool Woohoo
Uncle Tony wrote:
I think that tranny was worth every penny or should I say pound? Vintage motocross isn't about money
HackMan162 wrote:
I think you failed to see my humor. I agree. Well worth it.
Wink Laughing
1/12/2016 4:10am
Really glad you're pleased Newmann.

Stevie
jimmie
Posts
2262
Joined
8/21/2008
Location
Huntington Beach, CA, USA
1/12/2016 5:29am
But did you receive it by Christmas?
1/12/2016 7:15am
jimmie wrote:
But did you receive it by Christmas?
Must have ordered it last Christmas to have received it from royal mail..
newmann
Posts
24438
Joined
4/1/2008
Location
USA
1/12/2016 7:54am
jimmie wrote:
But did you receive it by Christmas?
Marc_Honda wrote:
Must have ordered it last Christmas to have received it from royal mail..
Laughing No, I told Stevie to wait till the holiday clusterf' was over to ship. Got here in about a week. Surprised that out local postal center didn't destroy the box running it through their sorter. I've gotten more than one empty package delivered before.
FreshTopEnd
Posts
13293
Joined
8/16/2006
Location
Sacramento, CA, USA
1/14/2016 10:40am
"keep up with the Joneses"

Gary or Dewayne?
YZ324
Posts
367
Joined
6/26/2014
Location
Cypress, TX, USA
1/14/2016 10:45am
newmann wrote:
Braaaapppp!! [img]https://p.vitalmx.com/photos/forums/2016/01/11/119432/s1200_Joe_Camera_full_card_130.jpg[/img]
Braaaapppp!!




Nice pic......Diamond Don's no doubt! Love those old CR's!!

Post a reply to: Gearbox Porn

The Latest