ADVrider

Go Back   ADVrider > Bikes > Old's Cool > Airheads
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 01-15-2008, 12:13 PM   #1
Lornce OP
Lost In Place
 
Lornce's Avatar
 
Joined: Aug 2003
Location: Way Out There.
Oddometer: 17,377
My Garage Of Doom.

"Abandon hope, all bikes that enter here..."






Merged Thread Alert:

R100GSPD HPN-esque build!

R90/6 psuedo-restoration!

Buell S2 Thunderbolt restoration!

Buell S3 Thunderbolt touring prep!

Buell S1 Lightning Hooligan Redux!

It's all here under one roof... and more.

Cool stuff happens to a DR650, KLR 650, 640Adv, and Buell Ulysses, too.
But we can't talk about that here.






















































Okay, I wasn't going to post anything here about it but I'm thinking you guys might prod me to keep going and get it finished before spring arrives.

Basically I'm planning to do a complete motor overhaul on the bike, top and bottom ends. It's been burning oil like crazy since an incident last summer that saw it wallow and drown in a deep mud hole. I'm doing the whole motor because I'm not convinced the damage was limited to the top end. Plus, the bike had a history of a bad oil pump early in it's life during the PO's watch and only the big ends and oil pump were replaced (I've never trusted the bottom end), so I'm doing the whole enchilada.

I've got a good '77 R100S bottom end laying around that I was hoping to use to form the basis of the rebuild/replacement engine. (Anyone know why the '92 timing case shouldn't bolt right up to the '77 block?) This will of course, permit use of the '92's ignition trigger and the post '81-type Andrews cam I've got laying around saying "use me in a cool bike".

Main bearings in the block and main and big end journals on the '77 crank are in top shape and since I've already got the crank out of the block I'll probably have it dynamically balanced. If the '77 block presents "issues" I'll just replace the '92's main brgns and use it.

I've been using this '92 with a modded high compression 1050cc '77 RS top end for the last couple of years and it works quite nicely in the mid range with the stock '92 cam. I'm likely going to stick with that top end combination along with the addition of the Andrews cam which is a high lift short duration type (I'll dig up the numbers as I'm able, unless one of you have them handy?) which should further increase the midrange and top end urge.

Carburation is handled by a pair of modded '77 vintage 40mm Bings. No need to change those as they work well to provide good power, reliable service and reasonable economy.

The plan is to continue using this bike as before for all around riding chores from commuting to quiet evenings in the country to weekend sprints with the sporty-boys to extended camping/touring adventures. ie: It has to remain reliable and maintain it's useful extended fuel range. fwiw, since the high cr 1050cc top end transplant it's gently ridden range went from 550kms to 700kms from it's 35 liter tank. A 25% improvement in economy and power. I was pleased with that result.

I'll post pics of the disassmbly as it begins (in a good friend's heated garage!) in a few days.

D'I miss anything?
Attached Images
 

Lornce screwed with this post 07-10-2014 at 09:50 PM
Lornce is offline   Reply With Quote
Old 01-15-2008, 12:54 PM   #2
Stagehand
+/- V TDSPP
 
Stagehand's Avatar
 
Joined: Oct 2004
Location: Shawangunks
Oddometer: 24,971
well, I'm in.
__________________
Unintentional psychokinesis.
Stagehand is online now   Reply With Quote
Old 01-15-2008, 01:03 PM   #3
clevishook
stevedore
 
clevishook's Avatar
 
Joined: Aug 2006
Location: Fort Lauderdale
Oddometer: 1,479
I'll be watching the progress of both you and stagehand. Great projects.
clevishook is offline   Reply With Quote
Old 01-15-2008, 01:35 PM   #4
Eurobiker
Vintage Cat Herder
 
Eurobiker's Avatar
 
Joined: Apr 2002
Location: Albuquerque, NM
Oddometer: 5,898
I'd send the trans off for bearing check, shimming, circlip mod and nylon shifter roller replacement with K-Bike steel one.
__________________
Mark

If I agreed with you, we'd both be wrong.



Eurobiker is offline   Reply With Quote
Old 01-15-2008, 01:51 PM   #5
929bladerunner
Adventurer
 
929bladerunner's Avatar
 
Joined: Jun 2007
Location: Paradise Island (UK)
Oddometer: 37
Nice one Lornce, I'm on the verge of buying an old GS that I will want to strip/re-build (mainly cosmetic). I'll br wathcing and learning.
929bladerunner is offline   Reply With Quote
Old 01-15-2008, 02:59 PM   #6
Stagehand
+/- V TDSPP
 
Stagehand's Avatar
 
Joined: Oct 2004
Location: Shawangunks
Oddometer: 24,971
you said overhaul the top end- gonna go all the way?

how many miles on this thing, again?

Are you gonna touch anything aft of the tranny? (scope creep )
__________________
Unintentional psychokinesis.
Stagehand is online now   Reply With Quote
Old 01-15-2008, 07:07 PM   #7
kahoon
who's yer daddy??
 
kahoon's Avatar
 
Joined: Jun 2006
Location: Toronto, CANADA
Oddometer: 2,392
Quote:
Originally Posted by Lornce

[snip]

The plan is to continue using this bike as before for all around riding chores from commuting to quiet evenings in the country to weekend sprints with the sporty-boys to extended camping/touring adventures.

[...]
What about playing in the dirt with your poser buddies around Hockley, and the '08 P2D

Look forward to watching the rebuild I've been thoroughly enjoying of the 9fiddy rebuilds thread in the OC.
kahoon is offline   Reply With Quote
Old 04-22-2010, 06:54 PM   #8
Lornce OP
Lost In Place
 
Lornce's Avatar
 
Joined: Aug 2003
Location: Way Out There.
Oddometer: 17,377
'74 R90/6: What Would YOU Do?

http://toronto.craigslist.ca/tor/mcy/1703827368.html

'74 R90/6 For Sale























Lornce screwed with this post 06-27-2010 at 06:17 AM
Lornce is offline   Reply With Quote
Old 04-22-2010, 06:57 PM   #9
norton73
drinkin'
 
norton73's Avatar
 
Joined: Dec 2003
Location: Beautiful Downtown Springville, Alabama
Oddometer: 8,259
Buy!

Good thing it's probably at least 1500 miles from me.
__________________
Loose nut holding the handlebars
He’s one of those who knows that life is just a leap of faith. Spread your arms and hold your breath, always trust your cape. Guy Clark "The Cape"
norton73 is offline   Reply With Quote
Old 04-22-2010, 07:12 PM   #10
wirewrkr
the thread-killer
 
wirewrkr's Avatar
 
Joined: May 2008
Location: HIGH desert
Oddometer: 4,297
Quote:
Originally Posted by Lornce
Uhh, Duhh!!
What do you think we would do?
If you're hesitating it's probably gone already.
__________________

www.wirewerkes.com
KILL YOUR TELEVISION !!!!
wirewrkr is offline   Reply With Quote
Old 04-22-2010, 07:24 PM   #11
blaine.hale
Beastly Adventurer
 
blaine.hale's Avatar
 
Joined: Feb 2009
Location: Atlanta, Ga
Oddometer: 2,855
That's too good of a price to be true honestly.
I'd be skeptical.
I paid more for one in muuuuuch worse condition.
__________________
1974 BMW R90 /6
1968 Bultaco Matador MK3
1973 BMW R75 /5 Toaster LWB
1969 Bultaco Bandido MK2
2013 Husqvarna Terra TR650
blaine.hale is online now   Reply With Quote
Old 04-22-2010, 07:44 PM   #12
Cellar Rat
Not Done, Yet!
 
Cellar Rat's Avatar
 
Joined: Jul 2004
Location: True North
Oddometer: 27
You've GOT to follow up on this.

Lornce, run, don't walk, to nail that down. It might be too good to be true, but you won't know unless you look. I lucked into a similar situation last week, and another boxer's arrived in my garage, at a great price.
Cellar Rat is offline   Reply With Quote
Old 04-22-2010, 08:08 PM   #13
Cordless
Two Wheel Addict
 
Cordless's Avatar
 
Joined: Sep 2006
Location: ABQ, NM
Oddometer: 2,010
Are you nuts? There's at least 6 ADVrider types calling on this bike to buy it from underneath you.

Show up at the seller's location tomorrow morning early with $1600 and buy that beauty. Whatever's wrong with her, we can help you. You just have to do the work.
Cordless is offline   Reply With Quote
Old 07-17-2010, 08:55 PM   #14
Lornce OP
Lost In Place
 
Lornce's Avatar
 
Joined: Aug 2003
Location: Way Out There.
Oddometer: 17,377
Quote:
Originally Posted by blaine.hale
That's too good of a price to be true honestly.
I'd be skeptical.




Some new throttle cables and a final drive seal and gasket to go and it'll be ready for the road.





So far we're up to about $1780 including a billet triple clamp, freshly painted bodywork, seat and a few other doo dads. Prolly gonna hit $1840 before it's all over.

This is killing me.







Lornce is offline   Reply With Quote
Old 08-01-2010, 08:46 AM   #15
Lornce OP
Lost In Place
 
Lornce's Avatar
 
Joined: Aug 2003
Location: Way Out There.
Oddometer: 17,377


Ta, Planktonn.

Lornce is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 07:47 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014