Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > BMW Tech

BMW Tech BMW Tech Forum - For Questions specific and of interest to BMW riders only. Questions comparing which bike is best etc go in the "Which Bike" forum.
Contact Overland Solutions for all your custom modifications and setup for overland travel.

Parts & accessories for adventure touring motorcycles including GPS mounts, panniers, luggage, protection, dry bags, camping gear, tools, books & DVDs.

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 29 Jan 2009
Registered Users
New on the HUBB
 
Join Date: Oct 2008
Location: Reno, NV / Vancouver, BC
Posts: 15
Anyone with the HPN lower 1st gear in their R100GS?

Hello there!

I have just had a HPN low 1st gear and a tall 5th gear installed as part of a complete rebuild of the gearbox on my 1993 R100GS. All of the work was completed at Ted Porter’s Beemershop near San Francisco.

Since reassembling the bike, I have now ridden it for approximately 30 miles. Everything seems to be running smootly except for a a new strange noise that I am unsure of: whenever I drive in 1st gear, the transmission makes a whining/whrring noise. It is very similar to the noise that a manual transmission car makes when driven in reverse. This noise only happens when moving, with the clutch out, in 1st gear.

Has anyone else installed the HPN lower 1st gear into their R100GS? How does first gear sound?

I have spoken with Ted Porter and he admits to not really knowing how the lower first gears sounds when being driven, and he suggested that I email HPN. I have done so, but I was also hoping to hear from those that have actually riden with this modification

Many thanks!! James
__________________
I find being spontaneous requires a surprising amount of preparation!
Reply With Quote
  #2  
Old 29 Jan 2009
Gummikuh's Avatar
Which way??
Veteran HUBBer
 
Join Date: Oct 2005
Location: Alice Springs
Posts: 172
HI james!


We have 1.and 5 done too. But there was no diffrent sound to before...

Its better to call HPN, emails get lost..... Call them and ask for Klaus Pepperl he speaks pretty good english!


Greetings from OZ Werner+Claudia
__________________
Just traveling
www.horizonsunlimited.com/tstories/longwayhome
Reply With Quote
  #3  
Old 29 Jan 2009
Registered Users
Veteran HUBBer
 
Join Date: Oct 2002
Location: Stockholm - Sweden
Posts: 316
First of all - very important!!!
Are you and your mechanic absolutetly sure he did install an X:ed 1st?


Second - which hypoid are you running. And,... how high up are you filling your gearbox?



Yes - the sprockets can whine.
Causes seems to possibly be "tight fit" and/or poor EP-hypoid.
Test Omega 690 80/90 GL7 (Magna Industrial Ltd., Hong Kong Omega Division, retailers all over the US). Links via e.g. Distributörer av Omega olja och fett såsom smörjolja och smörjfett - Smörjteknik Norden AB .


Is your gearbox getting warm or maybe even hot ?



Personal reflection on the low 1st. I'm running a 32/10 final drive and lack at least one full step down under the 1st... Sure, it is a great improvement on stock, but I really need crawing, not trotting, speed in first!


The 5th is ok, but I sure look for that 6th gear all the time anyway...
__________________
Drive Safely,
Albert
Reply With Quote
  #4  
Old 1 Feb 2009
Registered Users
New on the HUBB
 
Join Date: Oct 2008
Location: Reno, NV / Vancouver, BC
Posts: 15
THanks Werner+Claudia and Albert!


"First of all - very important!!!
Are you and your mechanic absolutetly sure he did install an X:ed 1st?"

No, not sure, but I will ask on Monday!

"Second - which hypoid are you running. And,... how high up are you filling your gearbox?"

Running new BMW synth gear oil filled to spec.

"Yes - the sprockets can whine.
Causes seems to possibly be "tight fit" and/or poor EP-hypoid.
Test Omega 690 80/90 GL7 (Magna Industrial Ltd., Hong Kong Omega Division, retailers all over the US). Links via e.g. Distributörer av Omega olja och fett såsom smörjolja och smörjfett - Smörjteknik Norden AB ."

Another fellow on ADV has reported that he too experiences the whinning but that it is slowly getting quieter.

At this point, after another 100 miles today, it seems to be running fine and I am not concerned. I will pass on what I hear back from HPN.

So, Albert, it sounds like you are actually riding your airhead of road!!

Cheers! James
__________________
I find being spontaneous requires a surprising amount of preparation!
Reply With Quote
  #5  
Old 1 Feb 2009
Gummikuh's Avatar
Which way??
Veteran HUBBer
 
Join Date: Oct 2005
Location: Alice Springs
Posts: 172
Hi James!

Which Oil you use? The manual says Castrol gpx (i think) 90 GL5.

To be honest i wouldn't use higher grade stuff. These Engines and the Gearbox are developed during the '60-'70 They are not made for all that new stuff.

Just give HPN a call maybe they can help you!


Greetings from OZ Wener+Claudia
__________________
Just traveling
www.horizonsunlimited.com/tstories/longwayhome
Reply With Quote
  #6  
Old 1 Feb 2009
Registered Users
Veteran HUBBer
 
Join Date: Oct 2002
Location: Stockholm - Sweden
Posts: 316
Quote:
Originally Posted by Gummikuh View Post
To be honest i wouldn't use higher grade stuff. These Engines and the Gearbox are developed during the '60-'70 They are not made for all that new stuff.
True - GL4, splash lubrication.

I've used Omega GL7 sticky-climbing-glueish super EP since about 1996. Smoother, much more quite, no metal shreeking when pulling out from gas-stops - tested this now for about 200 000km. There is no way I'll run any other kind of oil less I fail to get hold of Omega 690 80W/90.

What happened back in 1997 may explain why I am so determined on this aspect, as well as the broken final drive this summer.
Do this very simpel test:
Take a any kind of mechanical whisk from the kitchen assessoirs (I used a hand-powered) - spinn the whisk in the hypoid and look what happens. Then compare that with whisking Omega 690. When you do that, and see with your own eyes, and feel the difference in the whisks mechanical motions - then you know why I say what I do.

Most important question though: what happens to the large bearing?
Sorry, not even Omega 690 can stop it from failing at about 100 000km -

What sticks in your mind is however the even older than 1981-on gearboxes, older than the /7,... - those that have brass components; those that will be damaged by from GL4 and up. GL4 and up "attacks" brass.
All /7 can use the highest GL -

__________________
Drive Safely,
Albert
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 
Thread Tools
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
lower seat for R1150GS ? diederik BMW Tech 3 9 Feb 2010 17:23
Bike with lower seat hight SusiAustria Which Bike? 12 8 Dec 2008 21:48
R80 G/S Lower footrests ? sidlaws.fsbusiness.co.uk BMW Tech 3 9 Sep 2008 08:08
1VJ lower chain guide/tensioner? Yobbo Yamaha Tech 8 3 Jul 2008 15:08

 
 
 

NEW! HU 2015 Motorcycle Adventure Travel Calendar is now available! Get your copy now for some terrific travel inspiration!

HUGE, 11.5 x 16.5 inches, beautifully printed in Germany on top quality stock! Photos are the winning images from over 600 entries in the 9th Annual HU Photo Contest!

Horizons Unlimited 2015 Motorcycle Adventure Travel Calendar.

"The calendar is magnificent!"

"I just wanted to say how much I'm loving the new, larger calendar!"

We share the profit with the winning photographers. YOU could be in the HU Calendar too - enter here!

Next HU Eventscalendar

See all events

 

HU DVD Autumn Special!

Take 40% off Road Heroes Part 1 until October 31 only!

Road Heroes features tales of adventure, joy and sheer terror by veteran travellers Peter and Kay Forwood (193 countries two-up on a Harley); Dr. Greg Frazier (5 times RTW); Tiffany Coates (RTW solo female); and Rene Cormier (University of Gravel Roads).

The first in an exciting new series, Road Heroes features tales of adventure, joy and sheer terror by veteran travellers."Inspiring and hilarious!"

"I loved watching this DVD!"

"Lots of amazing stories and even more amazing photographs, it's great fun and very inspirational."

"Wonderful entertainment!"

Check it out at the HU Store! Remember to use Coupon Code 'HEROES' on your order when you checkout.



Scottoiler automatic chain oilers. The most important accessory for your next motorcycle adventure!


Renedian Adventures


Renedian Adventures

What others say about HU...

"I just wanted to say thanks for doing this and sharing so much with the rest of us." Dave, USA

"Your website is a mecca of valuable information and the DVD series is informative, entertaining, and inspiring! The new look of the website is very impressive, updated and catchy. Thank you so very much!" Jennifer, Canada

"...Great site. Keep up the good work." Murray and Carmen, Australia

"We just finished a 7 month 22,000+ mile scouting trip from Alaska to the bottom of Chile and I can't tell you how many times we referred to your site for help. From how to adjust your valves, to where to stay in the back country of Peru. Horizons Unlimited was a key player in our success. Motorcycle enthusiasts from around the world are in debt to your services." Alaska Riders

contest pic

10th Annual HU Travellers Photo Contest is on now! This is an opportunity for YOU to show us your best photos and win prizes!

NEW! HU 2014 Adventure Travel T-shirts! are now available in several colors! Be the first kid on your block to have them! New lower prices on synths!

HU 2014 T-shirts now in!

Check out the new Gildan Performance cotton-feel t-shirt - 100% poly, feels like soft cotton!


What turns you on to motorcycle travel?


Global Rescue, WORLDwide evacuation services for EVERYONE

Global Rescue is the premier provider of medical, security and evacuation services worldwide and is the only company that will come to you, wherever you are, and evacuate you to your home hospital of choice. Additionally, Global Rescue places no restrictions on country of citizenship - all nationalities are eligible to sign-up!


New to Horizons Unlimited?

New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!

Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80 G/S motorcycle.

Susan and Grant Johnson Read more about Grant & Susan's story

Membership - help keep us going!

Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events (22 this year!); we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.

You don't have to be a Member to come to an HU meeting, access the website, the HUBB or to receive the e-zine. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.


Books & DVDs

amazon

All the best travel books and videos listed and often reviewed on HU's famous Books page. Check it out and get great travel books from all over the world.


Motorcycle Express for shipping and insurance!

Motorcycle Express

MC Air Shipping, (uncrated) USA / Canada / Europe and other areas. Be sure to say "Horizons Unlimited" to get your $25 discount on Shipping!
Insurance - see: For foreigners traveling in US and Canada and for Americans and Canadians traveling in other countries, then mail it to MC Express and get your HU $15 discount!




All times are GMT +1. The time now is 15:42.