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.

7 Litre Camel Tank Lets You Explore More, Click to Find out More!

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 28 Sep 2004
Max Max is offline
Registered Users
New on the HUBB
 
Join Date: May 2003
Location: Italy
Posts: 4
Oil Cooler on 80GS: is it really necessary?

Dear All,
I would like to know your opinion about the installment of an oil cooler on a 1991 80 GS (paralever).
Do you think that the Oil Cooler on an airhead is necessary ever, never or only if you are involved on a ride in a sunny desert? and why?
My opinions is that if something has to be more "refrigerated" on a BMW during an hot ride this is the cylinder, or the gear, not the basement.
Reply With Quote
  #2  
Old 29 Sep 2004
Moderator
Veteran HUBBer
 
Join Date: Mar 2001
Location: British Columbia
Posts: 239
To start with, cooling the oil will generate cooling for the entire engine. Oil circulates through the valve train, and splashes on the bottom of the cylinders and cylinder wall, which does cool the barrels.

As to whether this is really necessary, it is an open topic, particularly for the smaller engines. BMW choose not to mount a cooler on the R80 for a reason, but this doesn't mean that a hard working R80 in a hot environment would not benefit from one. There are two types of BMW oil coolers: the thermostatically controled units typically mounted on the 1000cc touring (full faired) models, and the later 'always open' type fitted as stock to the R100GS. The always open type helps a bit in terms of adding overall capacity to the oil system, but will slow warm up of the bike.

I have heard comments that on a Thermostatically controled unit, it might only open breifly from time to time in extreme circumstances, but that is when the real benefit is felt. I have also heard that in general the oil cooler equiped engines last longer, all other things being equal.

I purchased an older thermostatic unit for my R80, but haven't installed it yet. I don't consider it essential, and the exhaust has to be modified (to create space for the junction head, where it bolts into the oil filter housing - the non-thermo units are much more flush fitting). The interior of the oil cooler housing also needs to be changed - make sure you look into this before going ahead, a mistake in that area will be very expensive.


[This message has been edited by Timo (edited 28 September 2004).]
Reply With Quote
  #3  
Old 29 Sep 2004
AliBaba's Avatar
Registered Users
Veteran HUBBer
 
Join Date: Apr 2001
Location: Norway
Posts: 1,351
Why don’t you mount a dipstick with a temperature gauge?
Then you can see if the engine is running hot or not when you use it under your normal conditions..

I have a R80GS and has not mounted an oil-cooler. I might do but so far I have used the bike for 170kkm incl crossing Morocco, Sudan and Egypt in the summer.
Reply With Quote
  #4  
Old 29 Sep 2004
simmo's Avatar
Contributing Member
Veteran HUBBer
 
Join Date: Nov 2002
Location: melbourne
Posts: 557
My mechanic has removed the oil cooler from his r100gs. He has a small sump extension to give increased oil capacity. Oil cooler was prone to damage on rough roads and in falls.

You can replce the oil filter cover with one from non oilcooled bike or use bolts ( the same ones that fit the mono lever G/S shaft oil filler bolts) to plug the holes in the oil filter cover.


cheers

alec
__________________
Close to Antarctica and a long way from reality
Reply With Quote
  #5  
Old 29 Sep 2004
Contributing Member
Veteran HUBBer
 
Join Date: Jul 2002
Location: Sydney, NSW, Australia
Posts: 1,366
Thnbe oil cooler was added to teh R100GS as bmw found it overheated the oil on the autobarns!!!!! The R80 motors did not have this problem. So it is not necessary - adds complication and another failure point. On a standard R80 motor an oil cooler is money wasted.

Extending the sump downwards was agood idea on road going motorcycels - however off road motorcycles have lower sumps hit by rocks - leading to broken sumps and oil everywhere. I know two people who have done that with sumps lower that the GS ... yet to know any standard GS rider with the same probnlem.

__________________
---
Regards Frank Warner
motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S
Reply With Quote
  #6  
Old 29 Sep 2004
John Ferris's Avatar
Gold Member
Veteran HUBBer
 
Join Date: Feb 2001
Location: Reno,NV,USA
Posts: 564
I took the oil cooler off of my R100R and it it nearing 200,000 miles without any problems.
But for more information look at some previous posts at
http://www.horizonsunlimited.com/ubb...ML/000177.html
John
Reply With Quote
  #7  
Old 25 Sep 2008
Registered Users
Veteran HUBBer
 
Join Date: Oct 2002
Location: Stockholm - Sweden
Posts: 316
The BMW is an air cooled engine. An oil cooler will aid to keep the engine at more even temp and does cut down the peak temps.
When the oil gets too hot is breaks down (faster).

Still... the more parts that can cause trouble,... the moretrouble will ensue - -

Of cause it is worth installing an oil-cooler!

Do you ever ride in trafffic jam ?...
Ever got stuck in traffic ?...

Get the cooler!
__________________
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


 
 
 

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!


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.


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 14:53.