|
|
25 Oct 2009
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2008
Location: West Wales, UK
Posts: 753
|
|
Rusty headers
Here's one that might jog a few memories.
I have the cylinder head off and on the bench. The exhaust headers are rusted into the ports, big time. Penetrating oil has been applied over several days. I've been attacking them with a cold chisel, but they won't budge.
Anyone had this problem and got round it? I'm reluctant to use heat because of the aluminium head. Or is that OK?
|
25 Oct 2009
|
Registered Users
Veteran HUBBer
|
|
Join Date: Aug 2009
Location: Dorset UK
Posts: 395
|
|
Alloy will expand quicker than steel - and the head does get a bit HOT when running !!!!
Heat head & when nice & hot, whack some ice inside the header & then ATTACK it.
|
25 Oct 2009
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2008
Location: West Wales, UK
Posts: 753
|
|
Quote:
Originally Posted by Pigford
Alloy will expand quicker than steel
|
That's what I needed to know, thanks.
Quote:
Originally Posted by Pigford
- and the head does get a bit HOT when running !!!!
|
Sure - but as hot as a blowtorch? Mmmm. Maybe.
He
Quote:
Originally Posted by Pigford
at head & when nice & hot, whack some ice inside the header & then ATTACK it.
|
Good idea.
|
25 Oct 2009
|
|
Registered Users
HUBB regular
|
|
Join Date: Sep 2009
Location: Melbourne
Posts: 65
|
|
removing headers
Hi Black dog,
Just to let you know, Aluminum melts at 650 C. You should only need about 300 C. There is no colour change when you heat aluminum. If its too hot to touch with a quick tap with the finger, it should be right.
Best of luck.
Cheers from Oz.
__________________
I'm not getting older; I'm just progressing through LIFE!! Harleys do not have a throttle- they have VOLUME control!!!
|
26 Oct 2009
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2008
Location: West Wales, UK
Posts: 753
|
|
Thanks for that.
|
1 Nov 2009
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2008
Location: West Wales, UK
Posts: 753
|
|
Sorted
But not by me
I must have put in hours with the head on the bench, using hammer and cold chisel, angle grinder, and lots of heat (I even caused a small fire in some nearby steel wool). Eventually, I was getting nowhere and afraid that I would damage the head, so I took it to a local bike shop. It took one of their guys two hours, welding a nut onto the stubs, using a slide hammer, and finally virtually burning them out with oxy. He said he almost couldn't do it, which made me feel a bit better.
But now the stubs are out, the new headers test-fitted, and it's all ready to go back together.
If I were fitting standard headers back on, I would be planning to remove them for a clean-up once a year, so that this kind of thing doesn't happen again. The new ones are stainless, so I should be fairly safe.
|
2 Nov 2009
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2009
Location: uk
Posts: 434
|
|
you should have used the needle type bearing removal trick when the outer case seizes you grind it away from the inside so its waffer thin then it should release any friction presure, in the case of the header stubs grind it thin in two places so you can pry/chisel a section free then roll the material inwards like those food cans/tins with a key
__________________
XT 630 SUPERMOTO
GSXR750L KMX200
RF900 & GSX400X Impulse Projects
3.9 V8 Rangerover
|
2 Nov 2009
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2008
Location: West Wales, UK
Posts: 753
|
|
I understand the principle, but I don't have a tool that could grind inside the header stubs like that. The nearest I have got is an angle grinder - far too big. The Dremel lookalike I have would have taken weeks
|
3 Nov 2009
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2009
Location: uk
Posts: 434
|
|
Quote:
Originally Posted by BlackDogZulu
. The Dremel lookalike I have would have taken weeks
|
yeh i learnt the hard way to get a good set of quality tools , i like the tools to do all the work cos i'm lazy
__________________
XT 630 SUPERMOTO
GSXR750L KMX200
RF900 & GSX400X Impulse Projects
3.9 V8 Rangerover
|
3 Nov 2009
|
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2009
Location: Wiltshire, UK
Posts: 119
|
|
Differential corrosion
Quote:
Originally Posted by BlackDogZulu
If I were fitting standard headers back on, I would be planning to remove them for a clean-up once a year, so that this kind of thing doesn't happen again. The new ones are stainless, so I should be fairly safe.
|
Just a quick word of warning from a newbie to the site (just bought a 1VJ I'm prepping for a Morocco trip) - True, the pipes won't rot, but as I understand it, stainless is a more dissimilar metal to aluminium than steel and will promote corrosion of the head, so you would be wise to still remove the stainless system annually and clean up the ports: the alloy will tend to corrode against the stainless, especially if you get it near salt - ie our winter roads, or cruising on a beach/beach racing
I've had real problems of this sort on winter commuter Guzzis with stainless guards/studs and alloy spacers/fork sliders.
BTW are they the Motad headers? Is the fit/finish good?
|
3 Nov 2009
|
Registered Users
Veteran HUBBer
|
|
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
|
|
Just use some coppergrease on the top of the headers that goes into the cylinder. Same wiht all bolts and nuts on the exhaust system.
|
3 Nov 2009
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2008
Location: West Wales, UK
Posts: 753
|
|
I intend to do just that, Jens - thanks.
Bob - thanks for that. I intend to loosen them off once a year, clean the joints out and recoat with Copaslip. I never want to have a job like this one ever again. I think it is over 30 years since I had to take something to a mechanic because I just couldn't do it myself. My pride doesn't like it.
Talking of Guzzis reminds me of one of the bikes I 'loved' most, my old 1979 V50II. It's the one I most regret selling. Fantastic bike. In fact, I like all the old Guzzis, and I plan to get a T3 or T5 to go touring with one day. Not so keen on the newer ones, though.
|
3 Nov 2009
|
|
Registered Users
HUBB regular
|
|
Join Date: Sep 2009
Location: Melbourne
Posts: 65
|
|
Coppergrease verses Nickle based anti seize
Quote:
Originally Posted by Jens Eskildsen
Just use some coppergrease on the top of the headers that goes into the cylinder. Same wiht all bolts and nuts on the exhaust system.
|
Hi all,
If you use a Nickle based anti seize, you will not get the reaction between Aluminium - Stainless & copper.
Check engineering supplies for Nickle based product specially made for Stainless steel.
Cheers from Oz.
__________________
I'm not getting older; I'm just progressing through LIFE!! Harleys do not have a throttle- they have VOLUME control!!!
|
4 Nov 2009
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2009
Location: uk
Posts: 434
|
|
never seez by bostic from cromwell tools is a good one i got mine years ago it lasts for ages
__________________
XT 630 SUPERMOTO
GSXR750L KMX200
RF900 & GSX400X Impulse Projects
3.9 V8 Rangerover
|
4 Nov 2009
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2008
Location: West Wales, UK
Posts: 753
|
|
Is it up to handling exhaust temperatures?
|
Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
Check the RAW segments; Grant, your HU host is on every month!
Episodes below to listen to while you, err, pretend to do something or other...
2020 Edition of Chris Scott's Adventure Motorcycling Handbook.
"Ultimate global guide for red-blooded bikers planning overseas exploration. Covers choice & preparation of best bike, shipping overseas, baggage design, riding techniques, travel health, visas, documentation, safety and useful addresses." Recommended. (Grant)
Ripcord Rescue Travel Insurance™ combines into a single integrated program the best evacuation and rescue with the premier travel insurance coverages designed for adventurers.
Led by special operations veterans, Stanford Medicine affiliated physicians, paramedics and other travel experts, Ripcord is perfect for adventure seekers, climbers, skiers, sports enthusiasts, hunters, international travelers, humanitarian efforts, expeditions and more.
Ripcord travel protection is now available for ALL nationalities, and travel is covered on motorcycles of all sizes!
What others say about HU...
"This site is the BIBLE for international bike travelers." Greg, Australia
"Thank you! The web site, The travels, The insight, The inspiration, Everything, just thanks." Colin, UK
"My friend and I are planning a trip from Singapore to England... We found (the HU) site invaluable as an aid to planning and have based a lot of our purchases (bikes, riding gear, etc.) on what we have learned from this site." Phil, Australia
"I for one always had an adventurous spirit, but you and Susan lit the fire for my trip and I'll be forever grateful for what you two do to inspire others to just do it." Brent, USA
"Your website is a mecca of valuable information and the (video) series is informative, entertaining, and inspiring!" Jennifer, Canada
"Your worldwide organisation and events are the Go To places to for all serious touring and aspiring touring bikers." Trevor, South Africa
"This is the answer to all my questions." Haydn, Australia
"Keep going the excellent work you are doing for Horizons Unlimited - I love it!" Thomas, Germany
Lots more comments here!
Diaries of a compulsive traveller
by Graham Field
Book, eBook, Audiobook
"A compelling, honest, inspiring and entertaining writing style with a built-in feel-good factor" Get them NOW from the authors' website and Amazon.com, Amazon.ca, Amazon.co.uk.
Back Road Map Books and Backroad GPS Maps for all of Canada - a must have!
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 R80G/S.
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 all over the world with the help of volunteers; 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, or ask questions on the HUBB. 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.
|
|
|