Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
Blown Head Gasket XT600 Blown Head Gasket XT600
Register FAQ Calendar Today's Posts
Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by George Guille, It's going to be a long 300km... Bolivian Amazon

I haven't been everywhere...
but it's on my list!


Photo by George Guille
It's going to be a long 300km...
Bolivian Amazon



Like Tree4Likes

Reply
Page 5 of 5 1234 5
 
LinkBack Thread Tools Display Modes
  #61  
Old 5 Aug 2015
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
'83 to '87,

I just can't comprehend why you'd buy another head.
Reply With Quote
  #62  
Old 5 Aug 2015
Registered Users
Veteran HUBBer
  
Join Date: Aug 2013
Posts: 149
Quote:
Originally Posted by jjrider View Post
That's a '84-'85 jug.


Didn't you post about the valves being new or reworked on your current head ?
Before I got it, it had a cylinder,jug and timing chain replaced. I don't know if the valves were just cleaned up or there were replacements as well.
Reply With Quote
  #63  
Old 5 Aug 2015
Registered Users
Veteran HUBBer
  
Join Date: Aug 2013
Posts: 149
I just can't comprehend why you'd buy another head.[/QUOTE]

Just want to get it running right. I've got 2 other bikes but look the must forward to driving the XT

JJRider let me know if I can send it to you? And what you need.

Or tell me what years I should look for on the head.

Best
Greg
Reply With Quote
  #64  
Old 6 Aug 2015
Bobmech's Avatar
Registered Users
Veteran HUBBer
  
Join Date: Sep 2008
Location: BOP , New Zealand
Posts: 183
Quote:
Originally Posted by Bobmech View Post
IMO I think welding the head will soften the aluminium in that area, increasing the chance of future head gasket leakage, especially where the flame ring seals.
Once the welded area has been softened, there is also the risk of the exhaust valve seat next to it coming loose.

Bob
Hi Greg
regarding the above, & no offence to jjrider who is kind enough to offer you an option to fix your problem.

I'm an automotive mechanic, not an engine machinist.
But recently I asked a local very experienced & reputable engine machinist who does weld aluminium cylinder heads, if he could weld the gasket side/surface of an aluminium Honda 130HP outboard motor cyl head for me. And the above is what he told me. He said welding the head will reduce the hardness from 100 Brinell to approx 70 Brinell.

He didn't mention anything about the potential for valve seats coming loose, but that would depend on how hot the area around the valve seat gets & whether it gets softened/annealed when welding. Keep in mind the valve seats are an interference fit in the head.
And when a valve seat comes loose & falls out the result will usually cause serious damage to the piston, valve, & cyl head.

Bob
__________________
Remember that Assumption is the mother of all f**k-ups.
Reply With Quote
  #65  
Old 6 Aug 2015
xtrock's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Norway
Posts: 1,325
I really dont see the point shipping this, using hours of work when you can buy used one cheap and put it straight in. Then you never have to worry about new leak or valve seat problems.
Reply With Quote
  #66  
Old 6 Aug 2015
Registered Users
Veteran HUBBer
  
Join Date: Aug 2013
Posts: 149
I get it, and really appreciate the input.
I'm just trying to confirm what head to get as the motor has been put back together with what years?
This is causing the delay as I probably let a good head with rocker box go last night (ebay) when it might of been a good head.

if someone could please look at previous picture from yesterday and confirm a jug to head combination I should be looking for.

Previous head was 1JK00
Jug on bike 34K00 Y1
Reply With Quote
  #67  
Old 6 Aug 2015
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
Quote:
Originally Posted by xtrock View Post
I really dont see the point shipping this, using hours of work when you can buy used one cheap and put it straight in. Then you never have to worry about new leak or valve seat problems.

What are the chances a used head off Ebay will have good valves ? That was my point when asking about the valves in his current head, if they are good, why buy another head only to have questionable valves and seats. Now if his are bad/poor , different story. I've had to fix every used head I have gotten off Ebay, usually a reason the bike is being parted out, plus add in high miles with poor maintenance ect....

As to the welding, well everybody "knows it all " .I've done a few myself and know of quite a few that have been extensively reworked, all doing fine. People would be surprised at what is done to race engines to gain hp and they hold up. That said it would be a last option of course, if not needed no reason to. And yes, I HAVE been to college and went through metallurgy and welding . Did he ever say about the alloy used and the differences when welding?

I could have had this done and had 500 miles on the bike already, just frustrating trying to help and having the equipment and knowhow to do it and a lot of squibbling. I wasn't even considering charging for it other than return shipping.
Reply With Quote
  #68  
Old 6 Aug 2015
xtrock's Avatar
Registered Users
Veteran HUBBer
  
Join Date: May 2013
Location: Norway
Posts: 1,325
Ok i understand, if this is done free of charge its no problem. I was thinking hours of work and shipping cost, it get pretty fast expensive even in your country i would assume. Give it a try, not many people left that helps out like you do JJ
Reply With Quote
  #69  
Old 7 Aug 2015
Registered Users
Veteran HUBBer
  
Join Date: Aug 2013
Posts: 149
I think its great to be able to get various opinions and advise.
I appreciate this very much
You guys are a wealth of knowledge and keep guys like me riding or at least dreaming it will be soon
Reply With Quote
  #70  
Old 18 Aug 2015
Registered Users
Veteran HUBBer
  
Join Date: Aug 2013
Posts: 149
I'm going to keep an eye out for a head on ebay.
Can I use a TT head from the same years? Any issues? Any differences?

Thanks
Ex: Yamaha TT600 TT 600 Cylinder Head Assembly Camshaft Rocker Box Valve Cover | eBay
Reply With Quote
  #71  
Old 5 Sep 2015
Registered Users
Veteran HUBBer
  
Join Date: Aug 2013
Posts: 149
Anyone know where I can get the gasket/o ring for the middle dowel on the head? Mine needs replacing.
I can order part but want to see if I might get an alternate gasket locally?
lYamaha 90430 08178 00 90430 08178 00 Gasket | eBay
Reply With Quote
Reply
Page 5 of 5 1234 5

« Previous Thread | Next Thread »

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
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
Help needed. Advice, Stranded Chili/Arg border. Blown head gasket. Nick Ash Phtography Travellers' questions that don't fit anywhere else 3 1 Sep 2014 20:54
G650X stuck in Riga, Latvia, with blown head gasket, advice needed k1322 BMW Tech 2 28 Jul 2014 21:26
KLR650 2007, Blown Head Gasket, Stranded Chili/Arg border. Nick Ash Phtography Kawasaki Tech 1 24 May 2014 15:21
Help needed! KLR650 blown head gasket I think. Nick Ash Phtography Tech 1 22 May 2014 18:55
Errm ... HELP !!! Cylinder Head Gasket Akentigernfox SOUTH AMERICA 2 16 Mar 2013 14:59

 
 

Announcements

Thinking about traveling? Not sure about the whole thing? Watch the HU Achievable Dream Video Trailers and then get ALL the information you need to get inspired and learn how to travel anywhere in the world!

Have YOU ever wondered who has ridden around the world? We did too - and now here's the list of Circumnavigators!
Check it out now, and add your information if we didn't find you.

Next HU Eventscalendar

HU Event and other updates on the HUBB Forum "Traveller's Advisories" thread.
ALL Dates subject to change.

2024:

Add yourself to the Updates List for each event!

Questions about an event? Ask here

HUBBUK: info

See all event details

 
World's most listened to Adventure Motorbike Show!
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.

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.

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!



Five books by Graham Field!

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!

Your ad could be here, on EVERY page of the HUBB, or the whole website, or as many as you like!

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.

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 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.



All times are GMT +1. The time now is 07:19.

Contact Us - Horizons Unlimited Motorcycle Travellers Website - Archive - Privacy Statement - Top