|
|
3 Jul 2014
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2013
Location: Norway
Posts: 1,364
|
|
Headcover fit from new models? Update!
Do the headcover from 1998mod fit my 93mod, what changes was made on the next engine? Is it any point changing only headcover or is it best changing cylinder/headcover in one unit for best fit?
Last edited by xtrock; 5 Jul 2014 at 21:44.
|
4 Jul 2014
|
Registered Users
Veteran HUBBer
|
|
Join Date: Sep 2012
Location: Middle USA
Posts: 349
|
|
The Rocker box and head should be replaced as a matched pair. I know some on eBay sell them separate, but this is not good. The cam bearing function is the combination of the two and should be matching to assure a proper clearance. You "MIGHT" be able to get by, but do you want to take a chance?
My opinion, I am sure others will jump in...
I do not know if the 89 head will fit the later model.
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
|
4 Jul 2014
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
|
|
Yep what Steve said , the head and cover go together unless you remachine the bores together like I had to on one of mine. I'm sure quite a few can be swapped around, depending on how Yamaha original located the parts when machining them, but it would be a crap shoot.
Still have the oil leak huh? Maybe it's the head itself that has a flaw.
|
4 Jul 2014
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2013
Location: Norway
Posts: 1,364
|
|
Ok i understand, yep leaking never stop. The strange thing is that i have located it to be beetween front and rear screw left side at the plug cap. I really dont see how only this small area can be uneven, stupid me came just now came up with the idea of measure if there is a gap when cover is on without sealent. How much can the sealent fill up?
|
5 Jul 2014
|
Registered Users
Veteran HUBBer
|
|
Join Date: Sep 2012
Location: Middle USA
Posts: 349
|
|
I don't have a solution short of replacing the head and rockerbox as a pair but I had a similar problem with an 82 HONDA XL500. I understand this is quite common with that model as they do not have enough bolts to evenly hold the rocker box in place. I tried several times using different sealer, letting it sit for days to dry and NOTHING solved it. I later sold it on and next owner replaced the head and rocker box to solve it....
Steve
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
|
5 Jul 2014
|
Registered Users
Veteran HUBBer
|
|
Join Date: Dec 2010
Posts: 114
|
|
Sort of sounding like maybe the faces are not flat or at some point in past its had something jammed in to lever it off maybe?
If you can find someone clever they maybe able to machine the mating faces of the head and camhousing flat then take the bore then bolt both together and remachine the hole the camshaft runs in to the correct size..
Alternatively the machinist may say 'what are you sodding around with bloody old rubbish for?'....trouble is some of this bloody old rubbish tends to keep working long after some newer stuff has deceased..
I'd say your options are machining or another head and cam housing..
|
5 Jul 2014
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2013
Location: Norway
Posts: 1,364
|
|
Never have been any problem with leak before, bike has 35000km and the only reason i did the seal because of the O ring leaked on the side of cover. I had an idea, what if i just put minimum of sealent around the cover and add some more where the leak problem is? Just thinking adding even around gives no help in a problem area, does it sound way out? Or maybe iam wrong and there problem is a high spot that makes the seal go away in that area, next time i will put the cover back and try to get feeler gauge in there and check clearance.
Last edited by xtrock; 5 Jul 2014 at 15:24.
|
5 Jul 2014
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
|
|
A feeler gauge should let you know what your dealing with. It's just weird that one of the sealants didn't fix it, the oil isn't pressurized up there so it is just flung or running past that area. Nothing should be forcing it out.:confused1:
|
5 Jul 2014
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2013
Location: Norway
Posts: 1,364
|
|
|
5 Jul 2014
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2013
Location: Wisconsin, USA
Posts: 827
|
|
Take the mount plate off to gain good access to the area and grind a "V" groove the length of the crack on fill it all with JB Weld.
A true TIG aluminum welded fix would be best(take the cover off ), but the JB may just work.
I would have thought a leak from that area would show up in the back side of the cap not up by the front, sure there isn't more of a crack on the other side of that area?
|
5 Jul 2014
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2013
Location: Norway
Posts: 1,364
|
|
Quote:
Originally Posted by jjrider
Take the mount plate off to gain good access to the area and grind a "V" groove the length of the crack on fill it all with JB Weld.
A true TIG aluminum welded fix would be best(take the cover off ), but the alu stick just work.
|
Yeah the TIG was my fear hehe. I have the alustick so i think i give it a try, i have grinded i little as you see in pict just to check if its deeper. First it looked like just crack in top surface, isnt it strange that so mch oil can come out in the top of the cover after 2hours riding?
Is this possible to do on the cover?
https://www.youtube.com/watch?v=hHvrE1Cd5Eg
Last edited by xtrock; 5 Jul 2014 at 22:47.
|
6 Jul 2014
|
Registered Users
Veteran HUBBer
|
|
Join Date: Sep 2012
Location: Middle USA
Posts: 349
|
|
That is a stress point, the engine mount is flexing the crack, more so at speed. This means that you will have to have it professionally welded, hopefully it will not warp. If this were not a stressed area, you could seal it with JB weld. Expect the worst. Hope for the best. I expect a good heli arc welder can "fix" it. He may grind out a "V" as well, It would be best if you can soak the cover in solvent to get as much oil out as you can. If not, oil will try and seep out of the crack during welding, not good.
Steve
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
|
6 Jul 2014
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2013
Location: Norway
Posts: 1,364
|
|
So you dont think that the alu stick can fix this? When we talk about heat, what is best for this, heat up to 350degrees for alustick or do TIG? Dont want anything else to get damaged, iam thinking its best doing this job with cover on engine so it wont bend heating.
This is the Alustick
http://www.ebay.com/sch/i.html?_sop=...ardweld&_frs=1
And how thick is alu at the point i want to fix? Seems strange if its only my engine that its happend to, hope someone else have done the repair.
Last edited by xtrock; 6 Jul 2014 at 02:28.
|
6 Jul 2014
|
Registered Users
Veteran HUBBer
|
|
Join Date: Sep 2012
Location: Middle USA
Posts: 349
|
|
Since this is a stress point, NOTHING short of a full aluminum weld will be strong enough. Engine torque will keep breaking the glue or weak weld. I don't think you can weld it on the engine due to the heat involved and the oil. You will most likely have to completely dismantle the rocker box, remove all the parts and seals as it will get very hot from the welding. Hopefully if the welder is good, he will preheat the whole piece then weld it and let it cool naturally, hopefully it will not warp.
__________________
'84 XT600 is now bored to 2nd oversize and new OEM pistons and rings installed. No more smoking.
|
6 Jul 2014
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: May 2013
Location: Norway
Posts: 1,364
|
|
Ok i understand, but what you mean by stresspoint? I think i will try with the wizard weld, this i can do with nothing removed. The temp on a TIG weld is extreme and iam more scared to damage the cover than not getting sealed. This engine monting is only for stability, its not like the engine is hanging after this monting. I was out riding now and had one hand on the engine on different rpm, cant even feel vibration.
|
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
|
|
|
|
Next HU Events
ALL Dates subject to change.
2025 Confirmed Events:
- Virginia: April 24-27 2025
- Queensland is back! May 2-4 2025
- Germany Summer: May 29-June 1 2025
- CanWest: July 10-13 2025
- Switzerland: Date TBC
- Ecuador: Date TBC
- Romania: Date TBC
- Austria: Sept. 11-15
- California: September 18-21
- France: September 19-21 2025
- Germany Autumn: Oct 30-Nov 2 2025
Add yourself to the Updates List for each event!
Questions about an event? Ask here
See all event details
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.
|
|
|