The four chrome cylinder head acorn (my term?) nuts have what appears to be a copper washer beneath it. Can someone tell me why it isn't a "standard" washer? Just Curious ...
-
Required reading for all forum users!!!
Welcome!
Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.A note to new registrants...
All new forum registrations must be activated via email before you have full access to the forum.A Special Note about Email accounts!
DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.A note to old forum members...
I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.
Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...
-
Returning Visitors
If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.
If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.
Cylinder Head Nut's Washer ...
- Thread starter Mr.humbucker
- Start date
Well, my day is complete and now I know! Thanks for the quick replies!
Steve
GS Whisperer
And now for the REST of the story. :-k
Oil comes up around the two rear studs. That is why you have an oval o-ring around them at the base gasket. Oil travels up around the stud through the cylinders. When it gets to the head, there is an angled passage that takes it to another passage that runs under the intake cam bearings. There is also a passage in the head that leads to a similar cam bearing feed for the exhaust cam bearings. All those passages also go around the two outer studs on each side, so they need the sealing of the copper washer. It's pretty much like the copper crush washers in the brake line banjo fittings.
.
Oil comes up around the two rear studs. That is why you have an oval o-ring around them at the base gasket. Oil travels up around the stud through the cylinders. When it gets to the head, there is an angled passage that takes it to another passage that runs under the intake cam bearings. There is also a passage in the head that leads to a similar cam bearing feed for the exhaust cam bearings. All those passages also go around the two outer studs on each side, so they need the sealing of the copper washer. It's pretty much like the copper crush washers in the brake line banjo fittings.
.
The old copper washers were in great shape, I cleaned them off and put them back in place. Thanks again to all. I have only done a partial teardown of one of my bike engines and learned a bit from that. I think I'll keep my eyes open for one that someone is getting rid of (cheap) and will take it completely apart to see what I can learn/understand from seeing inside.
On the subject of brake line banjo bolt copper washers, I've bought new break lines recently that came with new bolts and washers. I don't recall them being obvious copper coloured (Canadian spelling) washers. Could they be using something else? And (the bonus question) is there a difference between copper crush and copper washers or are they one in the same?
On the subject of brake line banjo bolt copper washers, I've bought new break lines recently that came with new bolts and washers. I don't recall them being obvious copper coloured (Canadian spelling) washers. Could they be using something else? And (the bonus question) is there a difference between copper crush and copper washers or are they one in the same?
There are flat, rectangular section, solid washers like what you have on the bike and there are rolled round section I would call a crush washer.
Different people probably call them different things.
Unfortunately, like anything else these days, more and more parts are manufactured down to a price. They could be anything. Aluminium in particular is used a bit to replace the traditional copper.
Different people probably call them different things.
Unfortunately, like anything else these days, more and more parts are manufactured down to a price. They could be anything. Aluminium in particular is used a bit to replace the traditional copper.
This is very useful and informative. I am/was not familiar with the term anneal and so ... I did a bit of interneting 101 and went to this link to learn more: https://en.wikipedia.org/wiki/Annealing_(metallurgy)
I think I would have done better in school (not that I did bad) if we would have had practical projects to learn from like working on these old bikes. I've learned a lot here - thanks again!
I'll toss out another question here, I am having a bit of difficulty getting the oil plug/drain bolt to seal on one of my bikes. Is a copper washer or crush type a good option here or is there a rubber synthetic seal system/washer out there that is recommended?
This is what you need for the oil pan bolt - it's essentially a crush washer but called gasket:
From Parts Outlaw
GASKET
09168-14004
$1.05
From Parts Outlaw
GASKET
09168-14004
$1.05
Similar threads
