×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

valve guide material
3

valve guide material

valve guide material

(OP)
I need to turn some new valve guides for my motorcycle engine (3 cylinder air cooled Laverda) what would be the best material to use?
Thanx

RE: valve guide material

Manganese Bronze has become a popular material.

RE: valve guide material

2
If the original guides were thick iron I'd only use a thin bronze sleeve (and not spiral inserts, like helicoils). I've witnessed a few serious failures caused by the expansion rate of bronzes in thick or confined parts. Several precision spindles with thick bronze non-contact seals (that rubbed very slightly).  One was a Harley V-twin seizing both exhaust valves in its brand new spiral bronze inserts

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources