By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale Dec 6th

MARINER; drawing correction

All Topics | Latest Posts

Search for:  in Thread Title in  
Diane Carney10/08/2016 22:18:18
397 forum posts
10 photos

Chris Walter has submitted a redrawn Fig 27 (M.E. issue 4540) after it was pointed out that:

  • "the valve eccentric OD is shown as 1 1/16" but on page 253 the eccentric strap is shown as having a bore of 1" with a brass sleeve bringing the ID to 15/16".

Chris replies:

  • "The reader is quite right in stating that their is a discrepancy. My fault entirely as the drawing of the straps shows two wrong dimensions. I had not updated these when redesigning the straps after increasing the diameter of the eccentrics.
    The dims affected are the ineternal bore of the eccentric and its bush.
    As the eccentric is correct this will not affect the part [he has] already finished.
    All the other dimensions on the straps remain the same so the fix will be to bore the straps to the new dimension and make larger bearing bushes to match, if he has got passed this stage

A new drawing to replace fig 27 can be found here:

Ulf-Goran Solving17/08/2016 11:49:31
2 forum posts

Hi there says: I am sorry to say that the link in Chris reply can not be open. An other thing: I can not find the mesurment between center of eccentric to center of crankshaft.


JasonB17/08/2016 12:17:03
16884 forum posts
1816 photos
1 articles

Welcome to the Forum


I have asked Diane to sort out the link.

There is a note in Fig 26 that the eccentric throw is 1/2in, looking at the proportions I would say that is total throw so the hole should be offset 1/4" from centre.

Edited By JasonB on 17/08/2016 12:17:13

JasonB17/08/2016 13:20:54
16884 forum posts
1816 photos
1 articles

Temporary link to the revised drawing here until we can get it hosted on this website.

Ulf-Goran Solving17/08/2016 13:55:38
2 forum posts


Ulf-Goran SolvingThank you very much for a very promt answer.

Neil Wyatt17/08/2016 17:47:34
16937 forum posts
690 photos
76 articles

Image was too low-res, here's a pdf:


Edited By Neil Wyatt on 17/08/2016 17:54:28

Edited By Neil Wyatt on 17/08/2016 20:52:08

JES16/05/2017 16:45:26
68 forum posts
48 photos

Is there a layout drawing for the valve gear, I am having difficulty in seeing how it works from the photos ?


All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Latest Forum Posts
Support Our Partners
Allendale Electronics
Eccentric Engineering
Eccentric July 5 2018
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest