Antique Engines and Old Iron
[Home] - [HELP] - [Forums] - [Library] - [Photo Gallery] - [Groups] - [Classified Ads] - [Subscribe] - [Links] - [Books] - [Sponsors] -

Go Back   SmokStak > SmokStak® Antique Engine Community > Small Air Cooled Gasoline Engines
Forgot Password? Join Us!

Notices

Small Air Cooled Gasoline Engines Briggs & Stratton, Clinton, Lauson, Maytag, Nelson, Wisconsin and other small air cooled engines.

Small Air Cooled Gasoline Engines

Briggs Model Y Valve Angle Spec?


this thread has 8 replies and has been viewed 412 times

Reply
 
Thread Tools Display Modes
  #1  
Old 11-24-2018, 01:10:07 PM
Cnew Cnew is offline
Registered
 
Join Date: Nov 2018
Location: Eden Prairie, Minnesota, United States
Posts: 18
Thanks: 0
Thanked 2 Times in 2 Posts
Default Briggs Model Y Valve Angle Spec?

Hello, I have a copy of the Briggs model Y service manual but it doesnít have any specification for the valves. Does anyone know what the valve angle should be for new valves and/or to regrind used valves? Also, Iíd be interested to know torque values for the connecting rod cap bolts and the tocylinder head bolts.

Thanks!
Reply With Quote
Sponsored Links
  #2  
Old 11-24-2018, 01:22:37 PM
turbo's Avatar
turbo turbo is offline
Subscriber
 
Join Date: Dec 2006
Location: Heron Lake, Minnesota, USA
Posts: 1,036
Thanks: 604
Thanked 970 Times in 415 Posts
Default Re: Briggs Model Y Valve Angle Spec?

Like almost all small engines, the valve angle is 45 degrees. As for torque specs, I wouldn't get too concerned. Make sure they are tight. I have made a lot of these engines run without a torque wrench!! But if you really feel the need to torque the bolts then use STD. torque specs for the different size fasteners.
Reply With Quote
  #3  
Old 11-24-2018, 01:30:38 PM
Andrew Mackey Andrew Mackey is offline
Sponsor
 
Join Date: Nov 2004
Location: Rockaway, New Jersey USA
Posts: 13,487
Thanks: 1,915
Thanked 6,253 Times in 4,036 Posts
Default Re: Briggs Model Y Valve Angle Spec?

There is no real torque spec. 'Good and tight' was the norm back then. just make sure the keeper is folded around the con rod bolts so they can't back off. Tighten the head bolts in a crossing pattern and do it again after the engine is run a while, to allow the gasket to seat.
Reply With Quote
  #4  
Old 11-24-2018, 01:45:23 PM
Cnew Cnew is offline
Registered
 
Join Date: Nov 2018
Location: Eden Prairie, Minnesota, United States
Posts: 18
Thanks: 0
Thanked 2 Times in 2 Posts
Default Re: Briggs Model Y Valve Angle Spec?

Awesomely, thank you both for the quick replies! Iíll go with the 45 deg. I thought that was likely the case but wanted a second opinion. As for torque, Iíll do the goodín tight method.
Reply With Quote
  #5  
Old 11-24-2018, 04:56:00 PM
G.M.Johnson G.M.Johnson is offline
Subscriber
 
Join Date: Jul 2015
Location: Ann Arbor, Michigan
Posts: 353
Thanks: 167
Thanked 240 Times in 130 Posts
Default Re: Briggs Model Y Valve Angle Spec?

Quote:
There is no real torque spec. 'Good and tight' was the norm back then.
We call that "calibrated elbow torque"
Reply With Quote
The Following User Says Thank You to G.M.Johnson For This Post:
  #6  
Old 11-24-2018, 10:19:29 PM
Mike in NC's Avatar
Mike in NC Mike in NC is offline
Moderator
 
Join Date: Oct 2004
Location: Mountains of North Carolina USA
Posts: 1,373
Thanks: 1,786
Thanked 386 Times in 244 Posts
Images: 74
Default Re: Briggs Model Y Valve Angle Spec?

Connecting Rod Bolt Torque
Attached Thumbnails
Click image for larger version

Name:	connecting rod torque.jpg
Views:	55
Size:	38.9 KB
ID:	323466  
__________________
Mike Murphy Mike & Jen's Old Engines
SmokStak Member #28
Reply With Quote
  #7  
Old 11-26-2018, 07:51:42 PM
Cnew Cnew is offline
Registered
 
Join Date: Nov 2018
Location: Eden Prairie, Minnesota, United States
Posts: 18
Thanks: 0
Thanked 2 Times in 2 Posts
Default Re: Briggs Model Y Valve Angle Spec?

Thanks Mike, that table is very helpful!
Reply With Quote
  #8  
Old 11-26-2018, 10:04:08 PM
Ogrebeast64 Ogrebeast64 is offline
Registered-I
 
Join Date: Jun 2017
Location: Baltimore, Ohio
Posts: 125
Thanks: 81
Thanked 36 Times in 31 Posts
Default Re: Briggs Model Y Valve Angle Spec?

This is what I have on hand for the torque specs.
Attached Thumbnails
Click image for larger version

Name:	Briggs Specs001.jpg
Views:	33
Size:	252.4 KB
ID:	323535   Click image for larger version

Name:	Briggs Specs002.jpg
Views:	20
Size:	261.8 KB
ID:	323536  
Reply With Quote
  #9  
Old 11-26-2018, 10:09:30 PM
Cnew Cnew is offline
Registered
 
Join Date: Nov 2018
Location: Eden Prairie, Minnesota, United States
Posts: 18
Thanks: 0
Thanked 2 Times in 2 Posts
Default Re: Briggs Model Y Valve Angle Spec?

Awesome, this is incredible info. I really appreciate everyone taking he time to read the post and provide all the feedback!

---------- Post added at 08:09:30 PM ---------- Previous post was at 08:07:15 PM ----------

Mike, I just noticed my previous reply had a typo. That table you provided is VERY helpful! My fat finger typing on an iPad must have tried to autocorrect and put in “isn’t” which was not intended. Your reply and data table is indeed very helpful. Sorry about that!
Reply With Quote
The Following User Says Thank You to Cnew For This Post:
Reply

Bookmarks


Thread Tools
Display Modes

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

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
Galloway valve and seat angle larry bee Antique Gas Engine Discussion 4 06-20-2013 08:23:21 PM
2-1/4 hp Galloway Valve Angle Pat Barrett Antique Gas Engine Discussion 1 02-19-2012 12:25:14 PM
Valve Angle Question Edwin Antique Gas Engine Discussion 18 03-25-2011 03:05:41 PM
Valve angle question? Edwin Antique Gas Engine Discussion 3 05-21-2010 04:09:09 PM
Valve Angle Bernie Witte Antique Engine Archives 11 12-11-2003 12:45:32 AM


Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 06:05:12 AM.

Smokstak and Enginads site search!


All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark - A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2016 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277