Antique Engines and Old Iron
[Home] - [HELP] - [Forums] - [Groups] - [Classified Ads] - [Subscribe] - [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. Sub forums for mowers, scooters and powered eqipment.

Small Air Cooled Gasoline Engines

Briggs Model Q Teardown


this thread has 37 replies and has been viewed 1210 times

Reply
 
Thread Tools Display Modes
  #1  
Old 06-11-2019, 08:09:51 PM
Mike Stroz Mike Stroz is offline
Registered
 
Join Date: Apr 2015
Location: Shrewsbury, Massachusetts, USA
Posts: 97
Thanks: 2
Thanked 18 Times in 17 Posts
Default Briggs Model Q Teardown

Just picked up a pretty nice Briggs Model Q, serial number in the 5000's, and it seems like it's been sitting so long it's rusted up inside. It turns over but it's a little crunchy. Never seen a Q before, what's the procedure to get it apart? I can see the base unbolts but I haven't done anything but pull the head to reveal some somewhat crusty valves
Reply With Quote
  #2  
Old 06-11-2019, 09:03:52 PM
uglyblue66 uglyblue66 is online now
Subscriber
 
Join Date: Dec 2007
Location: Concord, North carolina
Posts: 5,218
Thanks: 2,344
Thanked 4,090 Times in 1,927 Posts
Default Re: Briggs Model Q Teardown

I have a rough but fairly complete Q.The flywheel was run loose and ruined the flywheel and crank.I have only got a glimpse of it in the past 10 years as it is on a shelf in behind a couple B's and some other stuff.
I had no idea they were scarce when I paid 75 bucks for it 20 years ago.I thought I could scratch up a crank and flywheel easy and cheap. I have not looked that hard but have not seen any just laying around.
Reply With Quote
  #3  
Old 06-11-2019, 09:21:08 PM
Mike Stroz Mike Stroz is offline
Registered
 
Join Date: Apr 2015
Location: Shrewsbury, Massachusetts, USA
Posts: 97
Thanks: 2
Thanked 18 Times in 17 Posts
Default Re: Briggs Model Q Teardown

I can imagine parts are hard to come by. This one seems to be in good shape which is why I'm even trying to save it. The cam isn't wiped out and it has good compression. I'm thinking it was just stored in a humid place for a bunch of years without any oil circulating to keep the rust at bay.
Reply With Quote
  #4  
Old 06-11-2019, 09:50:45 PM
Vanman Vanman is offline
Subscriber
 
Join Date: Aug 2011
Location: Mission Viejo, California
Posts: 6,101
Thanks: 10,200
Thanked 2,898 Times in 1,938 Posts
Default Re: Briggs Model Q Teardown

How bad are the flywheel and crank? I'd think a repair could be effected. Even if it means machining a tapered sleeve...

That's pretty cool. I don't have anything that rare. Some ZZs, a B, a WMB. Do have a water cooled Z / ZZ that's pretty neat

Keith
Reply With Quote
  #5  
Old 06-11-2019, 10:06:37 PM
uglyblue66 uglyblue66 is online now
Subscriber
 
Join Date: Dec 2007
Location: Concord, North carolina
Posts: 5,218
Thanks: 2,344
Thanked 4,090 Times in 1,927 Posts
Default Re: Briggs Model Q Teardown

Not meaning to highjack but it is my K I would really like to get running.It is close but never hit a lick.
I don't know when I will get time in the near future to dig that Q out. Maybe I should.
Reply With Quote
  #6  
Old 06-11-2019, 10:52:24 PM
K-Tron K-Tron is offline
Registered
 
Join Date: Sep 2010
Location: Huntington, NY
Posts: 2,010
Thanks: 911
Thanked 1,019 Times in 707 Posts
Default Re: Briggs Model Q Teardown

With any valuable, rare old engine, it is best to be as gentle as you can with disassembly. I have submerged many stuck engines in my ultrasonic cleaner and pulled out clean free engines. This process strips paint, so it may not be for you. I'd suggest using plenty of pblaster or kroil to help you disassemble the engine for proper inspection. I would not run an engine of that age without first pulling the piston and rod to check for stuck rings.

Chris
Reply With Quote
The Following User Says Thank You to K-Tron 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
Model 82 Teardown Question kleinkaliber Maytag Engines and Collectibles 2 12-06-2015 12:52:25 PM
Little crawler teardown wilson Ross Antique Steel Wheel Tractors - Old Iron Lugs and Cleats 0 11-26-2010 01:09:21 PM
Cam timing after teardown gruby26 Small Air Cooled Gasoline Engines 3 01-18-2009 09:21:11 AM
Tecumseh H30 teardown and overhaul squarend Small Air Cooled Gasoline Engines 9 05-10-2008 11:35:27 PM


Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 08:23:25 PM.

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 - 2019 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277