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 F block problems


this thread has 16 replies and has been viewed 1832 times

Reply
 
Thread Tools Display Modes
  #1  
Old 03-21-2009, 09:09:18 AM
Bob Kurtz Bob Kurtz is offline
Registered
 
Join Date: Jul 2006
Location: Alpha, New Jersey USA
Posts: 394
Thanks: 248
Thanked 214 Times in 107 Posts
Default Briggs F block problems

Hi
just picked up a Briggs F block with piston and crank. Well someone fooled with the piston pin and never put back the retainers ,you guessed it the pin rubbed the cylinder wall and scored it big time. question can the cylinder be bored out and sleeved? any suggestions?
Reply With Quote
Sponsored Links
  #2  
Old 03-21-2009, 09:36:11 AM
K D Redd K D Redd is offline
In Memory Of
 
Join Date: Nov 2004
Location: Southwest Missouri
Posts: 5,348
Thanks: 166
Thanked 1,196 Times in 1,057 Posts
Default Re: Briggs F block problems

Yes, unless the groove is VERY deep.

Kent
Reply With Quote
  #3  
Old 03-21-2009, 09:49:05 AM
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: 1,478
Thanks: 2,061
Thanked 473 Times in 291 Posts
Default Re: Briggs F block problems

How deep are the scores? You should be able to have it sleaved. I am not sure if spray welding would work on a cylinder or not, but you could look in to that also.
__________________
Mike Murphy Mike & Jen's Old Engines
SmokStak Member #28
Reply With Quote
  #4  
Old 03-21-2009, 11:32:37 AM
Bob Kurtz Bob Kurtz is offline
Registered
 
Join Date: Jul 2006
Location: Alpha, New Jersey USA
Posts: 394
Thanks: 248
Thanked 214 Times in 107 Posts
Default Re: Briggs F block problems

Mike
It's pretty deep .010 you put a ring down in the groove ,with a flashlight you can easily see light through it. it is quite a rare block otherwise in perfect cond.
Reply With Quote
  #5  
Old 03-21-2009, 12:38:42 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: 1,478
Thanks: 2,061
Thanked 473 Times in 291 Posts
Default Re: Briggs F block problems

That block should be able to be bored. You might be able to find a piston with the right dia. and correct piston pin height. I am not sure if any other F-series piston will work. But that might be an option for you.
__________________
Mike Murphy Mike & Jen's Old Engines
SmokStak Member #28
Reply With Quote
The Following 2 Users Say Thank You to Mike in NC For This Post:
  #6  
Old 03-21-2009, 12:48:38 PM
bart price bart price is offline
Registered
 
Join Date: Oct 2008
Location: reynolds ill usa
Posts: 194
Thanks: 135
Thanked 350 Times in 84 Posts
Default Re: Briggs F block problems

Bob your best bet is to have it sleeved i have had good luck with sleeves . Just make sure you take it to a good machine shop
Reply With Quote
  #7  
Old 03-21-2009, 01:13:32 PM
Bob Kurtz Bob Kurtz is offline
Registered
 
Join Date: Jul 2006
Location: Alpha, New Jersey USA
Posts: 394
Thanks: 248
Thanked 214 Times in 107 Posts
Default Re: Briggs F block problems

A sleeve might be the ticket oversize pistons are far and few these days
Reply With Quote
  #8  
Old 03-21-2009, 01:35:44 PM
Sky
Guest
 
Posts: n/a
Default Re: Briggs F block problems

Better off just to sleave it. The actual oversized pistons for the F's are practically non-existant, today. Sleaving doesnt seem to be much. Atleast not here. I had my 4 digit sleaved @ $150 Small price to pay considering what those F series have a capability of bringing these days.
Reply With Quote
  #9  
Old 03-21-2009, 04:24:53 PM
Mark97303 Mark97303 is offline
Registered
 
Join Date: Mar 2008
Location: Keizer, Oregon USA
Posts: 151
Thanks: 136
Thanked 110 Times in 54 Posts
Smile Re: Briggs F block problems

Hey, I just wanted to share a few thoughts. The score marks do not run the whole length of the cylinder.The score marks are in 2 places on oppisite sides of the cylinder. The cylinder is in much better shape than if it had had water on top of the piston half way down for years and years. This engine may get run a few times a year for a short length of time at a time.(most likely not under load)The score marks are not going to effect the whole power stroke.(might loose some compression) It might blow a little oil.This is an 80 year old engine. A new tight engine is sometimes harder to start. Than a broken in one. There is not alot of extra meat in the block if you sleeve it. With that said you could end up with a nice running very desirable collectable engine wth just a good hone and new rings.
If you wanted to use a new piston I have heard of people having good results with an alum piston out of an A (oversized more available) With that done and the cosmetics done again good running engine. And if it than blows a little oil tell yourself that the rings are not broken in yet.

Last but not least hit and miss guys sometimes use JB Weld in the grooves in the cylinder and than hone it smooth than put in new rings and old piston.
And the object is to restore it to what makes you happy,you do not have to defend your decision to me or anyone. Try these or anyone of these to find out what works to your satisfaction. My 2 cents Mark
Reply With Quote
The Following 2 Users Say Thank You to Mark97303 For This Post:
  #10  
Old 03-21-2009, 10:50:51 PM
Sky
Guest
 
Posts: n/a
Default Re: Briggs F block problems

Hey Bob

Here are the pictures of the F series block i had sleaved. Turned out nicely. Never mind the crack you may see in the pics. The crack in my case was due to the cylinder plug in the block but is very tiny and doesnt effect anything. Have it sleaved and fitted to .004 piston clearance and you'll have good positive results as the outcome.
Attached Thumbnails
Click image for larger version

Name:	scan0002.jpg
Views:	101
Size:	119.0 KB
ID:	50802   Click image for larger version

Name:	scan0003.jpg
Views:	107
Size:	94.6 KB
ID:	50803   Click image for larger version

Name:	scan0004.jpg
Views:	95
Size:	92.6 KB
ID:	50804  
Reply With Quote
The Following 2 Users Say Thank You to For This Post:
  #11  
Old 03-21-2009, 11:36:35 PM
Bob Kurtz Bob Kurtz is offline
Registered
 
Join Date: Jul 2006
Location: Alpha, New Jersey USA
Posts: 394
Thanks: 248
Thanked 214 Times in 107 Posts
Default Re: Briggs F block problems

Sky,
Great pictures ,Great engine! Thats the route i'm gonna go. Is the sleeve .004 bigger after the piston is miked? the piston I plan on using is a single ring -the orig. it miked up within spec.although the piston pin is a little out of round. or I can go with a 3 ring piston out of an FI thats perfect. now I just have to find a good machine shop.
Hey make sure you post pictures in progress as you build your FH. Thanks again for the pictures.

Last edited by Bob Kurtz; 03-22-2009 at 09:05:08 AM.
Reply With Quote
  #12  
Old 03-22-2009, 10:18:48 AM
Leonard Keifer Leonard Keifer is offline
Subscriber
 
Join Date: Nov 2004
Location: Maryland, USA
Posts: 1,219
Thanks: 247
Thanked 646 Times in 211 Posts
Default Re: Briggs F block problems

Mark97303: as far as "hit and miss guys sometimes use JB Weld in the grooves in the cylinder" I seem to remember that the JB Weld was used on the area behind the piston and wasn't in the combustion chamber. While JB Weld is wonderful stuff I don't think it would hold up in the fire and heat of the combustion chamber.
Reply With Quote
  #13  
Old 03-22-2009, 10:30:19 AM
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: 1,478
Thanks: 2,061
Thanked 473 Times in 291 Posts
Default Re: Briggs F block problems

A friend has used JB Weld in the combustion chamber of a heavyweight Rumely Oil-Pull and it worked great.
__________________
Mike Murphy Mike & Jen's Old Engines
SmokStak Member #28
Reply With Quote
  #14  
Old 03-22-2009, 10:35:45 AM
Arlie Levy Arlie Levy is offline
Registered
 
Join Date: Dec 2004
Location: Janesville WI. USA
Posts: 870
Thanks: 10
Thanked 385 Times in 275 Posts
Default Re: Briggs F block problems

How about switching blocks. I am sure they are out there. Arlie
Reply With Quote
  #15  
Old 03-22-2009, 11:29:02 AM
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: 1,478
Thanks: 2,061
Thanked 473 Times in 291 Posts
Default Re: Briggs F block problems

Almost ANY model F block would be worth saving. They are not too common.
__________________
Mike Murphy Mike & Jen's Old Engines
SmokStak Member #28
Reply With Quote
  #16  
Old 03-22-2009, 02:06:21 PM
Sky
Guest
 
Posts: n/a
Default Re: Briggs F block problems

Quote:
Originally Posted by Bob Kurtz View Post
Sky,
Great pictures ,Great engine! Thats the route i'm gonna go. Is the sleeve .004 bigger after the piston is miked?
The sleave is usually smaller then the piston after it's pressed in. Thats why afterwords it needs to be honed to fit the piston and then a finish hone fallows with 220. If it's a good machine shop they'll know what to do. Just tell'em you want what you have sleaved and .004 clearance for the piston. You may have a choice between an iron sleave or steel sleave i dont know becouse i forgot to ask when i had my engine done so i got stuck with a steel sleave but everything is still A.O.K Just find the best piston you can and Git-R-Done
Reply With Quote
  #17  
Old 03-22-2009, 03:28:44 PM
grega's Avatar
grega grega is offline
Subscriber
 
Join Date: Jun 2007
Location: Schuylerville, New York (Saratoga)
Posts: 1,255
Thanks: 62
Thanked 1,097 Times in 388 Posts
Default Re: Briggs F block problems

now then whats the serial # i might be able to cast some parts for you and give you dimentions for others if you plan to restore it
-Greg
Reply With Quote
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
Briggs and Stratton Aluminum Block? Bernie Niemeyer Small Air Cooled Gasoline Engines 2 02-22-2018 09:57:30 AM
Odd Briggs Fh type block James Wallace Small Air Cooled Gasoline Engines 3 06-05-2008 10:52:59 PM
Welding Briggs Aluminum Block KidDynamo Small Air Cooled Gasoline Engines 8 06-29-2007 09:20:16 AM
BRIGGS & STRATTON DIAMOND BLOCK Peter McGuire Small Air Cooled Gasoline Engines 1 10-02-2005 10:02:42 AM
Catch block problems Greg Dills Antique Engine Archives 4 11-19-2003 12:48:22 AM


Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 02:20:08 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