This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Other Topics > Pulling Forum
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


whats the safe amount to mill a head
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
mjbower View Drop Down
Silver Level
Silver Level


Joined: 04 Oct 2009
Location: Michigan
Points: 255 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mjbower Quote  Post ReplyReply Direct Link To This Post Topic: whats the safe amount to mill a head
    Posted: 03 Aug 2013 at 6:56am
on a b with m&w sleeves and pistons.need to keep in mind this is a hand crank tractor.thanks for any input.
Back to Top
Sponsored Links


Back to Top
steve(ill) View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: illinois
Points: 81266 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 03 Aug 2013 at 9:26am
.100 inch. Remember the  original compression was about 5.7 to 1... You will only get to about 6.5 to 1 if your lucky.  Wont ever be a "high compression " motor.
Like them all, but love the "B"s.
Back to Top
Dick L View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: Edon Ohio
Points: 5087 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dick L Quote  Post ReplyReply Direct Link To This Post Posted: 03 Aug 2013 at 6:48pm
Originally posted by mjbower mjbower wrote:

on a b with m&w sleeves and pistons.need to keep in mind this is a hand crank tractor.thanks for any input.


Up to .200 can be taken off without a problem. That is the most that I have removed on several heads.
For some reason this picture will not show.

http://images16.fotki.com/v301/photos/6/34676/7550174/Picture2027-vi.jpg?1375576752



I determined how much I could remove when building my pulling engines by sawing a head and boring into the firing chamber. This took all the opinions and myths out of what can or can not be done.







Edited by Dick L - 03 Aug 2013 at 7:13pm
Back to Top
THE-MAN View Drop Down
Silver Level
Silver Level


Joined: 11 Mar 2013
Location: By the lake
Points: 156 		Post Options Post Options   Thanks (0) Thanks(0)   Quote THE-MAN Quote  Post ReplyReply Direct Link To This Post Posted: 03 Aug 2013 at 8:47pm
Remember to take a stone on a die grinder and chamfer ( round )   The crap out of the edge of the combustion chamber. You don't want any sharp edges.
Back to Top
volfan View Drop Down
Bronze Level
Bronze Level


Joined: 01 Aug 2013
Points: 25 		Post Options Post Options   Thanks (0) Thanks(0)   Quote volfan Quote  Post ReplyReply Direct Link To This Post Posted: 03 Aug 2013 at 9:55pm
I do not know if the diferences in head stud loctation or any other issues would.make it not interchange but the 149 head has no combustion chamber and is flat.it would up the compression if it will inerchange.
Back to Top
THE-MAN View Drop Down
Silver Level
Silver Level


Joined: 11 Mar 2013
Location: By the lake
Points: 156 		Post Options Post Options   Thanks (0) Thanks(0)   Quote THE-MAN Quote  Post ReplyReply Direct Link To This Post Posted: 03 Aug 2013 at 10:11pm
That's very true Pank. I do have a flat head for sale is anyone is interested.
Back to Top
Dick L View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: Edon Ohio
Points: 5087 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dick L Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2013 at 7:22am
Originally posted by volfan volfan wrote:

I do not know if the diferences in head stud loctation or any other issues would.make it not interchange but the 149 head has no combustion chamber and is flat.it would up the compression if it will inerchange.


They will not interchange but if they would then you need to figure out how do you would keep the valves from contacting the pistons .
Back to Top
SF 49ers Fan View Drop Down
Silver Level
Silver Level


Joined: 18 Jun 2013
Location: Iron Hills ME
Points: 147 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SF 49ers Fan Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2013 at 8:57am
LEE??? OK, LOL that's cute. 
XXXOOO'sHeart


Edited by SF 49ers Fan - 04 Aug 2013 at 11:12am
Back to Top
steve(ill) View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: illinois
Points: 81266 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2013 at 8:59am
Dick, its been a year or so since i did the "figuring", but it thought about .150 inch and the valves "might" touch the piston tops, so i stopped at .100 ... Did you cut into the pistons for valve clearance, or is the clearance really over .200 ?
Like them all, but love the "B"s.
Back to Top
SF 49ers Fan View Drop Down
Silver Level
Silver Level


Joined: 18 Jun 2013
Location: Iron Hills ME
Points: 147 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SF 49ers Fan Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2013 at 9:14am
Here you go Dick. I didn't have anything to do.
XXXOOO'sHeart


Edited by SF 49ers Fan - 04 Aug 2013 at 9:15am
Back to Top
mjbower View Drop Down
Silver Level
Silver Level


Joined: 04 Oct 2009
Location: Michigan
Points: 255 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mjbower Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2013 at 6:43pm
thanks everybody i think ill stick with .100 off from it to play it safe.
Back to Top
Dick L View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: Edon Ohio
Points: 5087 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dick L Quote  Post ReplyReply Direct Link To This Post Posted: 08 Aug 2013 at 9:23pm
Originally posted by steve(ill) steve(ill) wrote:

Dick, its been a year or so since i did the "figuring", but it thought about .150 inch and the valves "might" touch the piston tops, so i stopped at .100 ... Did you cut into the pistons for valve clearance, or is the clearance really over .200 ?

I took .200 off with no problems.
Back to Top
Ken(MI) View Drop Down
Orange Level
Orange Level
Avatar

Joined: 14 Sep 2009
Location: Lansing, MI
Points: 618 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken(MI) Quote  Post ReplyReply Direct Link To This Post Posted: 09 Aug 2013 at 6:55am
Mike, if you want to take it to the limit, let me know and you can borrow my sonic thickness tester. Hope to see you in Mulliken tomorrow. Ken
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.109 seconds.


Help Support the
Unofficial Allis Forum