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


Weird cam??
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
NEVER green View Drop Down
Orange Level Access
Orange Level Access


Joined: 28 Feb 2013
Location: MN.
Points: 7776 		Post Options Post Options   Thanks (0) Thanks(0)   Quote NEVER green Quote  Post ReplyReply Direct Link To This Post Topic: Weird cam??
    Posted: 28 Jan 2025 at 11:11am
  
   Now that Ed is lurking about...  the reground cam in my pulling tractor is second hand, did not get a card, guys did not recall who ground it, some one in Indiana???

   It was for a 3000 RPM class, thats why I added larger ratio rockers.   Here is strange I think, rough measurements for valve opening after rockers is  Intake .500 , ex .610.

   Does this seem odd ex is so much higher lift??? I know they want the hot gass out to spin turbo but it is already getting shoved out by piston.

   
   
2-8050 1-7080 6080 D-19 modelE & A 7040   R50       
Back to Top
Sponsored Links


Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 20935 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jan 2025 at 11:21am
Would it be a Vogel cam grind ???
Back to Top
NEVER green View Drop Down
Orange Level Access
Orange Level Access


Joined: 28 Feb 2013
Location: MN.
Points: 7776 		Post Options Post Options   Thanks (0) Thanks(0)   Quote NEVER green Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jan 2025 at 11:25am
Originally posted by DrAllis DrAllis wrote:

Would it be a Vogel cam grind ???

  Possibly, bought from some youth, did not seem to care who reground it.  Would make sense.    They claimed it was somebody with a rep.
2-8050 1-7080 6080 D-19 modelE & A 7040   R50       
Back to Top
injpumpEd View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 13 Sep 2009
Location: Walnut IL
Points: 4958 		Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jan 2025 at 1:34pm
It's pretty common for the exh side to have more lift AND duration. With this goofy flowing AC head though, I've talked with several guys a lot smarter than me about having one ground to favor the intake side, since head flows really good on exh side. 
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
Back to Top
NEVER green View Drop Down
Orange Level Access
Orange Level Access


Joined: 28 Feb 2013
Location: MN.
Points: 7776 		Post Options Post Options   Thanks (0) Thanks(0)   Quote NEVER green Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jan 2025 at 2:18pm
Originally posted by injpumpEd injpumpEd wrote:

It's pretty common for the exh side to have more lift AND duration. With this goofy flowing AC head though, I've talked with several guys a lot smarter than me about having one ground to favor the intake side, since head flows really good on exh side. 
 
    Thanks Ed,   since I filled my head with grout I actually got the intake to flow much more then ex.

    Still might replace cam down the road, they are always learning.


Edited by NEVER green - Yesterday at 8:38am
2-8050 1-7080 6080 D-19 modelE & A 7040   R50       
Back to Top
injpumpEd View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 13 Sep 2009
Location: Walnut IL
Points: 4958 		Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 8:22am
My head has been worked over by Bob Himes, and it flows pretty good for what it is, but intake still not as good as my competitors likely are lol!
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
Back to Top
NEVER green View Drop Down
Orange Level Access
Orange Level Access


Joined: 28 Feb 2013
Location: MN.
Points: 7776 		Post Options Post Options   Thanks (0) Thanks(0)   Quote NEVER green Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 9:21am
   Wipe Out sells ported IH  heads , stock one with stock valves flow 285CFM ,  stock one with big valves flow  360CFM.
2-8050 1-7080 6080 D-19 modelE & A 7040   R50       
Back to Top
tbran View Drop Down
Orange Level
Orange Level


Joined: 14 Sep 2009
Location: Paris Tn
Points: 3375 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tbran Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 10:56am
One of my pet peeves is Allis NEVER changed the profile of their cams - they did change a 'quietening curve'  on later engines but the specs as to lift , duration and degrees did not. 
Surely from naturally aspirated engines of the 60's to the turbo'd 4.33 - 7020 or 8070 they could have made a difference in efficiency and performance.  How many cams are available for a 350 Chevy, Chrysler  or Ford ?   Rumor was that when they changed the cam on the D262 on the D19 - kept the intake open longer - it would not start so they had to change them out (first ones) . The lesson was to engineering - leave it alone. Bad lesson.   
When told "it's not the money,it's the principle", remember, it's always the money..
Back to Top
NEVER green View Drop Down
Orange Level Access
Orange Level Access


Joined: 28 Feb 2013
Location: MN.
Points: 7776 		Post Options Post Options   Thanks (0) Thanks(0)   Quote NEVER green Quote  Post ReplyReply Direct Link To This Post Posted: 8 hours 47 minutes ago at 8:28am
Originally posted by tbran tbran wrote:

One of my pet peeves is Allis NEVER changed the profile of their cams - they did change a 'quietening curve'  on later engines but the specs as to lift , duration and degrees did not. 
Surely from naturally aspirated engines of the 60's to the turbo'd 4.33 - 7020 or 8070 they could have made a difference in efficiency and performance.  How many cams are available for a 350 Chevy, Chrysler  or Ford ?   Rumor was that when they changed the cam on the D262 on the D19 - kept the intake open longer - it would not start so they had to change them out (first ones) . The lesson was to engineering - leave it alone. Bad lesson.   

   I had one of my cams reground by Colt Cams and he did not like the stock profile, forget the exact complaints, been awhile and they were numerous.

   I was told the quieting part of the engine was done with the Bosch injectors on the 8000 series. Rumor?? That and they lowered compression where  in my book you should get a different cam. 

   You are right, Ford offered several cams right from the factory for their engines, RV, police, truck, high performance.
2-8050 1-7080 6080 D-19 modelE & A 7040   R50       
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 0.066 seconds.


Help Support the
Unofficial Allis Forum