426 engine
Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=154608
Printed Date: 22 Nov 2024 at 11:04pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 426 engine
Posted By: allis3
Subject: 426 engine
Date Posted: 06 Oct 2018 at 9:53pm
|
What 426 allis engines had the German crank in them . Found a coupe of 670T engines but not finding what cranks they had |
Replies:
Posted By: DrAllis
Date Posted: 06 Oct 2018 at 10:54pm
| What is your concern?? Any 670- T engine should have a non-counterbalanced crankshaft in them. That is assuming it's never been replaced with a different crankshaft. Any 1800 RPM gen-set engine has a cheap crankshaft in them because of the application. The best cranks had the small diameter long length bolt holding on the crank pulley. What size socket does the crank pulley bolt take ?? |
Posted By: allis3
Date Posted: 07 Oct 2018 at 7:12am
| I don’t have them in my possession yet , was just checking to see if the cranks were the same as the N5. Both of these engines were stationary rigs. Gonna stroke one of them for a big cube class and convert it to gas |
Posted By: DrAllis
Date Posted: 07 Oct 2018 at 8:15am
| They are not an N-5/6 crankshaft as I see it. If they have a fluid vibration damper they are the counterbalanced design. Never have seen a rubber damper on the N-5/6 crankshaft. |
Posted By: NEVER green
Date Posted: 07 Oct 2018 at 9:38am
Say Dr., will the fluid damper work on a non counterbalanced stroked crank?? It has been computer balanced. ------------- 2-8050 1-7080 6080 D-19 modelE & A 7040 R50 |
DrAllis wrote:Posted By: DrAllis
Date Posted: 07 Oct 2018 at 10:58am
| It will work fine. I've had one on a 180 twin-spin puller for many years. |
Posted By: allis3
Date Posted: 07 Oct 2018 at 11:08am
| Anyone have any leads on a 426 head the plugs have been installed in already |
Posted By: Ronin x Part
Date Posted: 25 Sep 2023 at 7:03pm
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Can someone help me? I am looking for a standard size crankshaft for an Allis-Chalmers 670T motor. Can anyone recommend someone who might have it? |