Construction and other equipment - Modle D Grader engine support

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Modle D Grader engine support

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=204790
Printed Date: 06 Jan 2025 at 9:34pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Modle D Grader engine support

Posted By: newbe2
Subject: Modle D Grader engine support
Date Posted: 02 Jan 2025 at 11:26am

ALMOST ready to fire up my 1953 Model D grader. Axle is repaired, just waiting for new drive chain. D17 engine is installed, need help with the front motor mount. When they put in the D15 diesel they discarded the motor mount, now I need one. I assume the block (70065842 parts 9 and 10 page 134) serves some purpose in the alignment of the engine, but then the 1949 WD tractor I took the engine out of did not have one. Does anyone have the measurements of the block or know the height above the crossmember the engine should be?.Is the support block cast or machined? Would a block made from White Oak work? Thanks for your help, again.

Replies:

Posted By: ac fleet
Date Posted: 03 Jan 2025 at 10:24am

all mine has is an angle iron across the frame under the front of the motor like the wc, wd, wd-45, etc has and bolts down the same way.

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Posted By: DrAllis
Date Posted: 03 Jan 2025 at 6:02pm

2" or 2 1/2" angle iron 3/8" thick works just fine.

Posted By: im4racin
Date Posted: 03 Jan 2025 at 6:44pm

That shouldn’t have a spacer. The trans will tip to the rear to let the engine settle on the angle iron cross member

Posted By: Dave Richards (WV)
Date Posted: 06 Jan 2025 at 3:34pm

I think you have us confused. Do you Have a D17 engine or a Wd Engine? Do you need both Part 9 and 10 or just 10? Part 10 is the engine mounting block and it is machined. It is about 2 inches tall so I would not mount the engine directly on the cross member which is the angle iron. The parts book lists shims so I imagine the dimension is important. I am not at the farm now but can measure it next week if you still need it. Oak would work initially but will degrade with time. Short pieces of steel pipe would work better until you get a block made. Mine is a 59 model with the D17 engine. The 53 with a WD Engine may

be different but the parts manual makes no distinction.

Posted By: newbe2
Date Posted: 06 Jan 2025 at 7:48pm

Thank you Dave. I have a D17 engine in a 1953 wd grader, that had a D15 diesel in it when I acquired it. Long painful story, hopefully with a happy ending.

My engine holds off the bell housing connection at 2.375+-" above the angle iron cross member. so I know I need something to fill the gap and secure the front of the engine. What I don't know is how critical that dimension is. I assume, from what you told me, about 2"-2.5" seems right as that would fit the purpose for the block and shim shown in the book. It's not a support so much as it is an alignment issue being the weight is totally supported from the bell housing/transmission connection.???

I'm thinking of bolting a 2x2 angle to the bottom of the engine and a 2x2 angle to the cross member then weld them together to fill the gap and hold the front of the engine.

Posted By: im4racin
Date Posted: 06 Jan 2025 at 9:28pm

Does the engine sit level currently? If not loosen the clamps between the frame and axle pivot. The engine will settle down on the crossmember