Farm Equipment - New d17 engine rebuild question

Print Page | Close Window

New d17 engine rebuild question

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=148609
Printed Date: 24 Aug 2025 at 8:56am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: New d17 engine rebuild question

Posted By: spencefarm
Subject: New d17 engine rebuild question
Date Posted: 19 Mar 2018 at 11:37am

So we just finished putting in a new clutch and a different block with a total rebuild in the d17. How long should i let it idle and just take it easy to seat everything before I start working it like normal?

Replies:

Posted By: DrAllis
Date Posted: 19 Mar 2018 at 11:45am

Not idle. Throttle up to 1200 or better once you have established oil pressure. Allow coolant to get warm and DYNO it !!!

Posted By: DSeries4
Date Posted: 19 Mar 2018 at 3:59pm

Yep, I have been told to put her to work so the rings set.

-------------
'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080

Posted By: DrAllis
Date Posted: 19 Mar 2018 at 4:10pm

I've never ran one more than 20 minutes before hitting the dyno. Ignition timing has to be set at full throttle, so after it warms up, be sure to do that before dynoing. I usually dyno'd for 30 minutes at half load and full load, let cool down overnite and retorqued head bolts and ran the tappets in the morning.

Posted By: spencefarm
Date Posted: 19 Mar 2018 at 5:28pm

Ok. Best way to dyno the tractor without the nice machine that hooks to the pto? This is my first rebuild.

Posted By: SteveM C/IL
Date Posted: 19 Mar 2018 at 9:17pm

Put 200 Bu corn in a wagon and take it down the road. Get it rolling in high about 1/3 throttle and yank it open.When it peaks,chop the throttle till down to speed you started and repeat.Over and over. That will be a good start on seating the rings.

What does this tractor get used for? Would help to do some field work varying speed but that ain't happening around here for a while.

Posted By: spencefarm
Date Posted: 19 Mar 2018 at 9:26pm

I will pull a 12ft disc with it. Also, a 12ft drill. It is kinda a back up tractor.

Posted By: SteveM C/IL
Date Posted: 19 Mar 2018 at 9:41pm

Use your disc as the dyno.Do like Doc says and got 1/2 throttle for a time and then open her up.Don't bury the disc and gut it.Just set it for a decent load.