D17 Oiling System
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=18235
Printed Date: 06 Feb 2025 at 8:40pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D17 Oiling System
Posted By: BrianC,Ont
Subject: D17 Oiling System
Date Posted: 14 Sep 2010 at 10:43am
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Can you use the oiling setup from a later engine on an early engine. I have an oil pump that is after serial # 24001 that I want to put in an early block. I know that I have to change the filter adapter, but is there any other changes. Also any good used pumps for sale.
Brian ------------- 35WC on steel, B with belly mower, D17 puller, D15 Series II puller, D15 Series II with loader, 608 Lawn Tractor |
Replies:
Posted By: BrianC,Ont
Date Posted: 14 Sep 2010 at 6:15pm
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Bump ------------- 35WC on steel, B with belly mower, D17 puller, D15 Series II puller, D15 Series II with loader, 608 Lawn Tractor |
Posted By: Brian Jasper co. Ia
Date Posted: 14 Sep 2010 at 6:29pm
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I don't think so, but I don't know for sure. Early style is a bypass type filter system. The later all the oil goes through the filter. ------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford |
Posted By: CJohnS MI
Date Posted: 14 Sep 2010 at 6:38pm
The pump will likely work: the oil filter and lines will not. The later, full-flow system uses 1/2" or so lines that come from the block, to the filter and then right back into the engine. Means much larger ports in block that aren't there in the older style. But it also means that ALL oil flowing through the engine is filtered FIRST. The old block uses 1/8" lines to bleed a little oil into the filter, and a "tee" runs a little more up to the head to feed the rockers. Behind the filter mount on this one, is a passage way drilled to return the oil coming out of the filter back to the engine. Only a little oil is being filtered at any one time. |
BrianC,Ont wrote:Posted By: DrAllis
Date Posted: 14 Sep 2010 at 8:44pm
| You can use the newer style oil pump as-is IF you have the same tooth count on the gear that mates with the camshaft. You can also convert your old style block over to "full-flow" oiling/filtering system if you have the engine torn down. Takes some drilling and tapping and plugging of certain holes, but it can be done (i've done a dozen or so over the years). |
Posted By: Lester
Date Posted: 15 Sep 2010 at 6:34am
| As Dr. Allis says it can be done, but I have heard of a couple cases where the people did not know what they were doing and ruined the motor. |
Posted By: Chris/CT
Date Posted: 15 Sep 2010 at 6:36am
| I have a D-17 oil pump [ newer style w/ bypass on it] that I do not need. I think it is OK condition |
Posted By: BrianC,Ont
Date Posted: 15 Sep 2010 at 12:26pm
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Dr Allis; The motor has been rebuildt and is almost together. Is there any thing intrenal that has to be drilled. I will take the old style bypass and drill and tap the plug for the drain back to the pan. ------------- 35WC on steel, B with belly mower, D17 puller, D15 Series II puller, D15 Series II with loader, 608 Lawn Tractor |
Posted By: Creek Jenkins
Date Posted: 15 Sep 2010 at 1:13pm
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Is there any other difference with the new style pump other than the full flow thingy? More flow and/or pressure?
cheers,
Creek
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Posted By: DrAllis
Date Posted: 15 Sep 2010 at 4:21pm
| You have to drill and tap the block in the horizontal upper passage and drill/tap/plug the drain holes down below and drill/tap/plug the vertical passage to block oil flow between the upper and lower passages. I did an old D17 once in chassis and never had a problem, BUT you have to be really, really, really careful about not getting cast iron cuttings where they don't belong or there will be an immediate failure. |
Posted By: BrianC,Ont
Date Posted: 16 Sep 2010 at 11:28am
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Can some post a picture of the conversion, then I will have a better Idea when I go back to the machine shop.
Brian ------------- 35WC on steel, B with belly mower, D17 puller, D15 Series II puller, D15 Series II with loader, 608 Lawn Tractor |
Posted By: BrianC,Ont
Date Posted: 17 Sep 2010 at 10:46am
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Does anyone have pictures of early and late engines with the pan off. Or any pics of an early block that was already converted. Trying to see the difference between the early and full flow oiling system. Dad took the full flow block out to the farm. I wont be able to get out there til next weekend, and the machine shop would like to get this engine out of his way. I hope to have this in the tractor for the last pull around here in Oct, on Thanksgiving weekend.
Thank's Brian ------------- 35WC on steel, B with belly mower, D17 puller, D15 Series II puller, D15 Series II with loader, 608 Lawn Tractor |
Posted By: BrianC,Ont
Date Posted: 17 Sep 2010 at 4:19pm
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Just printed out the diagrams from agco parts books, Maybe we can get it done from these pics. ------------- 35WC on steel, B with belly mower, D17 puller, D15 Series II puller, D15 Series II with loader, 608 Lawn Tractor |