Farm Equipment - 7040 water pump volute o-rings

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7040 water pump volute o-rings

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=198630
Printed Date: 12 Nov 2024 at 1:57am
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Topic: 7040 water pump volute o-rings

Posted By: DIESEL
Subject: 7040 water pump volute o-rings
Date Posted: 09 Dec 2023 at 8:52pm

In the water pump volute there is only room for 1 o-ring for the water tube to slide into, but the parts book breakdown shows 2. What am I missing fellas. Manual says to put on the tube and slide in but I'd think it would be easier to install in the volute first, any pointers.

Replies:

Posted By: SteveM C/IL
Date Posted: 09 Dec 2023 at 10:34pm

Kinda remember what yer saying about 2 but it only uses one on each end and they go inside in the groove then the pipe is slipped in. (this is on an 8070 but I think the same) I used a little silicone grease on the oring and tube. Right or wrong.

Went and looked...same for 7040 and 8070. Both take two 70923621 orings on tube. One per end. Parts books for '40 shows 2 at front of tube in pic and '70 book shows one. Both say in description 2 required. 70923684 is oring between volute and block. You wouldn't guess it from the picture. HTH