7040 Overheating
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=162201
Printed Date: 03 Apr 2026 at 9:57pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 7040 Overheating
Posted By: Lakeville Orchards
Subject: 7040 Overheating
Date Posted: 24 Jun 2019 at 7:15pm
I have an AC that after 30-45 minutes of running will start to over heat. I have replaced the head gasket and have even put a different head on it. When it starts to overheat the anti freeze comes out the blow tube as a vaper, but no antifreeze is getting in the oil pan! Does anyone have any ideas?
|
Replies:
Posted By: MACK
Date Posted: 24 Jun 2019 at 9:10pm
|
I would start with a new radiator cap. Next check temp. with a heat sending gun. Clean radiator inside and out. Tighten fan belt and check pullies for ware along with belts. Check foam around radiator. MACK
|
Posted By: Mikez
Date Posted: 24 Jun 2019 at 10:41pm
Posted By: DrAllis
Date Posted: 25 Jun 2019 at 7:26am
|
Starting by replacing the head gasket and cylinder was expensive, wasn't it ?? #1. Clean radiator INSIDE AND OUT and I know it isn't and I'm not even there looking at it. #2. Fan shroud must be there and in good unbroken condition. #3. Fan belts TIGHT and pulleys that aren't worn out. #4. New thermostats. #5. All the foam around the sides top and lower front on the radiator. #6. New radiator cap. #7. Do not overfill the radiator...there has to be some room for expansion or it will vomit every time it warms up. #8. New temp gauge and sender or a new manual type temp gauge. #9. Change head gasket or cracked cylinder head. #10. engine HP is set over the stock 135 HP it should be at. #11. Plugged muffler. #12. Leaking intake manifold gasket and low turbo boost causing the engine to make more heat than HP delivered. That's about it.
|
|