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Coolant in Oil
As a matter of fact, when I pulled the lifters, I forgot to drain the coolant first. Antifreeze rushed out into the valley when I pulled the pan before I opened the radiator plug. So yup, they are open. I don't recall seeing any plugs either...- halogen25
- Post #30
- Forum: 6.9L IH & 7.3L IDI Diesels
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Coolant in Oil
I took the manifold off to replace the lifters a couple of weeks ago, and I didn't notice anything strange (like water sloshing around), though I didn't take off the CDR and inspect it. I'll give that a try and post the results.- halogen25
- Post #27
- Forum: 6.9L IH & 7.3L IDI Diesels
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Coolant in Oil
I wish it were fixed, Kevin, but not yet.... Racer30, yea, I certainly have gunk in the valve covers, indicative of water vaporizing in the hot-running oil (not to mention my oil cap!). But this latest observation is just way too much water in the oil pan, and it is way too clear/clean to...- halogen25
- Post #25
- Forum: 6.9L IH & 7.3L IDI Diesels
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Coolant in Oil
Thanks for your comment eatont9999. My problem has not actually been solved. I'm still getting water sucked into my oil. After replacing all of the lifters (all failed at once due to water contamination), I temporarily put just water in the radiator. Sure enough, after driving it only 50 miles...- halogen25
- Post #22
- Forum: 6.9L IH & 7.3L IDI Diesels
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Coolant in Oil
Yes, I think this really was a bad head gasket and/or head bolts. There was tons of watery snot up in the valve covers (worse on one side), indicative of the leak. The heads checked out fine under magnaflux. So really I had two problems (head gasket/bolts and corroded freeze plug), and...- halogen25
- Post #15
- Forum: 6.9L IH & 7.3L IDI Diesels
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Coolant in Oil
Problem solved! Hi Folks, Now almost a year later, the problem of lost coolant has finally been solved. I had been driving the truck intermittently and checking the coolant level carefully when I did. Nothing happened for months. Then one day I took it on the highway for a 45 minute...- halogen25
- Post #11
- Forum: 6.9L IH & 7.3L IDI Diesels
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Coolant in Oil
Hi Folks. Now 4 months later, I have bad news to report and a request for suggestions. I solicited the help of a friend who is a mechanic, and together we replaced the head gaskets and oil cooler o-rings. We used ARP head studs also added many new parts (thermostat, water pump, hoses...- halogen25
- Post #4
- Forum: 6.9L IH & 7.3L IDI Diesels
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Coolant in Oil
After several weeks of lurking here and thedieselstop, it is time to ask for some advice. I purchased an '85 6.9L several months ago that looked outstanding. Less than 100k miles, no visible leaks, and everything functional. After a few weeks I noticed that it was losing coolant, about 1...- halogen25
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- Replies: 33
- Forum: 6.9L IH & 7.3L IDI Diesels
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