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7.5L to 6.9L IDI swap
After running on the engine stand, I pulled the heads on this engine intending to replace head gaskets. Measured a few cylinders, had a few that were right at .005" above the rest of the bore right where the top piston ring changes direction. Pulled a piston, removed the top ring, stuck it in...- MechRick
- Post #14
- Forum: 6.9L IH & 7.3L IDI Diesels
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7.5L to 6.9L IDI swap
I think you are right, it probably had an air pocket. I've gotten air in the IP on these engines before when changing fuel filters, before I know the trick of filling them with ATF. Had one I had to crack a few injector lines to purge. Moving right along...- MechRick
- Post #13
- Forum: 6.9L IH & 7.3L IDI Diesels
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7.5L to 6.9L IDI swap
I'm pretty close to a running 6.9L. It's mounted to the run stand, wired, plumbed and ready to go. Injector return lines are leaking, and #2 cap is weeping fuel, but I'm hoping it will start and run. I had to wire in the glow plug controller, it wouldn't even hit without them. I juiced the cold...- MechRick
- Post #11
- Forum: 6.9L IH & 7.3L IDI Diesels
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7.5L to 6.9L IDI swap
Tell me more about these 38 gallon tanks! I'm cobbling together a run stand from my scrap pile. I was going to buy 2" x 2" 12 gauge square tubing to build it, but about had a heart attack with the quote from the steel yard. Steel is ridiculous at the moment. Should be done in a couple of...- MechRick
- Post #6
- Forum: 6.9L IH & 7.3L IDI Diesels
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7.5L to 6.9L IDI swap
The gasser is an '88. So the selector valve from the EFI system won't work. I'm not too fond of the electric switch valves, I've replaced a few on carbed trucks. I'll probably plumb in the front tank to get it running. Thought about running the fuel line from the rear tank to the filler neck...- MechRick
- Post #4
- Forum: 6.9L IH & 7.3L IDI Diesels
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7.5L to 6.9L IDI swap
First post- I've recently purchased a 6.9L IDI with the intent of swapping it into my gas F250. This will be my first diesel, assuming I got a good one, but I've got quite a bit of experience working on them (and Cummins too), as I was a line mechanic for 30-odd years. I plan on reusing the big...- MechRick
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- Replies: 14
- Forum: 6.9L IH & 7.3L IDI Diesels
