Leaking head gaskets - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

 
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post #1 of 7 Old 02-28-2011, 05:24 PM Thread Starter
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Leaking head gaskets

I heard it's common for IDI's to leak at the rear of the heads. Has anybody had this happen to their IDI? How long did you drive it like that? Is there a way to prevent it from happening again after replacing the gaskets, like head studs or upgraded gaskets? My truck is currently, clearly leaking at the rear heads. I have to add some oil/coolant about every 1,000 miles but it drives great. Will it be fine as long as the two (oil/coolant) don't mix?

'94 F-350 CC DRW 2WD Turbo IDI 7.3
Rebuilt E4OD w/"updates" & billet Precision "RV" TC
Custom welding Bed/Lincoln Classic II
Helper Bags
3" straight pipe w/one-off 6" SS tip
K&N Air Filter
Pioneer HU/Alpine components
7 235/85-16's (spare tire holder is modded for a bigger than stock spare)
FL-1995 & new ZD9's
Next: whenever the OEM injectors go out they will get replaced with BB codes
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post #2 of 7 Old 02-28-2011, 06:58 PM
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Yup, head studs and new gaskets. Thats about all you can do.

-Justin-
1985 Ford F-250 with a 6.9 IDI/T-19 4speed 4x4
Paint, Eagle Alloys, Kelly Safari TSR's, ATS turbo, gauges

2004 Jetta TDI 5 speed
2004 2wd Excursion Limited 6.0. Testing how loyal I am to Ford
1997 Passat B4V TDI. 1 of 80 imported in 97. 50 MPG and a factory 25 gallon fuel tank!
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post #3 of 7 Old 03-01-2011, 07:32 AM Thread Starter
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I'm guessing it's not a good idea to turn the pump up while the heads are leaking?

'94 F-350 CC DRW 2WD Turbo IDI 7.3
Rebuilt E4OD w/"updates" & billet Precision "RV" TC
Custom welding Bed/Lincoln Classic II
Helper Bags
3" straight pipe w/one-off 6" SS tip
K&N Air Filter
Pioneer HU/Alpine components
7 235/85-16's (spare tire holder is modded for a bigger than stock spare)
FL-1995 & new ZD9's
Next: whenever the OEM injectors go out they will get replaced with BB codes
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post #4 of 7 Old 03-01-2011, 07:36 AM
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Haha. I'm gunna go with a no.
But I like the way you think

Ben Conner
LSP Assistant Director

Got every PSD made...
My DD: '13 6.7L with Optimus Prime's wanker still on the exhaust

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post #5 of 7 Old 03-01-2011, 11:07 AM
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I replaced one of mine, just ised new OEM ford bolts so I didn't have to remove the motor. I could just sneek that rear bolt out and in. Them heads are NOT light lol.

1993 f-350 7.3IDI
1967 F-100 352
1958 Pan Head Ground up built NOT BOUGHT
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post #6 of 7 Old 03-01-2011, 04:14 PM Thread Starter
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When I replace the head gaskets, I also plan on adding ARP head studs, Auto Meter boost/egt gauges, turning up the pump, and replacing all the glow plugs with new motorcrafts. The truck just hit 180k and my goal is 300k. Is there anything else I should replace while everything is apart? Is there anything I can mod for better performance while everything is apart(smoothing down anything on the intake/exhaust manifolds, or on the heads, etc.)?

'94 F-350 CC DRW 2WD Turbo IDI 7.3
Rebuilt E4OD w/"updates" & billet Precision "RV" TC
Custom welding Bed/Lincoln Classic II
Helper Bags
3" straight pipe w/one-off 6" SS tip
K&N Air Filter
Pioneer HU/Alpine components
7 235/85-16's (spare tire holder is modded for a bigger than stock spare)
FL-1995 & new ZD9's
Next: whenever the OEM injectors go out they will get replaced with BB codes
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post #7 of 7 Old 03-05-2011, 07:50 AM
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Just watch you EGT's when you turn the pump up, you could have some head work done if you really wanted to. Check the glow plug relay and any other leaks. Make sure you use the correct coolant also.
As performance goes, all thats really left is a custom cold air intake and/or propane

1993 f-350 7.3IDI
1967 F-100 352
1958 Pan Head Ground up built NOT BOUGHT
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