AIH removal, CCV mod
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Cargo Master
Joined: Sep 2007
Posts: 2,470
Likes: 535
From: Chandler, AZ
AIH removal, CCV mod
1) Does the 'Puter have a problem if I remove the air intake heater (AIH)? Does it do a self test to see if the element is intact? Can I just insulate the wires or do I need a resistor to trick the system? What tread size/type is the hole?
2) I see that the crack case vent in the turbo inlet is restrictive. I don't really want to go with an atmospheric vent at this time, can I just cut off the vent piece that sticks up? what about keeping the CCV sytem intack but using metal tubing instead of the plastic assembly for improved flow?
I read here someplace that diesel engines don't have the crankcase gunk issue like a gas enigne, why?
2) I see that the crack case vent in the turbo inlet is restrictive. I don't really want to go with an atmospheric vent at this time, can I just cut off the vent piece that sticks up? what about keeping the CCV sytem intack but using metal tubing instead of the plastic assembly for improved flow?
I read here someplace that diesel engines don't have the crankcase gunk issue like a gas enigne, why?
Elder User
Joined: May 2007
Posts: 752
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From: New Orleans
i don't know about the aih but as far as gunk from the ccv theres alot i pulled off my intake system and holy cow ther was black sluge all over the intake tubes and i'm sure it made its wat to and past the turbo at some point. but thats just me. remember if its going into the head its collecting on the top of the valves. hope this helps
Ryder
Ryder
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
...and mucking up your I/C. I still plan on pulling mine to clean it one of these days. I'd love to stick a 6.0 I/C in there, but that's way down the list of To-Dos.
And no, the PCM doesn't care about the AIH. You can pull the lead off the relay or just disconnect it and tape it up. I think it's cleaner to pull it completely out, myself. I think the size is 22mm. It's like the same size/threads as a Dodge oil plug, IIRC. There was a DIY mods thread a while back with all the details, but I can't find it right now.
Joe
And no, the PCM doesn't care about the AIH. You can pull the lead off the relay or just disconnect it and tape it up. I think it's cleaner to pull it completely out, myself. I think the size is 22mm. It's like the same size/threads as a Dodge oil plug, IIRC. There was a DIY mods thread a while back with all the details, but I can't find it right now.
Joe
Post Fiend
Joined: Feb 2007
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From: Blairsville,Ga
Originally Posted by smoky_diesel
1) what about keeping the CCV sytem intack but using metal tubing instead of the plastic assembly for improved flow?
need to find some 4" aluminum tube
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
There was a write-up about doing that exact thing. I think they used steel wool or something in a piece of PVC with a drain tap as the oil trap. To me, it's just easier to vent it to the atmosphere. It's good enough for International, so it's good enough for me (only Ford routes the CC gases back into the turbo with this engine).
Joe
Joe
Post Fiend
Joined: Sep 2006
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From: Millbrook Alabama
Joe is right the thread size for the AIH delete is 22mm, find a 22mm drain plug at autozone.
If you run your CCV reroute up and over the master cylinderand then down to the frame you have created an oil trap. The oil will condense in the first foot of hose (going uphill) and will drain back into the CCV doghouse.
If you run your CCV reroute up and over the master cylinderand then down to the frame you have created an oil trap. The oil will condense in the first foot of hose (going uphill) and will drain back into the CCV doghouse.
Post Fiend
Joined: Feb 2007
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From: Blairsville,Ga
Originally Posted by bdrummonds
If you run your CCV reroute up and over the master cylinderand then down to the frame you have created an oil trap. The oil will condense in the first foot of hose (going uphill) and will drain back into the CCV doghouse.
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Hotshot
Joined: Nov 2006
Posts: 11,286
Likes: 263
From: North of Greenville
Well, I have also found that the oil does not all condense in the first foot except during the hot summer months. When I re-routed my CCV back early this year, I put a trap in the line under the driver side door and caught about 3 ounces of oil over the course of running the truck for 4,000 miles. I have not caught hardly anything in it since I drained it back in April or May, but I expect it to start building up again since it is beginning to run cooler now.
If you put it into your exhaust, be careful to angle the bung insert towards the exhaust end of the pipe, like the diagram below, and the exhaust flow will help induce suction on the line... you don't want to pressurize your crankcase.
If you put it into your exhaust, be careful to angle the bung insert towards the exhaust end of the pipe, like the diagram below, and the exhaust flow will help induce suction on the line... you don't want to pressurize your crankcase.
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) and found to actually pressurize the CC? If it were me, I wouldn't go through the trouble of putting that in.
Lead Driver
Joined: Mar 2004
Posts: 5,372
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From: Northern Indiana
Is the AIH just a unnessary part or does it have a purpose? Just wondering because I hear people taking it out but does it help or make easier starts in cold weather. I visit Michigan in the winter time and just wondering if there is enough noticable gain in the airflow to warrant taking it out. And if so should I put in back in when going up north?
Post Fiend
Joined: Feb 2007
Posts: 7,191
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From: Blairsville,Ga
Originally Posted by Firefighter 1406
Is the AIH just a unnessary part or does it have a purpose? Just wondering because I hear people taking it out but does it help or make easier starts in cold weather. I visit Michigan in the winter time and just wondering if there is enough noticable gain in the airflow to warrant taking it out. And if so should I put in back in when going up north?
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
Ray is right. It *ONLY* comes on under a specific set of circumstances and does nothing for starting at all. It's something like idle with the parking brake set for a certain amount of time with the temp below a certain temp. Definitely not an issue if you live in the south, and all it does is get rid of some white smoke at extended idle (emissions) in cold temps. I'd toss it. As far as benefits, you'd think there'd be more considering how big that thing is. But I don't think anyone here has claimed a perceptible change.
Joe
Joe
Post Fiend
Joined: Feb 2006
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From: Middle Tennessee
Originally Posted by Firefighter 1406
Thanks for the info. I was wondering because I want to use that port for the boost gauge and didn't want to mess anything up!!!!