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05-10-2015, 11:56 PM
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#21
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Rivet Master 
Currently Looking...
1995 36' Classic 36
Ludington
, Michigan
Join Date: May 2011
Posts: 1,662
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Quote:
Originally Posted by SebasSF
Is there not a transmission cooler in there?
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It's that grey cylinder in the picture with the green striped hose and 2 hydraulic lines hooked to it. It uses a fluid to fluid heat exchanger.
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05-11-2015, 05:31 AM
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#22
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Rivet Master 
2005 34' Classic S/O
2006 39' Land Yacht 396 XL
north blenheim
, New York
Join Date: Sep 2012
Posts: 2,847
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Excellent job !
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05-12-2015, 05:12 PM
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#23
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4 Rivet Member 
1991 30' Airstream 30
San Francisco
, California
Join Date: Aug 2013
Posts: 463
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So, is the crankcase vent an open system with a hose that drops out the bottom? Would it not be a cheap solution to run it out to the rear lower area past the radiators and just let it vent if this is he case?
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05-12-2015, 06:20 PM
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#24
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Rivet Master
Currently Looking...
1995 36' Classic 36
Ludington
, Michigan
Join Date: May 2011
Posts: 1,662
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Quote:
Originally Posted by SebasSF
So, is the crankcase vent an open system with a hose that drops out the bottom? Would it not be a cheap solution to run it out to the rear lower area past the radiators and just let it vent if this is he case?
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If your not towing anything. There are cheap and easy solutions including oil catch cans that you have to periodically drain. I'll probably spring for the PH system. It captures the oil and returns it to pan. The green solution. I do live in boulder ya know!
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05-16-2015, 10:33 PM
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#25
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4 Rivet Member
1991 30' Airstream 30
San Francisco
, California
Join Date: Aug 2013
Posts: 463
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Took a look at mine today...not a very nice solution unless you're trying to make a big mess...?
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05-16-2015, 11:30 PM
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#26
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4 Rivet Member
1991 30' Airstream 30
San Francisco
, California
Join Date: Aug 2013
Posts: 463
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So he idea would be find a spot to install the Racor unit and run the outlet back into the air line between the CAC and the intake manifold (buy the fitting) and find a way to drain the oil back into the oil pan?
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05-17-2015, 02:36 AM
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#27
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Rivet Master
Currently Looking...
1995 36' Classic 36
Ludington
, Michigan
Join Date: May 2011
Posts: 1,662
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Quote:
Originally Posted by SebasSF
So he idea would be find a spot to install the Racor unit and run the outlet back into the air line between the CAC and the intake manifold (buy the fitting) and find a way to drain the oil back into the oil pan?
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That wouldn't work. The closed loop systems return the crank case air just after the air cleaner. If the oil separation and filtering are not adequate it makes a mess of your turbo and CAC lowering their efficiency.
The open loop systems capture the oil and drain it back to the oil pan and are still ventilated to the atmosphere. This is what I'll do.
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05-17-2015, 03:31 AM
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#28
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Rivet Master
2016 Interstate Grand Tour Ext
Wildwood
, Florida
Join Date: Oct 2009
Posts: 1,236
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I have got to get to Colorado sometime to check all this out. It would also be nice to talk airstreams over coffee with someone who drinks it at the same time I do! 
__________________
Dave and Felicia
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05-17-2015, 05:52 AM
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#29
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Rivet Master
Currently Looking...
1995 36' Classic 36
Ludington
, Michigan
Join Date: May 2011
Posts: 1,662
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Quote:
Originally Posted by wxbuoy
I have got to get to Colorado sometime to check all this out. It would also be nice to talk airstreams over coffee with someone who drinks it at the same time I do! |
Come on out! Actually I'm in the Dominican Republic today. Really good coffee down here. Come on down! ☕️
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05-17-2015, 09:55 AM
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#30
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4 Rivet Member
1991 30' Airstream 30
San Francisco
, California
Join Date: Aug 2013
Posts: 463
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Ok, that makes sense. Will you tap the oil pan?
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05-17-2015, 04:53 PM
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#31
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Rivet Master
Currently Looking...
1995 36' Classic 36
Ludington
, Michigan
Join Date: May 2011
Posts: 1,662
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Overheating!
Quote:
Originally Posted by SebasSF
Ok, that makes sense. Will you tap the oil pan?
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That's the plan. There actually a plug in the side of the pan that can be used.
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08-30-2015, 11:04 AM
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#32
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4 Rivet Member
1991 30' Airstream 30
San Francisco
, California
Join Date: Aug 2013
Posts: 463
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I had a bit of an adventure on my last road trip...the AC compressor came loose and the fan hit it busting up a couple things. I was able to straighten things out and patch them back together and get back on the road.
I'm now home and trying to do a proper job putting it back together. I found an original replacement fan for over $800. I also found a modern replacement fan with all the same specs but it's composite and has one more blade so it should push more air for $125 made by ACS part number 444100-24. Not sure if it will pull more horsepower, but it should be much lighter so less rotating mass etc.
I also spoke to one of the old timers at Spartan. He said make sure no air that ran through the CAC could get sucked back into the motor bay- make sure there is a good seal around the radiator. I had a look at mine, and it looks like there was some kind of shroud or material that was removed so I do have a space all around my radiator. I'm hoping one of you fellow pusher guys can tell me what I'm missing and post a photo?    
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08-30-2015, 12:07 PM
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#33
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Rivet Master
Currently Looking...
1995 36' Classic 36
Ludington
, Michigan
Join Date: May 2011
Posts: 1,662
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Overheating!
Check out my Killer Dowel Pin thread. Post #9. When I removed the unused oil cooler on the 95, I cut the core out and used the frame to support and seal the space between the CAC and radiator. The thread also shows the baffling around the radiator. It's just that aluminized rubber mat.
My 94 pictured in this thread had the cooler removed and they didn't use the frame or seal the gaps.
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08-31-2015, 04:20 PM
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#34
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Rivet Master
1974 20' Argosy 20
Richmond
, Kentucky
Join Date: Jan 2003
Posts: 9,116
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Ok you stumped me. What's a CAC?!
__________________
Air forums # 1674
1974 20' Argosy Motor Home
1975 24' Argosy Motor Home
1974 31' Excella trailer (parting out, as of 4/1/2015 I have wheels & windows left to sell)
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08-31-2015, 04:38 PM
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#35
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3 Rivet Member 
1998 31' Land Yacht
lafayette
, Colorado
Join Date: Jul 2012
Posts: 169
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Charge Air Cooler. Fancy way of saying condenser for A/C.
__________________
We call ours "Ship Of Fools"
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08-31-2015, 05:20 PM
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#36
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Rivet Master
Currently Looking...
1995 36' Classic 36
Ludington
, Michigan
Join Date: May 2011
Posts: 1,662
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Overheating!
Quote:
Originally Posted by bkahler
Ok you stumped me. What's a CAC?!
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Charge air cooler is correct. But it cools the compressed air off the turbo charger before it enters the intake manifold. Commonly called an intercooler in the automotive world. Diesel truck parts sources generally call them charge air coolers.
At 30 lbs of boost the air off the turbo gets surprisingly hot. Not uncommon to see 250 degrees. The CAC pulls a lot of that heat out increasing the density of the air pumped into the cylinders. It's a significant performance gain.
http://dwdiesel.com/products/charge-air-coolers/
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09-01-2015, 01:04 PM
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#37
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Rivet Master
1974 20' Argosy 20
Richmond
, Kentucky
Join Date: Jan 2003
Posts: 9,116
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Ok, now I understand. I was thinking the discussion was just about the A/C system. But even so I had never heard the term CAC before so thanks for the clarification!
Brad
__________________
Air forums # 1674
1974 20' Argosy Motor Home
1975 24' Argosy Motor Home
1974 31' Excella trailer (parting out, as of 4/1/2015 I have wheels & windows left to sell)
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09-01-2015, 02:35 PM
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#38
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Rivet Master
Currently Looking...
1995 36' Classic 36
Ludington
, Michigan
Join Date: May 2011
Posts: 1,662
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Quote:
Originally Posted by bkahler
Ok, now I understand. I was thinking the discussion was just about the A/C system. But even so I had never heard the term CAC before so thanks for the clarification!
Brad
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The dash A/C condenser on these rear engine Classic 360s is up in the front with an electric fan.
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09-01-2015, 06:35 PM
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#39
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3 Rivet Member
1998 31' Land Yacht
lafayette
, Colorado
Join Date: Jul 2012
Posts: 169
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Foot in mouth disease. I wasn't thinking diesel or rear pusher at all. Charge air as in compressed air charge. (Bowing)
__________________
We call ours "Ship Of Fools"
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09-07-2015, 05:17 PM
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#40
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4 Rivet Member
1991 30' Airstream 30
San Francisco
, California
Join Date: Aug 2013
Posts: 463
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New fan installed, AC compressor and belts back in, and everything working well with locktite and lock washers on everything. The new fan is about half the weight. It's a pain to install from the front, but possible. The AC compressor and the bracket the fan is attached to need to come off. Probably easier to take the CAC and radiator off...
If one of you fellow pusher owners find yourself under  the bed and could do me a favor- I would love to know how much room there is between the tip of the fan blade and the AC compressor. Mine is a close fit, and I'm a bit concerned that the fan could flex and hit it again. Kind of makes me wonder if the mechanic put the old fan on backwards and that's what caused the whole problem.
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