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Old 02-27-2016, 11:05 AM   #15
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1991 30' Airstream 30
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Interesting. I had the CAC rebuilt and pressure checked when the motor was rebuilt.
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Old 02-29-2016, 07:38 PM   #16
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More power Scotty

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Interesting. I had the CAC rebuilt and pressure checked when the motor was rebuilt.

Did they recore it or just clean and test it?
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Old 03-05-2016, 09:04 AM   #17
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I too received a boost output of 30-35psi with the banks system. I did not see any noticeable increase in MPG, so I reviewed the PO's maintenance logs. They did an upgrade to 300hp shortly after getting it, but everything is stock. That's when I started reviewing my notes and issues she's been having (lots of smoke on acceleration, and diesel fuel residue on the toad). Their 300hp solution was to replace the fuel plate and adjust the p7100 star wheel. So really, just fuel. After undoing the star wheel adjustment, and removing the turbo silencer the best I got was 15MPG no toad, no wind, level ground. Usually I get 13.5-14mpg and with toad 12-13.
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Old 06-20-2016, 12:50 PM   #18
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1983 31' Airstream310
Olympia , Washington
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Mo Power

My local diesel mechanic suggested that I have all the injectors rebuilt along with the injector pump to get more power. I think it was around $200 per injector and $450 for the pump. There is a more power now even though the turbo boost indicator is off the scale!! I do have to watch the EGT temps. While the motor home was in the shop, I did have a Gear Vendors overdrive unit installed. That was money well spent.

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Olympia, WA
1983 Airstream 310 TD
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Old 06-23-2016, 01:21 AM   #19
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I have been tinkering with mine. I adjusted the arm on the turbo bypass actuator shorter and it's running much better now. Still only gets up to 25 on the boost gauge but has more power and runs cooler. Traveling on flatland the turbo is running at 10 psi boost. Drove up to Oregon last weekend and got around 11 mpg...was hoping for a bit better.
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Old 06-23-2016, 11:37 PM   #20
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I see about 30 lbs on hard acceleration. About 5 lbs better than before I patched up the CAC. They do rot out. Mostly thermal expansion cracks. They pressure test them regularly on commercial trucks. It's also running cleaner. I did back off the star wheel a couple teeth. Sacrificed a little power for not having to watch the EGT while Ann is driving.
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Old 06-24-2016, 12:33 AM   #21
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One place to look that gets missed a lot is the exhaust manifold. They crack on the bottom side where you dont look and lower the exhaust energy to the turbo.
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