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BMW 3-Series (E90 E92) Forum
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Silicone Vacuum Line Replacement
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11-11-2015, 05:52 PM | #156 |
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just came back to see this thread, I like the direction it's headed. I finally was able to grab the nipple and slip the new hose in for the front turbo. should've removed the vacuum canister bracket but I just bent it a bit and shoved my arm in.
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2009 E92 335i M-Sport - MHD Stage One - BMW Performance Exhaust - BMS Oil Catch Can - CDV Delete - K&N Panel Filter - Arc Angel H8 bulbs - Gloss Black Kidney Grills - Painted Reflectors - VRSF Charge Pipe
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11-30-2015, 09:52 PM | #157 |
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Did some interior cleaning and finally ran out of time to do all the vacuum hoses. Only had time to do the 2 near the oil cooler. Immediately solved my >5k rpm engine malfunction and power was back! Wooh, feels good. Will do the rest in spring, dont have a garage.
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12-09-2015, 12:46 PM | #158 | |
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To replace #5 and #6 the hard lines. Can u do that with a soft silicone 3.5mm line. Or do I need to get replacement hards lines due to heat. It's rhe ones that go over the valve cover |
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12-09-2015, 12:48 PM | #159 |
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The silicone will hold up to that heat just fine. It's much hotter on the wastegate actuators and they don't have problems there. You can replace the plastic lines if you really need to.
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12-24-2015, 02:14 AM | #160 | |
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06-02-2016, 03:18 PM | #161 |
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for the front solenoid, use a inspection mirror with a light and you will see where the line needs to go. Once you know exactly where it needs to go in, it's way easier. still havent been able to do the rear one :/
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06-02-2016, 06:46 PM | #162 |
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For me, the front was harder than the rear. Patience and you will get it. This goes w/o saying but make sure the engine is cold.
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06-02-2016, 07:52 PM | #163 |
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I did every single vacuum line from the vacuum pump all the way to the turbo solenoids. I have not done both lines from solenoids to turbos. Does anyone know what is the safest way to remove it. Do you just pull on it as hard as you can? What if it breaks leaving a tip on the nipple?
So far, I've been carefully cutting all of them with a blade and carefully separating it. With little room and visibility at the turbos, I might not be able to cut it. By the way, the replacement of all the vacuum hoses made my wastegate rattle like MAD! Even louder during de-acceleration. |
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06-02-2016, 09:41 PM | #164 | |
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06-04-2016, 10:36 AM | #166 |
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06-04-2016, 11:38 PM | #167 | |
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I have hooked up a vac gauge and isolated each turbo solenoid and started the engine. Both turbo solenoids report 25mmHG when I start the engine. So I know vacuum is good. Now I'm convinced the turbo wastegates are shot, hence the massive rattling on rpm decline. |
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02-07-2017, 03:50 PM | #168 |
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I upgraded to the blue platinum cured tubing last weekend, I attached a pic
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Bimmer 808171.50 Gregrobin583.00 |
02-07-2017, 03:52 PM | #169 |
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Another pic for you guys
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Bimmer 808171.50 Gregrobin583.00 |
02-07-2017, 05:07 PM | #170 |
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Can you send me the link for that? Looks so much better than the blue tubing I ordered recently
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02-08-2017, 12:17 AM | #171 | ||
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02-10-2017, 03:49 PM | #172 | |
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http://www.verociousmotorsports.com/...ld-by-the-Foot |
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03-18-2017, 12:13 PM | #173 | |
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Drives: 2009 335i E90
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Quote:
To help others, I ended up taking the vacuum canisters off their mounts to make it easier to get the old lines off the bottoms, as I didn't want to snap the nipples off accidentally. That also made it a little easier to get the front wastegate line swapped out. That one and the rear wastegate were definitely the most difficult lines to change due to cramped quarters and angles, but a bit of WD-40 on the inside of the new lines allowed me to slip them on easier. I also changed the short line coming off the main hard-line on the left side inner fender, and changed out the intake-to-diverter-valve lines too. Altogether took about 3hrs, but well worth the piece of mind, as I had some loose ones, and some hardened ones that would've caused problems eventually. I had to take a sharp blade to all the old lines and a small screwdriver to loosen the ends off the connectors to avoid breaking any nipples. No way did I want to spend extra time fixing broken things.
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06-19-2017, 03:50 PM | #176 |
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I replaced mine with silicon line and ran it under the intake manifold back to the firewall and then to the brake booster. It makes my engine bay look so much cleaner without that ugly hard line.
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