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 Cheap noisy dump valve. (currently 5252 views) |
| pzooo |
| Posted on: Wednesday, November 16th, 2011, 11:04:53pm |
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thanks for the pic, I was at a loss which hose to disconnect, will try this weekend  |
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Reply: 120 - 140 |
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| pzooo |
| Posted on: Saturday, November 19th, 2011, 9:44:10pm |
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Is my Cappo too dignified? (youtube movie)
I disconnected the hose and plugged it, but no PTSJ sounds  |
Last modified Saturday, November 19th, 2011, 9:44:37pm by pzooo |
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Reply: 121 - 140 |
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| Andy |
| Posted on: Sunday, November 20th, 2011, 12:24:47am |
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You may want to check it again but rev it a bit more than that. It needs a good few revs to get it to dump. Easiest way is to drive rather than rev  |
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Reply: 122 - 140 |
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| pzooo |
| Posted on: Tuesday, November 22nd, 2011, 9:44:17pm |
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Thanks, I've tried it again, same method, and even went up to 8500rpm in second and third in a long tunnel, but still can't hear a dump, really none. So good suggestions are welcome
The green turbo light lights up fine though. Because I am a bit worried that I unplugged the wrong hose I replaced everything in the old position after a 10 mile drive. |
Last modified Tuesday, November 22nd, 2011, 10:16:10pm by pzooo |
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Reply: 123 - 140 |
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| Andy |
| Posted on: Tuesday, November 22nd, 2011, 11:28:42pm |
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| You definitely did it right from what I can see in the vid. From the sound on the vid I would suspect that the ABV is actually stuck open. If it was stuck shut I'd expect to hear a flutter noise... |
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Reply: 124 - 140 |
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| Andy |
| Posted on: Tuesday, November 22nd, 2011, 11:31:52pm |
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| Do you have a boost gauge fitted by the way? If so what is your max boost? The green light comes on as it passes 0 bar so it isn't a great indicator that things are fine in the turbo department. Does the car accelerate well? |
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Reply: 125 - 140 |
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| pzooo |
| Posted on: Wednesday, November 23rd, 2011, 1:59:37pm |
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Hi, it accellerates very well. Should I check for a stuck valve? Is there a link how to do so?
edit ; found some links on this forum
doesn't this blow up your engine?
a long story which makes me believe I need to have the ABV serviced |
Last modified Wednesday, November 23rd, 2011, 2:34:00pm by pzooo |
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Reply: 126 - 140 |
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| Andy |
| Posted on: Wednesday, November 23rd, 2011, 3:48:33pm |
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Fitting a blanking plate won't blow the engine up no. I was under that impression but it turns out it's not true 
Id the ABV is broken then it will have to be replaced as I don't believe there are any serviceable parts. It could be a problem with the hoses or solenoid that operates it though.
You'll need to have a read through the service manual page 6L-7 shows how to test the ABV. |
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Reply: 127 - 140 |
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| pzooo |
| Posted on: Sunday, November 27th, 2011, 6:08:30pm |
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| I tried again, but no success. I did notice an increase in turbo lag with the hose disconnected, so put it back together. In case I don't intend to replace the ABV, will an aftermarket BOV do with what I currently have ? |
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Reply: 128 - 140 |
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| Andy |
| Posted on: Sunday, November 27th, 2011, 6:29:22pm |
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| I'm guessing your ABV is stuck open in which case it needs deleting by fitting a plate or replacing. You could delete the ABV using a plate and then install a BOV in the hose from intercooler to intake manifold if you want to. |
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Reply: 129 - 140 |
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| Dawson |
| Posted on: Thursday, December 1st, 2011, 2:16:42pm |
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Depending on your choice of BOV it's not too hard to remove the ABV and fit one there...
It sounds like a bodge but with a little adjustment to the spacing of the holes you can use a flange adapter like this to fit a universal BOV. A friend of mine had a lovely sounding Collins hanging around so I used that for my install (see here: http://methinksperchance.net/cars/?p=465 )
Some people prefer to fit aftermarket BOVs nearer the inlet (after the intercooler) which would require you to remove the ABV and blank that opening off - I had some blanking plates made up for that job a while ago and still have one or two hanging around  See the thread in the For Sale section if you're interested... |
Last modified Thursday, December 1st, 2011, 2:22:03pm by Dawson |
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Reply: 130 - 140 |
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| Switch |
| Posted on: Wednesday, February 29th, 2012, 5:27:59pm |
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Reply: 131 - 140 |
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| Capposteve |
| Posted on: Monday, April 9th, 2012, 1:27:42pm |
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i take it this priciple is the same for any turbo vehicle?? say.............. um, my vw t5 van
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Reply: 132 - 140 |
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| Laikathedog |
| Posted on: Saturday, October 6th, 2012, 9:51:58pm |
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hi,
i thought i would try this for a laugh
car idles fine
and when i blip the throttle it dumps noisily as planned
but under ANY acceleration it dumps constantly, if i idle it at 2ooorpm it just seems to dump continuously....
diagnosis sought ! |
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Reply: 133 - 140 |
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| Andy |
| Posted on: Saturday, October 6th, 2012, 9:58:15pm |
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| Knackered ABV unfortunately |
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Reply: 134 - 140 |
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| Laikathedog |
| Posted on: Saturday, October 6th, 2012, 10:23:02pm |
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thanks andy,
wheres the vacuum pipe on the ABV meant to go, mine is just a short bit of pipe that goes to air |
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Reply: 135 - 140 |
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| Andy |
| Posted on: Saturday, October 6th, 2012, 10:25:28pm |
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| Ah maybe not knackered after all then! It should connect to the thin pipe that runs along with the two bigger pipes across the front of the cam cover. |
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Reply: 136 - 140 |
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| Laikathedog |
| Posted on: Saturday, October 6th, 2012, 10:51:27pm |
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plugged in little vacuum pipe
took it for a spin and now i love my cappuccino a little more
that vacuum pipe has made a significant difference... i now have a turbo !
thanks for the help |
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Reply: 137 - 140 |
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| Kaappi |
| Posted on: Friday, September 19th, 2014, 4:23:05pm |
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Tried this today
The looks of ppl at bus stop... priceless |
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Reply: 138 - 140 |
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| Bulletproof kimono |
| Posted on: Wednesday, March 11th, 2015, 5:28:06pm |
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Having recently done this (5 mins from start to laughter) I thought it was about time it came to the top again.
The perfect thing for blocking the pipe in a considerably more professional looking way than any of my previous sellotape and Blu-tac "modifications" is the plastic thingy that blanks off what I would refer to as the cigarette lighter socket in my wife's car (she'll never notice).
I've just refitted the blanking thingy with a little wipe of black silicone sealer to make sure it won't admit any air.
I apologise if the forgoing is fat too technical but it's the only way I know how.
Tomorrow I'll stick a bit of pipe on the other side to take any oil mist under the car where it might do a bit of good.
Now all I need is to tweak the boost a teeny bit and life will be perfect.
So how would I go about doing that?  |
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Reply: 139 - 140 |
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| sheffy |
| Posted on: Monday, March 23rd, 2015, 11:27:21am |
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I too have recently done this mod using the lid from one of my Diesel 'Only the Brave' aftershave lids. Fits perfectly in the tubing that needs blocking off.
It is hilarious driving my car around town now and in my opinion a HKS doesn't sound £200 better.
Kimono, I am also about to increase my boost a bit and I have just purchased myself a cheap brass ebay manual boost controller.
http://www.ebay.co.uk/itm/TURB.....;hash=item33590834bd
From what i've read, you can fit one with the standard ECU and recover any lost boost as a result of a weakened actuator spring and age etc.
To increase the boost beyond the 1.13 fuel cut limit you will need either an N1, N2 or standalone ECU such as the adaptronic.
Make sure to fit a boost gauge to ensure you aren't overboosting the engine. Andy recommends the Gizzmo EBS if you wish to go electronic rather than the ball and spring type of boost controller. |
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Reply: 140 - 140 |
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