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Top 2GNT Technical Turbo/Nitrous Tech topic #91137
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Subject: "Friend has boost problems...." Previous topic | Next topic
totaleclipse_05Nov-04-05 07:42 AM
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#91137, "Friend has boost problems...."


          

Hey everyone, I was helping my friend try to fix his turbo'ed 420a, because it stopped boosting. We checked all his clamps on his piping and they are all tight. He replaced the pcv stuff today and that didn't cure it. Basically, we took a test drive last night and his gauge, when he revs it, zeros out and as his revs get higher up (5,000 and up) the gauge begins to read 3-4 vacuum. When its under a load, he can get to maybe 1 psi of boost, but thats it. I'm going to try to do more searching on here, but I haven't found anything yet so that's why I posted. Anybody have any ideas?

Mike D
-------------------------------------------------------------------------------------------------

Originally posted by DR1665
You're welcome to all the beer you can drink, but you have to go get it yourself. Don't get pissy when we point to the fridge and tell you to get it yourself.

  

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Replies to this topic
RE: Friend has boost problems...., eclipse96rs_n, Nov-04-05 08:26 AM, #1
RE: Friend has boost problems...., DSMcrazy3, Nov-04-05 08:45 AM, #2
      RE: Friend has boost problems...., Global Ruler Of All ThingsDarkOne, Nov-04-05 08:57 AM, #3
           RE: Friend has boost problems...., DSMcrazy3, Nov-04-05 09:03 AM, #4
           RE: Friend has boost problems...., DSMcrazy3, Nov-04-05 12:52 PM, #5
                RE: Friend has boost problems...., Aggression, Nov-05-05 08:29 AM, #6

eclipse96rs_nNov-04-05 08:26 AM
Member since Dec 31st 2002
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#91138, "RE: Friend has boost problems...."
In response to Reply # 0


          

Check the wastegate maybe it lost the pin that holds it and it stays open.

  

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DSMcrazy3Nov-04-05 08:45 AM
Member since Feb 16th 2005
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#91139, "RE: Friend has boost problems...."
In response to Reply # 1


          

What's up, I'm the guy with the problem. I don't have a cotter pin going through to hold the actuator arm on, but I do have an e-clip.

I bought the new PCV valve today, and before I put it on I tried blowing through it, and I could. It wasn't as easy to blow through as my original one, but I could still do it. I guess that is still the problem? B/c if I can blow through it doesn't that just mean that the pressurized air in the intake is escaping out there? Later I'm going to cap off the nipple on the intake and see if I build boost then or not.

How is it possible to register vaccum with the throttle open?

-----------------------------
95 Eclipse RS-T
Custom T3 60 Trim turbo kit.



-Josh

  

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Global Ruler Of All ThingsDarkOneNov-04-05 08:57 AM
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#91140, "RE: Friend has boost problems...."
In response to Reply # 2




          

It's not the PCV. Even if you had no valve there at all you'd still make boost.

Check your turbo, and recheck your piping. Check your BOV. Make a boost leak tester (search before you ask what it is) and use it.

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

  

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DSMcrazy3Nov-04-05 09:03 AM
Member since Feb 16th 2005
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#91142, "RE: Friend has boost problems...."
In response to Reply # 3


          

I do get some boost, 1-2 psi.

-----------------------------
95 Eclipse RS-T
Custom T3 60 Trim turbo kit.



-Josh

  

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DSMcrazy3Nov-04-05 12:52 PM
Member since Feb 16th 2005
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#91145, "RE: Friend has boost problems...."
In response to Reply # 3


          

Originally posted by DarkOne
It's not the PCV. Even if you had no valve there at all you'd still make boost. Check your turbo, and recheck your piping. Check your BOV. Make a boost leak tester (search before you ask what it is) and use it.


What should I check in the turbo? There is alittle shaft play, but the fins were still good.

-----------------------------
95 Eclipse RS-T
Custom T3 60 Trim turbo kit.



-Josh

  

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AggressionNov-05-05 08:29 AM
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#91153, "RE: Friend has boost problems...."
In response to Reply # 5




          

make yourself a boost leak tester like D said!

--------------------


- 05 Subaru STi
- 97 eclipse gs (289whp w/ 276tq)

  

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