Greddy Type-S Problem. Please Read!!!

[jm1080]

ok so I bought a used type-s on ebay (authentic) and it was in real good condition. Anyways when I put on my hard IC pipes I installed it and I noticed that the threads were gone from the inside of the bov where the screw adjusts.

So I got help from some of the guys in the forums. Paul made new threads on the BOV, and put in a new screw, just a bit bigger so it can fit in the new threads. There are no leaks now or anything when adjusted hard. But you cant hear the whistle that the type-S is known for Anyways I start to loosen it up and u hear a soft whistle on idle like a leak. And when I tighten it it goes away. Does anyone have any idea how I can get the whistle back? Could it be the new screw that we put in?

By the way before it made the really nice whiste. Now if it makes a really bad whistle like 30seconds after it blows off and it sounds like a dying bird.....plus its real soft and it sometimes just whistles slowly on idle when i loosen it up.. Anyone have any idea??

Thanks!

 

[bluetlr2001]

You shouldnt need it adjusted hard. But have you tried doing the single spring mod. Im think you can find more on it on here i believe. And also have you taken out the diaphragm and looked at it to make sure its not shot. I bought a used one also and wound up having to replace the diaphragm. They are discontinued now though but here is the link to the place i bought mine from that still had some in stock. Just email them and see if they still have some if you wind up needing one.

 

[twoTSis]

This definitely discourages me from buying on eBay. Are you positive that there isn't a leak anywhere at all?

 

[jm1080]

You shouldnt need it adjusted hard. But have you tried doing the single spring mod. Im think you can find more on it on here i believe. And also have you taken out the diaphragm and looked at it to make sure its not shot. I bought a used one also and wound up having to replace the diaphragm. They are discontinued now though but here is the link to the place i bought mine from that still had some in stock. Just email them and see if they still have some if you wind up needing one.

if i loosen it up it starts to leak though, I loosened it up a bit. Ill try to loosen it all da way tomorrow and see if it stops leaking. Also when paul opened the BOV i didnt really pay attention, all I saw was 1 spring a big type spring and a little plate above it, im assuming thats what pushes down the spring when u adjust it. I didnt really pay attention to the diaphram.

Also wheres the link???

 

[bluetlr2001]

Sorry i just realized i didnt post the link. And it sounds like you have the single sring mod already. You may need both springs since it leaks with the one spring. But it will have a large spring with a smaller spring inside of it. If it doesnt have both you can get a knock off type s and take the springs out of it. Or if you will pay shipping ive got 2 knock offs that i will take the springs out of 1 and send them to you. And when you look at the diaphragm you need to pull it out and open it all the way up. But heres the link. Its probally more than you paid for the bov, in mycase it was but when i fixed it i was very happy with it now

SAVE on GReddy Type S Type R BOV - RacingWorks.com - Secure Online Shopping

 

[jm1080]

Sorry i just realized i didnt post the link. And it sounds like you have the single sring mod already. You may need both springs since it leaks with the one spring. But it will have a large spring with a smaller spring inside of it. If it doesnt have both you can get a knock off type s and take the springs out of it. Or if you will pay shipping ive got 2 knock offs that i will take the springs out of 1 and send them to you. And when you look at the diaphragm you need to pull it out and open it all the way up. But heres the link. Its probally more than you paid for the bov, in mycase it was but when i fixed it i was very happy with it now

SAVE on GReddy Type S Type R BOV - RacingWorks.com - Secure Online Shopping

damn i just checked the diaphram and it 63 bucks!! is it the whole purple part? including the screw? Or what does it contain?

Also I dont get though why before when i was getting compressor surge on idle and we were adjusting the screw it made the perfect loud noise its supposed to make? Except for the bad idle , so we tightened it and it was fixed but then the threads were gone and thats when we put the new screw in. And it idles perfectly now but it sounds like a type rs now. And it doesnt make the type-s noise..

 

[WhoTippedMyCoW]

Hi, i bought a used Greddy type S off ebay as well. When i put it on i recirculated it into my injen intake and i got no sound. When i put the stock intake back on and recirculated it into that i got the sound out of it. Maybe try that if ## running a aftermarket intake. I think the type S is rated for like 350+ HP so maybe not enough pressure or whatever it is.

 

[jm1080]

Hi, i bought a used Greddy type S off ebay as well. When i put it on i recirculated it into my injen intake and i got no sound. When i put the stock intake back on and recirculated it into that i got the sound out of it. Maybe try that if ## running a aftermarket intake. I think the type S is rated for like 350+ HP so maybe not enough pressure or whatever it is.

I found out what diaphragm was , im going to check and see if it is good tomorrow or not.

Anyways I have expremepsi intake but when i was getting idle surge it would make the noise really nicely and loud. But then when we put the new screw in and I found out i had 1 spring I cant seem to find how to get the noise to come back, if its too tight it flutters and it i loosen it up more its just a type-rs basically. Im running 14psi as well

 

[bluetlr2001]

The reason you get the sound with it loosened is because the piston has room to move. But with it loosened up you get crappy idle becasue the piston is not seated or doesnt have enough pressure to keep it closed at idle since it only has 1 spring in it so it is leaking metered air at idle. When you tightened the screw up it pushes down on the spring which puts more pressues on the piston and keeps it from moving enough to give you the bov sound.

 

[endeffect0]

I am personally running with both springs in my typeS i also have the bottom nipple from the lower cast peice of the bov taped into a boost source at my turbo. this helped with getting the classic type S chirp. with one spring i either had to tighten it down ridiculously to keep it from leaking with no typeS chirp or loosen it to get the chirp with a leak before full boost.

anouther thing you should check is to see if the o ring on the bottom of the valve is in good condition this will cause a leaky BOV and odd performance/ sound.

Be sure you are using both springs and both boost sources. this seems to be the way greddy intended it to work. also as a side note when the cheap aluminum top hat stripped out on mine i just bought a new 'greddy style types' Bov on Ebay I took the top hat off of that and threw it on my actual greddy bov, worked great and only cost me 20$.

 

[jm1080]

I am personally running with both springs in my typeS i also have the bottom nipple from the lower cast peice of the bov taped into a boost source at my turbo. this helped with getting the classic type S chirp. with one spring i either had to tighten it down ridiculously to keep it from leaking with no typeS chirp or loosen it to get the chirp with a leak before full boost.

anouther thing you should check is to see if the o ring on the bottom of the valve is in good condition this will cause a leaky BOV and odd performance/ sound.

Be sure you are using both springs and both boost sources. this seems to be the way greddy intended it to work. also as a side note when the cheap aluminum top hat stripped out on mine i just bought a new 'greddy style types' Bov on Ebay I took the top hat off of that and threw it on my actual greddy bov, worked great and only cost me 20$.

How do i connect the bottom nipple from the bov. Its really small, you know? You have a pic? Maybe I can better understand how you did it. When I got the bov the o-ring looked in good condition.

And do you mean you bought a knock off type s on ebay and replaced the whole top (purple part) and put it onto your real one? What about the diaphragm, arent they different?

 

[soldave]

Be sure you are using both springs and both boost sources. this seems to be the way greddy intended it to work.

Although not, I believe, how GReddy states in their documentation it should work. It states the lower nipple should only be used in certain circumstances when the need arises, and is not normally used.

 

[jm1080]

Although not, I believe, how GReddy states in their documentation it should work. It states the lower nipple should only be used in certain circumstances when the need arises, and is not normally used.

hey soldave I saw your old thread when u had problems with your type-s. I had to do what u did . Hows it working for you?

Anyways well I loosened up the screw and it makes the really nice noise now and idle is fine Only prob is I think it is leaking very little because sometimes when I just accelerate or not in boost and let go of gas pedal you hear the bov just make a hiss whistle. Sometimes annoying when im just cruising cause it is constant zzzzzzzzzzzzzz . Should I loosen it up more or something? Im going to post a video tomorrow so all of u guys can see

 

[soldave]

You could try putting teflon tape on the new adjusting bolt and see if that works.

My repaired BOV was working well until the thing decided to just come apart while I was driving. Turned out the clown who had the BOV before me decided that he would JB weld the flange together. Not a good idea. So the flange just split in 2 on my while I was driving and I had to limp home with my car sounding biblical!

Got a new flange being made by someone who knows what they're doing though, so should be ok soon.

 

[jm1080]

You could try putting teflon tape on the new adjusting bolt and see if that works.

My repaired BOV was working well until the thing decided to just come apart while I was driving. Turned out the clown who had the BOV before me decided that he would JB weld the flange together. Not a good idea. So the flange just split in 2 on my while I was driving and I had to limp home with my car sounding biblical!

Got a new flange being made by someone who knows what they're doing though, so should be ok soon.

Damn that sucks. Mines good luckily. And I put teflon on the new screw. Where else should I put teflon?

 

[jm1080]

ok here vids you have to click on the first 2 pics to see vids:

Uncle not good with cam

You must be logged in to view this image or video.

Car running, put speakers loud I can barely hear but im using headphoens to listen.

You must be logged in to view this image or video.

This is the noise im looking for

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<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/IPOEjAnQIlI&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/IPOEjAnQIlI&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>

i dont know if i should soften or harden??

 

[soldave]

One thing you could try is this:

Take off the cap of the BOV and move the diaphragm around so the hole in the metal ring (I hope you know what I'm talking about) is pointing towards the lower nipple. That helped me a little. And just keep adjusting it. Mine took a bit of tightening and loosening to work out.

 

[jm1080]

One thing you could try is this:

Take off the cap of the BOV and move the diaphragm around so the hole in the metal ring (I hope you know what I'm talking about) is pointing towards the lower nipple. That helped me a little. And just keep adjusting it. Mine took a bit of tightening and loosening to work out.

hmm, I have to take off the bov cap I just dont want to *F* it up and nope I have no idea what your talking about , i guess i have to take it off inorder to see what your saying. You mean the metal ring that goes ontop of the spring?

By the way did you ever get the noise Im getting? and were u able to get it to the real nice noise from the other vids?

 

[Badgst96]

By the way before it made the really nice whiste. Now if it makes a really bad whistle like 30seconds after it blows off and it sounds like a dying bird.....plus its real soft and it sometimes just whistles slowly on idle when i loosen it up.. Anyone have any idea??

Thanks![/QUOTE]

The reason its making that long ass whistle is because the valve is not closing fast enough on its seat, thats what is really crappy about the diaphram blow offs man preferebly the Greddy Type-S. I owned two of these before and the screw would always pop off and to tell you the truth it never quit doing that noise. I checked this at a perf shop and they said the springs were not putting down enough force. Greddy is known for this i guess from what i hear and experienced

 

[soldave]

By the way before it made the really nice whiste. Now if it makes a really bad whistle like 30seconds after it blows off and it sounds like a dying bird.....plus its real soft and it sometimes just whistles slowly on idle when i loosen it up.. Anyone have any idea??

Thanks!

The reason its making that long ass whistle is because the valve is not closing fast enough on its seat, thats what is really crappy about the diaphram blow offs man preferebly the Greddy Type-S. I owned two of these before and the screw would always pop off and to tell you the truth it never quit doing that noise. I checked this at a perf shop and they said the springs were not putting down enough force. Greddy is known for this i guess from what i hear and experienced

Well if the BOV is not closing fast enough then you will need to tighten the adjustment screw so that it closes quicker but doesn't cause much compressor surge. There is a useful but old guide somewhere here on the forums.

 

[PieEyedPiper]

ok here vids you have to click on the first 2 pics to see vids:

Uncle not good with cam


Car running, put speakers loud I can barely hear but im using headphoens to listen.



This is the noise im looking for



i dont know if i should soften or harden??

1g BOVs are notorious for this. Its normal.
My own 1g bov did this too.
Currently, my type-s just started this behavior and I think I just need to tighten the bov a tad.

 

[Badgst96]

Well if the BOV is not closing fast enough then you will need to tighten the adjustment screw so that it closes quicker but doesn't cause much compressor surge. There is a useful but old guide somewhere here on the forums.

Yea man i dont get it really, i mean your right ya know but that whistle is the valve not closing fast enough on its seat.. hmmm i have seen that guide your talking about ill try to look for it..

 

[jm1080]

1g BOVs are notorious for this. Its normal.
My own 1g bov did this too.
Currently, my type-s just started this behavior and I think I just need to tighten the bov a tad.

o so your type-s is sounding the same as mine? Are you guys running 1 spring or 2 springs? Maybe I need the 2nd spring?? Im going to adjust it right now. I want to fix it

 

[soldave]

I did try the single spring mod and it didn't work for me (kind of sounded like yours). Ended up going back to 2 springs, teflon taping everything I could and backing the adjustment screw out to stop compressor surge. It's as good as it can be now.

 

[jm1080]

Well I went off for a ride and it was on soft almost all the way I think havnt taken out screw, anyways it sounded like my vids. But then I tightened it more and more and it got the real nice noise, but only in boost, then after it makes the nice noise it sounds like my first video. I then tightened alot more, I used my hands to tighten it since the screw is a bit bigger than normal, until I couldnt tighten anymore with hands and it makes nice noise, but after the nice noise it makes that after ugly sound as if it was leaking like the first vid even when barely accelerating.

Maybe I need 2 springs and more teflon. I wonder why the previous owner of the type-s took the spring off then.

By the way, when loosening all way and tightening all way there are no compressor surges. My idle is always fine. Is that strange?