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Wastegate flapper

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70
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Jhagins1
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Wastegate flapper

Post by Jhagins1 » Mon Sep 09, 2019 11:48 am

Guys I am rebuilding the head on my 850r and have the turbo off and decided to do it while off. The wastegate flapper appears to be able to move up and down a lot. If not I. The right position it allows a gap at the top or bottom of the port. Is this normal.


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greg850r
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Re: Wastegate flapper

Post by greg850r » Mon Sep 09, 2019 9:05 pm

I don't think it's normal but I can pull one off the shelf tomorrow and check. Meantime, a pic would be helpful if you have the parts on the bench.


05 Cross Country wagon
99 C70 Convertible
96 850R wagon
96 850T wagon
96 850 GLT 5spd N/A sedan
97 850R 5spd sedan
66 GTO 421SD 4spd
67 GTO 455 T400
02 Powerstroke 4x4
85 Yota 4x4
24' 454 Challenger
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bmdubya1198
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Re: Wastegate flapper

Post by bmdubya1198 » Mon Sep 09, 2019 9:17 pm

It's normal for the flapper itself to move around a bit when it's open, but when the wastegate is closed (held shut by the actuator) it should seal tight.


2000 V70R Venetian Red/Charcoal M56 Swapped 191k
2000 S70 GLT Mystic Silver/Taupe 2??k
2003 S60 2.4T Silver/Black 108k
2007 XC90 V8 AWD Sport Titanium Grey/Black 160k
1993 944 Base Beige/Beige 221k
1992 Miata Mariner Blue/Black 146k
Sold-
1998 V70 GLT Black/Beige 193k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k- Never should have sold it

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Jhagins1
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Re: Wastegate flapper

Post by Jhagins1 » Wed Sep 11, 2019 9:17 am

I will take some pics. I jb welded it. The door fits in a bushing and the bushing moves up and down allowing it to leave a gap. I got the bushing to stop moving so now just the door moves. No more up and down. Just open and close.


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bmdubya1198
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Re: Wastegate flapper

Post by bmdubya1198 » Wed Sep 11, 2019 11:21 am

Jhagins1 wrote: ↑
Wed Sep 11, 2019 9:17 am
 I will take some pics. I jb welded it. The door fits in a bushing and the bushing moves up and down allowing it to leave a gap. I got the bushing to stop moving so now just the door moves. No more up and down. Just open and close.
Uhhh... sounds to me like you're setting yourself up for boost issues, whether that's over- or under-boosting depends on how you JB welded it.

Pics will be necessary here.
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2000 V70R Venetian Red/Charcoal M56 Swapped 191k
2000 S70 GLT Mystic Silver/Taupe 2??k
2003 S60 2.4T Silver/Black 108k
2007 XC90 V8 AWD Sport Titanium Grey/Black 160k
1993 944 Base Beige/Beige 221k
1992 Miata Mariner Blue/Black 146k
Sold-
1998 V70 GLT Black/Beige 193k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k- Never should have sold it

Need used parts? PM me!
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Jhagins1
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Re: Wastegate flapper

Post by Jhagins1 » Thu Sep 12, 2019 7:06 am

How do I add a picture


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bmdubya1198
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Re: Wastegate flapper

Post by bmdubya1198 » Thu Sep 12, 2019 7:49 am

Go into "full editor & previrw" or click "post reply" at the top of the thread, then just below the text box, you can select "attachments" and upload it from there.
Otherwise, you can post from an image hosting site like Imgur using the BB code link option.


2000 V70R Venetian Red/Charcoal M56 Swapped 191k
2000 S70 GLT Mystic Silver/Taupe 2??k
2003 S60 2.4T Silver/Black 108k
2007 XC90 V8 AWD Sport Titanium Grey/Black 160k
1993 944 Base Beige/Beige 221k
1992 Miata Mariner Blue/Black 146k
Sold-
1998 V70 GLT Black/Beige 193k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k- Never should have sold it

Need used parts? PM me!
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Jhagins1
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Re: Wastegate flapper

Post by Jhagins1 » Thu Sep 12, 2019 9:25 am

The part that is jb welded is the bushing that the flapper shaft sits in. It is the part that is moving up and down.
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bmdubya1198
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Re: Wastegate flapper

Post by bmdubya1198 » Thu Sep 12, 2019 2:36 pm

Ah, I see. I don't think I've seen that repaired that way before... best bet is to get a new turbine housing.


2000 V70R Venetian Red/Charcoal M56 Swapped 191k
2000 S70 GLT Mystic Silver/Taupe 2??k
2003 S60 2.4T Silver/Black 108k
2007 XC90 V8 AWD Sport Titanium Grey/Black 160k
1993 944 Base Beige/Beige 221k
1992 Miata Mariner Blue/Black 146k
Sold-
1998 V70 GLT Black/Beige 193k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k- Never should have sold it

Need used parts? PM me!
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ecbsykes
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ecbsykes

Re: Wastegate flapper

Post by ecbsykes » Thu Sep 12, 2019 6:34 pm

That's odd. I'd be concerned about that JB Weld inside the housing coming loose and breaking apart after so many heat cycles. Debris like that would not be great to hit spinning turbines and go down the intake into engine.


2000 V70XC - 288,000 miles
Hilton Tune, 16T Turbo, Mototec 3" downpipe, Blue injectors, IPD Short Ram Filter, Snabb Intake Piping & RIP kit, do88 Intercooler, TME Dual Exhaust, HID Projectors, R Panels, do88 Silicone Hoses
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