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PostPosted: Thu Oct 25, 2018 11:03 am 
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Location: Dearborn, MI
Year and Trim: '93 SSEi
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'97 LeSabre
Does anybody know what size or have a part number for the oring on the top vacuum tee on the M90's? Mine is stretched and cut apparently...

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'92 Olds Trofeo - Fair weather DD
'84 GMC Sierra Classic - Twin turbo 3800
'97 Buick LeSabre - L67 winter DD
'92 Pontiac Bonneville SSE future project

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'87 Buick LeSabre T-type - future victim
'67 Buick LeSabre - future victim


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PostPosted: Thu Oct 25, 2018 11:36 am 
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Joined: Tue Aug 25, 2009 8:32 pm
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Location: Dearborn, MI
Year and Trim: '93 SSEi
'05 STS-4
'97 Camaro
'97 LeSabre
Found the OE part number: 24503492 O-RING SEAL-0.864

It's discontinued. Still searching for what size it is..

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Blow all the things! Wait, I meant boost. Boost!
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Runs:
'93 Pontiac Bonneville SSEi - Twincharged, manual, and lots more! Build thread
'97 Chevy Camaro - 3800 supercharged, T5, T-tops
'05 Cadillac STS - V8, AWD, her DD
'92 Olds Trofeo - Fair weather DD
'84 GMC Sierra Classic - Twin turbo 3800
'97 Buick LeSabre - L67 winter DD
'92 Pontiac Bonneville SSE future project

Doesn't run:
'87 Buick LeSabre T-type - future victim
'67 Buick LeSabre - future victim


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PostPosted: Thu Oct 25, 2018 12:38 pm 
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Location: Grand Rapids, Michigan
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This site indicates that they have it in stock, as well as giving the dimensions.
http://oemcats.com/oem-parts/24503492.html

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PostPosted: Thu Oct 25, 2018 12:45 pm 
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Joined: Mon May 19, 2008 6:04 pm
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Location: Browerville, MN
Year and Trim: 2004 GXP - plus a handful of other Bonnevilles
They are always stretched out. I tried a couple different ones from my standard o-ring kit and got one to work. I'm assuming you have the vacuum tree, just grab some and start test fitting...

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PostPosted: Fri Oct 26, 2018 9:28 am 
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Certified Bonneville Nut
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Joined: Tue Aug 25, 2009 8:32 pm
Posts: 4425
Location: Dearborn, MI
Year and Trim: '93 SSEi
'05 STS-4
'97 Camaro
'97 LeSabre
I ended up with two different O-rings to try. The first is metric, 22mm ID x 2.5mm cross-section, the other standard 7/8 ID x 3/32 cross section - which is as close to the sizes listed in the link above I could find locally.

Both are a tight fit, need some grease to get the vac manifold installed again, but they work.

_________________
Blow all the things! Wait, I meant boost. Boost!
Image

Runs:
'93 Pontiac Bonneville SSEi - Twincharged, manual, and lots more! Build thread
'97 Chevy Camaro - 3800 supercharged, T5, T-tops
'05 Cadillac STS - V8, AWD, her DD
'92 Olds Trofeo - Fair weather DD
'84 GMC Sierra Classic - Twin turbo 3800
'97 Buick LeSabre - L67 winter DD
'92 Pontiac Bonneville SSE future project

Doesn't run:
'87 Buick LeSabre T-type - future victim
'67 Buick LeSabre - future victim


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 Profile  
 
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