Info on TMAP O-Ring

j0rdan24 · 06-21-2016, 11:23 AM

Anyone have any info on where to acquire the o-ring on the TMAP? When I installed my chargepipe I noticed the TMAP o ring is a little weathered and coincidentally I've been getting a 30FF on my 335 but am hitting boost completely fine (map 5 around 14-14.5psi).

I've had vacuum lines replaced, turbos and no wg rattle.

Appreciate the help in advance!

Antetokounmpo · 06-21-2016, 12:02 PM

Measure the dimensions with a caliper then order one off mcmaster-carr, they pretty much have every size you'd ever need.

j0rdan24 · 06-21-2016, 01:19 PM

Quote:

Originally Posted by Heel Toe

Measure the dimensions with a caliper then order one off mcmaster-carr, they pretty much have every size you'd ever need.

Appreciate it but I think the o ring needs to be able to withstand a certain temperature so it's gotta be heat resistant

Antetokounmpo · 06-21-2016, 05:42 PM

Quote:

Originally Posted by j0rdan24

Appreciate it but I think the o ring needs to be able to withstand a certain temperature so it's gotta be heat resistant

You've never been on mcmaster have you? It tells you the operating temp of the o-rings they offer... for instance the high temp silicone has operating temps from -60*F to 400*F. If you're outside that range then you have bigger problems on your hands

j0rdan24 · 06-21-2016, 06:03 PM

Quote:

Originally Posted by Heel Toe

Quote:

Originally Posted by j0rdan24

Appreciate it but I think the o ring needs to be able to withstand a certain temperature so it's gotta be heat resistant

You've never been on mcmaster have you? It tells you the operating temp of the o-rings they offer... for instance the high temp silicone has operating temps from -60*F to 400*F. If you're outside that range then you have bigger problems on your hands

I've never been, I'll give it a look. Thanks for the help

ferocity02 · 06-21-2016, 08:34 PM

Mcmaster is a great place, but for orings especially there may be some trial and error in getting the right size. And orings of that size probably come in packs of 25, 50, or 100.

vtl · 06-22-2016, 01:18 AM

10x2mm oring = 10mm inside diameter, 2mm thickness

http://www.ebay.com.au/itm/1pc-o-rin...item84bf5d2d33

This does the trick, a Viton oring would be a little better but Nitrile is completely fine. Buy 2 so you can do the sensor in the manifold and charge pipe.

Antetokounmpo · 06-22-2016, 07:16 AM

http://www.mcmaster.com/#1172n57/=12yor93

^^ There you have it from a reputable source. Mcmaster also has very fast shipping, take your pick.

vtl · 06-22-2016, 07:35 AM

Quote:

Originally Posted by Heel Toe

http://www.mcmaster.com/#1172n57/=12yor93

^^ There you have it from a reputable source. Mcmaster also has very fast shipping, take your pick.

EDPM rubber, I wouldnt buy that one. Poor resistance to petroleum products (e.g engine oil). Intake tract is covered in engine oil

Antetokounmpo · 06-22-2016, 09:22 AM

Quote:

Originally Posted by vtl

EDPM rubber, I wouldnt buy that one. Poor resistance to petroleum products (e.g engine oil). Intake tract is covered in engine oil

True.. viton is also available.

j0rdan24 · 06-22-2016, 09:58 AM

Quote:

Originally Posted by vtl

10x2mm oring = 10mm inside diameter, 2mm thickness

http://www.ebay.com.au/itm/1pc-o-rin...item84bf5d2d33

This does the trick, a Viton oring would be a little better but Nitrile is completely fine. Buy 2 so you can do the sensor in the manifold and charge pipe.

Awesome, much appreciated.

Are you currently using these o-rings? If so, how are they holding up so far?

vtl · 06-22-2016, 05:29 PM

Quote:

Originally Posted by j0rdan24

Awesome, much appreciated.

Are you currently using these o-rings? If so, how are they holding up so far?

Yes running them on my car and have replaced them on a bunch of my friends cars with chipped orings. No issues after several months. The seal is tighter than an old OEM o-ring as well, the originals had a looser fit, assuming cos they are old and compressed.

Hacksaw · 06-22-2016, 07:08 PM

This is what you should be looking for:

http://www.mcmaster.com/#9263k174/=12yxx6n

Or if you are in a pinch and happen to have a set of metric ac system o-rings available there should be at least a set of them in there too.

06-21-2016, 11:23 AM	#1
j0rdan24 Private 12 Rep 51 Posts Drives: 335i Join Date: Jul 2014 Location: Los Angeles iTrader: (1)	Info on TMAP O-Ring Anyone have any info on where to acquire the o-ring on the TMAP? When I installed my chargepipe I noticed the TMAP o ring is a little weathered and coincidentally I've been getting a 30FF on my 335 but am hitting boost completely fine (map 5 around 14-14.5psi). I've had vacuum lines replaced, turbos and no wg rattle. Appreciate the help in advance!
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06-21-2016, 12:02 PM	#2
Antetokounmpo Brigadier General 1552 Rep 3,475 Posts Drives: E90 6MT FBO; '18 F150 Platinum Join Date: Jul 2013 Location: WI iTrader: (3) Garage List 2018 Ford F-150 Pla ... [0.00] 2008 BMW 335xi [0.00]	Measure the dimensions with a caliper then order one off mcmaster-carr, they pretty much have every size you'd ever need. __________________ 2008 335xi 6MT \| VRSF Catless DP \| VRSF 7" FMIC \| VRSF CP \| TIAL BOV \| DCI \| MHD 2+ BC Racing BR \| Stoptech 600 \| Firehawk Indy 500 255 Square \| Atric Altimax 225 Sq. 2018 F-150 Platinum 701A \| FX4 \| 3.5 EcoBeast
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06-21-2016, 08:34 PM	#6
ferocity02 Colonel 530 Rep 2,083 Posts Drives: 2013 135is Join Date: May 2014 Location: USA iTrader: (8)	Mcmaster is a great place, but for orings especially there may be some trial and error in getting the right size. And orings of that size probably come in packs of 25, 50, or 100.
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06-22-2016, 01:18 AM	#7
vtl Brigadier General 1495 Rep 3,148 Posts Drives: 2008 BMW 135i MT Join Date: Apr 2015 Location: Melbourne, Australia iTrader: (0)	10x2mm oring = 10mm inside diameter, 2mm thickness http://www.ebay.com.au/itm/1pc-o-rin...item84bf5d2d33 This does the trick, a Viton oring would be a little better but Nitrile is completely fine. Buy 2 so you can do the sensor in the manifold and charge pipe. __________________ Build Thread
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06-22-2016, 07:16 AM	#8
Antetokounmpo Brigadier General 1552 Rep 3,475 Posts Drives: E90 6MT FBO; '18 F150 Platinum Join Date: Jul 2013 Location: WI iTrader: (3) Garage List 2018 Ford F-150 Pla ... [0.00] 2008 BMW 335xi [0.00]	http://www.mcmaster.com/#1172n57/=12yor93 ^^ There you have it from a reputable source. Mcmaster also has very fast shipping, take your pick. __________________ 2008 335xi 6MT \| VRSF Catless DP \| VRSF 7" FMIC \| VRSF CP \| TIAL BOV \| DCI \| MHD 2+ BC Racing BR \| Stoptech 600 \| Firehawk Indy 500 255 Square \| Atric Altimax 225 Sq. 2018 F-150 Platinum 701A \| FX4 \| 3.5 EcoBeast
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06-22-2016, 07:08 PM	#13
Hacksaw Private First Class 25 Rep 116 Posts Drives: 2011 335i Join Date: May 2016 Location: SA TX iTrader: (0) Garage List 2011 BMW 335i [0.00]	This is what you should be looking for: http://www.mcmaster.com/#9263k174/=12yxx6n Or if you are in a pinch and happen to have a set of metric ac system o-rings available there should be at least a set of them in there too. __________________ '11 BMW///335i Sedan Black Sapphire Metallic\|Dakota Blk Lthr\|Sport Seats\|M Sport Sus PKG\|Nav\| '02 BMW ///M3Imola Red\|Blk Cloth\|6M\|TFS CSL TUNE - MSS54HP\|CSL Rep Airbox\|Euro Headers\|StopTech ST-40 BBKs\|Kirk 4pt Bar\|CF CSL Trunk\|GC Race F/R Sways\|
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