What is this and can it be removed?

RX MIDGET · 03-03-2011, 09:01 PM

Hi all,
On top of my 13b second plate (smack in the centre on top of the motor) I have a sender looking fitting with a black rubber cover over it. It has electrical connectors and it is not connected to anything.

In size it is approx 60mm x 30mm and fastened to the plate with 2 x M12 bolts.

What is this used for? (Guessing pressure sender???)
As this is not in use can it simply be removed and a blank plate fitted?

Any comments anyone?

Engine is a 13B non turbo.

djmtsu · 03-03-2011, 09:21 PM

Hmm.. what year is the engine?

Could it be the EGR? I am trying to think back, but I don't remember anything that resembles that. Of course, I throw out all emissions on everything

turboed13b · 03-03-2011, 10:23 PM

yep sounds like egr to me.

N.RotaryTech · 03-04-2011, 07:30 AM

yep x2
That is where the EGR component goes, on S4 engines. Remove it then install a block-off plate.
Although I don't recall any electrical connectors, must be an Australian component. ?

***TitaniumTT*** · 03-04-2011, 08:33 AM

Yeah, sounds EGR to me, but the US-Spec engines didn't have an electrical connector on it, just a vac line... I think... been a while since I've seen one of those

Also.... when you say M12 bolt.... do you mean that it uses a 12m socket to take it off.... because that's not the correct way to denote threads.

RX MIDGET · 03-05-2011, 05:48 AM

Hi all,
I know very little about the engine. It was installed in the Midget when I bought it. On purchase the previous owner advised "the 13b is Extend Ported and a mix of various series components". Has a detailed receipt on engine rebuild, however does not list origin of components.
Point taken re the bolt detail.
Thanks all, I will remove and blank off.

***TitaniumTT*** · 03-05-2011, 07:48 AM

Pics are worth MORE than a thousand words when trying to figure these things out. Chances are if you took some detailed pics of the engine from various angles, we would be able to figure out which series of parts were used for the waterpumps, rotor housings, side plates, etc etc etc. Best is obviously to take it apart, but that's probably not an option at this point is it?

RX MIDGET · 03-10-2011, 03:42 PM

Hi all,
Pics of the unknown "switch".
If someone can identify the item, I would be appreciative.

One pic is with the rubber boot removed.

Thanks!

djmtsu · 03-10-2011, 03:53 PM

Looks like an EGR to me.

Rip it off and put on a block off plate.

jfaplanet · 03-10-2011, 05:19 PM

Old school motors had that, it has to do with emissions. Not sure what it is or what it does. Neal would be able to tell you. (kansei on the forum) He's an expert on oem.

03-03-2011, 09:01 PM	#1
RX MIDGET MG rocket Join Date: Oct 2010 Location: Victoria Australia iTrader: (0) Posts: 40 Rep Power: 0	What is this and can it be removed? Hi all, On top of my 13b second plate (smack in the centre on top of the motor) I have a sender looking fitting with a black rubber cover over it. It has electrical connectors and it is not connected to anything. In size it is approx 60mm x 30mm and fastened to the plate with 2 x M12 bolts. What is this used for? (Guessing pressure sender???) As this is not in use can it simply be removed and a blank plate fitted? Any comments anyone? Engine is a 13B non turbo.

03-03-2011, 09:21 PM	#2
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (10) Posts: 4,043 Rep Power: 21	Hmm.. what year is the engine? Could it be the EGR? I am trying to think back, but I don't remember anything that resembles that. Of course, I throw out all emissions on everything __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

03-04-2011, 07:30 AM	#4
N.RotaryTech Home-brew Rotary Join Date: Feb 2008 Location: GooseCreek SC iTrader: (0) Posts: 552 Rep Power: 17	yep x2 That is where the EGR component goes, on S4 engines. Remove it then install a block-off plate. Although I don't recall any electrical connectors, must be an Australian component. ? __________________ '89 RX7 GTU, half-Bridge-port S4/S5 NA, E6K, Full RB exhaust, weekend warrior. '83 RX7, The "this might take awhile" project. '87 RX7 GXL, Rest In Pieces. '98 Subaru Impreza Outback-sport, rx7 rescue vehicle, down for repair. '94 Ford Ranger, daily.

03-04-2011, 08:33 AM	#5
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	Yeah, sounds EGR to me, but the US-Spec engines didn't have an electrical connector on it, just a vac line... I think... been a while since I've seen one of those Also.... when you say M12 bolt.... do you mean that it uses a 12m socket to take it off.... because that's not the correct way to denote threads. __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

03-05-2011, 07:48 AM	#7
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	Pics are worth MORE than a thousand words when trying to figure these things out. Chances are if you took some detailed pics of the engine from various angles, we would be able to figure out which series of parts were used for the waterpumps, rotor housings, side plates, etc etc etc. Best is obviously to take it apart, but that's probably not an option at this point is it? __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

03-03-2011, 10:23 PM	#3
turboed13b Rotary Fanatic Join Date: Feb 2008 iTrader: (1) Posts: 116 Rep Power: 17	yep sounds like egr to me.

03-05-2011, 05:48 AM	#6
RX MIDGET MG rocket Join Date: Oct 2010 Location: Victoria Australia iTrader: (0) Posts: 40 Rep Power: 0	Hi all, I know very little about the engine. It was installed in the Midget when I bought it. On purchase the previous owner advised "the 13b is Extend Ported and a mix of various series components". Has a detailed receipt on engine rebuild, however does not list origin of components. Point taken re the bolt detail. Thanks all, I will remove and blank off.

03-10-2011, 03:53 PM	#9
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (10) Posts: 4,043 Rep Power: 21	Looks like an EGR to me. Rip it off and put on a block off plate. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

03-10-2011, 05:19 PM	#10
jfaplanet Rotary Fanatic Join Date: Feb 2008 Location: Smyrna, TN iTrader: (0) Posts: 134 Rep Power: 17	74-77 repu Old school motors had that, it has to do with emissions. Not sure what it is or what it does. Neal would be able to tell you. (kansei on the forum) He's an expert on oem.