coolant lines leading to EGR spacer

grant66 · 08-14-2002, 01:23 PM

I had some mechanic take the lines off this system and plug them up. The idea was to reduce the heat into the engine. My understanding is that the system works to get the car to better operating temperatures at very cold temperatures. I can't figure where to hook the coolant line that runs right by the egr to the back of the engine. Please help any one!

Mach 1 · 08-14-2002, 01:31 PM

There is a fitting screwed into the back of the lower manifold with a nipple on it. Attach the line there.

grant66 · 08-14-2002, 02:16 PM

What side of the manifold? Is is located near the Gas reserculaton hole. In what directon? Or what bolt is it next to on the torqueing sequences?

RPM427 · 08-14-2002, 03:27 PM

Those coolant lines are there to cool the exhaust gas before it enters the engine. if you still have an operating EGR valve, youmight want to reconnect them.

84LX89GT · 08-14-2002, 03:30 PM

From what i understand the coolant through the spacer is designed for 2 different things.
1. To warm up the engine faster in cold operation
2. to cool down the incoming air and manifold when hot because the EGR valve is mounted on the other side, which exhaust gas is ALOT hotter than coolant. The coolant takes away the heat from the throttle body and circulates it back through the system.

Mach 1 · 08-14-2002, 03:39 PM

Its near the back, passenger side of the lower intake. Not hard to find. Your mechanic eithier removed the nipple and installed a plug, or plugged the nipple with something. If you look down and back from where the coolant line comes out the back of the spacer, you ll be in the right area.

"Is is located near the Gas reserculaton hole"?

No, not at all. Its on the lower manifold, not the upper.

grant66 · 08-14-2002, 06:24 PM

I appreciate your replies. For some reason I can't find the nipple. I will check it out to night with better light.

84LX89GT is probably correct. That is what I have heard about the spacer. I have really cold winters so, it is especially important.

Mach 1 · 08-14-2002, 06:49 PM

Quote:

Originally posted by grant66
I appreciate your replies. For some reason I can't find the nipple. I will check it out to night with better light.

84LX89GT is probably correct. That is what I have heard about the spacer. I have really cold winters so, it is especially important.

Im not so sure I buy into the "help warm the engine in the winter" theory. After all, if the coolant is warm, so is the engine.

grant66 · 08-14-2002, 11:29 PM

What about warming the air in the spacer when the temperature is -20F.

RPM427 · 08-15-2002, 07:50 AM

I don't think the coolant lines are designed to heat up the upper intake. What would be the point of heating it up? Heating the combustion chamber and the cylinder heads would be important (thats why you have a thermostat) but heating the upper intake would serve no purpose other then slightly heating up the air. But the EGR valve is used for that purpose among other things.

Anyone agree or disagree?

Mach 1 · 08-15-2002, 08:00 AM

Quote:

Originally posted by grant66
What about warming the air in the spacer when the temperature is -20F.

No, cold air is your friend. The colder, the better

grant66 · 08-15-2002, 08:45 AM

Is the nipple running verticle? On the passenger side of the lower manifold I see a regular bolt that is in the torquing sequence. Then I see a larger bolt with a weld on it. I wonder if this nipple is threaded. These guys could of unscrewed it and ground off the nipple and then put a couple of welds to seal the hole.

Mach 1 · 08-15-2002, 09:33 AM

Yeah, that sounds like you found it.

Lethal5Oh · 08-15-2002, 07:37 PM

Mach 1, you said cold air is your freind. Thats if your trying to build horse power, but Ford was thinking gas mileage and emission and smooth running.

fiveohpatrol · 08-15-2002, 09:26 PM

hook them back up, as it was said before, the EGR gasses are by far hotter than the coolant going through those lines. I dont have mine hooked up, because my Intake doesnt have provisions for EGR so my valve isnt hooked up.

If your mechanic knew what he was doing in the first place, then he wouldnt have removed those lines. So now, as it sits, your intake is hotter than it was when the lines were hooked up.

Mach 1 · 08-15-2002, 09:48 PM

Quote:

Originally posted by Lethal5Oh
Mach 1, you said cold air is your freind. Thats if your trying to build horse power, but Ford was thinking gas mileage and emission and smooth running.

Actually, Ford was thinking to cool down the EGR spacer, as thats why the coolant lines are there. To COOL things down, not to heat them up.

later

grant66 · 08-15-2002, 11:17 PM

Does any one out there what to send me the threaded nipple for a reasonable price? It would be much appreciated. Thankx.

302 LX Eric · 08-16-2002, 08:41 AM

Your best bet would be to pop into your local Ford dealer and purchase the part there. Or, just run down to NAPA, etc. and buy it from them.

E

grant66 · 08-16-2002, 09:09 AM

I need to buy an treaded nipple on the passenger side of a stock 5.0 lower manifold. This nipple holds collant that has already gone through the egr spacer. If some one would sell this to me for a reasonable price I would very much appreciate it.

Mach 1 · 08-16-2002, 11:15 AM

Your local Ford dealer would probably sell it to you at a reasonable price. It cant be more than a few dollars.

08-14-2002, 01:23 PM	#1
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	coolant lines leading to EGR spacer I had some mechanic take the lines off this system and plug them up. The idea was to reduce the heat into the engine. My understanding is that the system works to get the car to better operating temperatures at very cold temperatures. I can't figure where to hook the coolant line that runs right by the egr to the back of the engine. Please help any one! __________________ If it isn't broke you are not trying.

08-14-2002, 01:31 PM	#2
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	There is a fitting screwed into the back of the lower manifold with a nipple on it. Attach the line there. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

08-14-2002, 02:16 PM	#3
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	What side of the manifold? What side of the manifold? Is is located near the Gas reserculaton hole. In what directon? Or what bolt is it next to on the torqueing sequences? __________________ If it isn't broke you are not trying.

08-14-2002, 03:27 PM	#4
RPM427 Registered Member Join Date: Aug 2001 Location: Huntington NY Posts: 573	Those coolant lines are there to cool the exhaust gas before it enters the engine. if you still have an operating EGR valve, youmight want to reconnect them. __________________ -1993 Mustang, 900rwhp 03-04 cobra based 4v swap, full Griggs setup, project underway -1994 Ranger w/ 427cid windsor (daily beater) check it out!

08-14-2002, 03:30 PM	#5
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	From what i understand the coolant through the spacer is designed for 2 different things. 1. To warm up the engine faster in cold operation 2. to cool down the incoming air and manifold when hot because the EGR valve is mounted on the other side, which exhaust gas is ALOT hotter than coolant. The coolant takes away the heat from the throttle body and circulates it back through the system. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

08-14-2002, 03:39 PM	#6
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	Its near the back, passenger side of the lower intake. Not hard to find. Your mechanic eithier removed the nipple and installed a plug, or plugged the nipple with something. If you look down and back from where the coolant line comes out the back of the spacer, you ll be in the right area. "Is is located near the Gas reserculaton hole"? No, not at all. Its on the lower manifold, not the upper. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

08-14-2002, 06:24 PM	#7
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	Thankx guys I appreciate your replies. For some reason I can't find the nipple. I will check it out to night with better light. 84LX89GT is probably correct. That is what I have heard about the spacer. I have really cold winters so, it is especially important. __________________ If it isn't broke you are not trying.

08-14-2002, 11:29 PM	#9
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	ok What about warming the air in the spacer when the temperature is -20F. __________________ If it isn't broke you are not trying.

08-15-2002, 07:50 AM	#10
RPM427 Registered Member Join Date: Aug 2001 Location: Huntington NY Posts: 573	I don't think the coolant lines are designed to heat up the upper intake. What would be the point of heating it up? Heating the combustion chamber and the cylinder heads would be important (thats why you have a thermostat) but heating the upper intake would serve no purpose other then slightly heating up the air. But the EGR valve is used for that purpose among other things. Anyone agree or disagree? __________________ -1993 Mustang, 900rwhp 03-04 cobra based 4v swap, full Griggs setup, project underway -1994 Ranger w/ 427cid windsor (daily beater) check it out!

08-15-2002, 08:45 AM	#12
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	Can't find it Is the nipple running verticle? On the passenger side of the lower manifold I see a regular bolt that is in the torquing sequence. Then I see a larger bolt with a weld on it. I wonder if this nipple is threaded. These guys could of unscrewed it and ground off the nipple and then put a couple of welds to seal the hole. __________________ If it isn't broke you are not trying.

08-15-2002, 09:33 AM	#13
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	Yeah, that sounds like you found it. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

08-15-2002, 07:37 PM	#14
Lethal5Oh Registered Member Join Date: Jun 2002 Location: Portage Posts: 239	Mach 1, you said cold air is your freind. Thats if your trying to build horse power, but Ford was thinking gas mileage and emission and smooth running. __________________ '95 GT convert. K&N, C&L mass air meter, Performance distributors sreamin demon coil, dyna mod, live wires, king cobra clutch, flowmaster american thunder exhaust, UPR billet adjustable shift handle, Crane Cams Fireball HI-6 box,underdrive pullies, 255lph fuel pump, UPr short throw shifter, caster camber plates, 03 cobra lower A arms, bullit suspension, cobra front brakes

08-15-2002, 09:26 PM	#15
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	hook them back up, as it was said before, the EGR gasses are by far hotter than the coolant going through those lines. I dont have mine hooked up, because my Intake doesnt have provisions for EGR so my valve isnt hooked up. If your mechanic knew what he was doing in the first place, then he wouldnt have removed those lines. So now, as it sits, your intake is hotter than it was when the lines were hooked up. __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

08-15-2002, 11:17 PM	#17
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	Need the nipple for the lower intake. Does any one out there what to send me the threaded nipple for a reasonable price? It would be much appreciated. Thankx. __________________ If it isn't broke you are not trying.

08-16-2002, 08:41 AM	#18
302 LX Eric or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio Posts: 2,142	Your best bet would be to pop into your local Ford dealer and purchase the part there. Or, just run down to NAPA, etc. and buy it from them. E __________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60'

08-16-2002, 09:09 AM	#19
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	Threaded nipple. I need to buy an treaded nipple on the passenger side of a stock 5.0 lower manifold. This nipple holds collant that has already gone through the egr spacer. If some one would sell this to me for a reasonable price I would very much appreciate it. __________________ If it isn't broke you are not trying.

08-16-2002, 11:15 AM	#20
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	Your local Ford dealer would probably sell it to you at a reasonable price. It cant be more than a few dollars. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

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