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1988 GT 5.0 Mystery part

  • Thread starter Thread starter rpatrick77
  • Start date Start date Dec 20, 2022
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rpatrick77

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Dec 20, 2022
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Dec 20, 2022
#1
  • Dec 20, 2022
  • #1
I'm trying to find out what's the name of this part running behind the engine and connected to this hose going to the water pump looks like.
 

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rpatrick77

New Member
Dec 20, 2022
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NC
Dec 20, 2022
#2
  • Dec 20, 2022
  • #2
What's this part called????
 

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Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,260
17,944
224
Massachusetts
Dec 20, 2022
#3
  • Dec 20, 2022
  • #3
Thermactor crossover tube.

The hose runs from the air pump located below the alternator to that pipe, which pumps air into the heads with the goal of helping the pre-cats acheive max efficiency during vehicle warmup. When the car is warm, the air is routed own to the H-pipe to feed those cats.

If you have no converters on the car, you can pull this all off and block the ports on the heads.

This is the part

79-93 Mustang thermactor head tube pipe w/ valve | eBay

Find many great new & used options and get the best deals for 79-93 Mustang thermactor head tube pipe w/ valve at the best online prices at eBay! Free shipping for many products!
www.ebay.com
 
R

rpatrick77

New Member
Dec 20, 2022
3
0
1
NC
Dec 23, 2022
#4
  • Dec 23, 2022
  • #4
Mustang5L5 said:
Thermactor crossover tube.

The hose runs from the air pump located below the alternator to that pipe, which pumps air into the heads with the goal of helping the pre-cats acheive max efficiency during vehicle warmup. When the car is warm, the air is routed own to the H-pipe to feed those cats.

If you have no converters on the car, you can pull this all off and block the ports on the heads.

This is the part

79-93 Mustang thermactor head tube pipe w/ valve | eBay

Find many great new & used options and get the best deals for 79-93 Mustang thermactor head tube pipe w/ valve at the best online prices at eBay! Free shipping for many products!
www.ebay.com
Click to expand...
Bingo. YES You got it. I lost power and I hear it hissing.. Thanks
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,029
1,621
194
NJ
Dec 23, 2022
#5
  • Dec 23, 2022
  • #5
They make allen key plugs if you pull it off, i just can't remember how easy it is do with the heads on the car.
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,899
4,022
183
Claremore, OK
Dec 23, 2022
#6
  • Dec 23, 2022
  • #6
You will need two.

https://www.oreillyauto.com/detail/c/pioneer-inc/pioneer-inc-head-insert/pio0/pf580100/v/a/150953/automotive-car-2020-mercedes-benz-e350?q=PF-580-4&pos=0
 
P

Pinellas50

Active Member
Aug 5, 2020
73
29
28
Tampa Bay, FL
Dec 24, 2022
#7
  • Dec 24, 2022
  • #7
2000xp8 said:
They make allen key plugs if you pull it off, i just can't remember how easy it is do with the heads on the car.
Click to expand...
Far from easy due to all the carbon build up on the threads. It's far easier to use the block off plates that LMR sells.
 
Reactions: Gs1987GT and Mustang5L5

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,933
10,575
203
polk county florida
Dec 25, 2022
#8
  • Dec 25, 2022
  • #8
Back yard hack if you're not going to replace it, cut the tube an inch or so from the end that bolts to the head, smash it shut, fold it over then dig some of the crud out of the inside of the flat side, clean it with some brake cleaner and fill it with JBweld, let it sit a few hours, clean the gasket surfaces, new gasket or some red gasket maker, bolt it on and let it set over night.
 

Kid wita 5oh

I'm definitely not in the original hole
Founding Member
Nov 5, 2000
1,406
149
93
Saugus, MA
Dec 27, 2022
#9
  • Dec 27, 2022
  • #9
Even easier if you're not going to replace.. cut the ends off at the heads, flip them over and bolt back on with some rtv
 
Reactions: General karthief

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,115
21,288
234
Box behind Walmart
Dec 27, 2022
#10
  • Dec 27, 2022
  • #10
If we're going Hillbilly, just thread some spark plugs in the holes and break the tops off.
 

Kid wita 5oh

I'm definitely not in the original hole
Founding Member
Nov 5, 2000
1,406
149
93
Saugus, MA
Dec 28, 2022
#11
  • Dec 28, 2022
  • #11
If it works, it works
 

Gs1987GT

Active Member
Sep 25, 2019
484
170
53
MidAtlantic
Jan 1, 2023
#12
  • Jan 1, 2023
  • #12
I used the block off plates from lmr when I removed my smog pump. I sealed them with copper rtv and all has been well since. They work well and are inexpensive. The ports on the back of my heads were carboned shut anyway.
 
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