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Old 10-28-2007, 07:48 AM
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96_4wdr 96_4wdr is offline
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Removal of heater hose steel nipple from intake manifold 4L?

twisted and turned on mine yesterday. made about 10 revolutions but will not come out.
is this a pressed in steel nipple that feeds out of 4L intake manifold coolant thermostat area?
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Old 10-28-2007, 01:53 PM
xlt4wd90 xlt4wd90 is offline
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Gee that sounds almost like the threads on the fitting has stripped. Did you try any pulling action while turning it?
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Old 10-31-2007, 05:41 AM
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no threads. pressed in steel tube into hole in aluminum lower intake manifold into coolant jacket.

had to split out the old tube with chisel and tap hole with 3/8" NPT tap, replaced with 3/8" NPT brass nipple. put in with teflon tape

not a Furd better idea. pressed in steel nipples in coolant connections subject to stress and shaking.
sure made an mess of my nice pretty clean and painted Ford Blue intake manifold after the intake gasket replacement.
suggestion, remove the steel nipple and replace with brass threaded nipple anytime manifold is off for other work. so much easier

my ex-pretty manifold now looks like an industrial jack hammer has been used on that corner
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Old 10-31-2007, 10:13 AM
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Cliff:

Paint it bright red. There is nothing a good coat of paint won't cover up
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Old 11-01-2007, 10:22 AM
bozzzz94 bozzzz94 is offline
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Talking

Copper (Tung)

Ahhh so I thought you were a Ford guy

Aero Aero Tauras

REDDDDDDddddddddddddddd????????

Are you have a chevy guy relapse????????

Sorry Charlie----------we bleed BBBBBLLLLLLUUUUUUEEEEEE !!!!!!!!!
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="5ive" Aerostar's P-R-I-C-E-L-E-S-S signed B O Z
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Old 11-01-2007, 04:03 PM
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Were you referring to the steel nipple over the thermostat that the upper radiator hose connects to?

On my 3.0 Aero its just bolted on with two bolts with a gasket between the mating surfaces.
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Old 11-01-2007, 04:24 PM
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heater hose nipple out the top right front of 4L lower intake manifold
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Old 11-01-2007, 07:50 PM
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Oh you mean this guy? (Circled In Red)

One of those other fittings crapped out on me a few years back a hole rusted through the Ford dealer looked at me like I was crazy when I tried to find another one.

None of their diagrams showed it. You can see my brass "Home Depot Special Fix" in This Pic . I used O2 sensor safe High Temp RTV to seal the threads.

The dash temperature sensor plugs into the top and the hose out the bottom tees off from the lower radiator hose.

Click the image to open in full size.

On a related note here is the original part that the brass fitting replaced just curious if anyone else has this fitting on their 3.0 mines a 96?

Click the image to open in full size.

Last edited by krankshaft; 11-01-2007 at 08:03 PM.
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Old 11-01-2007, 08:11 PM
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nothing like that on a 4L. just a straight steel tube pounded 3 inches into a hole in the intake manifold for the heater hose.
it's not listed in ford parts either.
they made millions of these morfidite connections

steel tube pounded into a cast aluminum manifold that is heated and under water pressure, what a dumb engineer cheap trick
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Old 11-01-2007, 08:17 PM
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Krankshaft:

I did a similar thing with my '93 3.0L.

However, Cliff is right. The 4.0L is a real mess with a press-fit nipple.
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Old 11-01-2007, 08:21 PM
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They probably sweated it in at about 300* while stress relieving the casting, before final machining?

NPT is a better way to go in any case. Taper pipe threads....they rarely leak once taped in.
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Old 11-02-2007, 01:51 AM
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Just pressed in?

Its suprising what stupid things manufacturers will do to save a buck.

Yet another brilliant Ford innovation probably from the same guy who came up with the headlight switch.

Last edited by krankshaft; 11-02-2007 at 01:57 AM.
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Old 11-02-2007, 10:30 AM
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Quote:
Originally Posted by bozzzz94
Copper (Tung)

Ahhh so I thought you were a Ford guy

Aero Aero Tauras

REDDDDDDddddddddddddddd????????

Are you have a chevy guy relapse????????

Sorry Charlie----------we bleed BBBBBLLLLLLUUUUUUEEEEEE !!!!!!!!!
You have a real addiction problem there Bozzzzzz. 5 Aerostars - one driver?

Oh yes, I used to drive a Jeep with a 2.8L V6 Chevy engine. I got rid of it because I couldn't stand the unfixable oil leak on my driveway

Krankshaft: When I had my intake manifold out of the 4.0L, I thought about replacing that nipple the way Cliff did, but then I chickened out. However, I did replace the nipple on the 3.0L with a brass nipple from Home Depot just like you did.
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Old 11-02-2007, 10:30 AM
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