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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
__________________ 1994 Extended Black Sport 4.0 2 wheel drive 1994 Extended Blue/gold 4.0 Eddie Bauer 4 whl-drive 1993 Extended Blue/gold 4.0 Eddie Bauer 4 whl-drive 1992 Shorty Blue 3.0 2 wheel drive +1989 Extended Red 3.0 2 wheel drive ="5ive"Aerostar'sP-R-I-C-E-L-E-S-S signed B O Z
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
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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