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#1273859 - 09/09/07 12:58 PM Heater Hose-to-Intake Manifold Nipple
TheShadow Offline
Over the Hill

Registered: 05/01/07
Posts: 1366
Loc: SoCal High Desert
Hello all. I have a problem with the intake manifold heater hose connection on a '97 CVPI. There is a metal pipe with very fine threads that screws into the plastic pipe on the back corner of the manifold, also very fine threads. That plastic pipe/post is cracked, and the heater hose with nipple still attached blew out yesterday. I thought I could get by for a week or so with a hose clamp around the cracked pipe/post and reseal and rethread the metal nipple back in, until I can afford a manifold.

BUT...here's the weird part: the metal nipple is too small for the plastic! The crack has been tightened so it almost disappears, but there's a LOT of slop in the fit. The threads won't even think about engaging, even when the nipple is bottomed out in the pipe/post. I haven't measured the slop, but I would estimate at least 1/16".

I'm at a loss...did the former owner change something? Are all your manifold to nipple connections set up the same? Anyone run into this before? Could a major amount of RTV or Teflon tape hold the seal for a while (with or without pressure in the cooling system)? Does a new manifold come with the heater hose nipple already installed?

The intake manifold is all plastic, BTW.

Thanks in advance for your responses and HELP!!!!!
_________________________
'95 P71, 5xx,xxx miles, Rebuilt tranny, 2.73. Lives as a cab, and will die as a cab. (Died-FrontEnder)
'96 P71, 640,xxx on original drivetrain. (Now parts car - T-bone & roll)(You should see the roof - A,B & C-pillars chopped on driver side)
New to list: '96 MGM (Nice! @ 35x,xxx), '97 CV P71, '98 CV P71, '00 CV P71, 01 P71 (2 of 'em) '03 CV P71 (Nice so far) (All Ford Zinc Yellow w/Black decals & trim) And the list is growing...........
Taxicab mechanic: I HATE DRIVERS!

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#1273917 - 09/09/07 02:51 PM Re: Heater Hose-to-Intake Manifold Nipple [Re: TheShadow]
LSpann601 Offline
Over the Hill

Registered: 10/21/05
Posts: 1094
Loc: Jackson, Mississippi
yep its comes pressed in...you might as well get a new intake I had the same exact problem with mine
_________________________
1997 Crown Victoria P71
Mods: Bench Seats | 02 Crown Victoria P71 Steering Gear | Dorman NPI Intake Manifold | PI Coolant Tube | Mechanical Cooling Fan | 98-00 CV Electric High Speed Fan Swap | Flowmaster 40s | 97 Lincoln Town Car Transmission | Suspension Fully Rebuilt
2006 Crown Victoria P71 OLD MS Highway Patrol Car (Wrecked)
2003 Mercury Grand Marquis GS (Wifes Car)
2008 Crown Victoria Police Interceptor OLD NPS Park Ranger Car | Variable Ratio Rack and Pinion Steering (Without Variable Assist Steering) | 17" Wheel Covers | Driver Power Seat Swap | AIRBAG Seats | Vinyl Floor Cover
1981 Chevy Monte Carlo 305ci/700r4 (sbc 408 build in progess)

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#1274231 - 09/10/07 12:50 AM Re: Heater Hose-to-Intake Manifold Nipple [Re: LSpann601]
TheShadow Offline
Over the Hill

Registered: 05/01/07
Posts: 1366
Loc: SoCal High Desert
Thanks, LSpann. I was hoping you wouldn't say that...

BTW, can you get me the name and address of the responsible design engineer - I'd (and many others, I'm sure) like to pay him a visit....
_________________________
'95 P71, 5xx,xxx miles, Rebuilt tranny, 2.73. Lives as a cab, and will die as a cab. (Died-FrontEnder)
'96 P71, 640,xxx on original drivetrain. (Now parts car - T-bone & roll)(You should see the roof - A,B & C-pillars chopped on driver side)
New to list: '96 MGM (Nice! @ 35x,xxx), '97 CV P71, '98 CV P71, '00 CV P71, 01 P71 (2 of 'em) '03 CV P71 (Nice so far) (All Ford Zinc Yellow w/Black decals & trim) And the list is growing...........
Taxicab mechanic: I HATE DRIVERS!

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