PotM GrandMarq.NET - Panther Headquarters Forum Index PotM
GMN Chat Room GMN's STORE!! GMN's Gallery Please!!
Results 1 to 13 of 13

Thread: 1988 Mercury Grand Marquis Smog Pump Delete

  1. #1
    Member 1988mgm's Avatar
    Join Date
    May 2012
    Location
    Monticello, Arkansas
    Posts
    100

    Default 1988 Mercury Grand Marquis Smog Pump Delete

    Ok so I've taken my smog pump off along with all the vacuum solenoids and the rubber hosing out of my 88 grand marquis I left the two check valves on and I was needing you all advise on what to do from here I have an exhaust leak where the crossover pipe is connected to the exhaust pipe so I can't just leave it like that. Any help would be appreciated

  2. #2
    I'm an air-conditioned gypsy gadget73's Avatar
    Join Date
    Jan 2005
    Posts
    31,380

    Default

    down at the converters? cut the rotted pipe off and jam a plug in. I've used pipe plugs and sealed them in with some generic equivalent to that Mighty Putty stuff that whathisface used to sell on tv.

    86 Lincoln Town Car (Galactica).
    Drivetrain: 5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    Suspension: Bridgestone Protenza G019 225/60/16 on LSC turbines, 1 3/16" wagon front bar, 1" PI rear bar, cargo coils, KYB GR-2 shocks, big front brakes, ES poly front suspension bushings, 00 CVPI steering box, ES poly body mounts, rear disc brakes

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body, 246k and counting

  3. #3
    Member 1988mgm's Avatar
    Join Date
    May 2012
    Location
    Monticello, Arkansas
    Posts
    100

    Default

    I was also needing to know how to plug the Holes in the back of the heads. Basically I want to do away with the check valves, the crossover pipe on the back of the heads, the converter pipes, and any other stuff the smog pump was connected to.

  4. #4
    Beater gonna beat sly's Avatar
    Join Date
    Mar 2010
    Location
    Lewisville, TX
    Posts
    16,606

    Default

    I used bolts that were the size of the pipes (still leaves an ever so slight leak unless you use some goop)... just screwed them into the pipe (ones that just barely fit with a little effort). Bolts with some JB weld steel would work too. Just clean the surfaces first (will need to allow cure time).

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 88 MGM, 93 Vic, 2000 Crown Vic
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  5. #5
    Beater gonna beat sly's Avatar
    Join Date
    Mar 2010
    Location
    Lewisville, TX
    Posts
    16,606

    Default

    I found this pic over on Corral.net

    Click image for larger version. 

Name:	engineout.jpg 
Views:	160 
Size:	69.8 KB 
ID:	33096

    This shows the pipe ends cut off the pipe and flipped over with some goop on them to close off the ports on the back of the heads.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 88 MGM, 93 Vic, 2000 Crown Vic
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  6. #6
    Beater gonna beat sly's Avatar
    Join Date
    Mar 2010
    Location
    Lewisville, TX
    Posts
    16,606

    Default

    another good thread worth of pictures and answers over there: Corral.net

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 88 MGM, 93 Vic, 2000 Crown Vic
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  7. #7
    Panthers Suck! pantera77's Avatar
    Join Date
    Oct 2008
    Location
    Buffalo, NY
    Posts
    4,650

    Default

    Quote Originally Posted by slymer View Post
    This shows the pipe ends cut off the pipe and flipped over with some goop on them to close off the ports on the back of the heads.
    It looks like the pipe was pinched together and welded shut in that pic. That's how the ones om my 91 are and they've been fine forever.

  8. #8
    t65neon5
    Guest

    Default

    when i put the 85 truck h.o. 351 in my 91 i used small freezeplgs that fit the holes and J.B. weld to seal them.....waited for it to dry completely...then filed them smooth prior to painting the heads

  9. #9
    I'm an air-conditioned gypsy gadget73's Avatar
    Join Date
    Jan 2005
    Posts
    31,380

    Default

    Chop the pipe apart and flip the ends over, then bolt it back up. It should seal fine with the regular gasket thats back there as long as the back surface of the pipe is cleaned up some to make a suitable gasket sealing surface. Basically clean, flat, no big gouges or burrs.

    86 Lincoln Town Car (Galactica).
    Drivetrain: 5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    Suspension: Bridgestone Protenza G019 225/60/16 on LSC turbines, 1 3/16" wagon front bar, 1" PI rear bar, cargo coils, KYB GR-2 shocks, big front brakes, ES poly front suspension bushings, 00 CVPI steering box, ES poly body mounts, rear disc brakes

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body, 246k and counting

  10. #10
    I post a lot... turbo2256b's Avatar
    Join Date
    Apr 2006
    Location
    MI
    Posts
    3,445

    Default

    should be able to use short as possible 5/8 coarse bolts in the back of the heads.
    Scars are tatoos of the fearless

  11. #11
    Member 1988mgm's Avatar
    Join Date
    May 2012
    Location
    Monticello, Arkansas
    Posts
    100

    Default

    Thanks! I haven't got started and probably won't be able to park the car for a while to get it done so just getting suggestions for now. Thanks for the many replies.

  12. #12
    fuck no, not today, thank you kindly 1990LTD's Avatar
    Join Date
    Jun 2009
    Location
    Nova Scotia, Canada
    Posts
    8,254

    Default

    We should put together a sticky thread about the smog and AC removal...



    - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

    - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

    - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

  13. #13
    GMN Regular porschpow's Avatar
    Join Date
    Dec 2009
    Location
    Hamilton, NJ/Flanders, NJ
    Posts
    1,434

    Default

    i DEF AGREE.

    Is the smog pump removal, really worth doing?

    The only reason I was even considering doing it is to do away with that pump that is making these crazy squeeky sounds

    It would be awesome to have a step by step to do it.
    "To Find yourself, you must first lose yourself"

    -1973 Volkswagen Bus Westy
    -1986 Honda Magna 700cc
    -1989 Lincoln Town car Signature Series
    -2011 Subaru Outback

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
GMN Approved Links!


www.rockauto.com www.adtr.net