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Thread: My 79 Marquis

  1. #41
    Member Grand1's Avatar
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    Thats a great heads up. You saved me some four letter words.



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  2. #42
    Member Grand1's Avatar
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    VV carb is off. My vaccum lines have vaccum lines, gonna delete some.
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    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  3. #43
    P31 Pursuit Car Brown_Muscle's Avatar
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    ahhh that mess of vacuum lines brings back memories of my VV days
    -Phil



    +1982 Ford LTD-S Police Car. 351w, GT40 Heads, Edelbrock 1906 Carb, Full exhaust headers to tails. 3.27 Trac-Lok Rear. Aluminum Police Driveshaft. Speedway Springs+Bilstein Shocks, Intermediate Brakes, Baumann Shift kit.

  4. #44
    GMN Regular DerekTheGreat's Avatar
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    Wow, and I thought our '79 G10 was bad with all of its vacuum lines.
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

  5. #45
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    I filled an entire 30gal trash can with the stuff that came off my 84 wagoo when I went to a carb with a duraspark2.

  6. #46
    Beater gonna beat sly's Avatar
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    Reminds me of the vacuum line hell in that 85 Pontiac Parisienne with a chevy 305 and q-jet. 20+ feet of just 1/8 line. That was a cluster of a job. Almost every single one snapped off as soon as I touched it.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
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  7. #47
    2 decades of DDing Box Panthers, now in a Whale VicCrownVic's Avatar
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    Yeah I think I counted 8 connections to the air cleaner housing when I was there, and I swear one of the lines went from one port on the air cleaner to another port on the air cleaner.
    Vic

    ~ 1998 Mercury Grand Marquis LS - new DD
    ~ 1991 Mercury Grand Marquis LS "The Scab" - plenty of rot, summer DD
    ~ 1997 GMC Yukon - wannabe winter DD - returning summer 2020, I finally have an engine
    ~ 1991 Mercury Grand Marquis GS "The Ice Car" - Rotting Retired Winter DD
    ~ 1989 Mercury Grand Marquis GS - Rotting Retired DD
    Gone but not forgotten:
    ~ 1988 Country Squire ~ 1987 Ford Crown Vic

  8. #48
    Member Grand1's Avatar
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    Question

    Plug wires, ign coil....carb is on with new fuel filter. Also had to replace my ignition control module.Got to fire up....but wont stay running. What vac lines are necessary to keep? Fuel delivery seems to be an issue. Floods the carb and then starves it. Starting at the tank and working way front to check lines. Fuel pump is going to get changed regardless. I hate the fucking cold.



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  9. #49
    Member Grand1's Avatar
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    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  10. #50
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    ....there is a vac line coming out of choke pull off, that goes back into the carb (came that way)...does this go to the PVC?

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    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  11. #51
    GMN Regular DerekTheGreat's Avatar
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    IF it dies out, most likely you've still got vacuum leak woes or the idle is too low. Was that carb rebuilt? Have you gone through it yourself to verify the float isn't sticking open? Our '79 G10 runs pretty damn good now, especially with the choke working right. Check into that as well... I'd look at it myself if you weren't so damn far away lol.

    Edit: Well, look at the routing diagram on the fan shroud, if it has one. Get a service manual too, the fact-ree one. Just because they came that way doesn't mean it's right... I had to undo the confusion that the PO did to the van.
    Last edited by DerekTheGreat; 10-31-2020 at 10:51 AM.
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

  12. #52
    2 decades of DDing Box Panthers, now in a Whale VicCrownVic's Avatar
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    With the original carb it would only stay running with the idle way up. Sticky or junk float or sticky needles (I know next to nothing about carbs) crossed my mind. A rebuild wouldn't be bad for the "new" carb.

    Its only like a 70 mile drive. Catch a ride out there with me. Leaving early will make the most of the day. Although spring will probably be the next time I make it out there since we're running out of good weather.
    Vic

    ~ 1998 Mercury Grand Marquis LS - new DD
    ~ 1991 Mercury Grand Marquis LS "The Scab" - plenty of rot, summer DD
    ~ 1997 GMC Yukon - wannabe winter DD - returning summer 2020, I finally have an engine
    ~ 1991 Mercury Grand Marquis GS "The Ice Car" - Rotting Retired Winter DD
    ~ 1989 Mercury Grand Marquis GS - Rotting Retired DD
    Gone but not forgotten:
    ~ 1988 Country Squire ~ 1987 Ford Crown Vic

  13. #53
    Member Grand1's Avatar
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    She is alive!
    No stalling in any gear although idle sounds fast (not as fast when we worked on it Vic). Changed out the fuel pump due to erratic readings on vac guage...perfect now. Def comes down to a good tune on the carb. Derek, I think I can take the air horn out while running(?) to check float level. Fuel tank is kinda iffy so next spring. Needs brakes as it moaned and hissed while pumping them. Glad I can move her to a fully covered outdoor storage ala Harbor Frieghts portable garage.



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  14. #54
    GMN Regular DerekTheGreat's Avatar
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    Quote Originally Posted by VicCrownVic View Post
    With the original carb it would only stay running with the idle way up. Sticky or junk float or sticky needles (I know next to nothing about carbs) crossed my mind. A rebuild wouldn't be bad for the "new" carb.

    Its only like a 70 mile drive. Catch a ride out there with me. Leaving early will make the most of the day. Although spring will probably be the next time I make it out there since we're running out of good weather.
    The carb I have the most experience with is a Holley. With that guy, if the float stuck it would flood out when trying to idle- you'd see fuel dumping straight out the boosters. Damn ethanol gas.

    Sounds like Mark has vacuum woes, we'll figure it out. That's the reason why I didn't even try to fire our van until I redid all that crap.

    Word. If Mark has a building with heat, I'm all for going up there sometime before the spring. If not, spring it is...

    Mark,
    Doubt you can take the air horn or top part of the carb off while it's running. Something tells me that's got the needle & seat attached to it- so without that while running, it's just going to dump fuel everywhere...
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

  15. #55
    all the CFI are belong to me
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    If you think you're putting a fuel tank in this, start shopping for one now. On RockAuto, there used to be maybe 3 different brands offering the carb tanks (no second hole for EFI fuel pump hanger), but now there is only one, and it's the most expensive one of the lot that used to exist (Dorman).

    Spectra Premium F3
    Liland Global IF3
    Ford E4AZ9002C
    Dorman 576136
    There was definitely also one sold as Platinum Pro brand, but I can't find what its number was.

    Some other retailers do still list some of these, so there should be supply somewhere out there, but maybe not for much longer. I keep finding things that used to be very easy to get that are getting harder to find for our cars.

    I would guess the carb tanks are probably out of production now. You can use an EFI tank but would need to find a way to plug the hole for the fuel pump.
    Last edited by kishy; 11-02-2020 at 12:16 AM.

    83 GM 2dr POTM 10/2019 | 84 TC POTM 1/2017 & 4/2019 | 85 CS | 85 Ranger +trlr | 86 GM | 91 GM POTM 12/2017 | Junkyards
    Gone: 97 CV | 83 TC

  16. #56
    Member Grand1's Avatar
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    Thanks kish, interestingly enough the Liland Global IF3 tank appeared on Rock Auto and I nabbed it for $90.



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

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