I yanked the whole cfi harness off my 84 with a 302 and just ran it with a mechanical pump, carb, and duraspark. You just need 12v start, 12v run, and ballast resisted run voltage for the coil. Easy peazy. You also dont need to worry about a TV throttle linkage making it even easier, since your 79 is a c4 car.
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IF you do find a VV replacement, there are two models. One for the 255/302 and one for the 351. Make sure you get the right one.
If you choose to rebuild the existing unit, get a fresh rebuild kit. DO NOT ADJUST ANY INTERNAL ADJUSTMENTS ! Just clean, replace what needs replacement . What usually went bad was the diaphragms. It is worth a try. If the internal adjustment were messed with, unless a professional did the job, it never will run again. There is also a special tool called a water gauge which is suppose to be used. I never did. Considering the age and the one year only use of many 1979 parts, I would vote with the others here to get rid of it. I hated those VVs but I got over 200k miles on the three I had.
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Rip all that out- if you want to go a step farther rip the smog stuff out and plug the back of the heads with bolts. You can just turn the module into DS-II as gadget said and the dizzy/module will work just fine. You can get a remanned 2150 off rockauto. Just make sure it has the linkage for the TV rod. I suggest trying to find a 2150 with the larger venturi size if you can (1.23 I believe, or 1.21??)
You can try to make the existing system run with a replacement- but it will not be as reliable as a 2150 and a good old DS-II system, at least not with everything aged as it has-Phil
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+1982 Ford LTD-S Police Car. Built 351w, Trickflow 11R 190 Heads, Holley Sniper EFI, RPM Intake+ Hyperspark dizzy, WR-AOD, Full exhaust headers to tails. 3.27 Trac-Lok Rear. Aluminum Police Driveshaft. Speedway Springs+Bilstein Shocks, Intermediate Brakes, HPP Steering Box.
+2003 Acura CL Type S 6-speed
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That distributor is odd though, no advance at all. EEC-III distributors didn't have one, but those ran off the crank trigger.86 Lincoln Town Car (Galactica).
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
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
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Originally posted by JeffBoudah View PostI yanked the whole cfi harness off my 84 with a 302 and just ran it with a mechanical pump, carb, and duraspark. You just need 12v start, 12v run, and ballast resisted run voltage for the coil. Easy peazy. You also dont need to worry about a TV throttle linkage making it even easier, since your 79 is a c4 car.1978 Ford LTD wagon, 351M
1979 Mercury Marquis, 351W
1987 Ford F-250 HD 4x4, 460, 4-speed, reg cab full bed
2003 Mercury Marauder, 4.6L DOHC, JLT CAI, 4.10 gears, J-mod, custom tune
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Originally posted by Brown_Muscle View PostRip all that out- if you want to go a step farther rip the smog stuff out and plug the back of the heads with bolts. You can just turn the module into DS-II as gadget said and the dizzy/module will work just fine. You can get a remanned 2150 off rockauto. Just make sure it has the linkage for the TV rod. I suggest trying to find a 2150 with the larger venturi size if you can (1.23 I believe, or 1.21??)
You can try to make the existing system run with a replacement- but it will not be as reliable as a 2150 and a good old DS-II system, at least not with everything aged as it has1978 Ford LTD wagon, 351M
1979 Mercury Marquis, 351W
1987 Ford F-250 HD 4x4, 460, 4-speed, reg cab full bed
2003 Mercury Marauder, 4.6L DOHC, JLT CAI, 4.10 gears, J-mod, custom tune
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Originally posted by Rodentkiller View PostIf you want to go the way of rebuilding the VV contact Nathen in Min he did it in his College Dorm room and got his car to run right just a suggestion.1978 Ford LTD wagon, 351M
1979 Mercury Marquis, 351W
1987 Ford F-250 HD 4x4, 460, 4-speed, reg cab full bed
2003 Mercury Marauder, 4.6L DOHC, JLT CAI, 4.10 gears, J-mod, custom tune
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Probably an FMX. The C6 was the heavy duty trans that mostly got used in trucks and behind big blocks. Me, I'd swap that for a late AOD and put in a not-stupid ratio diff. Its probably got something in the 2.26 range to try and make fuel economy without overdrive.86 Lincoln Town Car (Galactica).
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
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
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I took a look at the dipstick, and it indicates Type F fluid, which according to the manual excludes the C-6. And if it's anything like my LTD, then yeah, the C-4 was relegated to the 302. So, likely the FMX. Also doesn't look like anything different from my LTD in terms of linkages between the carb and trans, very similar throttle connections (only difference I see is how the cruise control connects, but it has the same type of connection to the throttle overall), so the 2150 should be an easy bolt-on swap without any worry about TV cables.
Sent from my VS988 using Tapatalk1978 Ford LTD wagon, 351M
1979 Mercury Marquis, 351W
1987 Ford F-250 HD 4x4, 460, 4-speed, reg cab full bed
2003 Mercury Marauder, 4.6L DOHC, JLT CAI, 4.10 gears, J-mod, custom tune
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My 1979 LTD S with the 351 had a C-4 ! I could not believe it. I thought it would have been a FMX. Nope, C-4
That car was very odd. Originally a Avis rental car out of Los Angeles. Did the airport, Disneyland and tourist trap route.Last edited by Mainemantom; 12-04-2019, 12:42 AM.
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Originally posted by gadget73 View PostProbably an FMX. The C6 was the heavy duty trans that mostly got used in trucks and behind big blocks. Me, I'd swap that for a late AOD and put in a not-stupid ratio diff. Its probably got something in the 2.26 range to try and make fuel economy without overdrive.1978 Ford LTD wagon, 351M
1979 Mercury Marquis, 351W
1987 Ford F-250 HD 4x4, 460, 4-speed, reg cab full bed
2003 Mercury Marauder, 4.6L DOHC, JLT CAI, 4.10 gears, J-mod, custom tune
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I've never been much on the C- transmissions. Slushy shifts, not enough gears, and the C6 especially is a power pig. The AOD is plenty strong if its built correctly, stock they're a bit blah.86 Lincoln Town Car (Galactica).
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
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
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Originally posted by gadget73 View PostI've never been much on the C- transmissions. Slushy shifts, not enough gears, and the C6 especially is a power pig. The AOD is plenty strong if its built correctly, stock they're a bit blah.
Sent from my VS988 using Tapatalk1978 Ford LTD wagon, 351M
1979 Mercury Marquis, 351W
1987 Ford F-250 HD 4x4, 460, 4-speed, reg cab full bed
2003 Mercury Marauder, 4.6L DOHC, JLT CAI, 4.10 gears, J-mod, custom tune
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