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Progress Thread Hot Rod Lincoln > 1999 Mustang GT

  • Thread starter Thread starter old farmer
  • Start date Start date May 9, 2019
O

old farmer

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#1
  • May 9, 2019
  • #1
4.6 Lincoln town car engine completely redone all needed parts changed new radiator, water pump, starter mustang intakes, wiring harness fuse box replaced. Have taken fly wheel from F 150, cause it bolts up correctiy and teeth match up. Clutch seems a little tight. GT has 5 speed manual transmission. Motor turns by hand but bolted up won't turn over. A 35 year veteran mechanic is doing this and we are scratching our heads. Any advice?
 

General karthief

wonder how much it would cost to ship you a pair
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#2
  • May 9, 2019
  • #2
I'm not sure but I think I read where some 4.6 engines did not have the correct depth for the pilot bearing and causes everything to lock up.you may need to use google to check.
 
O

old farmer

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  • May 9, 2019
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General karthief said:
I'm not sure but I think I read where some 4.6 engines did not have the correct depth for the pilot bearing and causes everything to lock up.you may need to use google to check.
Click to expand...
General karthief said:
I'm not sure but I think I read where some 4.6 engines did not have the correct depth for the pilot bearing and causes everything to lock up.you may need to use google to check.
Click to expand...

Ok thank you. The flly wheel out of the F 150 is about 1/64 " thicker, maybe thinner than that. Wondering if it could be turned at a shop, would that help? The racing fly wheel from the GT didn't have matching bolt holes for the Lincoln 4.6 liter
 
O

old farmer

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#4
  • May 9, 2019
  • #4
old farmer said:
Ok thank you. The flly wheel out of the F 150 is about 1/64 " thicker, maybe thinner than that. Wondering if it could be turned at a shop, would that help? The racing fly wheel from the GT didn't have matching bolt holes for the Lincoln 4.6 liter
Click to expand...

Also, using as few a words as possible, what would I google to ask my question?
 

General karthief

wonder how much it would cost to ship you a pair
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#5
  • May 9, 2019
  • #5
I am searching the interwebs for some info, stand by.
Here is everything you need to know about the 4.6 mod engine.
https://fordcobraengines.com/ford-modular-motor-differences/
I am still looking for info on the trans/engine compatibility problem.
 
Last edited: May 9, 2019
O

old farmer

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Thank you General! Quite helpful!! I'll be watching. Thanks again. I believe you are on the right track with the tranny engine compatability.
 

General karthief

wonder how much it would cost to ship you a pair
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#7
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What trans are you using
 
O

old farmer

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5 speed standard on floor, that was on the 1999 GT with a 4.6 liter 281 cu in. If that isn't enough info, I'll ask the mechanic in the morning. Sorry it took a few minutes to get back to you.
 
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jakebrake1

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#9
  • May 10, 2019
  • #9
90 % sure the linc uses a proprietary computer. that was their Achilles.

if you've got it hooked to a ford, they don't speak same language.
 
O

old farmer

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#10
  • May 10, 2019
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Thank you. So any suggestions? Will a lincoln trans work? I've bought the motor and got it in the car. or changing to a Lincoln computer?
 
Last edited: May 10, 2019

General karthief

wonder how much it would cost to ship you a pair
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#11
  • May 10, 2019
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Lets be clear here: engine and trans bolted together, engine will not move. Right? Like it is frozen
 
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old farmer

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Yes sir. That's correct.
 
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old farmer

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General karthief that is correct.
 

General karthief

wonder how much it would cost to ship you a pair
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#14
  • May 10, 2019
  • #14
Your going to look at incompatibility between the trans, bell housing and/or flywheel and the crank. We need to know what bell housing, trans type and if this is gonna work with the flywheel.
 
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old farmer

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Ok As I said the Ford F150 fly wheel matches to the bolts and the teeth. It is a fraction thicker than the racing fly wheel on the Mustang GT 4.6, but really only a hairs difference, which may be just enough too much. When my mechanic gets in, I will ask and let you know. Thanks for all your help. The mustang fly wheel didn't match the bolt up on the Lincoln motor. I'll get back to you.
 

wmburns

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Aug 14, 2009
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May 11, 2019
#16
  • May 11, 2019
  • #16
What model year did the donor Lincoln motor come from?

Will the drive shaft turn if the transmission is put into neutral?

Will the drive shaft turn if the clutch is depressed?

What have you done to rule out something like a problem in the transmission such as two gears engaged at the same time?

The reason that I ask is I thought that all modular flywheels would interchange as long as the number of bolt holes are the same. This has me wondering if there's something else causing your problem.
 
Last edited: May 11, 2019
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old farmer

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  • May 11, 2019
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2000 Lincoln town car. 1999 Mustang GT. wmburns I am trying to reach my mechanic now and will get back to you, as soon as he calls me. I have texted your questions to him. But he could be working at his other job today. Get back to you soon asap
 
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old farmer

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#18
  • May 11, 2019
  • #18
General karthief said:
Your going to look at incompatibility between the trans, bell housing and/or flywheel and the crank. We need to know what bell housing, trans type and if this is gonna work with the flywheel.
Click to expand...
Still waiting on mechanic to call. He may be working today. I have texted your questions to him. Thanks
 

wmburns

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May 11, 2019
#19
  • May 11, 2019
  • #19
old farmer said:
2000 Lincoln town car. 1999 Mustang GT.
Click to expand...
The Ford Panther line (Town Car, Grand Marquis, and Crown Vic) did not get a PI motor until 2001+. Therefore if the donor has come from a 2000 model year then it's a non-PI motor. This means that a non-PI motor has been mated to a PCM that is expecting to control a PI motor. While I'm not 100% certain, IMO if asked to tank an educated guess, the motor will run but not make great power. The fuel curves will be wrong.

The PI verses non-PI is not the reason why the motor will not bar over.

Which fuel injectors were used? This could also be an issue because the Lincoln uses very different sized fuel injectors (the Mustang GT has larger injectors).

If this were my project I would be very concerned about the quality of the pre project advice that you got. IMO you will not be happy with the result after force fitting a non-PI motor into a car designed for a PI.

Note, the 2000 Mustang GT that I regularly drive (and have for 7 years now) has a motor from a 2003 Grand Marquis. So I can say from first hand experience that it is possible and it does work to use a long block from a PI Panther in a 1999+ Mustang GT.

Note2, it not possible to swap a Lincoln PCM into a Mustang without re-wiring the entire car. The electrical is vastly different between the two cars. This motor swap only works if the new motor looks the same electrically as the original. That's why is necessary to swap the motor's wiring harness to maintain the original.
 
Last edited: May 11, 2019
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old farmer

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#20
  • May 11, 2019
  • #20
wmburns said:
The Ford Panther line (Town Car, Grand Marquis, and Crown Vic) did not get a PI motor until 2001+. Therefore if the donor has come from a 2000 model year then it's a non-PI motor. This means that a non-PI motor has been mated to a PCM that is expecting to control a PI motor. While I'm not 100% certain, IMO if asked to tank an educated guess, the motor will run but not make great power. The fuel curves will be wrong.

The PI verses non-PI is not the reason why the motor will not bar over.

Which fuel injectors were used? This could also be an issue because the Lincoln uses very different sized fuel injectors (the Mustang GT has larger injectors).

If this were my project I would be very concerned about the quality of the pre project advice that you got. IMO you will not be happy with the result after force fitting a non-PI motor into a car designed for a PI.

Note, the 2000 Mustang GT that I regularly drive (and have for 7 years now) has a motor from a 2003 Grand Marquis. So I can say from first hand experience that it is possible and it does work to use a long block from a PI Panther in a 1999+ Mustang GT.

Note2, it not possible to swap a Lincoln PCM into a Mustang without re-wiring the entire car. The electrical is vastly different between the two cars. This motor swap only works if the new motor looks the same electrically as the original. That's why is necessary to swap the motor's wiring harness to maintain the original.
Click to expand...
The mechanic has been talking to the salvage company and believes it is a 2001. I remember him saying that he was only using the block and heads maybe, off of the Lincoln. He is sending a pic of the VIN # of the car so we can decode it and get some answers to your questions. I'll be back!
 
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