1949 F4 V8 to Mercedes diesel build thread - Ford Truck Enthusiasts Forums

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1949 F4 V8 to Mercedes diesel build thread

  #1  
Old 08-04-2014, 07:54 PM
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1949 F4 V8 to Mercedes diesel build thread

I've been lurking here for a while so, I thought I would join in. I am a self employed Machine Shop owner/operator in north central Arkansas. I have been working on a '49 F4 build for a while to eventually use as my shop truck. My truck was a grain truck from Kansas with about 64000 miles on the odometer. The flathead v8 was seized from water in one cylinder. My original plan was to build a Mercury flathead to replace it but, I've changed course. I installed a '84 Mercedes 300 turbo diesel in its place. I have it mated to the original 4-speed. I've also installed a 3-speed brownie for the overdrive. I hope to get it on the road sometime this winter.
Mark
 

Last edited by fabmandelux; 11-08-2014 at 03:30 PM. Reason: OP requested
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Old 08-04-2014, 08:11 PM
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Let me be the first to welcome you to the forum. Glad to see another F4 being put back on the road. That Mercedes diesel and overdrive transmission should make a nice road friendly package.
Edit: And of course, you know about the widow makers.
 
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Old 08-04-2014, 08:17 PM
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How is that Mercedes diesel for power? Which diesel is it? Welcome to the forums.

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Old 08-04-2014, 08:20 PM
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Thanks for the welcome. I did buy a set of 19.5" wheels from a local salvage yard. I did have some pre '48 20" split rims I could have used but, I wanted to run radial tires.
Mark
 
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Old 08-04-2014, 08:26 PM
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Add my welcome. Glad to have you, and glad to have another big model saved. Stu
 
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Old 08-04-2014, 08:28 PM
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Brad, The engine I'm using is a 3.0 liter 5 cylinder turbo diesel. If I remember correctly it has 125HP and about 225ft lbs of torque. It is real similar to the '53 mercury v8 for power but at a higher rpm. I hope it will run good in the truck, it ran real strong in the car I took it out of. The Mercedes car weighs about as much as the truck.
Thanks for the welcome, Mark
 
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Old 08-04-2014, 08:35 PM
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Welcome! I admire your mechanical skills. Good luck with the build.
 
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Old 08-04-2014, 08:41 PM
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Welcome! Can you post pictures? I'd like to see your aux box installation. Which transmission do you have (Spicer, Watson, other...)? I'm curious about your five cylinder diesel installation too.
 
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Old 08-04-2014, 08:46 PM
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Welcome and I too am glad to hear of another F4 being saved and put to good use. As has been already said, we really like pictures!
 
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Old 08-04-2014, 09:00 PM
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Welcome to FTE. The larger trucks have a great appeal. Those of you that restore them have a lot of respect in my book.

mechmagcn is also from Arkansas and he has a Mercedes diesel in his truck and took it all over the country. His is a little F100 though.
https://www.ford-trucks.com/forums/1151782-how-far.html

Pictures, we love pictures!
 
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Old 08-04-2014, 09:29 PM
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Welcome to FTE from California!

We really want to see some pics of your diesel / brownie / original 4 speed.

Is that a crash box tranny or a synchro? Really interested to see the mating of the diesel to that tranny.

I see lots of F4 owners have already said hello.
 
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Old 08-04-2014, 11:58 PM
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Welcome to the best forum in the world for these old trucks! I'm in northeast Arkansas, glad to see another Arkansan on here.
 
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Old 08-05-2014, 12:10 PM
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Subscribing in hopes to see some pic's. That sounds a lot like the engine Jeff used in his F1.
 
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Old 08-05-2014, 12:53 PM
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Thank you for all the replies and hearty welcomes. I will try to post a few photos.

This is the engine adapted to the truck 4-speed. I used a stamped steel bellhousing for an H flathead 6 so I could cut and modify it. I machined an adapter for the crankshaft to use a 460 neutral balance flywheel. The starter is an FE series starter. I rotated the bellhousing slightly to raise the starter to the Mercedes starter position. The pan is too wide for it to be any lower.

Here is a view of the engine setting in the truck.

This is the crossmember for the Mercedes motor mounts.
Once I get everything connected the way I want it, I will pull the engine back out and clean it up and replace some of the gaskets and seals. I will also send the Mercedes flywheel and the Ford flywheels off and have them match balanced.
Thanks for looking, Mark
 
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Old 08-05-2014, 01:09 PM
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To answer a few questions. My auxiliary transmission is a Spicer 5531. I don't have any photos of the mounts for it , I will see if I can take some. I added another transmission crossmember and mount, from another truck frame I had, for the front mount on the Brownie. I made crossmember , that uses the front motor mounts for a flathead, for the rear of the transmission.
I am replacing the original T9 Warner 4-speed with a T98. I don't mind double clutching but as I get older my knee is acting up some so I thought it would be happier.
Thanks, Mark
 

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