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Dexta -60 project

Posted: Tue Jan 22, 2013 7:59 am
by Broadspeed
Hello from Finland :)

Here is few pics from my first Dexta. I bought it as a running machine, but no oil pressure. Reason for that was a broken oil pump shaft. Now I have dismantled it and waiting the spares to arrive from agrilineproducts. I am going to paint it all over and recon all the broken parts.

Also some improvements:
- pedal throttle
- AC generator
- block heater
- better lights
- oem front wheels and new tyres
- snow chains


Just bought:
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Taking it to parts:
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Reconditioning:
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Front nose was damaged and full of dents etc:
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Recon steering assembly:
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Also found original? front bumper, and going to install it also:
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All comments welcome :D

Re: Dexta -60 project

Posted: Tue Jan 22, 2013 9:06 am
by russelm
Be aware that the replacement oil pumps that are available require the pipe work changing to get them to fit.

Re: Dexta -60 project

Posted: Tue Jan 22, 2013 9:11 am
by Broadspeed
Ok. What kind of modifications?

Re: Dexta -60 project

Posted: Tue Jan 22, 2013 10:54 am
by Bensdexta
Broadspeed wrote:Ok. What kind of modifications?
To the pipework. Do a search on here, it's all described!

Lovely work on your tractor. You'll soon have her running great :clap:

Re: Dexta -60 project

Posted: Tue Jan 22, 2013 11:49 am
by Broadspeed
Ok, think I will manage with the pipes :) Pump is coming from agrilineproducts. I dont know will it need any modifications..

Can't wait that I'll get the parts and put it back together :D

Here's also a picture of my father's -64 Special. It has been in everyday use since 1982 and works still perfectly. Cab isn't so awesome but it's practical with snowblower :D

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Re: Dexta -60 project

Posted: Tue Jan 22, 2013 7:51 pm
by Cvans
Your going to love your tractor when it's done. There is nothing wrong with your Dad's cab. Looks just fine to me. I'd buy it in a minute if I had a need for one.
I like that shop also. Having a place like that to work in would be a dream come true.

Re: Dexta -60 project

Posted: Tue Jan 22, 2013 11:03 pm
by ol'Blue
nice work on the nose assembly. Lots of time being spent on this fine tractor... Well done.... :clap:

Re: Dexta -60 project

Posted: Wed Jan 23, 2013 7:10 am
by Broadspeed
Thanks :) For this winter that cab is equipped with heater so the windows will be clear even with very cold weather. And its always easy to take the cab away and make it original 8) (original fenders & seat are stored)

Unfortunately the workshop isn't mine :D Its the company where I am working in and I am authorized to use all tools to my own projects.

Nose assembly is good enough for me. It was so badly damaged that have to be satisfied with the result :lol:

Here is couple of seller's pics:

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Re: Dexta -60 project

Posted: Wed Jan 23, 2013 8:00 am
by Bensdexta
What roll bar is that? Looks similar to my Flatford.

You're lucky to have the use of such a spendid shop - you must have a nice employer!

Re: Dexta -60 project

Posted: Wed Jan 23, 2013 8:50 am
by Broadspeed
Roll bar is homemade by some previous owner.

Yes it's nice to have this kind of workshop to use :) Only the storage areas for own projects aren't very good..

Re: Dexta -60 project

Posted: Fri Jan 25, 2013 3:29 am
by Cvans
Your nose turned out nice. Mine was beat up also and about half the bottom had been cut away for a hydraulic pump. Took 3 days of work to bring it back to usable condition. I haven't come up with the proper grill yet. The Fordson emblem was just about beyond repair.
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Re: Dexta -60 project

Posted: Fri Jan 25, 2013 8:42 am
by Broadspeed
^nice work!

Weird looking rear tyres You have? What are those?


Little bit steering wheel repair:

Surface was damaged until to metal:
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Sand blasting and ceramic metal to damaged areas (so that the water won't go between the cover and metal and rip off the cover in minus degrees):
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Little bit sanding and black industrial paint:
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Does anyone know will this kind of glow plug system work in Dexta?
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Re: Dexta -60 project

Posted: Fri Jan 25, 2013 9:35 am
by Tubal Cain
There is no reason why fitting glow plugs to a Dexta engine wouldn't work, if I remember correctly this has been carried out by one of our Norwegian members. The combustion caps on my 1959 Dexta are fitted with screwed plugs.

The biggest problem is probably finding a sutable glow plug which will fit in the combustion space.

Gerald

Re: Dexta -60 project

Posted: Fri Jan 25, 2013 9:47 am
by Broadspeed
Any tips for correct glow plugs? I think I will fit this kind of plugs to my Dexta, because of cold climate..

Re: Dexta -60 project

Posted: Sat Jan 26, 2013 3:29 am
by Cvans
That first wire in the photo of your glow plugs looks like it might be shorted out on the manifold. You might want to take a look at it. If the glow plugs don't leak I wouldn't be concerned about them. It get down to -30F here. While I haven't tried start it when it is that cold ( wrong oil ) the manifold heater is working and does a great job. I you have the glow plugs installed and they work I would use them also. Also some one installed an engine heater on my lower radiator hose so I left it there. It really does a nice job and the engine starts like summer when it's cold out. You can see it in this photo. If I remember correctly the rear tire are Titan's.
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Re: Dexta -60 project

Posted: Sat Jan 26, 2013 10:16 am
by dexta roadless
It was me who made this setup with glowplugs. To be honest-- it was quite a job, but the tractor started in -18C without a heater. I would say tvice as effective than the original one. the problem is that they get too hot and destroy the insulation inside the plug.

Re: Dexta -60 project

Posted: Sat Jan 26, 2013 4:59 pm
by Cvans
I would think by dropping the voltage across the glow plugs that you could control their temperature and extend their life. A high capacity potentiometer should be able to do it. I'm not an electronics tech. so maybe some else can come up with a better solution for controlling the voltage. Also there are different ways to wire the glow plugs to determine the voltage to each plug.
From what I can see in the photo you did a nice job on the installation. :D

Re: Dexta -60 project

Posted: Sat Jan 26, 2013 6:32 pm
by Lesfen
Broadspeed,
Great work on the steering wheel!
What is the ceramic metal that you used?

dexta roadless,
Neat setup!
You mean the plugs get too hot when the engine is running?

Cvans,
We also have the lower rad hose heater and works great if it's parked near a plugin!
Sometimes the propane torch has to come out to heat the oil pan but it can get chilly standing and watching that it only heats and doesn't burn!!!

What are the white valves(?) on the pole in the upper left of your photo?
Les

Re: Dexta -60 project

Posted: Sat Jan 26, 2013 6:55 pm
by Broadspeed
Thanks. Ceramic metal I used is Belzona 1321:
http://www.belzona.com/products/1000/1321.aspx

I just wonder why the plugs wont last? They get hot in the car engine too?

Re: Dexta -60 project

Posted: Sat Jan 26, 2013 8:00 pm
by dexta roadless
On this the plugs are located in the prechamper caps,which can be fairly hot. But in a modern engine they are in a watercooled cylinder head. I dont know -- maybe I have activated them too long and burned them in that way. i have now got hold of a control unit to limit the activation time, but it is not connected yet. I also thought about activate them together with the starter, but that will give too low voltage and too long time before they get hot. I guess the control unit will be the answer.

Re: Dexta -60 project

Posted: Sat Jan 26, 2013 10:28 pm
by Cvans
Turning the glow plugs on to preheat them is necessary. On my other diesels it can take anywhere from 40 seconds to two minutes depending on the outside temperature. Do you know the voltage rating of your glow plugs? They come in different ranges.

The big thing on the pole is a Purple Martin bird house. I have four Gourd shaped houses hanging under the main house. Two are visible in the photo under the house. Those are what your seeing. Lot of information here. http://www.chuckspurplemartinpage.com/

Re: Dexta -60 project

Posted: Sat Jan 26, 2013 11:36 pm
by dexta roadless
The glowplugs I used was from a old Renault 2,1 diesel, and is at 12 v and about 8-10 sec time

Re: Dexta -60 project

Posted: Sun Jan 27, 2013 7:07 am
by Cvans
That is a very short pre-heat. Those things must really get hot.

Re: Dexta -60 project

Posted: Sun Jan 27, 2013 12:32 pm
by Broadspeed
dexta roadless wrote:The glowplugs I used was from a old Renault 2,1 diesel, and is at 12 v and about 8-10 sec time
Do You have any pictures from the combustion chamber side?

Re: Dexta -60 project

Posted: Tue Jan 29, 2013 10:05 am
by dexta roadless
Sorry I don't. but they protrude about 2 cm into the chamber as far as I remember