1690 engine substitute

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motoOzarks
Posts: 18
Joined: Mon Sep 03, 2018 5:43 pm
Location: Missouri Ozarks USA

1690 engine substitute

Post by motoOzarks » Fri Jun 14, 2019 6:40 am

Was wondering

will any other engine from a David Brown tractor fit in place of the 6 cylinder on a 1690

1490?
JD 6603
Case/David Brown 1690
Ford 8210

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ollek
Posts: 3774
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

Re: 1690 engine substitute

Post by ollek » Fri Jun 14, 2019 8:38 am

Everything in front of the clutch housing is different. All steering pipes and hydraulic pipes are different, as are the electrical leads that fits to the engine side. I would not even think about swapping a 6-cylinder engine for a 4-cylinder.

Scooby
Posts: 3927
Joined: Tue Jan 03, 2006 8:16 pm
Location: Warwickshire

Re: 1690 engine substitute

Post by Scooby » Fri Jun 14, 2019 9:03 am

motoOzarks wrote:
Fri Jun 14, 2019 6:40 am
Was wondering

will any other engine from a David Brown tractor fit in place of the 6 cylinder on a 1690

1490?
1594 ?
ImageImage


Three is twee, four does snore, but 6 just clicks........Scooby

motoOzarks
Posts: 18
Joined: Mon Sep 03, 2018 5:43 pm
Location: Missouri Ozarks USA

Re: 1690 engine substitute

Post by motoOzarks » Fri Jun 14, 2019 5:56 pm

more specifically
would a 4 cylinder DB bolt up to the trans housing and with the clutch fit the shaft?
Or is a 1490 not the same animal
JD 6603
Case/David Brown 1690
Ford 8210

karenwillson
Posts: 1
Joined: Tue Jun 25, 2019 8:30 am
Location: australia

Re: 1690 engine substitute

Post by karenwillson » Tue Jul 02, 2019 7:38 am

Everything before the grasp lodging is extraordinary. All guiding channels and water powered funnels are extraordinary, just like the electrical leads that fits to the motor side. I would not consider swapping a 6-chamber motor for a 4-chamber.

motoOzarks
Posts: 18
Joined: Mon Sep 03, 2018 5:43 pm
Location: Missouri Ozarks USA

Re: 1690 engine substitute

Post by motoOzarks » Wed Jul 17, 2019 11:28 pm

thanks for the first post

A fellow from Netherlands claims to have seen a swap the other way, from 4 to 6.

with a change of the shafts
JD 6603
Case/David Brown 1690
Ford 8210

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cobbadog
Posts: 573
Joined: Tue Oct 11, 2011 6:18 am
Location: beautiful Coopernook NSW. near Taree. NSW. Australia

Re: 1690 engine substitute

Post by cobbadog » Thu Jul 18, 2019 6:40 am

Ive seen 4 cylinder tractors with a V8 in them, so almost anything is possible but how are your engineering skills to do so?

motoOzarks
Posts: 18
Joined: Mon Sep 03, 2018 5:43 pm
Location: Missouri Ozarks USA

Re: 1690 engine substitute

Post by motoOzarks » Thu Jul 18, 2019 7:19 am

not enough for a v8
JD 6603
Case/David Brown 1690
Ford 8210

User avatar
cobbadog
Posts: 573
Joined: Tue Oct 11, 2011 6:18 am
Location: beautiful Coopernook NSW. near Taree. NSW. Australia

Re: 1690 engine substitute

Post by cobbadog » Thu Jul 18, 2019 12:48 pm

Just one of the tractors was a TEA20 grey fergusson with a 302 Ford V8, a Ford 9N with a sidevalve V8 and some strange model with an alloy Rover V8. All had major surgery to make them fit but as mentioned how much engineering and cost do you take it to. Is it for the challenge to show it can be done or trying to save money and use something available. If it is the second option to save money, believe me you wont save money it will go way over budget.

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