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Author Topic: DT 466 getting harder to start  (Read 2676 times)

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Offline sawguy21

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Re: DT 466 getting harder to start
« Reply #20 on: March 27, 2021, 10:12:58 PM »
Be careful with ether, if ignited by the glow plug hard starting will be the least of the problems.
old age and treachery will always overcome youth and enthusiasm

Offline Sedgehammer

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Re: DT 466 getting harder to start
« Reply #21 on: March 28, 2021, 12:56:10 AM »
Be careful with ether, if ignited by the glow plug hard starting will be the least of the problems.
If using it in an engine with a heating type element of any sort, the engine is turning over before you 'fog' it in as @mike_belben mentioned. If an engine doesn't have any type of heating element, then one can spray it in before cranking, but just enough cannot be expressed enough here.

Offline Gary_C

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Re: DT 466 getting harder to start
« Reply #22 on: March 28, 2021, 01:25:27 AM »
It's amazing how this old thread brought up so many good memories of multiple International engines including the DT 466 which has been called a Legend. 
Building The Legendary Navistar DT466


It's also ironic the post that brought up this old topic is not about the inline 6 cylinder DT 466 but the V-8 T444E which is better known as the 7.3 Powerstroke. The commonality is the later versions (1995 and up) of the DT 466 had a new designed head and the HEUI injectors developed in conjunction with Cat that were also used in the 7.3 Powerstrokes.

What makes it even more interesting to me is my still remaining connection with many of these IH/Navistar  and now Case/IH engines. I still have an older Case 904 cid engine that was the base engine for the upgraded engines in the Magnum series of tractors. I also have a DT 466 in a 2+2 tractor, a D436 non turbo engine that needs new sleeves from a IH 1440 combine that was replaced with a newer rebuilt DT 414 from a IH 960 combine  and a DT 414 in a 1086 that has T/A and tire fluid problems. None of these engines are currently operational and are old retired man projects on the shelf.  ;D
Never take life seriously. Nobody gets out alive anyway.

Offline mike_belben

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Re: DT 466 getting harder to start
« Reply #23 on: March 28, 2021, 02:21:44 AM »
After the DT466 A, B and C models came the "NGD" for new generation diesel.  It used a 12mm bosch P (or maybe an A? Cant recall) injection pump mounted up higher than the prior MW pump, and the intake goes into the head.  That is 95-97 im fairly certain, then was replaced by the DT466E.  The NGD is extremely good but south america has consumed most of them.

The 466C and older has a 3/8 valve stem and ran only an oil deflector shield because its a low pressure drizzle system..  The NGD has a high flow oil system to the valvetrain and switched to oil seals then to smaller, lighter valve stems. But there must have been an early run of 3/8 stems in the NGD because every aftermarket gasket kit for any 466 will come with shields and seals for 3/8 stem.  If you put seals on a 466C or earlier it will starve the valves until they eat through the guide, into the head casting, and into the tops of the bore liners and piston relief pocket.  It took under 4000 miles on a brand new out of frame for this to happen to me.  

New oem headbolts are NLA and foreign ones suck so dont lose your oem headbolts.  No one makes alloy stud kits that will last for road miles.. Theyre sled puller stuff thats junk after a season or two.
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Offline farmfromkansas

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Re: DT 466 getting harder to start
« Reply #24 on: April 02, 2021, 08:44:36 PM »
I had an old 986 farm tractor with the 466 engine, it started up easily, even when pretty cold.  Think it was a 81 model.  Engine was great, but you could not shift gears without grinding.
Most everything I enjoy doing turns out to be work

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