1978 IH674 Diesel, serial number 1

[tacticalturnip]

Good to hear!

 

[domains]

674 is 62 PTO HP. They were built in Doncaster England or final assembled in Louisville KY from UK skid unit. 1973 first year.

No doubt some were still being sold new in 1978 or later. The 684 came out in 1978 (replaced the 674)

There is a serial number list on tractor data, but it doesn't state if it's US or UK.

View attachment 790696

TractorData.com International Harvester 674 tractor information

Since you are in Canada, it's likely a UK build, the headlights will be in the grill.

The 684 Is a 3.9L diesel aswell, all they did is turn a screw, it strangely lowered PTO hp

 

[Farmer495]

The 684 Is a 3.9L diesel aswell, all they did is turn a screw, it strangely lowered PTO hp

674 and 684 use same D239 and both were rated 62 PTO HP.

574 used D239, but was rated 52 PTO HP. 584 used D206 at 52 PTO HP, there was also a 474 that used the D206 at 48 PTO HP.

 

[domains]

674 and 684 use same D239 and both were rated 62 PTO HP.

574 used D239, but was rated 52 PTO HP. 584 used D206 at 52 PTO HP, there was also a 474 that used the D206 at 48 PTO HP.

I had a IH444 once, The reverse gear bushing messed up, Dealer said he changed one once but did not last, it was a double clutch, I like the single clutch models, Mine does not have glow plugs but plug the Preston heater 20 mins and away it goes, I can blow 3 foot of snow in 2low and no black smoke comes out of muffler

 

[Farmer495]

I had a IH444 once, The reverse gear bushing messed up, Dealer said he changed one once but did not last, it was a double clutch, I like the single clutch models, Mine does not have glow plugs but plug the Preston heater 20 mins and away it goes, I can blow 3 foot of snow in 2low and no black smoke comes out of muffler

I've driven both as well. Have to wait for glow plugs on those BD154 and BD144 engines.

The 444 were a simpler design and cheaper than the 54/74 series World Wide tractors. Dry clutch live PTO, center shift crash box. The 74/84 series nicer to drive with IPTO and synchronized transmission.

 

[domains]

Guy is here for tractor, Site of new tires says max 28psi, what should I tell him to put? thx

Filling tires with calcium

 

[Paystar]

You're not going to use actual calcium are you? After seeing what my Allis Chalmers rims look like after years of calcium I would never use that. Much better stuff these days to use that is not as corrosive.

 

[domains]

You're not going to use actual calcium are you? After seeing what my Allis Chalmers rims look like after years of calcium I would never use that. Much better stuff these days to use that is not as corrosive.

He just removed one tire and rim is like new, he said 18psi , i'm using a tube

 

[domains]

Looking with my eyes they're alittle less wide then my other 18.4 tires, site says 18.1 , At least they are new, Il take pictures after, still have 6 inches of clearance , he said I could not of placed wider tires, A 20 inch wide tire would of been nice but they dont make them

 

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