1690 development

RGMartin · Feb 25, 2013

Interesting snippet on 1690 development by one of those who was there.

http://dbtc.co.uk/index.php?name=PN...2415&sid=fdffc11e830296603411b7df84c63ae6

jic · Feb 25, 2013

we only sold one new 1690, farmer traded in a 1410. had saddle on both tractors. pulled a 6 row planter with a harrow mtd. on front of planter and ran pto pump at rated pto speed. 1410 never had any trouble. 1690 could,t do it at pto speed, then tried with pto off and wide open not much better. brought back to shop a put it on dyno. wide open still only 80 - 85 hp and lots of black smoke. he limped through rest of planting and then fixted it with a new 2090. boss shipped 1690 out of state. always wanted to put the 1410 on dyno when it came back in someday. it never came back in for anything ever. and we never sold a new 1594 ether.

Adirondack case guy · Feb 25, 2013

Rich,
Interesting reading. I was surprised to read the coments about the trannys being at their limit. We had very few issues with clutches and trannys. Once we learned the little quirks of the hyds, they were very dependable also. We sold around 10 1690s and the engines prooved to be a real pain. Cooling problems, that lousey connector between the two heads for coolant, and a lack of engine response while under load. As stated, all smoke and no go. We only sold a couple of 1594s and they were much better tractors.
I was really looking forward to the Cummins powered DB, but that didn't happen as stated.
Just a side note. There is a 1690/66L ldr., that we sold, listed in the Photo Adds now. Little Falls NY.
Loren

Thad · Feb 26, 2013

That was a interesting read. I got a good laugh out of guy saying 103hp on a 1690. Ive never gotten more than about 83 at best out of one. I have had several 1494s go 85hp with ease. thanks Thad

RGMartin · Feb 26, 2013

(quoted from post at 08:40:35 02/26/13) That was a interesting read. I got a good laugh out of guy saying 103hp on a 1690. Ive never gotten more than about 83 at best out of one. I have had several 1494s go 85hp with ease. thanks Thad

You have to remember they measure their ponies at the flywheel in the UK. I agree, with the turbo 4/55s, my 1494 has real heart, no dyno here to check it on paper though. I have a spare Bosch 4 cylinder P pump here, might make her even more interesting.

Thad · Feb 26, 2013

I turned up the cav on a 1494 all the way up and then dynoed it. It ran 110 with next to no smoke. I was just curious what they would put out in case one of those engines fell into a early 990 around here for a puller. Thad

1370rod · Feb 26, 2013

Very interesting, confirms what I always suspected about the 1690, dog! We only sold one and battled to keep the owner happy for a couple years. We all breathed a sigh of relieve when we learned he traded it for a different color half a state away. Sad is'nt it. Rod.

caseracer · Feb 26, 2013

I had a 1410 in the early 80's that we turned the fuel up and added water injection. It ran very strong in the 7000lb farm stock. We ran 8th gear at about 4000 rpm. Pulled it two seasons and the only touble we had was the valve seats once.

1690 development

RGMartin

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