What are you attempting to do that you need to know this? Only reason I ask is if you're diagnosing operational issues, that's fine. If you're digging around in the fuel pump, there might be other pertinent info you should have, and without knowing that fact the guys might not share something important.does anyone have the engine hi idle specs for a d8n with a 3406 in it
regards
I think you better check your book, 3406 is almost all 2100 high idle although some fire pumps could go 2300.The 3406 went in 1000.s of diff. machines.. The speed could be anywhere from 1800-2600.. or higher.
GOTTA HAVE a SN..
I don't know if this is pertinent, but I used to work with a 7H that struggled to cool. After studying the service manual for about a day, and figuring out how the oil flows worked, I decided I needed to check the T/C outlet pressure, and discovered it was out of spec by a small amount. This was over 15 years ago, but if I remember correctly the spec was around 75ish psi, and I was under the minimum spec by around 5 psi. Having tried everything else, I figured out that t/c outlet pressure was controlled by a spool in the control valve on top of the transmission, and decided to pull the valve block and completely disassemble it. When I got to the outlet spool, I found probably the smallest little black particle you could see with normal eyesight in a spot where it could possibly float around and block a small orifice. Put it all back together, cooling issue solved. Not saying this is your problem, but I think you're going to need to get some gauges on this tractor and make sure things are working right. 120°C sounds pretty close to the limit of what I'd consider acceptable for max temp.3o deg is not hot where im from experienced dozer driver always pushing in first, radiator replaced, transmission failed 12 months ago did a clutch pack, cleaned all system out then replaced trans scavage pump, t/c converter was changed three weeks ago to get on top of issues, dont have any info on engine engine is clean when pushing under load, im trying to narrow down issue thinking that if its not reving hi enough creating a stall when pushing. i put my infa red gun on back of transmission housing it reads 80 degrees then i put it on outlet of t/c where sensor is and it reads 120degrees celcius im thinking that that is normal temp vaue after load from t/c. the sensor and guages have been changed aswell sent a video of machine puhing to a fellow that has one and he said it should push all day like this in first gear