• 6.5L Diesel & Horton EC-450 Electric Fan-Clutch

    Member Dave Rurey sent me a few photos and a description of this adaptation of the Horton EC-450 electric fan-clutch for use on the 6.5L diesel in his motor-home. He wanted me to share with you all.

    Read more about the EC-450 by using a Google search for: Horton EC450
    https://www.google.com/webhp?sourcei...q=horton+ec450

    and: https://www.hortonww.com/on-highway/...600-drive.html

    Here is Dave's description and photos showing the installation. Thanks Dave!
    --------------------------------------------------------------------------

    I had to modify the thermostat housing to be able to fit more temperature sensors in the limited area. One sensor is a mechanical temperature gauge the other is to turn the fan on at 205 Deg.

    The sensor in the radiator hose is for turning the fans on for the air cond. I also had to make a new fan driveshaft to adapt it to the water pump. The Horton fan-clutch is a wonderful addition and it works great. The DB2 mechanical fuel injection pump is turned up to about 70 Ml/stroke.

    Turbocharger I'm using is the Holset HX35, set to produce 15-lbs of boost pressure. I do not have any idea what HP or torque the engine is producing.

    The motor-home weighs approximately 15000 lbs, but it will climb the 4th of July grade on I-90 in North Idaho at 55mile/hr. All I can say is it has a lot more power than the 454 gas engine that the 6.5L diesel replaced.

    I think one thing that really helps it start at any temperature is the Total Seal piston rings. Compression ratio is 19/1. We took a trip to East Coast that totaled 7100 miles round trip. Fuel economy for the entire trip calculated to 11.6 miles/gal. I realize that these engines may be old news, but if built right they do a fair job. I also had the timing gear and chain cryogenically treated, to keep it from stretching.









    This article was originally published in forum thread: 6.5L Diesel & Horton EC-450 Electric Fan-Clutch started by More Power View original post
  • Recent Forum Posts

    jerry598

    Unable to pull obd1 codes

    SES light does work, so bulb is OK. But, coincidentally, I just downloaded the basic version of the GMTD software myself. Now waiting on a cable to be

    jerry598 Today, 09:15 Go to last post
    spongebob

    Someone tell me why

    door wont open when mines broke , you have to use the handle on the inside....best I can figure its a design flaw , sharp corner where a radius should

    spongebob 03-26-2024, 06:29 Go to last post
    DmaxMaverick

    Someone tell me why

    What "broke"?

    This was the first item on my brand new 2001 that broke, when it was only a few weeks old. Replaced under warranty,

    DmaxMaverick 03-25-2024, 19:08 Go to last post
    JohnC

    Someone tell me why

    Might as well buy 4 and get the maximum discount...

    Is there any adjustment or bent parts that may contribute to the failures?

    JohnC 03-25-2024, 17:04 Go to last post
    arveetek

    Unable to pull obd1 codes

    Does your "Service Engine Soon" light come on when you first turn the key to the run position? Wondering if the bulb is burned out...

    arveetek 03-25-2024, 13:18 Go to last post