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EricbSC 1973 05 Eagle

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Re: EricbSC 1973 05 Eagle
Tue May 10, 2011 8:50 am


Very NICE indeed Eric! :D
van
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Re: EricbSC 1973 05 Eagle
Fri May 13, 2011 4:15 pm


Motor mount and trailer hitch ready to powdercoat.

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Eric Brown
Spartanburg, SC
1973 05
Series 60 allison 4000MHP
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Re: EricbSC 1973 05 Eagle
Fri May 13, 2011 6:33 pm


Real nice work Eric. What did your angles turn out being?
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Re: EricbSC 1973 05 Eagle
Sat May 14, 2011 6:55 am


Somethin's leanin but I just can't figure it out ;)
John & Tara Mellis
Bowman, SC
1982 Eagle Model 10 DD 6V92 Allison Auto
It's not the years in your life that count. It's the life in your years...
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Re: EricbSC 1973 05 Eagle
Sat May 14, 2011 1:27 pm


The engine is at app 2 deg. and the drive shaft at 6 deg. I moved everything for a week solid to get where it is. In my case the engine angle is a must. The allison 4000 is a large diameter and if I set the engine level, the tranny hit the bulkhead before I could get anywhere close to the correct angle on the driveshaft. Matches the orig. eagle prints pretty close. John just lean and it will look straight!!LOL The engine mount from the truck would not work, so I made the one shown. Both sides are angled the same. This allows the mount on the bottom to be spacep further apart. The crossmembers were some Jefferson had. He didn't know exactly what they were for but they were 46" c/l of the mount holes which is the width for an 05,or 20. After I measured and mounted them I discovered they were to mount a 60s in the center of the coach with a "T" drive. By turning them backwards and moving the mounts I was able to make them work. Looking back probably easier to build from scratch!!LOL Another eagle lesson!!
Eric Brown
Spartanburg, SC
1973 05
Series 60 allison 4000MHP
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Re: EricbSC 1973 05 Eagle
Mon May 16, 2011 2:45 pm


Making me proud there Eric. I leaned & it straightened right up. How you know these things just amazes me! Looking good as always...
John & Tara Mellis
Bowman, SC
1982 Eagle Model 10 DD 6V92 Allison Auto
It's not the years in your life that count. It's the life in your years...
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Re: EricbSC 1973 05 Eagle
Fri Jun 03, 2011 8:49 pm


I am changing to a Horton air clutch fan. I removed the old assembly including the fan mount. The new fan mount will place the belts on the inside of the truss. I used a fan clucch assembly designed for a Cummins engine. Cummins uses the large "B" serice vee belt which Detroit does not. This unit has a 13" dia. heavy duty clutch. I will machine a hub for the engine to accomodate the same belt. The fan is a 30"dia.
Eric Brown
Spartanburg, SC
1973 05
Series 60 allison 4000MHP
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Re: EricbSC 1973 05 Eagle
Fri Jun 03, 2011 9:15 pm


Looking good Eric , Will you have a switch on the dash to be able to turn it on if needed, We have something similar on our trucks and they work great when pulling a load up a steep grade. a switch on the dash for manual operation.
Andy Wright 68 Silver Eagle Model 5 8V92 #7481
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Re: EricbSC 1973 05 Eagle
Sat Jun 04, 2011 4:57 am


You are right Andy. I will have a manual switch at the dash. I have been told by several people that the clutch will bump the mpg a little also. Hope that one is true at $ 4.00 per gal.!!!!
Eric Brown
Spartanburg, SC
1973 05
Series 60 allison 4000MHP
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Re: EricbSC 1973 05 Eagle
Sat Jun 04, 2011 7:15 am


Eric, as usual, great work.

I made virtually the exact same modification when I installed my engine.

At first, I tried to leave it controlled by the Series 60 ECM, but something was not working correctly, so I put it on a switch on the dash. It works great for driving in a dusty area so that you don't move a bunch of dust into the engine compartment.

At first I played with turning it off when the weather was cool. At the time I was still panicked when the engine got over 200*. With the Series 60, you have temperature protection and I guess it can go to 215* (maybe 220*) safely, but I can't do it - even now. So, I found that I just leave the fan on all the time.

We really do not have much "forced" cooling with our side radiators. I was going to play with a "wickerbill" (about 1/2 inch vertical strip on the side of the bus at the front of the opening). Not sure it would do much good at the speeds we travel, but it is easy to test. I want to do that for both the radiator and charge air cooler on the other side.

I recently put a "mud flap" just behind the drive axle in an effort to try to reduce the pressure in the engine compartment. Maybe the combination of the mud flap, wickerbill and retraining my thought process will let me do some playing with running without the fan. The big issue is that you really need to stay on top of the temperature (constant observation of the temp gauge). I can set an alarm on the SilverLeaf VMSpc to warn me, so I may go that route. As was said, the $4 fuel gives you an incentive.

BTW, for others, Eric used a composite fan. I don't think that an air clutch would last long with the very heavy stock Eagle fan. The inertia to accelerate that much mass would probably do the clutch in rather quickly. Besides that, the composite fan can be specified such that it will move a lot more air.

Jim
Jim Shepherd
Evergreen, CO
'85 Eagle 10 with Series 60 & Eaton AutoShift 10 speed transmission - not at all fancy, but fully functional
Bus Project pages: http://beltguy.com/Bus_Project/busproject.htm
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Email: jim@eaglesinternational.net (Please email me rather than use the PM process)
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