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Engine Discussion of preventative/corrective maintenance and other technical issues regarding your coach's engine.

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  #61  
Old 3 Weeks Ago
NH Bill's Avatar
NH Bill NH Bill is offline
1983 FC 35 "Casa Billisa"
 
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Quote:
Originally Posted by Randy Dupree View Post
The problem is when we need/want more HP is when we need the biggest fan we can stuff in the engine bay.
Climbing mountains!!
Its not running down the road,where you get a little help from air flow.
My fan never comes on in town,but climbing a long grade it sure does,and at that time i want all the fan (CFM) i can get.


The electric fans may be able to do that, but I'm awaiting on you smart guys to finger it out!
Sitting in traffic @ 95 degrees ambient FC not happy.

Halfway up big mountain @ 100 degrees ambient FC not happy.

83 FC on CB to 01 LXI... "Water temp pushing 205!"

01 LXI on CB to 83 FC... "Me too! Turn on all your heaters!"


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  #62  
Old 3 Weeks Ago
philipswanson philipswanson is offline
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My concern is not water temperature, it's EGT's. How many of you have a pyrometer in your coach? I drive hills to the EGT, not water temperature which always remains in range.
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  #63  
Old 3 Weeks Ago
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Randy Dupree Randy Dupree is online now
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NHBill,yes,i did say that!
It was hot and a steep climb!
Thats the road up to Virginia City Nv. for you guys reading.


Yesterday i drove over 9000 feet between Salt Lake City and Evanston Wy.
A really long pull,and steep,3rd gear fan on,198 degrees,outside temp was hot until we got near the top.
1600rpms,slow and steady!


Phil,what passes have you been over where you did not watch the engine temps?
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  #64  
Old 3 Weeks Ago
GregOC GregOC is offline
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Must consider effort storage. When on the flat the batteries get to store effort not needed by the driveline.on a climb the stored energy is used leaving the hp for the driveline
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  #65  
Old 3 Weeks Ago
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Randy Dupree Randy Dupree is online now
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Must consider effort storage. When on the flat the batteries get to store effort not needed by the driveline.on a climb the stored energy is used leaving the hp for the driveline
Yes,but then you need to haul some heavy batteries around,right?
Which we already have,and could be used for the job.
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  #66  
Old 3 Weeks Ago
Clembo Clembo is offline
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The point of owning one of these things is to use it as much as possible and work on it as little as possible. If it works and isn’t making weird sounds then don’t fix it. Just carry as many spares as you can afford. Chris, if your like most of us in the first year or two you will find plenty of things you have to work on. I hope not but it’s a Bluebird. Use it and enjoy it and good luck with it.
Dan
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  #67  
Old 3 Weeks Ago
badandy badandy is offline
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My pt35 on the gov at 72mph in 90f ambient runs the fan about 50% duty cycle. In 60f its about 30%, best estimate. Idling in stop and go 90f temps i dont think it ever comes on.

The electric fans will be more efficient than the hydraulic, that has been easilly shown. If you have some reserve battery capacity you can power the fans up the mountain and charge on the way down. I lose 5or 10 mph when my fan kicks on at top speed.
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  #68  
Old 3 Weeks Ago
philipswanson philipswanson is offline
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Quote:
Originally Posted by Randy Dupree View Post
NHBill,yes,i did say that!

Phil,what passes have you been over where you did not watch the engine temps?

Never said I don't watch engine temps. In fact I have a Watchdog that sounds at alarm at a pre-set temp. It doesn't depend on water but measures block temperature to the nearest degree and displays it constantly. I learned that when my Aqua Hot broke a fitting and drained all my water in a matter of seconds. Dash gauge never went up.


What I did say is that it never goes up enough to worry about. The limiting factor is EGTs. That will go up on a hard pull somewhat, especially if I am towing. The biggest hills I normally travel is the Grapevine and west of Williams, AZ and west of Vegas. Coming over Hwy 8 heading home from Phoenix and the climb thru Congress, AZ on the way to Prescott. Very long, steep and hot this time of year but water temps are fine unless a hose breaks. EGTs I watch close.

Some of the PO's never watched the EGT and cracked the head all to he** and burned up the turbo. The turbo was so bad, the housing and the exhaust manifold were split. There was no pyrometer in it when I bought it so I know it wasn't monitored.
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Last edited by philipswanson; 3 Weeks Ago at 02:16 PM.
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  #69  
Old 3 Weeks Ago
ChrisRasman ChrisRasman is offline
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Thanks Andy, I just got the coach today. It is in a storage yard about a mile away with 24/7 access. Give me a few months to get the birds nest up and the bird home and I will start to really tinker.

Clem, I like to tinker. I have never bought a vehicle without doing something to it. My Promaster. I have added air horns, cut in a large side window on the slider. Added cruse control to it. Set it up for class III towing. Pulled all the OEM speakers out and wired in much better ones. Added a new head unit (and I just upgraded that recently) with a amp and sub. And I am sure I am forgetting something.

I have so much I want to do to this coach, I am retired now and my hobbies are everywhere. The electric fans are just one idea I want to do to do. I have been talking about a huge LiPo battery made out of a Nissan Leaf pack (I have sitting out back). Solar (have all the cells now) , new, bigger(smart) inverter (have it in a box right now), a digital command center to bring everything in the coach to one spot (or two) for touch control and monitoring. Better satellite TV just like home (all of that is here and ready to go up). Long range Wifi repeater to bring better Wifi to the coach. LTE cell phone repeater for on the road and camp cell and internet access. Blue Fire engine management . TPMS. Getting all the rust off the chassis. I got more than this in my head. Ever since I was a kid, I can't leave my rides alone. Its not me :-)
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