Wanderlodge Owners Group  
BuyByeBlueBird.com
Donate

Go Back   Wanderlodge Owners Group > Mechanic's Corner > FC (Forward Control Unique Issues)

FC (Forward Control Unique Issues) If you have a unique issue with your FC model coach and it can't be answered in one of the other forums here, then this is where you can list it.......List your FC Parts here too.

Site Search:
Reply
 
Thread Tools
  #1  
Old 11-12-2016
Blue Emu's Avatar
Blue Emu Blue Emu is offline
Senior Moments
 
Join Date: Feb 2012
Location: Where ever we park our bus.
Posts: 1,002
Default Do you watch boost, or fuel flow?

1985 FC- 250hp Cat w/turbo. We are into our second month of full timing. Coming down the Oregon coast, and then over the mountains into the Sacramento river valley I have a few observations and questions.

This thread is for the hills... When going up a hill, do you watch the fuel-flow and just feather that, or do you watch the boost gauge and keep it as high as you can?

I noticed that if I drive the flow, and just keep the light on the edge flickering, that I seem to slow down a little faster than if I watch the boost gauge and keep it as high as I can. Most of the time, I am able to maintain about 10lbs boost, with sometimes as high as 12 at the higher RPM.

Of course I don't want to waste fuel by just blowing it out the exhaust, but I would like to be able to get over the hill without everyone giving me the single finger salute.
__________________

John & Aleda Ellsworth
A wide-body, living in a narrow bus.
1985 FC-35-SB "Color Us Gone"
john.m.ellsworth@gmail.com
Reply With Quote
  #2  
Old 11-12-2016
Rick's Avatar
Rick Rick is offline
Senior Member
 
Join Date: May 2009
Location: Bellefonte
Posts: 13,226
Default

Quote:
Originally Posted by Blue Emu View Post
1985 FC- 250hp Cat w/turbo. We are into our second month of full timing. Coming down the Oregon coast, and then over the mountains into the Sacramento river valley I have a few observations and questions.

This thread is for the hills... When going up a hill, do you watch the fuel-flow and just feather that, or do you watch the boost gauge and keep it as high as you can?

I noticed that if I drive the flow, and just keep the light on the edge flickering, that I seem to slow down a little faster than if I watch the boost gauge and keep it as high as I can. Most of the time, I am able to maintain about 10lbs boost, with sometimes as high as 12 at the higher RPM.

Of course I don't want to waste fuel by just blowing it out the exhaust, but I would like to be able to get over the hill without everyone giving me the single finger salute.
Didn't you answer your own question? If you want to go over the hill as fast as possible, you have to burn the fuel. Not in a hurry? Smile and wave back as those in a hurry pass.
__________________
Rick Shawver
1SG Ret
2000 LX
Vise Grips
Bellefonte, AR
F127656
Reply With Quote
  #3  
Old 11-12-2016
AC7880 AC7880 is offline
Senior Member
 
Join Date: Mar 2008
Location: Left the Forums
Posts: 1,346
Default

Add a EGT gauge (pyro) and drive up the mountains using that as your guide.

Always better to gear down than lug it in too high a gear with too much throttle at too low of an RPM.
__________________
Sold the BMC, left the forums.
Reply With Quote
  #4  
Old 11-12-2016
Darryl's Avatar
Darryl Darryl is offline
Senior Member
 
Join Date: Aug 2013
Location: Daytona Beach
Posts: 637
Default

What does "watch the fuel flow" mean?

D
__________________
Darryl and Rita
Daytona Beach, FL
87 35' FC
Reply With Quote
  #5  
Old 11-12-2016
Rick's Avatar
Rick Rick is offline
Senior Member
 
Join Date: May 2009
Location: Bellefonte
Posts: 13,226
Default

Some early FCs had a "Max Fuel" light. I think it came on at about 99 percent throttle.
__________________
Rick Shawver
1SG Ret
2000 LX
Vise Grips
Bellefonte, AR
F127656
Reply With Quote
  #6  
Old 11-12-2016
Darryl's Avatar
Darryl Darryl is offline
Senior Member
 
Join Date: Aug 2013
Location: Daytona Beach
Posts: 637
Default

Okay, thanks Rick.
__________________
Darryl and Rita
Daytona Beach, FL
87 35' FC
Reply With Quote
  #7  
Old 11-12-2016
Blue Emu's Avatar
Blue Emu Blue Emu is offline
Senior Moments
 
Join Date: Feb 2012
Location: Where ever we park our bus.
Posts: 1,002
Default

Quote:
Originally Posted by AC7880 View Post
Add a EGT gauge (pyro) and drive up the mountains using that as your guide.
Mine came with a pyrometer. Elaborate a little on what you're saying. Should I try to keep it hot, or cool?

And yes, I did kinda answer my own question. But I needed to confirm from the experts. If I'm just flushing fuel out the exhaust in order to gain a few minutes, then it isn't worth it for me. On the other hand, if the "Max Fuel" light doesn't indicate a wasteful practice, then I'll pay more attention to the boost.
__________________

John & Aleda Ellsworth
A wide-body, living in a narrow bus.
1985 FC-35-SB "Color Us Gone"
john.m.ellsworth@gmail.com
Reply With Quote
  #8  
Old 11-12-2016
Mike Hohnstein's Avatar
Mike Hohnstein Mike Hohnstein is offline
Senior Member
 
Join Date: Jan 2008
Location: NW Milwaukee Metro Area
Posts: 4,634
Default

Don't exceed 900 on the pyro for an extended period. That can be bad. Boost is information only, fuel flow light means nothing, Racor gage in the red is bad.
__________________
Mike Hohnstein
FMCA 97824
'83FC35rb
Germantown, WI/Myrtle ID
www.AutoTransDesign.com

http://s767.photobucket.com/user/mhohnstein/library/
Reply With Quote
  #9  
Old 11-13-2016
Blue Emu's Avatar
Blue Emu Blue Emu is offline
Senior Moments
 
Join Date: Feb 2012
Location: Where ever we park our bus.
Posts: 1,002
Default

Quote:
Originally Posted by Mike Hohnstein View Post
Don't exceed 900 on the pyro for an extended period. That can be bad. Boost is information only, fuel flow light means nothing, Racor gage in the red is bad.
Thanks, never have allowed pyro to get that high. I did manage to get the Racor in the red, but that was just before the engine died from a clogged filter. Doh, quite a learning curve owning a bluebird.
__________________

John & Aleda Ellsworth
A wide-body, living in a narrow bus.
1985 FC-35-SB "Color Us Gone"
john.m.ellsworth@gmail.com
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel Flow JamesR General 4 02-04-2015 12:24 PM
fuel flow ku4ns FC (Forward Control Unique Issues) 1 11-13-2013 01:57 PM
(MAX FUEL FLOW) light stays on buzzes09 Engine 1 08-22-2009 06:26 AM
turbo pressure-max fuel flow gcyeaw Engine 12 05-27-2009 09:15 AM
Fuel max flow light gcyeaw General 9 06-14-2008 07:25 PM

Web Search:

All times are GMT -4. The time now is 04:56 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.