Wanderlodge Owners Group  
BuyByeBlueBird.com
Donate

Go Back   Wanderlodge Owners Group > Mechanic's Corner > BMC (Bluebird Motor Coach Unique Issues)

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

Site Search:
Reply
 
Thread Tools
  #11  
Old 12-09-2011
Lee Davis's Avatar
Lee Davis Lee Davis is offline
Senior Member
 
Join Date: Feb 2008
Location: Wherever we are parked
Posts: 1,624
Default Hearing the Fan

I will have to try that open window idea. I assume it will be obvious. However I thought the fan was on the passenger side since the radiator is on the driver's side. Is that the fan you are talking about? If so I may need my wife to listen for it on her side (and her hearing is much better than mine anyway since she wasn't into loud Rock and Roll when younger...oh those were the days...)

Best,
__________________
Lee and Jacque Davis - Full Timers

Lee - 423-292-5767 or Jacque 423-262-9569
or lnjdavis@gmail.com Please call or email instead of private messages


1995 BMC 37
300 HP Cummins 6CTA 8.3 Turbocharged Diesel
Boldly Going Nowhere
http://www.bbirdmaps.com/index.cfm #117
Reply With Quote
  #12  
Old 12-09-2011
bwinter1946's Avatar
bwinter1946 bwinter1946 is offline
Senior Member
 
Join Date: Mar 2009
Location: Madera
Posts: 4,060
Default

On my BMC the engine cooling radiator, charge air cooler, and engine cooling fan are all on the drivers side. The hydraulic fan is just inboard of the radiator. The engine cooling fan on mine makes a fairly large roar (jet engine sound) on heavy acceleration from a dead stop that can be heard when the drivers window is open and the stereo is off.

The dash air conditioning condenser and electric fans are on the passenger side.
__________________
Brad Winter
Madera, California
1997, 37' BMC
1999, Jeep Cherokee, Toad
1970, VW Baja Bug, Alternate Toad
Reply With Quote
  #13  
Old 12-11-2011
Lee Davis's Avatar
Lee Davis Lee Davis is offline
Senior Member
 
Join Date: Feb 2008
Location: Wherever we are parked
Posts: 1,624
Default Fans

Thanks, i will have to look at it and listen for it. i was thinking of those big electric fans on the passengers side in the back. I never looked for the one you are talking about. I learn something new every day!
__________________
Lee and Jacque Davis - Full Timers

Lee - 423-292-5767 or Jacque 423-262-9569
or lnjdavis@gmail.com Please call or email instead of private messages


1995 BMC 37
300 HP Cummins 6CTA 8.3 Turbocharged Diesel
Boldly Going Nowhere
http://www.bbirdmaps.com/index.cfm #117
Reply With Quote
  #14  
Old 12-15-2011
bwinter1946's Avatar
bwinter1946 bwinter1946 is offline
Senior Member
 
Join Date: Mar 2009
Location: Madera
Posts: 4,060
Default

OK, as an update I checked my engine cooling fan hydraulic motor and as you might guess, somewhere Spartan made a change. My hydraulic fan motor only has two large lines going to it. There is no small return line back to the reservoir on my 1997 BMC. So as Marty has indicated if you have your hydraulic fan motor changed insure which configuration you have prior to the swap out.

Good info Marty.
__________________
Brad Winter
Madera, California
1997, 37' BMC
1999, Jeep Cherokee, Toad
1970, VW Baja Bug, Alternate Toad
Reply With Quote
  #15  
Old 12-15-2011
Stephen Stephen is offline
Senior Member
 
Join Date: Dec 2007
Location: Niagara Falls
Posts: 3,345
Default

the new fan is a casappa product proprietary to spartan
__________________
Have a Great Day
Stephen Birtles
97BMC37

Email stephen@dupreeproducts.com
www.dupreeproducts.com
Telephone 888 668 4288
cell 716 220 1267
Please use email or telephone to contact
Reply With Quote
  #16  
Old 06-26-2014
curtsprenger's Avatar
curtsprenger curtsprenger is offline
Senior Member
 
Join Date: Jan 2008
Location: Anaheim Hills, CA
Posts: 3,860
Default Proportioning Valve Needed

A friend has a 1995 BMC. He needs the proportioning valve that balances hydraulic fluid to the steering gear and the radiator cooling fan hydraulic motor. Anyone know where to get one?
__________________
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
1974 FC31 534 gas engine, air brakes (sold)
Anaheim Hills, Calif.
Do Not Send PM (Private Messages) Please
curtsprenger@gmail.com
Reply With Quote
  #17  
Old 06-26-2014
bwinter1946's Avatar
bwinter1946 bwinter1946 is offline
Senior Member
 
Join Date: Mar 2009
Location: Madera
Posts: 4,060
Default

Did some searching on the net about the hydraulic system. Seems that Spartan might call it a priority valve or a flow control valve. I found some links on a website that show just the valve and also valve block assembly. Website did not allow me to copy the link. Go to rvchassisparts.com. Then look under: chassis hydraulic system. Then select: manifolds/valves.

Not sure it is what you want but it could be.

Not sure if it applies to our chassis but I also found this thread which might be of interest:
http://www.irv2.com/forums/f25/hydra...on-146878.html

And also this:

Topic: Engine temperature on long uphill pull Posted By: slemnah on 09/03/11 04:12pm

I have solved the fan problem. My motorhome is a Spartan Mountain Motor chassis with a hydraulic fan controlled by a priority valve which contains a flow control valve and a pressure relief valve. There are no electronics involved. When I removed the flow control valve I found that one of the o-rings had simply worn out and was allowing the fluid to by-pass the valve. I could have just replaced the o-ring but since I had already ordered and received the new valves... in they went. The fan now runs much faster at idle and revs up along with the engine. Spartan also sent me the production drawings of the system along with the bulletin on how to change from ATF to hydraulic oil. I am staying with ATF for now, will change later if the problem continues. If anyone needs the drawings, let me know and I will email them to you.
__________________
Brad Winter
Madera, California
1997, 37' BMC
1999, Jeep Cherokee, Toad
1970, VW Baja Bug, Alternate Toad

Last edited by bwinter1946; 06-26-2014 at 07:27 PM.
Reply With Quote
  #18  
Old 06-26-2014
Buckeye Bird's Avatar
Buckeye Bird Buckeye Bird is offline
Senior Member
 
Join Date: Jan 2008
Location: Lancaster
Posts: 2,364
Default

I am pretty sure if he contacts one of the RV parts people at Spartan with the last 5 digits of his VIN they can tell him the exact part used.

http://spartanchassis.com/apa/parts_mh.asp
__________________
Dan & Janet
Buckeye Bird II
1994 BMC 37'
2012 Wrangler Unlimited
Lancaster, Ohio
Reply With Quote
  #19  
Old 06-26-2014
max hendrix's Avatar
max hendrix max hendrix is offline
Senior Member
 
Join Date: Jun 2008
Location: Weatherford
Posts: 685
Default

I have the original priority block and valves from my 40' BMC
They might be what he needs. My new ones work good. I'm not sure I would want to put old ones back in

Was his damaged or what caused him to need a new unit???
__________________
Max Hendrix
Weatherford Texas

96 BMC 40' Sold
2008 HaulMark Super C S&S
Freightliner Chassis w/ 515hp S60 & 12sp Ultrashift
Reply With Quote
  #20  
Old 06-27-2014
curtsprenger's Avatar
curtsprenger curtsprenger is offline
Senior Member
 
Join Date: Jan 2008
Location: Anaheim Hills, CA
Posts: 3,860
Default

Thanks to everyone for their input. I forwarded your information.

Max, I never thought to ask that question.
__________________
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
1974 FC31 534 gas engine, air brakes (sold)
Anaheim Hills, Calif.
Do Not Send PM (Private Messages) Please
curtsprenger@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
Hydraulic Oil lnchaffin Engine 31 03-22-2017 12:30 PM
LXi Hydraulic Fan Rob Robinson LX and LXI (Unique Issues) 70 08-28-2012 03:54 PM
BMC hydraulic motor-radiator fan Marty Gregg Engine 1 08-29-2011 06:37 PM
hydraulic fan motor Don Meyer PT & WB (Twin Axle Pusher Unique Issues) 18 02-28-2011 02:27 AM
hyd. fan motor Ed Leamon Engine 1 05-11-2010 06:40 PM

Web Search:

All times are GMT -4. The time now is 10:18 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.