Eberspacher BN4 Questions

Build projects, things that guys have come up with to make a Pinz better (or worse?) and aftermarket add-ons.
Post Reply
Tyler
Germany
Posts: 23
Joined: Sun Mar 25, 2012 5:30 pm
Location: Colorado Springs, Co

Eberspacher BN4 Questions

Post by Tyler » Mon Feb 18, 2013 8:06 pm

I recently aquired a BN4 heater out of an 712. I need a 24V fuel pump to get fuel to the fire. Anyone have a part # or recommendation for this application?. Its pretty much the last piece of the functional puzzle to get it working. However, ive also heard of someone on here using the factory fuel pump for the truck and simply putting a "y" fitting inline to supply both the truck and the heater simultaneously. I dont necessarily like that idea. It may work, but it doesnt sound safe or reliable. Thoughts?. Ideas?.
Thanks.
Tyler
1975 710M
2016 Ram 2500
2016 F-350 Superduty
32’ gooseneck flatbed
1981 M111 welder trailer
2011 M101A1 trailer (sold)

User avatar
westernair
Posts: 747
Joined: Sat Jan 01, 2011 11:14 pm
Location: Tacoma, WA

Re: Eberspacher BN4 Questions

Post by westernair » Mon Feb 18, 2013 8:36 pm

Bn4's were used in VWs as well. Might just use a 12 v from a VW and get your power from you 12v converter for it.
Shawn

62 haffy Bantam
61 haffy 4 door

72 710K - Sold
73 712M - Sold

Q
Posts: 67
Joined: Sun Nov 02, 2008 12:04 am
Location: NY

Re: Eberspacher BN4 Questions

Post by Q » Wed Feb 20, 2013 9:34 am

ebay germany right now:

http://www.ebay.de/itm/Pumpe-fur-Standh ... 500wt_1268

may ship to USA if you ask, but unfortunately seems to not accept paypal...

User avatar
westernair
Posts: 747
Joined: Sat Jan 01, 2011 11:14 pm
Location: Tacoma, WA

Re: Eberspacher BN4 Questions

Post by westernair » Wed Feb 20, 2013 11:08 am

Q wrote:ebay germany right now:

http://www.ebay.de/itm/Pumpe-fur-Standh ... 500wt_1268

may ship to USA if you ask, but unfortunately seems to not accept paypal...
Q good find, I don't think these come up to often, I would get it.
Shawn

62 haffy Bantam
61 haffy 4 door

72 710K - Sold
73 712M - Sold

User avatar
spandit
Posts: 660
Joined: Tue May 18, 2010 5:15 am
Location: East Sussex

Re: Eberspacher BN4 Questions

Post by spandit » Thu Feb 21, 2013 6:27 am

I've got a complete new BN4 to sell if someone wants it - no takers on eBay recently
--

Robin

Pinzgauer 710K
MegaJolt ignition
(upgrading to MicroSquirt)

User avatar
westernair
Posts: 747
Joined: Sat Jan 01, 2011 11:14 pm
Location: Tacoma, WA

Re: Eberspacher BN4 Questions

Post by westernair » Thu Feb 21, 2013 2:01 pm

spandit wrote:I've got a complete new BN4 to sell if someone wants it - no takers on eBay recently
Yours for sale, is it a military 24v unit or a 12v civilian unit?
Is is complete with the special pieces to vent out the side plate and run heat to the back?
Lastly what are you wanting to get for it?
Shawn

62 haffy Bantam
61 haffy 4 door

72 710K - Sold
73 712M - Sold

User avatar
spandit
Posts: 660
Joined: Tue May 18, 2010 5:15 am
Location: East Sussex

Re: Eberspacher BN4 Questions

Post by spandit » Thu Feb 21, 2013 2:32 pm

It's a military 24V unit but designed for a Land Rover so to draw air from the side would need a mod. I was looking for £350 but open to offers
--

Robin

Pinzgauer 710K
MegaJolt ignition
(upgrading to MicroSquirt)

User avatar
ranicotra
United States of America
Posts: 38
Joined: Mon Jan 21, 2013 10:04 pm
Location: Buffalo, NY
Contact:

Re: Eberspacher BN4 Questions

Post by ranicotra » Mon Feb 25, 2013 5:42 pm

found this one on eBay: BIN for $400. currently no bids at $300

http://www.ebay.com/itm/Eberspacher-vw- ... es&vxp=mtr

-Rick

User avatar
spandit
Posts: 660
Joined: Tue May 18, 2010 5:15 am
Location: East Sussex

Re: Eberspacher BN4 Questions

Post by spandit » Tue Feb 26, 2013 2:12 am

ranicotra wrote:found this one on eBay: BIN for $400. currently no bids at $300

http://www.ebay.com/itm/Eberspacher-vw- ... es&vxp=mtr

-Rick

That one is 12V. Mine is 24V and new (unused)
--

Robin

Pinzgauer 710K
MegaJolt ignition
(upgrading to MicroSquirt)

User avatar
audiocontr
Canada
Posts: 1850
Joined: Fri May 01, 2009 1:30 pm
Location: Toronto Regional Area

Re: Eberspacher BN4 Questions

Post by audiocontr » Wed Mar 06, 2013 3:17 pm

I'm confused.

The stock Heaters had an external 24v pump? Where is it mounted on a K?
1973 712m
(2) 1968 Haflingers 1 For Sale
1978 GMC Palm Beach
2001 F250 Diesel and trailer

User avatar
djw
United States of America
Posts: 306
Joined: Mon Feb 27, 2012 5:00 pm
Location: Colleyville, TX

Re: Eberspacher BN4 Questions

Post by djw » Wed Mar 06, 2013 6:04 pm

audiocontr wrote:I'm confused.

The stock Heaters had an external 24v pump? Where is it mounted on a K?
On my K the electric metering pump is installed behind a panel in the right front wheel well by the tank. When the heater controller is calling for fuel, you can feel or hear the pump ticking if you listen closely. But then again my heater is a slightly different model B3LC used in the factory refurbs. There is a spec for volume of fuel over time in the Eberspacher manuals and the pumps are set at the factory. Otherwise you get smoke or flame outs.

If the pump is not ticking, or the tank is low on fuel, or the pump is not metering fuel, you won't get heat. The supply lines from tank to pump in mine had to be replaced, then there was heat.
'74 710K (ÖBH Austrian Rehab) mostly unmolested original - the unicorn (everything works!)
collecting pinz docs since 2012 - pm me if I can help

User avatar
audiocontr
Canada
Posts: 1850
Joined: Fri May 01, 2009 1:30 pm
Location: Toronto Regional Area

Re: Eberspacher BN4 Questions

Post by audiocontr » Fri Mar 08, 2013 12:13 pm

thanks!
1973 712m
(2) 1968 Haflingers 1 For Sale
1978 GMC Palm Beach
2001 F250 Diesel and trailer

Post Reply