B275 glow plugs

Glenn D

Member
Hi folks. This week. Or at least for then next few days. I'm traveling on Germany and remwmbers a story about swictching out the generally poor glow plugs for something more modern with some cobtrller from German cars.

Could someone give me a rundown of what I would need to convert a working B275 OE glowplug system? I'd like ro see if I Could track it alll down here.

Thanks
 
Hi Glenn,

Below are some posts from the archives with good
info on glow plugs for B275, B414 Bradford build
tractors:

The control switch sends power through the glow
indicator on the dashboard-left, and then through
each glow plug. Note I said "through." They are
all wired in series, one on the dash and four on
the engine. If any plug goes bad, nothing will
work. Keep in mind that when all is hooked in
series, each plug only runs on about 1 volt. So,
don't try to hook 12 volts directly to any of
them.
Heat up time is long, usually around a minute.
That's with the original style plugs, e.g.
Champion CH28, Bosch 0250001001, Lucas DS104, etc.

Some people have converted to fast-heat conversion
plugs that are now offered for old Mercededs 190D
cars - that originally had the same slow system as
your British IH.

I just pulled a new Champion CH28 out the box and
checked resistance (it's the plug for a B275 or
B414). 1.8 ohms. I also pulled a used Bosch off
the shelf for the same tractors. 2.2 ohms. Both
listed as 9/10th of a volt and 40 amps. 18 mm
thread with a 13/16" hex.

They are rated .9 of a volt, not of an ohm.
They sell them right here on this Website for $40,
but I have no idea how correct their aftermarket
part is.

703557r92 Glow Plug Resistor Indicator - For
Models: B250, 275, 354, 414, 424, 434, 444, 2300,
2444. Replaces 703557R92, 706685R92. (Part No:
3042230R91) $39.60

Glow plugs are Champion AG28 or CH28 (155). Bosch
# 0250001001 or 0250001010
Lucas: DS104 Beru: 214GK

All are rated at .9 of a volt and 40 amps, i.e. 36
watts. Ohm's Law says ohms = volts divided by
amps. That should be .025 ohm (1/4) but can't say
I ever checked. I never use an ohm-meter for
checking glow plugs. Too many false readings.

Also such specs can be misleading, at least to me.
I suspect those plugs are rated at .9 volts
because of the total system resistance, not one
plug. So, all five units run in series might equal
that 1/4 ohm, but I'm no math wiz.

Also used in Mercedes 190D cars besides the IH
tractors.

Posted by LJD on Jan 14, 2012:

The IH B414 uses the exact same glow plugs as a
Mercedes 190D car. There are complete "fast heat"
glow plug upgrade kits sold now for the Mercedes
that direct fit the IH B-275 and B-414. No need
for any adapters. Kit comes with four 12 volt
plugs that get wired in parallel instead of series
- and a controller.
Complete kit with four fast heat plugs, new wires,
relay, controller, etc. is $144. Here's the parts
list:

The complete conversion kit includes the following

* Heavy Duty Manual Relay
* Quality push button hole mount switch
* Mercedes factory 80 amp fuse holder
* 2 - 80 amp strip fuses
* Correct size and length of wire needed
* All terminal connectors required
* 4 Upgraded Pencil type Fast Glow Plugs
* Three New Glow Plug Wires
* Complete step-by-step illustrated instructions

http://www.mercedessource.com/node/8320

You can by the kit without the controller for $80
- $120. Here is one on Ebay -but I'm sure you can
find cheaper elsewhere . . .

http://www.ebay.com/itm/MERCEDES-QUICK-FAST-GLOW-
PLUG-KIT-190D-200D-220D-240D-/190579548413

And you could also just buy four plugs for $15
each and figure out the rest yourself.


If you order any Mercedes kits - make sure you
verify the have the 18 mm glow plugs and not the
newer smaller ones.
The correct fast-heat Bosch Duratherm plug to fit
your B-414 is Bosch # 0250201044. Threads are 18
mm X 1.5 - just like your originals. Work at full
12 volts and draw 20 amps each when cold and taper
to 8 amps each when hot.

You can buy just the plugs at $16 each at
Amazon.com and several other places.

http://www.amazon.com/Bosch-0250201044-Glow-Plug-
Fast/dp/B000GTNFWK

Enjoy your travels
JimB
 
I've converted three of them (B275s) to the newer
Bosch plugs. NO controller is needed. Some older
Mercedes cars used the same glow system as the
B275 - so there are kits made for 190D Mercedes -
including a controller. You do not need it.

You remove the old plugs and indicator in the
dash. Install the new 12 volt plugs and wire in
parallel. NOT in series like the old ones were.
Hook a relay to them. Hook the relay to a button
on dash. If you want - you can add an indicator
light (just a 12 volt indicator). No controller
needed. When you want to start - just push your
glow button for 6-10 seconds and then start. I
have not had a single failure since I changed.
Works MUCH better then the old system.
 
I suspect any detailed posts here about this were
written by me. Here's some photos.
a156976.jpg

a156977.jpg

a156978.jpg

a156979.jpg

a156980.jpg
 
Wasn't able to actually be in one place long enough to bring in the parts. Glad of tg that actually. I think the contollerbis jyst a timmer? Anyway I can probably round these glow pluga and a starter relat up at home in an hour amd probably less money than here anyway.

Thanks for showing me your set up. I will do similar. I will have to add a block heater too because this tractor is going to have snow blower duty when the season comes again.
 
(quoted from post at 08:14:00 05/17/14) I've got a 5 foot snwoblower on one of my B275s.

Just picked up a 6' blower (single auger) and a 6' box blade for it.

Bosh is 2 weeks back ordered on glow plugs and all the parts dealers relied on them for inventory so I'm wanting to order online from this site but they are only listing the 9/10v does anyone see any different ones here? Or are the resources listed above my only option
 
(quoted from post at 12:58:35 05/21/14)
(quoted from post at 08:14:00 05/17/14) I've got a 5 foot snwoblower on one of my B275s.

Just picked up a 6' blower (single auger) and a 6' box blade for it.

Bosh is 2 weeks back ordered on glow plugs and all the parts dealers relied on them for inventory so I'm wanting to order online from this site but they are only listing the 9/10v does anyone see any different ones here? Or are the resources listed above my only option

Summit racing has them for a little cheaper than some places. just to finish this thread off

Thanks Guys... now why isn't it charging (grumble)
 
I have a B275. I was wondering where you got your fast heat glow plug kit and what the part number is if you know.
(quoted from post at 08:34:35 05/15/14) I've converted three of them (B275s) to the newer
Bosch plugs. NO controller is needed. Some older
Mercedes cars used the same glow system as the
B275 - so there are kits made for 190D Mercedes -
including a controller. You do not need it.

You remove the old plugs and indicator in the
dash. Install the new 12 volt plugs and wire in
parallel. NOT in series like the old ones were.
Hook a relay to them. Hook the relay to a button
on dash. If you want - you can add an indicator
light (just a 12 volt indicator). No controller
needed. When you want to start - just push your
glow button for 6-10 seconds and then start. I
have not had a single failure since I changed.
Works MUCH better then the old system.
 

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