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B414 how long toget glow plugs hot

D

dctaz37

New User
I was wondering how long I hold the control to get my glow plugs hot before starting? I don't think the indicator works.
 
Hi, if indicator is not working the glow plugs will not be working as the indicator is wired in series with the glow plugs.
But again some previous owner may have rewired the glow plug circuit.
Normally in summer holding glow plug switch for 20 to 30 seconds is sufficient.
If you have to do any replacement or repairs on the glow plug circuit there are newer glow plugs available that are significantly better than the old ones.

Someone on this site will supply information on the make and model of glow plugs and conversion required.
 
Thanks. I think they are working because yesterday I held the control for about 15 seconds and it started right up. Unfortunately I ran out of fuel so had to try starting several times recharging battery several times as well but eventually when I was cranking I decided to turn the glow plug control and it fired up.
 
The OEM glow plugs run at less then 1 volt and take a very long time to heat up. At least 30 seconds. Also, if just one burns up, none will
work. Do you have the glow-plug indicator on the dash? If so, just watch it and make sure it turns red hot. If not, you have problems.

Converting to high-voltage, burn-out glow-plugs makes a HUGE difference on that tractor. I converted all of mine years ago. 8 seconds heat
and ready to start and no more failed plugs.
 
(quoted from post at 09:46:17 05/28/19) If the indicator is not working, you should fix it so that it is.
Click to expand...
It has been suggested to fix the indicator, nit sure what that entails. I've been holding the control for 15 seconds and worry that I hold it longer that I will burn out the system but the indicator might not be working because I'm not holding the control long enough. How hard is it to replace with newer system? What would I need? I live in Ontario Canada.
 
In theory, it is near impossible to burn out the OEM plugs unless you really work at it. That said, I had many of those old style plugs
fail and updated all my British-IH diesels to the new style plugs.

The OEM plug system entails five glow plugs. Four in the engine and a fifth in the dash-board that is your indicator. Either they all work
or none work. The coil-plug in the dash heats up at exactly the same rate as the four in the engine. All five hooked in series and each
runs at 9/10 ths of one volt.

If the indicator in the dash was burnt up, none of the plugs in the engine could work. Just as of any one of the plugs in the engine
failed, no other plugs nor the one in the dash could work.

By far - a great upgrade is to install the fast-heat 12 volt plugs, all hooked in series instead of parallel. The new plugs were designed
for some old Mercedes diesels that used the exact same system as your British (or Indian) IH diesel. Here is the old style OEM plug next
to the newer fast-heat, burn-out proof updrade. Also what the glow coil indicator looks like in that dash.
cvphoto24627.jpg


cvphoto24628.jpg


cvphoto24629.jpg
 
(quoted from post at 11:08:45 05/28/19) In theory, it is near impossible to burn out the OEM plugs unless you really work at it. That said, I had many of those old style plugs
fail and updated all my British-IH diesels to the new style plugs.

The OEM plug system entails five glow plugs. Four in the engine and a fifth in the dash-board that is your indicator. Either they all work
or none work. The coil-plug in the dash heats up at exactly the same rate as the four in the engine. All five hooked in series and each
runs at 9/10 ths of one volt.

If the indicator in the dash was burnt up, none of the plugs in the engine could work. Just as of any one of the plugs in the engine
failed, no other plugs nor the one in the dash could work.

By far - a great upgrade is to install the fast-heat 12 volt plugs, all hooked in series instead of parallel. The new plugs were designed
for some old Mercedes diesels that used the exact same system as your British (or Indian) IH diesel. Here is the old style OEM plug next
to the newer fast-heat, burn-out proof updrade. Also what the glow coil indicator looks like in that dash.
<img src="https://www.yesterdaystractors.com/cvphotos/cvphoto24627.jpg">

<img src="https://www.yesterdaystractors.com/cvphotos/cvphoto24628.jpg">

<img src="https://www.yesterdaystractors.com/cvphotos/cvphoto24629.jpg">
Click to expand...
Thanks for the great explanation. Maybe I'll hold the control longer to see if the indicator lights up. Also, where would I find this upgrade?
 
The only complete kit I know of is offered for a Mercedes car or Unimog all-terrain vehicle.
Mercedes and the IH tractors like your's use the same glow-plug system.

The way to do your's is to buy four of the new-style glow-plugs and then do the wiring yourself. This means wiring the new plugs in
parallel and eliminating the glow-indicator in the dashboard. A 12 volt dash-light can be put in as an indicator instead. The whole change
takes four new Bosch Duratherm glow-plugs, a relay, some wire, and an indicator light for the dash if wanted.

The IH B414 shares the glow-system with . . MERCEDES (Series) 17ODa. 17ODb, 17ODS, 17OS-D,
180D,18ODb D5, 190D, 19ODb 81
INTERNATIONAL BDI44, BD154, B250, B27, B414, 424,
444, 2424. 2444, 3414, 3444, 364, 384, TD-5, 500,
Series, 7000
MERCEDES-BENZ Unimog: 411A

Note the new Bosch plugs have gone up since I got them. Near $20 each on Amazon. There are Chinese copies on Ebay for $5 each but I doubt
they have the same quality as the Bosch plugs.
cvphoto24647.jpg
 
Here is what I did on the dash with my B275 to eliminate the original glow-coil-indicator. When I put in the fast-heat 12 volt Bosch plugs,
I put in this indicator light in the dash instead.
cvphoto24648.jpg
 
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