[AT] IH B275 Diesel

[Dean VP]

Charlie:

That one didn't make it to me. Could you repost it?  Thanks.

Dean A. Van Peursem
Snohomish, WA 98290

"He who makes decisions in haste repents at his leisure."

www.deerelegacy.com

http://members.cox.net/classicweb/email.htm


-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of charlie hill
Sent: Tuesday, December 12, 2006 6:45 AM
To: Antique tractor email discussion group
Subject: Re: [AT] IH B275 Diesel

Dean,  I posted a web link the other  day that shows the replacement glow 
plug.  It was rated at .9V

Charlie
----- Original Message ----- 
From: "Dean VP" <deanvp at att.net>
To: "'Antique tractor email discussion group'" 
<at at lists.antique-tractor.com>
Sent: Tuesday, December 12, 2006 8:56 AM
Subject: RE: [AT] IH B275 Diesel


> Ron:
>
> We have made two assumptions here. Assumption one is that these glow plugs
> are supposed to be wired in series. And the second is that they are rated 
> at
> 0.9V. If either one of these assumptions is incorrect then we are fencing
> with windmills and all that follows here will be incorrect.
>
> I just looked up some typical resistance on glow plugs and the ones I 
> looked
> at were 1.5 ohm at 12v or around 100 watts. To develop 100 watts at 0.9 V 
> we
> would have to have 110 amps of current. So something doesn't compute. What
> is the part number of the replacement glow plug and what is it's wattage
> and/or voltage rating?
>
> The reason the glow plugs are burning up is probably the coil (ballast
> resistor between the 12V source and the first of the in series glow plugs)
> resistance is not appropriate for the system and too much current is
> flowing. For example if that coil is shorted out the lowest wattage rated
> glow plug will blow out immediately. Which sounds like what is happening.
> the coil resistance should be at least 10 times the resistance of the
> individual glow plug resistance if the 0.9V rating has any merit which I 
> am
> beginning to doubt quite seriously.
>
>
> Dean A. Van Peursem
> Snohomish, WA 98290
>
> "He who makes decisions in haste repents at his leisure."
>
> www.deerelegacy.com
>
> http://members.cox.net/classicweb/email.htm
>
>
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of
> rdhaskell at juno.com
> Sent: Monday, December 11, 2006 11:11 PM
> To: at at lists.antique-tractor.com
> Subject: Re: [AT] IH B275 Diesel
>
> This crazy tractor is giving me fits.  I bought one new glow plug and
> compared the resistance to my plugs and found I had two bad glow plugs.
> I also bought an new resistor/indicator.  Wired it according to the
> diagram.  Tested it and the indicator did not show anything, checked the
> voltage along the line and found number two glow plug (a new one) had
> melted. Checked the wiring and everything was according to the diagram.
> Bought another glow plug and tried it again with the same results, number
> two melted.  This system sucks, the voltages can only be checked when
> energized but the glow plug only lasts a coupe of seconds.  Who would
> know if there are 12v glow plugs that will fit directly in the head?  I
> am even considering drilling these out to fit another design glow plug.
> Any advise?
>
> Ron Haskell
> rdhaskell at juno.com
> Riverside, California
> USA
> http://albums.photo.epson.com/j/AlbumList?u=3009370&f=0
> _______________________________________________
> AT mailing list
> Remembering Our Friend Cecil Monson 11-4-2005
> http://www.antique-tractor.com/mailman/listinfo/at
>
>
>
> _______________________________________________
> AT mailing list
> Remembering Our Friend Cecil Monson 11-4-2005
> http://www.antique-tractor.com/mailman/listinfo/at 

_______________________________________________
AT mailing list
Remembering Our Friend Cecil Monson 11-4-2005
http://www.antique-tractor.com/mailman/listinfo/at