[AJD] Backfire

[Bruce Mahr]

Flames out the exhaust can be from too rich a fuel mixture, too. Among other 
things related to incomplete combustion.

Bruce Mahr

----- Original Message ----- 
From: "Michael Ostrander" <antiquejd at fwi.com>
To: "Antique John Deere mailing list" 
<antique-johndeere at lists.antique-tractor.com>
Sent: Friday, April 08, 2005 8:10 AM
Subject: RE: [AJD] Backfire


> Gary-
> I would check your timing BEFORE pull starting it.  It only takes a minute
> to two.  We have had a tractor or two slip timing at shut off on those 
> last
> few chugs.  You only have to roll the flywheel over and listen for the
> impulse and watch your timing mark on the flywheel.  If you had flames
> jumping out when you last ran it, the timing was set where it could run 
> but
> not as close as it should be.
>
> -----Original Message-----
> From: antique-johndeere-bounces at lists.antique-tractor.com
> [mailto:antique-johndeere-bounces at lists.antique-tractor.com]On Behalf Of
> Gary Epps
> Sent: Thursday, April 07, 2005 11:30 PM
> To: antique-johndeere at lists.antique-tractor.com
> Subject: [AJD] Backfire
>
>
> When I tried to start the '35 D this afternoon I got a sharp backfire,
> really sharp with a metalic over-tone.  I checked carefully and turning
> the flywheel over slowly could hear nor feel anything different.  I
> continued trying to start it and got another sharp backfire, this time
> without the metalic over-tone.  I was working  under a metal roofed
> lean-to fastened to a metal sided building.  I gave up trying to start
> it without help to pull it.
>
> The question is Do I have a problem here, other than after flattening
> the head, compression is so great I don't have the stamina to start it
> by hand.  Am I likely to do any damage pulling it to start it.  Like the
> guy said, "It ran before I parked it."  I had it running a month ago it
> seemed to run well with the exception that it seemed to have quite a bit
>  of flame shooting out the exhaust.  It was near dusk.  What do you
> think am I probably alright to start it by pulling?
>
> Gary
> --
> In the Ozark Mountains of South Central USA where both life and I move
> at a leisurely pace.
>
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