Engine miss

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I have overhauled my 45 Diesel and have a miss on # 3. The fuel is frothy when I bleed it and will not clear up. All of  the other injectors seem to be fine. Will a bad pump head cause this on one cylinder? Any other ideas? I had a mechanic check the pattern on the injectors and they all checked out fine.

Thanks,

Bull

	This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
	The Forum	Parts and Services	Unofficial Allis Store	Tractor Shows	Serial Numbers	History

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
Bull Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 28 Sep 2010 Location: Lamar, Missouri Points: 589	Post Options Post Reply Quote Bull Report Post Thanks(0) Quote Reply Topic: Engine miss Posted: 24 Jan 2011 at 9:37pm
	I have overhauled my 45 Diesel and have a miss on # 3. The fuel is frothy when I bleed it and will not clear up. All of the other injectors seem to be fine. Will a bad pump head cause this on one cylinder? Any other ideas? I had a mechanic check the pattern on the injectors and they all checked out fine. Thanks, Bull

Sponsored Links

Orange Blood Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 29 Nov 2010 Location: ColoradoSprings Points: 4053	Post Options Post Reply Quote Orange Blood Report Post Thanks(0) Quote Reply Posted: 25 Jan 2011 at 6:50am
	If the line was completely empty of fuel, it may take a bit of bleeding to get the air out. Frothy means air, if all the other lines are free and clear, it should eventually come out. How long have you let it run with # 3 cracked. My best guess says it should clear up in under 30 seconds, depending on how much air "was" in the pump.
	Still in use: HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060 Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7

Bull Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 28 Sep 2010 Location: Lamar, Missouri Points: 589	Post Options Post Reply Quote Bull Report Post Thanks(0) Quote Reply Posted: 25 Jan 2011 at 8:46am
	I let it run several minutes 3 different times. I,ve been around diesels my entire life, never saw anything like this.

Matt (Jordan,MN) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Jordan, MN Points: 3793	Post Options Post Reply Quote Matt (Jordan,MN) Report Post Thanks(0) Quote Reply Posted: 25 Jan 2011 at 12:38pm
	Sounds like you got a piece of dirt in the nozzle and it's not seating correctly. I had this happen before. You will have to pull your injector and remove the tip. I clamp 2 bolts by the heads in the vise to act as pins to hold the injector through the bolt holes. take a 12 point wrench or socket and remove the nut holding on the tip. Carefully remove the tip and and pull the pintle out of the tip. It should move very easy but it probably won't if it's got dirt in it and is seized. Once the pintle is removed clean the pintle and tip with brake clean and compressed air. Lube the pintle with some clean fuel. If the pintle moves freely in the tip ressemble and it should hopefully run better. I had this happen on a MM UB diesel and this is what the man at the injection shop told me what to do. I was haveing a problem with rust in the line. After doing this a few time i took the injection line off and soaked it in muradic acid for a hour and it solved my problem. Matt