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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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White 2-105 injection pump timing

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Nater9500

09-20-2020 16:00:34




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Hi I'm trying to time injection pump on my white on flywheel it has 24 and 28 degrees I have no marks on my crankshaft pulley so how do I know when it's at 28 degrees btdc? Mean I can look thow the whole on the bellhousing and see marks but there's no Arrow to align it with




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Hunt

09-21-2020 07:21:51




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 Re: White 2-105 injection pump timing in reply to Nater9500, 09-20-2020 16:00:34  
If you have had the gear train apart while doing the overhaul you have to get it all lined up and it is very nice to have the snap ring in the pump at the correct location. The snap ring will move over time and can't be trusted on most used pumps. I always reset the snap ring but it require a nozzle tester and adapter to do. With the snap ring reset now you can set the timing off of the marks on the flywheel to get it right. Once it is set correctly with all marks lined then you can take the pump on and off and not worry about the flywheel marks. I find this to be the easiest method to get it right after the gear train has been apart. We used to verify the flywheel marks when the head was off too. It can also be verified by the drop valve method outlined in the factory service manual for the tractor. We had to do that on the early tractors when going to the newer pump with an automatic advance because the flywheel didn't have the correct static timing marks. It has been a couple years since I've looked but I thought those had a pointer inside the housing.

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Dieseltech

09-20-2020 17:31:14




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 Re: White 2-105 injection pump timing in reply to Nater9500, 09-20-2020 16:00:34  
Don't count on the pump snap ring edge to be set in the right spot to begin with. On Perkins 354/372 engines long as the pump drive hub notch aligns with the mounting plate notch with number one on TDC compression stroke, then pump can be installed using the flange ear scribe line. No flywheel timing needed.



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Nater9500

09-21-2020 04:40:59




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 Re: White 2-105 injection pump timing in reply to Dieseltech, 09-20-2020 17:31:14  
The way I understood it in the book you get #1 on TDC on compression stroke then turn eng counterclockwise 30BTDC and the Notches on the pump mounting flange should alignthen sit pump down on and if everything's correct it should F should be on edge of snap ring?



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Dieseltech

09-21-2020 15:23:21




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 Re: White 2-105 injection pump timing in reply to Nater9500, 09-21-2020 04:40:59  
NO!! the pump drive notch/plate notch DO NOT align at 30 degrees BTDC. Those marks align ONLY at TDC on number one compression stroke. THEN the pump scribe line to plate line should be aligned.



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Nater9500

09-25-2020 11:07:49




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 Re: White 2-105 injection pump timing in reply to Dieseltech, 09-21-2020 15:23:21  
So your saying when eng is on TDC on compression stroke all the notches line up on the pump mounting flange it's in time? I sat the pump on and it's right a F so I'm assuming it's all in time now... It starts up good but has a miss when you rev It Up I tried rotating the pump a little bit not much difference perhaps a bad injector? I smell raw fuel



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Nater9500

09-21-2020 04:34:56




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 Re: White 2-105 injection pump timing in reply to Dieseltech, 09-20-2020 17:31:14  
Ok because we overhauled the engine last winner I bought it with eng apart anyway when I whent to time it I couldn't get F to line up with the snap ring it runs but starts hard n doesn't sound right at all compared to my other 105 so I thought I must be a tooth off or something so I took it apart again to try n see what I could do



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