Ding Fasteners
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DIN912/ ISO4762 Allen socket cap screw, A2-70, A4-80.
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Deutz 912 injection drip timing degrees
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This is a bit of overkill but a smaller hand-pump would cost me just as much with today's exploding prices and this one I can also use to test brake and hydraulic circuits another day:
I should have it in a week and with that I'll have all I need to time it
I should have it in a week and with that I'll have all I need to time it
Got the pump, the timing is DONE, Just going over all the mistakes I made in this single thread thinking about how to edit them out (my first time). I'm working on putting a video together to up it on U-tube when finished. It ended up being a much more difficult and attention/patience demanding task than I would ever have figured, you really need MANY practice runs to get it right.
By backlighting the drip-tube end I managed to catch the forming drop with camera. In retrospect I should have cut 3 inches off the drip-tube to minimize residual vertical fuel in it.
Anyone have an explicit reference for the advance being 31 degrees? How can this be so large when the Cummins 12-valve for instance uses 11 (or as little as 5 in firepumps)?
By backlighting the drip-tube end I managed to catch the forming drop with camera. In retrospect I should have cut 3 inches off the drip-tube to minimize residual vertical fuel in it.
Anyone have an explicit reference for the advance being 31 degrees? How can this be so large when the Cummins 12-valve for instance uses 11 (or as little as 5 in firepumps)?
thepumpguysc
Senior Member
- Joined
- Mar 18, 2010
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- 7,545
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- Sunny South Carolina
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- Master Inj.Pump rebuilder
Which cyl on the pump did u use..??
1 being the drive end..
1 being the drive end..
Simon C
Senior Member
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- Jul 1, 2015
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- 683
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- Rocky Mountain House , AB., Canada
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- Heavy Equipment Mechanic
Nice video. I did the same process on a 47 year old Komatsu D155 Engine. It was set to 38 Degrees before TDC and ran well. It took a few tries to get it right. I have the same Wilbar timing wheel as on the video.
Simon C
Simon C
Thanks. There are a couple of discrepencies between diesels that are over my pay-grade.
1
Using an almost identical pump, the timing on a Cummins 12-valve instead of 31 degrees is 11 degrees (5 only if it's a firepump engine).
2
The same Cummins has a compression psi over 400 instead of 240 with almost the same compression ratio (I could be wrong here, maybe the Cummins has a higher ratio).
For those in need of degrees I'll save the trouble. Here's the one I stole off the net as-was, and what I turned it into. The HARD part was getting it printed to arrive at the 9-1/2 inches of diameter on this engine!
