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Deutz F3L913G Injection Pump Timing

TheBrad83

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Sep 28, 2024
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3
Location
Illinois
This is on a Baker/Linde forklift. I remove injection pump to have it rebuilt. I pulled the 3 bolts instead of center bolt. So, now I have to retime my engine. While doing so my holes weren’t lining up on gear. Later found that the injection pump gear has moved. I didn’t realize that could happen with pump out if you turned crank. So my question is. Can I tilt gear so it doesn’t move and rotate engine where it needs to be and then slide gear back on? Or do I have to pull timing cover and line all the gears back up with dimples on TDC? All other gears have not been touched or moved. Thanks
 

Simon C

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Jul 1, 2015
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Rocky Mountain House , AB., Canada
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Heavy Equipment Mechanic
I have worked a lot on different deutz engines. More 912,912W engine series but hey have basic systems.
You will need to find true TDC of the front damper using a degree wheel .
There is markings on the inner gear train that need to be lined up as per manual instructions from my memory. How much did you turn the engine over. The problem is that on some engines the marks only line up on first install and then you can't see them again because of front cover blocking view. The pump most likely needs to be spill timed with fuel.
You can spill time and not be at the right degree mark on the front damper magnetic degree wheel. Have not had your exact pump off, and it is a fair amount of work to pull front cover off, most likely the oil pan has to come off also.
It is worth the money to buy a overhaul manual, then you can find the answers to questions .
If you have never fuel spilled a Deutz engine I suggest you find someone with experience.
Simon C
 

willie59

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Dec 21, 2008
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Knoxville TN
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Service Manager
Never worked on a 913, and been years since I've worked on a 912 so my memory is vague, but seems I recall TDC timing is done on cylinder closest to the flywheel, and seems like there's timing marks on the flywheel as well, but this is fog in my head, can't say for sure. I'm like Simon C, overhaul manuals aren't that expensive and contain some valuable information. At the very least I'd take the pump back to the injection pump shop and have them spot it, most pumps have a mechanism, pin, or something that holds them spotted until you install it. They should also be able to advise you of where to spot the engine for pump installation.
 

TheBrad83

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Joined
Sep 28, 2024
Messages
3
Location
Illinois
So I got a manual for the engine. The timing gear did indeed move. At the time when I found TDC I didn’t know 1 was at flywheel. So I rotated the engine to the correct cylinder. That’s how my gear got off. So, I was able to move the gear and get it where I needed it to be. Took a long time but I got it. I found true TDC by sticking Allen under rocker arm like manual says and I made 2 marks and then found center. Then my engine tag said 22 degrees. So I made a mark at 22 degrees BTDC. I rotated engine back to that mark. Then I loosened the 3 bolts on injection pump gear and took fuel line off number 1 of pump. I also removed inspection cover. I turned pump til I saw plunger one just starting to lift. I tightened everything up and reassembled and started to engine. I made a few small adjustments. It starts easy and file great and revs great and everything works good and no smoke. I feel like is has low acceleration. Almost like a clogged fuel filter but I have new one on. Maybe I need to advance it a touch. Then I think maybe I gotta do the spill test to for sure know it’s exactly where it should be. Any thoughts from anyone? Also, this pump has no lock or anything and can only be timed on the engine. It has a woodruff key put I pulled wrong bolts and removed the hub as well. Thanks for the replies!!
 

Simon C

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Jul 1, 2015
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Location
Rocky Mountain House , AB., Canada
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Heavy Equipment Mechanic
Timing can only be done with fuel spill pipe . While bringing the pulley up towards TDC with the spill valve out and fuel flowing out the spill pipe, at the point that the drops of fuel become like a chain at 22 degrees before TDC is the spot you would lock the pump.
This is all dependent on how accurately you found TDC with the method you described, for finding True TDC with a 6mm Allen Key. 1.5 Degrees out will be a lot for proper engine acceleration. Hopefully the engine gear train was timed spot on. Any questions ,fire away if I can help.
Simon C
 

TheBrad83

New Member
Joined
Sep 28, 2024
Messages
3
Location
Illinois
Timing can only be done with fuel spill pipe . While bringing the pulley up towards TDC with the spill valve out and fuel flowing out the spill pipe, at the point that the drops of fuel become like a chain at 22 degrees before TDC is the spot you would lock the pump.
This is all dependent on how accurately you found TDC with the method you described, for finding True TDC with a 6mm Allen Key. 1.5 Degrees out will be a lot for proper engine acceleration. Hopefully the engine gear train was timed spot on. Any questions ,fire away if I can help.
Simon C
Then you Simon for information. I ordered a pump but I still need a fuel line off injection pump and fuel line with banjo fitting and a plug for over flow. Looking for used since I will be cutting and modifying them. Do you or anyone you know have these items?
 

Simon C

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Joined
Jul 1, 2015
Messages
823
Location
Rocky Mountain House , AB., Canada
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Heavy Equipment Mechanic
I have it all but am in Northern Alberta. Go to a fuel injection repair shop and they can get you a pipe to modify for fuel spill timing, A used banjo bolt and fitting to attach hose to pump from fuel can. That is where I would get the neccessary tools.
Simon C
 
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