STD Tuning Engine Question about OM617 pump drive

Question about OM617 pump drive

Question about OM617 pump drive

 
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HeavyArms
Naturally-aspirated

4
06-12-2018, 03:52 PM #1
Well im making a few mods to my OM617 that im dropping into my Jeep Cherokee. One is i needed to make a delete for the factory vacuum pump. Well because im not good at leaving well enough alone i took the injection pump "dampener?" Drive apart only realize its 2 pieces and sprung. Can i lock it into place? Or do i need to reassemble it to make the engine work? And if i do have to reassemble it do i have to take the timing cover off and gear out to do it?
HeavyArms
06-12-2018, 03:52 PM #1

Well im making a few mods to my OM617 that im dropping into my Jeep Cherokee. One is i needed to make a delete for the factory vacuum pump. Well because im not good at leaving well enough alone i took the injection pump "dampener?" Drive apart only realize its 2 pieces and sprung. Can i lock it into place? Or do i need to reassemble it to make the engine work? And if i do have to reassemble it do i have to take the timing cover off and gear out to do it?

NZScott
HX30W 73/44mm

398
06-12-2018, 11:38 PM #2
That's the "timing device" and needs to be put back together if you want your injection timing to advance properly. I've never had one apart so can't help you but think it's pretty simple as long as you didn't lose any bits!


1978 300D, 373,000km... OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (project car, 7 years off the road and counting ;/)
1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km

1981 240D 498,000
1975 HJ45 ???,000
2001 2.8TD Rodeo 4x2 - 456,000 - DD




NZScott
06-12-2018, 11:38 PM #2

That's the "timing device" and needs to be put back together if you want your injection timing to advance properly. I've never had one apart so can't help you but think it's pretty simple as long as you didn't lose any bits!



1978 300D, 373,000km... OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (project car, 7 years off the road and counting ;/)
1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km

1981 240D 498,000
1975 HJ45 ???,000
2001 2.8TD Rodeo 4x2 - 456,000 - DD




HeavyArms
Naturally-aspirated

4
06-14-2018, 09:03 PM #3
Thank you, I was hoping I wouldn't have to use it haha. now to see if I can make it go back together without taking the chain off haha
HeavyArms
06-14-2018, 09:03 PM #3

Thank you, I was hoping I wouldn't have to use it haha. now to see if I can make it go back together without taking the chain off haha

NZScott
HX30W 73/44mm

398
06-15-2018, 10:25 PM #4
Good luck, others might have tips


1978 300D, 373,000km... OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (project car, 7 years off the road and counting ;/)
1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km

1981 240D 498,000
1975 HJ45 ???,000
2001 2.8TD Rodeo 4x2 - 456,000 - DD




NZScott
06-15-2018, 10:25 PM #4

Good luck, others might have tips



1978 300D, 373,000km... OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (project car, 7 years off the road and counting ;/)
1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km

1981 240D 498,000
1975 HJ45 ???,000
2001 2.8TD Rodeo 4x2 - 456,000 - DD




 
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