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Pump bushing removal advice needed
by
Rabbit TD
on 29 Mar, 2009 01:16
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Can the pump bushings be driven out using a socket&extension tapping one into the other till they are both free. I just put a 14 m/m 1/4 socket against one of the bushings and it looks like it will work but is there an easier way, it's late at night here and I didn't feel like getting to deep into it right now this late . I have an old pump here to play with getting used to how everything goes and what to look for till the bushings get here for the T/D pump, I already have the seals.
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#1
by
theman53
on 29 Mar, 2009 09:37
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I would think so especially if you mean the shatft busing on top of the pump. If you mean the shaft bushing where the gear is then you would have to have the governor out to do that. So you probably mean the top and that will work as that is how I did it...there is probably a better/bentley way but I don't know that one.
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#2
by
rallydiesel
on 29 Mar, 2009 09:47
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I think he means the drive shaft bushings. They may be able to be tapped out but I doubt it. I think you will have to get them pressed out.
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#3
by
Op-Ivy
on 29 Mar, 2009 17:41
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I was able to easily tap them out and tap the new ones in. IIRC there is a ridge in the middle between the two bushings that won't let them both go out the same way. You have to tap one out at a time using a screwdriver. I can't remember what I used but I do know that it is possible.
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#4
by
rallydiesel
on 29 Mar, 2009 17:42
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Good to know. I will be putting new bushings in a pump I've got and reaming them pretty soon.
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#5
by
Rabbit TD
on 29 Mar, 2009 20:18
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I think he means the drive shaft bushings. They may be able to be tapped out but I doubt it. I think you will have to get them pressed out.
I'm sorry, yes I did mean the mainshaft bushings and I have an old pump here to experiment with first and possible spare parts
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#6
by
rabbitman
on 31 Mar, 2009 00:29
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I used a bolt and washers and a nut and pressed 'em out, IIRC I pushed them out the same way. Pushing one out with the other. Worked ok.
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#7
by
fatmobile
on 31 Mar, 2009 03:09
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I started an injection pump teardown thread,
"journey to the bottom of the pump"
over on vwdieselparts.com
and a bosch injection pump tech from Zips Diesel,.. I think it was in St. Cloud, MN
told us the bushing were supposed to be pushed away from the center,.. the inside one goes inward and the outside one gets pushed outward.
The area between them is supposed to be raised and helps hold them in place.
Pushing them both through the same way was said to remove metal from this center area.
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#8
by
Giles@PerformanceDiesel
on 31 Mar, 2009 08:02
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Hey Guys,
The easiest way to change the bushings is to position the housing driveshaft seal up in the press and push both bushings out at the same time into the housing. The bore for the bushings does not have a raised section in the center. Make sure to use red loctight to install the new bushings. The align ream new bushings to 17mm driveshaft size.
Hope this clears everything up for you guys.
Glad to be of help
Giles
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#9
by
rabbitman
on 01 Apr, 2009 16:19
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Heed.....Giles has spoken.
Hey Guys,
The easiest way to change the bushings is to position the housing driveshaft seal up in the press and push both bushings out at the same time into the housing. The bore for the bushings does not have a raised section in the center. Make sure to use red loctight to install the new bushings. The align ream new bushings to 17mm driveshaft size.
Hope this clears everything up for you guys.
Glad to be of help
Giles
Thanks Giles, I was afraid I'd broke something pushing 'em out the same way.
Good idea on the loctite, I would never have thought of it.
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#10
by
Rabbit TD
on 01 Apr, 2009 20:30
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Hey Guys,
The easiest way to change the bushings is to position the housing driveshaft seal up in the press and push both bushings out at the same time into the housing. The bore for the bushings does not have a raised section in the center. Make sure to use red loctight to install the new bushings. The align ream new bushings to 17mm driveshaft size.
Hope this clears everything up for you guys.
Glad to be of help
Giles
Yes, thanks very much for the answer and I didn't think about the Loctight either. Are the originals Loctighted in there also?