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70 Smog Pump Maintence?

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Old Feb 15, 2009 | 04:54 PM
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Default 70 Smog Pump Maintence?

I'm in the process of restoring the smog pump on my 1970 LT1 mostly for cosmetic purposes. ---- My question is: should I remove the side cover and clean and lubricate the rotating components while I have the pump off the engine?
Thank you !
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Old Feb 15, 2009 | 05:10 PM
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Hi 67S,
I never thought of your question before so I looked in the Chassis Service Manual to see if there was any info about maintaining the pump properly ... not a thing!
So I don't know.
Regards,
Alan
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Old Feb 15, 2009 | 05:59 PM
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YES DO CLEAN and LUBE i am glad i did it on my 82 it was VERRY DRY runs much more quieter now
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Old Jan 19, 2013 | 10:26 AM
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Is there any problems removing the back of the pump? What kind of lub?

There is a hole on top pf the pump is this for OIL??
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Old Jan 19, 2013 | 10:30 AM
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If you're going to do it, I would agree the time to do it is while the pump is on the bench.

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Old Jan 19, 2013 | 11:12 AM
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Originally Posted by MarkHarclerode
Is there any problems removing the back of the pump? What kind of lub?

There is a hole on top pf the pump is this for OIL??
You've got a hole on top of the pump? Got a pic?
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Old Jan 19, 2013 | 04:32 PM
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If I remember correctly, the cover is aligned with one or two dowel pins. Remove the bolts, slide the cover off of the pins. There is a big bearing that is either part of the cover or part of the cylinder inside the pump. The bearing could probably require some grease.

The bearing on the front of the pump is sealed so you can't grease it. There are carbon shoes that rub on the vanes inside the pump. They don't require lubrication either.

Jim
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