how hard is it to replace vacuum pump?
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how hard is it to replace vacuum pump?
the bearing went out on the vacuum pump pulley. I'd prefer to replace it myself but don't know if it is a difficult job, or the pros and cons of going with new vs. salvaged vs. rebuilt parts.
Do I need to replace the entire pump/pulley mechanism? Can I just replace the bearings? I can't se any obvious way to remove the pulley and get at the bearings.
Do I need to replace the entire pump/pulley mechanism? Can I just replace the bearings? I can't se any obvious way to remove the pulley and get at the bearings.
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Joined: Jul 2004
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From: East Tn
The hardest part is getting the belt off. My tensioner is TIGHT. The parts store will pull the pully off of the old one and install it on the new one. There are 3 bolts holding it on. Put the bolts on BEFORE you have the pully pressed on. Get a reman and you'll be good to go.
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
Get a new or remaned pump. used is not worth it! take the belt off remove 3 10mm head bolts. The bolts will hit the pulley before you get any one out so you need to work them in steps. Also once you get it off like 61 Uni said most parts stores will switch the pulley over for you but make sure one of the bolts is in the correct hole cause one botl won't come out with the pulley installed. Also there is a hose on the back of the pump that must be removed.
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From: THUNDER BAY
This may be a silly question but how can you tell if the bearing is bad in the vac pump?I have a bad bearing somewhere and can't tell where it is 
,when I try to turn my vac pump to see if the bearing is bad I have a hard time turning it when the belt is off
thanks and lucky you for finding the bad bearing
,when I try to turn my vac pump to see if the bearing is bad I have a hard time turning it when the belt is offthanks and lucky you for finding the bad bearing
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Thanks - I think I get it. I pull the vacuum pump out, but leave the bolts dangling in the pump housing when I take it in to the parts store, because if they are sitting on my workbench, I won't have clearance to get all of them back in. I really appreciate this.
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My belt broke and when I replaced the belt I found the vacuum pump pulley wasn't aligned correctly with al the other pulleys. At closer inspection the pulley had moved in towards the pump housing and was rubbing against the housing making an awful chirping noise. I had heard the noise earlier, but hadn't located the problem until the belt issue. I squirted some 3:1 oil on the contact point and turned the engine over again and the pulley moved away from the vacuum pump housing. I am a novice here, but that sounds like a bad bearing issue to me.
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From: East Tn
Originally Posted by WALJON
This may be a silly question but how can you tell if the bearing is bad in the vac pump?I have a bad bearing somewhere and can't tell where it is ,when I try to turn my vac pump to see if the bearing is bad I have a hard time turning it when the belt is off
thanks and lucky you for finding the bad bearing
,when I try to turn my vac pump to see if the bearing is bad I have a hard time turning it when the belt is offthanks and lucky you for finding the bad bearing
Last edited by 61 uni; Jan 1, 2008 at 08:16 PM.
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Posting Guru
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From: THUNDER BAY
Originally Posted by SumoPigeons
My belt broke and when I replaced the belt I found the vacuum pump pulley wasn't aligned correctly with al the other pulleys. At closer inspection the pulley had moved in towards the pump housing and was rubbing against the housing making an awful chirping noise. I had heard the noise earlier, but hadn't located the problem until the belt issue. I squirted some 3:1 oil on the contact point and turned the engine over again and the pulley moved away from the vacuum pump housing. I am a novice here, but that sounds like a bad bearing issue to me.
Post Fiend
Joined: Mar 2007
Posts: 9,010
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From: Johnson City, TN.
I would buy a belt first. Belts can squeel and be hard to track down. WD-40 will make them stop too.
If in fact it was the pump then the job is not too hard. You will have to get the parts store to swap the pulley for you though.
If in fact it was the pump then the job is not too hard. You will have to get the parts store to swap the pulley for you though.
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its easy, took me less than 30 mins, the hardest part was changing the pulley that took me about 15 mins including a trip to the coner hardware store, with an 3 jaw puller, and an bolt/washer the same size as in the shaft to press it back on i just left the bolt and washer on the pump so i know where to find it if i ever change the vacuum pump again...lol