vacuum pump

BURGER · 08-16-05, 06:33 PM

What is it and what does it do. I see people talking about them connected to the alternator and was wondering what happens too them and what they are for. I have the 12-ht motor if that helps.

StanCruiserMan · 08-16-05, 06:51 PM

Quote:

Originally Posted by BURGER

What is it and what does it do. .

It is a vacuum pump and it sucks!
They eventually wear out. I imagine there could be a rebuild kit offered for them somewhere.
A diesel does not provide vacuum for your brake booster so a pump is required. On the 12ht it is on the alternator.

BURGER · 08-16-05, 07:03 PM

So the only thing it does is provide vaccum to the brake booster?

Has anyone done a swap of some sort to omit this from the alt assembly and mount it somewhere else?

StanCruiserMan · 08-16-05, 09:24 PM

Check out NAPA. you could possibly get an electrical replacement. Its probably going to take up some space. I did see an FJ60 with a 3B and an alternate pump once. I believe he got it at NAPA.

cruiser_guy · 08-16-05, 09:54 PM

I know lots of folks don't like the vacuum pump on the altenator but Toyota is not the only one doing it. Touch wood, I've NEVER had a problem with mine and I'm at 436,000kM's on my BJ60. I'd worry more about the frame giving up than the vacuum pump!!

StanCruiserMan · 08-16-05, 09:59 PM

The way I look at it there are 2 things wrong with having it that way. One is that it is very expensive to replace. The other is if you want a more powerful alternator it severly limits your options. Otherwise I like it!

Greg_B · 08-16-05, 10:03 PM

They do give out once in a while...but it is not too common.

I wonder how much the regular maintenance of oil changes effects a pumps life and the spline on the shaft (the vacuum pump is in an oil bath, and has four veins that run in the housing).

We now has access to new shafts, and we currently are getting an alternator rebuilt that had pooched splines.

http://www.gscruiserparts.com/Invent...cessories.html

The page needs to be updated with this information, and will be when we get the alternator back.

hth's

gb

bigbrowndog · 08-16-05, 10:15 PM

The vacuum pump kit here in Oz is app $25. 00 Aussie dollars. I have just put bigger callipers and total rear drum &liner replacement on my Hj75 2H..Was having trouble as I had no booster pressure,I thought the booster was ok as it held vacuum for days at a time. I approached Stewarts 4wd with the problem and was told," bet anything its your booster,very seldom the pump is a problem". Bought another booster, problem solved.

Greg_B · 08-16-05, 10:18 PM

Quote:

Originally Posted by bigbrowndog

The vacuum pump kit here in Oz is app $25. 00 Aussie dollars.

Hi bbd.

What comes with the kit? New o-ring and veins?

What we see in Canada from time to time is the spline on the alt shaft that the pump spins on gets stripped out. Like you mention, not often, but once in a while.

Thanks

gb

bigbrowndog · 08-16-05, 10:27 PM

From what I remember of what he said 2 O rings and some rubber veins, not much.I ended up buying a replacement hose and that was $57.75. Pehaps Pirtec or someone could have made me one cheaper. Will see if I can find one on the net here. cheers.

bigbrowndog · 08-16-05, 10:35 PM

http://parts.offroadshop.com.au/srch_results.cfm There is a kit here. Though I did not look if he posts international. Some should though, if you can't find one give me a pm later.

BURGER · 08-16-05, 11:46 PM

Thanks for the replys. Very good site bigbrowndog.

bigbrowndog · 08-17-05, 12:08 AM

your welcome , anytime

bigbrowndog · 08-17-05, 12:39 AM

beanz2 · 08-17-05, 01:10 AM

Quote:

Originally Posted by bigbrowndog

The vacuum pump kit here in Oz is app $25. 00 Aussie dollars. I have just put bigger callipers and total rear drum &liner replacement on my Hj75 2H..Was having trouble as I had no booster pressure,I thought the booster was ok as it held vacuum for days at a time. I approached Stewarts 4wd with the problem and was told," bet anything its your booster,very seldom the pump is a problem". Bought another booster, problem solved.

At least now you have a completely rebuilt brake system, LOL.

Dave

Tapage · 08-17-05, 11:33 AM

I have 2 one for 3B alternator ( spare but not function in my alternator ) and other for my 2H ( already intalled ) all sucks .. I find in summit a vacum pump about 350 USD ..

ops: to much $$ for a vacumm pump .. but I wana know if in napa I can find other one but with better price .. ?

tlcruiserman · 08-17-05, 06:33 PM

Well the good news is that on the later Diesel engines the pump is seperate and not on the alternator my 1HD-FT has a seperate pump. So I think they saw that over time it was better to put it as a seperat item. I personally think they put it on the back of the alternator because there was not much room for one more thing hooked to a belt on the front of the engine. Must my 2cents

08-16-05, 06:33 PM	#1
BURGER IH8MUD Junior Join Date: Jun 2005 Posts: 159	vacuum pump What is it and what does it do. I see people talking about them connected to the alternator and was wondering what happens too them and what they are for. I have the 12-ht motor if that helps.

08-16-05, 09:54 PM	#5
cruiser_guy IH8MUD Lifer Join Date: Jan 2003 Location: Mixco, Guatemala/Cranbrook & Vancouver, B.C., Canada TLCA# 16387 Posts: 7,362	I know lots of folks don't like the vacuum pump on the altenator but Toyota is not the only one doing it. Touch wood, I've NEVER had a problem with mine and I'm at 436,000kM's on my BJ60. I'd worry more about the frame giving up than the vacuum pump!! __________________ '82 BJ60 H55 tranny, AXT turbo 3B diesel, high nickel alloy head, A/C, BDS lift, factory PTO, Aussie rear locker, OEM LSD front, 4:11's, 32's, PERFECT frame! '76 FJ55, 3B turbo, alloy head, H41 tranny, 3 sp. transfer, 33's, A/C, PTO winch, long range tank! '67 FJ45LV shop project c/w 3B turbo diesel transplant & H41 4 speed, 3 speed transfer, PTO! www.wirrell.com

08-16-05, 10:03 PM	#7
Greg_B IH8MUD Lifer Join Date: Mar 2002 TLCA# 7091 Posts: 3,075	They do give out once in a while...but it is not too common. I wonder how much the regular maintenance of oil changes effects a pumps life and the spline on the shaft (the vacuum pump is in an oil bath, and has four veins that run in the housing). We now has access to new shafts, and we currently are getting an alternator rebuilt that had pooched splines. http://www.gscruiserparts.com/Invent...cessories.html The page needs to be updated with this information, and will be when we get the alternator back. hth's gb __________________ WANT A TOYOTA DIESEL ENGINE? Join the Import Vehicle Owners Association of Canada: Fight for what is right Canadian Vehicle Importers and Suppliers: Join the CAVI TLCA#7091 Last edited by Greg_B; 08-17-05 at 11:28 AM. Reason: 4 veins...not three...Doh...

08-17-05, 06:33 PM	#17
tlcruiserman IH8MUD Lifer Join Date: Jun 2004 Location: San Diego, CA USA TLCA# 7932 Posts: 1,078	Well the good news is that on the later Diesel engines the pump is seperate and not on the alternator my 1HD-FT has a seperate pump. So I think they saw that over time it was better to put it as a seperat item. I personally think they put it on the back of the alternator because there was not much room for one more thing hooked to a belt on the front of the engine. Must my 2cents __________________ Michael tlcruiserman@westcoastcruisers.com West Coast Cruisers Incorporated

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08-16-05, 07:03 PM	#3
BURGER IH8MUD Junior Join Date: Jun 2005 Posts: 159	So the only thing it does is provide vaccum to the brake booster? Has anyone done a swap of some sort to omit this from the alt assembly and mount it somewhere else?

08-16-05, 09:24 PM	#4
StanCruiserMan IH8MUD Junior Join Date: Jul 2005 TLCA# 1674 Posts: 80	Check out NAPA. you could possibly get an electrical replacement. Its probably going to take up some space. I did see an FJ60 with a 3B and an alternate pump once. I believe he got it at NAPA.

08-16-05, 09:59 PM	#6
StanCruiserMan IH8MUD Junior Join Date: Jul 2005 TLCA# 1674 Posts: 80	The way I look at it there are 2 things wrong with having it that way. One is that it is very expensive to replace. The other is if you want a more powerful alternator it severly limits your options. Otherwise I like it!

08-16-05, 10:15 PM	#8
bigbrowndog IH8MUD Lifer Join Date: Apr 2005 Location: N.Q. australia Posts: 1,283	The vacuum pump kit here in Oz is app $25. 00 Aussie dollars. I have just put bigger callipers and total rear drum &liner replacement on my Hj75 2H..Was having trouble as I had no booster pressure,I thought the booster was ok as it held vacuum for days at a time. I approached Stewarts 4wd with the problem and was told," bet anything its your booster,very seldom the pump is a problem". Bought another booster, problem solved.

08-16-05, 10:27 PM	#10
bigbrowndog IH8MUD Lifer Join Date: Apr 2005 Location: N.Q. australia Posts: 1,283	From what I remember of what he said 2 O rings and some rubber veins, not much.I ended up buying a replacement hose and that was $57.75. Pehaps Pirtec or someone could have made me one cheaper. Will see if I can find one on the net here. cheers.

08-16-05, 10:35 PM	#11
bigbrowndog IH8MUD Lifer Join Date: Apr 2005 Location: N.Q. australia Posts: 1,283	http://parts.offroadshop.com.au/srch_results.cfm There is a kit here. Though I did not look if he posts international. Some should though, if you can't find one give me a pm later.

08-16-05, 11:46 PM	#12
BURGER IH8MUD Junior Join Date: Jun 2005 Posts: 159	Thanks for the replys. Very good site bigbrowndog.

08-17-05, 12:08 AM	#13
bigbrowndog IH8MUD Lifer Join Date: Apr 2005 Location: N.Q. australia Posts: 1,283	your welcome , anytime

08-17-05, 12:39 AM	#14
bigbrowndog IH8MUD Lifer Join Date: Apr 2005 Location: N.Q. australia Posts: 1,283

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