ps pump belt install issues

fatdudesurfin · 05-04-2005, 09:01 PM

i'm currently wrapping up a timing belt/water pump job on my 92 3vze, but ran into a possible problem when reinstalling the ps pump belt

the belt, when set on the pulleys, and all pulleys torqued down, does not appear to run in parallel on all the pulleys. basically, it looks a bit like this:

top down view

..| <- belt on crankshaft pulleys (one on top and bottom)
./ <- belt path in between crankshaft pulleys and ps pump pulley
| <- belt on ps pump pulley

the belt seems to travel on different planes, about 1/8" apart. i dont know wether this is expected, wether theres some washer im missing, or wether there is a problem when i installed my pump. the belt doesnt travel in a single plane right now, whats the deal with it?

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amorphous · 05-04-2005, 09:24 PM

Well, if it was correct when you took it off, then you forgot a spacer or something. Did you have any leftover parts???

fatdudesurfin · 05-04-2005, 09:26 PM

dont have any left over parts

FSM doesnt show any washers of any sort spacing the pulley from the pump

it just seems incorrect to me, and id like to hear from some mechanics with more experience on the 3vz

amorphous · 05-04-2005, 09:29 PM

wowza. got me stumped. I'm doing belts this weekend....i'll be careful!
btw, i'm doing belts on a 3.4l, so I'm no help....

a

fatdudesurfin · 05-04-2005, 09:32 PM

good luck w/ that man. hopefully your engine isnt a single rusted block like mine is

fatdudesurfin · 05-05-2005, 07:35 PM

anyone have any ideas? im not sure where to go from here

eric-the-red · 05-06-2005, 08:25 AM

All I can think of is check you put the pulleys on the right way. It's been a while since I did my timing belt but I seem to remember some of the pulleys have a front and a back, ie the groove is not centered.
You'll definitely want to correct it before driving much, the belt won't last long like that.

Mad Chemist · 05-07-2005, 08:46 PM

Sounds like you might have the pully on backwards, probably has a "backspacing" on it that doesn't allow you to re-install it either way. Look for a spacer/washer that you might have missed as well.

fatdudesurfin · 05-09-2005, 06:37 PM

not sure what the problem ever was, but i ended up making a spacer out of a washer by grinding out a slot for the locking pin. belt sits level with engine now

thanks for the help

05-04-2005, 09:24 PM	#2 (permalink)
amorphous Registered User Join Date: Apr 2003 Location: Eugene, OR Posts: 839	Well, if it was correct when you took it off, then you forgot a spacer or something. Did you have any leftover parts??? __________________ 98 4runner sr5 33"s and locked with the usual suspects

05-04-2005, 09:29 PM	#4 (permalink)
amorphous Registered User Join Date: Apr 2003 Location: Eugene, OR Posts: 839	wowza. got me stumped. I'm doing belts this weekend....i'll be careful! btw, i'm doing belts on a 3.4l, so I'm no help.... a __________________ 98 4runner sr5 33"s and locked with the usual suspects

05-07-2005, 08:46 PM	#8 (permalink)
Mad Chemist Contributing Member Join Date: Feb 2003 Location: Seattle, WA Posts: 2,878	Sounds like you might have the pully on backwards, probably has a "backspacing" on it that doesn't allow you to re-install it either way. Look for a spacer/washer that you might have missed as well. __________________ -David '98 4Runner: SAW/OME lift, TJM bumper, Warn M8000 winch, Hayden tranny cooler, Trail Carnage front and belly skid plates, PIAA fogs, Rock lights, 33" MT's on Tech1 Rockcrawler rims, Lars sway bar discos, Sonoran bumpstops and rear bumper, RB 1" body lift, Daystar front bumpstops '73 FJ40: 327 SBC, York, Dual Batteries, custom tire carrier, Corbeau Baja SS bucket seats, Bestop top. TLCA#14428

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05-04-2005, 09:26 PM	#3 (permalink)
fatdudesurfin Registered User Join Date: Apr 2005 Posts: 101	dont have any left over parts FSM doesnt show any washers of any sort spacing the pulley from the pump it just seems incorrect to me, and id like to hear from some mechanics with more experience on the 3vz

05-04-2005, 09:32 PM	#5 (permalink)
fatdudesurfin Registered User Join Date: Apr 2005 Posts: 101	good luck w/ that man. hopefully your engine isnt a single rusted block like mine is

05-05-2005, 07:35 PM	#6 (permalink)
fatdudesurfin Registered User Join Date: Apr 2005 Posts: 101	anyone have any ideas? im not sure where to go from here

05-06-2005, 08:25 AM	#7 (permalink)
eric-the-red Contributing Member Join Date: Oct 2003 Location: Port Coquitlam, BC Posts: 2,493	All I can think of is check you put the pulleys on the right way. It's been a while since I did my timing belt but I seem to remember some of the pulleys have a front and a back, ie the groove is not centered. You'll definitely want to correct it before driving much, the belt won't last long like that.

05-09-2005, 06:37 PM	#9 (permalink)
fatdudesurfin Registered User Join Date: Apr 2005 Posts: 101	not sure what the problem ever was, but i ended up making a spacer out of a washer by grinding out a slot for the locking pin. belt sits level with engine now thanks for the help