changing the waterpump

[Green7mgte]

I just changed the water pump on the 7mgte.
Pretty straight forward procedure, only thing I would do differently next time around Is loosen the fan bolts with the belt still on, instead of using a leverage bar.
that and there is a air rail that runs directly in front of one of the bottom bolts for the pump. loosen it by the nut found were the metal connects into a vacuum hose on the right and move it out of the way. Makes it ezier when you're trying to put your new one on.

good luck.

[Ranma]

Did you remember to change the timing belt?

[My88isGREAT]

[Green7mgte]

Originally Posted by Ranma

Did you remember to change the timing belt?

seeing as how the 7mgte water pump is alternator drive belt driven, no I did not.
And that's BS about half the labor being already done. It takes no more then 10 good minutes of work to get your fan off. Longest part of the job was waiting for the coolant to drain.
oh no I take that back, The longest part of the job was getting those double sided bolts out from the water pump bearing spinner. No one told me to leave the belt on!

Originally Posted by My88isGREAT

what are you lauging at!

[Busted Knuckles]

Originally Posted by Green7mgte

oh no I take that back, The longest part of the job was getting those double sided bolts out from the water pump bearing spinner. No one told me to leave the belt on!

Unlike the above commenters , congrats on a DIY job. The 7M engines do not need to disturb the timing belt or even the timing belt cover to get the water pump off, so I have no idea what that comment was about.

As far as the studs for the fan, the best way to get those out is to put two nuts on the exposed threads, tighten them together with two 10mm wrenches, then use the inside nut to unscrew the stud off of the water pump. I use the same method to install them on the new pump, using the outside nut to tighten the stud. I've used the same method on Ford's and Chevy's, as well as Nissan and other Toyota's.

Also, I usually do a flush before taking out the pump, and replace the radiator cap and thermostat while the system is drained. Cheap insurance.

Again, great job!

[Ranma]

Well when I changed the timing belt on my Japanese Spec 86.5 changed the water pump with the timing belt. The way you guys "dog" your cars figured it was better that way. It was the 2 ltr engine so it may be different.
I have let someone else fix my guy here not having the time to do it myself.

[Green7mgte]

Originally Posted by Busted Knuckles

As far as the studs for the fan, the best way to get those out is to put two nuts on the exposed threads, tighten them together with two 10mm wrenches, then use the inside nut to unscrew the stud off of the water pump.

damn, Thats ingenuity. Probably would of figured that one out if I would of spent the time and thought about it.. It was around 9pm when I started working on it and I finished around 2am.. Water pump isn't life or death if your not getting a constant stream, I had more like a trickle so I could of gotten a few more days of back and forth from work outta it. But I don't like driving around with obvious issues.
I was gonna change the thermostat but I changed that and did a flush before winter came.
Just doing a search I see allot of mechanics change the timing belt at the same time cause "half of the labor is already done." So, if I look at it by a "pay by the hour" type deal then yea I probably would of done it anyhow.
There are few things I don't like doing on my car and timing is one of them. I've been putting off replacing my cps o ring and cover gasket for a season because I don't do timing well.
More immediate issues are rising, such as my lower ball joints are creaking, probably due to all the salt and 20 years of road use. I obtained one and am going to get the other one next week but in the mean time I took 1/2 gallon of old motor oil and mixed it with a 1/2 gallon of diesel fuel. Hopefully that will take care of the dry bones till next weekend. Nothing worse then driving a car and having it creek to make everyone look at you and think "fix your car."

[Ranma]

Yea, I was changing the timing belt so changed the water pump as well. It was not difficult changing the belt. It was just a matter of lining up the marks. It was a GA70 engine and was powerful enough for me. Most of the time the speed limit was 60km and the max is 100km.

[Busted Knuckles]

Originally Posted by Green7mgte

Just doing a search I see allot of mechanics change the timing belt at the same time cause "half of the labor is already done."

A lot of modern cars have the water pumps under the timing belts or even driven by the timing belt. The 7M engines have the water pump off to the side, and no need to even touch the timing belt to deal with it. I did my water pump in a couple of hours on a Saturday three years ago, including a flush and fill. I did the timing belt separately last year when my odo hit 242,000. Except for removing the belts, there was nothing else in common.

[Green7mgte]

yea thats the serpentine belt. id rather have the 3 separate ones. =)