It comes with a new gasket that goes between the water pump and the engine block. This is the only gasket that is part of the water pump itself.Hello jseyfert3,
Does Aisin WPT803 come with o-rings?
None, because I did not jack up the engine. The FSM says to jack the engine up so the lower, longest bolt of the passenger top engine mount bracket clears the AC lines. Then you are supposed to lower the engine again until you're done and jack it back up so you can get this bolt back in. I was able to get the bolt out and in simply by loosening the bracket holding the AC lines and gently pushing them back towards the side of the engine bay, and wiggling the bolt/bracket combo out.Q1 > How many engine mounts on the bottom of the car did you loosen?
Q2> When you jack the engine up through the oil pan, did you notice any deform of the oil pan after you finish the job? I am curious how much weight the oil pan can support?
Good to know that we don't have to jack up the engine in order to remove the long bolt.None, because I did not jack up the engine. The FSM says to jack the engine up so the lower, longest bolt of the passenger top engine mount bracket clears the AC lines. Then you are supposed to lower the engine again until you're done and jack it back up so you can get this bolt back in. I was able to get the bolt out and in simply by loosening the bracket holding the AC lines and gently pushing them back towards the side of the engine bay, and wiggling the bolt/bracket combo out.
I only used the jack to raise the entire front of the car off the ground so the wheels weren't touching, then set it down on the pair of jack stands, so that I could pull off the front passenger tire and access the belt and some of the screws from below. It's probably not strictly necessary for this job, but without it it would be a lot harder to reach a couple of the bolts on the water pump and get the belt back on.
The jack in the front center was mainly because I've never liked how if you jack at a corner, the jackstand can't go where you jack, so you're either jacking where you aren't supposed to, or placing the jack where you aren't supposed to. The exception for this is the clever, but expensive jack I once saw that had a slot cut into it so the jackstand could fit in where you jacked the vehicle up, which avoids this issue.
When I had the Toyota TIS subscription I downloaded the page that showed the proper jacking locations, which are essentially the same as what is listed on tsienna.net, though that is for the 2nd gen. The front center jacking location is on the front crossbeam. Look under the van, at the back edge of the plastic splash guard. There's a semi-circle cutout on this back edge in the center. Behind this cutout is the crossbar, with a slightly lowered "hump". This "hump" is where you position a jack to raise the front end of the vehicle. Then place the jack stands at the side frame edge behind the tires, between the notches. Also note the precautions for jacking a vehicle front and/or rear end, the precautions listed are the same on tsienna.net as they are in the 3rd gen FSM. For how to chock the tires before jacking, and to release the parking brake and shift to N before jacking. I did this, but put the parking brake back on after I jacked the front end up and placed it on the jackstands and before working under the van. Then I released the parking brake after checking the chocks before jacking the front end back off the jackstands and lowering it back to the ground.
I didn't do it this time, but another trick I learned somewhere was as a backup to the jackstands, if you remove a tire, place the tire on the ground just behind the jack stand. That way, should the jackstand fail or slip for some reason, there's something else solid below the frame to hopefully catch the vehicle before you end up catching it... I've also used the jack itself as a backup to the jackstands, but this isn't as solid as a tire, but still better than nothing. If I use a jack as a backup to a jackstand, I apply the full weight to the jackstand, then position the jack under a suitable place, keeping it just off from touching the vehicle so it's not taking any load, and ensure the valve is shut completely. But do not, I repeat DO NOT work under a vehicle for any reason that is supported by a jack, only ever work under a vehicle supported by jackstands, after lowering the weight off the jack and onto the jackstands, and verifying it's securely supported.
You're welcome! And ha! If I ever have to do so, then I will. But so far, everything looks pretty sealed. 🤞Awesome info, thanks! Next you need to figure out how to reseal the timing chain cover without pulling the engine.
You're welcome. Good luck on your replacement. Let me know if you have any other questions.