Much better, this block will be paired with the clean parts from the first engine I opened on page 1, that will include side cover, camshaft holder head piece and valve cover. The only part that will be used from my old engine (the dirty one) will be the head, head is getting dropped off with the machine shop once I get the valve seals order in as they will do all the cleaning and installation. I placed the order for everything yesterday, parts prices have gone up again. Ordered a new ring compressor tool as the old one was a pain to use. - Mopar gasket maker (2). - Head bolts. - Fel-pro head gasket. - Crankshaft main seals (both sides). - Block dowel/positioning pin (needed 1). - Oil filter attachment O-rings (2). - Rod bearing set (4). - Crankshaft bearings sets (5). - Timing chain tensioner. - Updated pistons (4). - Ring set. - Thermostat. Toyota parts total $830. Other parts $116. Machine shop quote is $100 for skimming the head, check valve clearance/sealing capacity and install valve seals. Aforementioned plus deep clean (media blast the intake/exhaust ports), clean and reinstall valve springs etc $175.
There is an evil bolt on the underside of the radiator tube connected to the transmission I got it out but gave up tryna get it back in when all was said and done
Once the radiator hose is off from that pipe (going to the radiator) access to that bolt is easy with a swivel extension or swivel socket.
Bottom end is done, waiting on getting the head done from the machine shop, it should be together this week.
Waiting on sealant to come in as I ran out, side cover to go on once it’s here. Note to self and others, better to install oil pump chain when the head is not on, to align the timing marks on the pump and sprocket when the head is on is tedious. I didn’t want to rotate the pistons etc to get it into alignment as the head and it’s components were not timed with the crankshaft. It took a while but I was able to overcome this hurdle.
6 Month update, prius 1 (mine) has clocked around 15k on the new motor, runs perfect, no oil consumption or death rattle any more. Prius 2 finally got finished a couple of months ago as I didnt get much time over the summer to do the swap and there was no hurry either, this one has clocked 2k miles so far and all seems to be well. I did get a CEL come on for purge valve for the gas tank, turned out to be the purge valve bolted to the air intake, I had just forgotten to plug the harness plug to it, once that was plugged back in the CEL went away on its own.
Does anyone have this repair manual to share? Should be "2ZR-FXE Engine Mechanical Cylinder Block: Reassembly"
Last link in my signature is full engine section, should have whatever’s needed. On a phone turn it landscape to see signature. BTW, attachments are working again.
Toyota, likely to eke out a few extra tenths of a mpg, chose Gen 3 piston rings that had low springiness, often referred to as “low-tension”. This, plus the piston design, is the likely culprit in oil consumption that starts somewhere after 100k miles, and often gets out of control. partway through model year 2014, they revised the rings, and pistons. There’s no real explanation as to why, but there’s a TSB for excessive oil consumption (greater than one quart in 1100~1300 miles IIRC), and the fix involves swapping to the revised pistons and rings. The new rings will not fit in the old pistons, and that “may” be the only reason pistons are revised as well. Toyota has not been forthcoming, apart from that TSB. Clever clogs, they offer to replace rings/pisons, but only if car is under 60k miles. If you look at 3rd Gen mpg stats on Fuelly, there’s a slight but distinct dip in model year 2015. Runaway oil consumption is the price earlier year owners pay for the extra tenths of one mpg.
The maker of this video is a Master Diagnostic / Hybrid Tech with Toyota. He is also an EXTREMELY good teacher. This explains it far better than any thread about this motor ever will… As a Master tech for Toyota from 2006-10, I can vouch for the content of this video. I don’t want to guess how many of these motors I did pistons/rings in under warranty. Then they went and did the same horrible thing to the Prius… (There’s very little difference between the motor in that video and what is found under the hood of a 3rd gen prius. The video’s content certainly applies.)
While you were in there, did you see anything that explained why there are timing marks for an oil pump?
