Hi Fellas
Short Description if you don't wanna read my whole story: Rings stuck and/or glazed wall/ oil starvation= Need rebuild.
Hi guys, I have a 2004 rav4 4x4 with manual transmission, the winter package and torsen rear differential with currently about 240 000 Km (150 000 Miles) on the clock. I love the thing, it's great but it's always had that famous 2AZ-FE oil consumption issue, which until recently wasn't too much of an issue. I would just top it off once or twice a month no problemo.
Then I lent it out to a friend, you know where this is going... I told him to keep in mind the oil level and check it once in awhile, then I met up with him 1500 miles later on a road trip. I drove it and recognized immediately the lack of power, so pulled the dipstick and it was dry. I'm gonna be completely honest here, I'm taking 100% of the blame because I should've made sure he understood to check it every fill and top it off on a long road trip. No use crying over spilled milk, just gotta open that wallet and fork out.
Anyways, I got the car back and noticed it chugs oil like there's no tomorrow. As in I have to top it up within a few fuel-ups. For some reason it's also using more gas than usual. I took out my handy cheap borescope and had a look into cylinder #1. Oil caked on the top of the piston. I wasn't able to see the cylinder walls to see if there they were glazed but either way I knew this was bad news. Either my rings are stuck, and/or my walls are glazed
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THE PLAN:
1) try last ditch effort to unstick the oil rings by using a chemical treatment and soaking the top cylinders. See what happens
2) Rebuild
CHOICE:
1) Rebuild current block
2) Get a shortblock from Toyota $$$
3) Find a newer version 2AZ-FE and rebuild it, insert it.
4) Option 3 (newer version)+ scion Tc Turbo kit, (thinking 200-250 HP)
QUESTIONS:
- Is it a good idea to use a newer version of the 2AZ-FE? will it just bolt up? I heard they upgraded cam profiles and added oil squirters to back of pistons (great for if I wanna turbo it)
-What year of the rav has the most HP on the 2AZ-FE? I've heard 177 rated HP but I'm having trouble identifying which year produced the max HP (mightaswell)
-Any tips to get a proper upgraded engine?
-Any tips on saving $$? I will be doing most of the labour myself ie: engine pulling and installing.
-My mechanic poo poo'd rebuilds and told me to just get a proper shortblock. Any bad experiences with rebuilds?
Any and all advice welcome
Thank you kindly
Short Description if you don't wanna read my whole story: Rings stuck and/or glazed wall/ oil starvation= Need rebuild.
Hi guys, I have a 2004 rav4 4x4 with manual transmission, the winter package and torsen rear differential with currently about 240 000 Km (150 000 Miles) on the clock. I love the thing, it's great but it's always had that famous 2AZ-FE oil consumption issue, which until recently wasn't too much of an issue. I would just top it off once or twice a month no problemo.
Then I lent it out to a friend, you know where this is going... I told him to keep in mind the oil level and check it once in awhile, then I met up with him 1500 miles later on a road trip. I drove it and recognized immediately the lack of power, so pulled the dipstick and it was dry. I'm gonna be completely honest here, I'm taking 100% of the blame because I should've made sure he understood to check it every fill and top it off on a long road trip. No use crying over spilled milk, just gotta open that wallet and fork out.
Anyways, I got the car back and noticed it chugs oil like there's no tomorrow. As in I have to top it up within a few fuel-ups. For some reason it's also using more gas than usual. I took out my handy cheap borescope and had a look into cylinder #1. Oil caked on the top of the piston. I wasn't able to see the cylinder walls to see if there they were glazed but either way I knew this was bad news. Either my rings are stuck, and/or my walls are glazed
-------------------------------------------------------------------------------------------------
THE PLAN:
1) try last ditch effort to unstick the oil rings by using a chemical treatment and soaking the top cylinders. See what happens
2) Rebuild
CHOICE:
1) Rebuild current block
2) Get a shortblock from Toyota $$$
3) Find a newer version 2AZ-FE and rebuild it, insert it.
4) Option 3 (newer version)+ scion Tc Turbo kit, (thinking 200-250 HP)
QUESTIONS:
- Is it a good idea to use a newer version of the 2AZ-FE? will it just bolt up? I heard they upgraded cam profiles and added oil squirters to back of pistons (great for if I wanna turbo it)
-What year of the rav has the most HP on the 2AZ-FE? I've heard 177 rated HP but I'm having trouble identifying which year produced the max HP (mightaswell)
-Any tips to get a proper upgraded engine?
-Any tips on saving $$? I will be doing most of the labour myself ie: engine pulling and installing.
-My mechanic poo poo'd rebuilds and told me to just get a proper shortblock. Any bad experiences with rebuilds?
Any and all advice welcome
Thank you kindly
