Broken crankshaft key leads to tear down and timing service

OP says he has 230k on the engine, imo despite how expensive the parts are it would be 100% justified and a good idea to do it, (add water pump to that list as well) especially if he wants to keep this truck and get another 230k out of the engine without ever having to dig this deep into it ever again.

Better view of what you're going to be up against, youll most likely need a puller to remove that sprocket and a replacement sprocket, I can only imagine what that broken key is going to do the inside of the keyway as you pull it off the crank

https://www.yotashop.com/timing-kit...ndra-oem-timing-chain-kit-2003-2016-kit-1104/

 

only one way to find out. Or read FSM. Sprocket might just slide onto the key and get held on by the dampener.
If it stuck over time, torch heat might be enough to expand, loosen, and take it off. Maybe penetrating oil.

 

The sprocket does just slide onto the shaft and over the key, the key was sheared/smashed leaving it jagged and probly twisted where it broke. Pulling the sprocket off the crank with that broken key stuck in the crank is going to gouge the nside of key way as he slides the sprocket off the crank. This is assuming the crank sprocket is aluminum like my 2uz's timing belt pulley.

 

pulleys aluminum sure. Timing parts like sprockets are typically steel.

 

Timing belt crank pulley on the 2uz is aluminum, just did timing belt and wp on my 4runner. 1grfe no idea what material that is sprocket is

 

That sprocket is steel without a doubt. If it weren't that chain would tear it up in no time.

Big difference between a timing belt pulley and a chain sprocket.

 

Lol that didnt even cross my mind when reading/replying.

Alright OP bust out the tools and get to work!

 

Yeah, like was mentioned, I'd do a timing chain kit and water pump while at it. I'd personally spring for the Yotashop kit, but if money is tight there's an INA kit on RockAuto that looks to be decent quality. I wouldn't do one of the cheaper kits.

EDIT: Also, I wouldn't be getting parts through Amazon. Lots of really good fakes.

 

Think I’m gonna try to use a vice grips or something, being extremely careful mind you, and try to see if I can wiggle the key out without taking the timing cover off. I feel that if I can get the key out, I can get the new one in. If that fails then fuck it I gotta take the cover off and sprocket anyway. I have taken my fan and the shroud off to give myself some more working space. Thank you everyone for the wisdom and I will keep this thread updated for sure

 

Good luck, take your time, step back and take a breath when you start getting pissed off at the thing. If something doesn't feel right its more than likely because it isn't, looking forward to pictures and a success story.

 

Thank you very much sir, gonna have my father help me with it as well. Better to have two sets of eyes on it than one

 

Yes my goal is to not have to do timing rn and just be able to switch the key with the cover on. If that fails though I plan on replacing the timing components and water pump with quality parts while I’m in there

 

Where you located, somebody might be able to give a hand too

 

LA

 

That Wood Ruff Key isn't coming out without disassembly. See image below.

The key is half moon shaped and so is the slot. It will not slide out period.

https://mechanicaljungle.com/what-is-a-woodruff-key/

 

Sadly you are correct. Guess I’m gonna be taking the old girl apart in the next days or weeks. What do y’all think about this kit I found on eBay? If it’s legit and actually Toyota parts seems like an amazing deal. I haven’t been able to find an oem kit from Toyota, do they not do the kit only separate items?

 

I mean the question is
Is it fake, and where are they getting it/how are they making it be a good price

I too “found the best deal” on replacing my front accessory drive components (pulleys etc) searching OEM PN’s on Amazon but don’t know 100% if they’re real or not. They look legit but who knows.

sometimes dealers even sell on eBay cheaper than parts counter which is the most expensive, but rarely. More often they have a separate online website to order genuine parts through with less markup, that allow the option of shipping it in person pickup at the dealer. Local dealer does this, same as many others.

 

Yeah I mean it says something about buying wholesale. I’m not too worried because of eBay money back guarantee. Is there a way of checking if they’re fake or not once I have them in hand? I can always call eBay and get my money back if they refuse to accept a return. This is for sure something I don’t want to cheap out on or use crappy parts for.

 

I know yotashop has already been recommended, any other ideas? Is INA a good brand?

 

INA is legit. I use their stuff on euro cars alot.

Haven't used any of their timing kits on toyotas though