blueknob

the code on the block is 0465530, it's a 94 4runner, but while doing head gasket i noticed it had a spring tensioner on the timing belt instead of a hydraulic, now i'm wondering if the engine is an older model, any one know what the numbers mean

thook

No idea on the code number. A dealership might help. Google? My '92 has the spring tensioner, but the block is out of an '89. Not much help, I suppose...

Budman1

Tensioner style is determined by heads, not blocks. My '95 vz has hydraulic, it mounts to the head, '92 is spring, it mounts to the block

thook

So, was there not a specific year when Toyota made a transition on the mounting style, then? IOW's, are you saying even some of the older motors....like a '92 or even '89....could have the hydraulic/head mounted tensioner?

Budman1

There is a specific year, I don't know which.....I have 3 engines, 1 set (my 95) of heads are hydraulic, 2 are spring tensioner..google is your friend....you will get more than one source for answers

thook

Well, it's his engine, so I'll let him do the googling. Point is there was a year when the style changed.

thook

Okay....I googled it: https://www.yotatech.com/forums/f116...nsioner-95755/

blueknob

all i can figure is, either someone put an older engine in, or transferred the spring tensioner and fan bracket/bearing from an older model, i was hoping someone knew how to decipher the block numbers, i was just wondering because now my 94 4runner with 140,000 miles might have 300,000 miles on the motor

Budman1

Not necessarily, it may have been changed, couldn't get a hydraulic, bought a spring, I did.
Check your cylinders for compression, if it's good, doesn't matter how old/miles, it's good.
However you could take your engine number to a dealer to check for you or you might get an answer from entering the number on google..... remember, google is your friend.



bud