02 tacoma wont start after timing chain replacement

It was like starting car without gas or spark plugs

 

Isnt the 3RZ non-interference like the 5VZ?

 

Is there excess clearance on any valves? A bent crown of valve will NOT close all the way and the clearance will be quite a bit.

 

I believe 3rz is interference motor unlike 5vz

 

Have not checked that,need to reopen valve cover

 

Spinning fast like NO sparkplug in it at all? No popping?

 

Hmmmm. Yea no compression will do that.

Does no one nearby have a optical scope you can use. Just stick in down the spark plug hole, and see what the valves are doing.

 

Yep no popping

 

Thing is, it has SOME compression. It's too low but has 60#. I;ve never seen a bent valve let 60 build, much less EVERY cyl. being the same.
Man it may be toasted but it sure adds up to something else.

 

Check valve lash. That will tell you for sure.
If its way high over spec. Its bent

 

Skip all the BS testing. Pull the head and verify that the intake and exhaust valves are not bent. A definitive solution.

 

Hmmmm, good suggestion. You dont think the falves could be unseated just slightly from contact, enough to allow some level of sealing for the low compression results? Ive seen it before, where the valves were bent, but still allowed enough compression for combustion. Its was full of misfires and ran like shit, but they would run.

 

I agree seen it myself. But whatever the valve not seating gap is will show up in the valve adjustment. 0.35 ends up being 0.60+ valve lash. There's an issue

 

You could still have comp with bent valves. It all depends how bad they are bent and % of leakage(leak down test). I'm almost 100% they are bent. I would just find a rebuild head and slap it on. Save time from replacing valves and lapping.

 

Are we at the point yet where the OP can just go trade-in for an Audi?

 

Were you doing the compression check correctly? Throttle body open and five revolutions of the motor will give you maximum compression.

 

Got time to remove the valve cover today to check the gap on valve,turn the timing gear clockwise to get TDC and found that the timing mark is not align with brass chain???? I align myself both of chains according to manual and double check it but why now it moved?
The dot marks align it just the timing mark on timing gear not align with brass chain
See picture

 

The brass chain link moved due to revolutions of the engine. Disregard the chain link and line up the timing dots to check the timing.

 

Oh ok so even its tdc the brass link does not align with timing gear mark?i know for sure that the dots behind cam gears are align