misfire/harmonic balancer

Hi first post I have a 99 tacoma 2.4l with 441000 miles it has an oil leak on the harmonic balancer seal after pulling balancer and replacing seali noticed a Crack in the balancer I have new part to replace. does the balancer just slide in? I noticed a small piece missing in the groove of old balancer should I look for it in motor or just replace oil? would this be the cause of misfire ( p0301)? compression is fine I did plugs ,wires and injectors. had plenty of power but oil.leak got progressively worse. any advice would be greatly appreciated thanks

 

Anything like this?

https://www.tacomaworld.com/threads/wheres-my-old-woodruff-key.499154/

 

no not that bad ouch still have to look inside at camshaft to see the woodruff key have to work on it tomorrow due to the rain today replaced seal but had to stop to get balancer then it got dark . so from your pics the keys further back on the crankshaft? and what tool did you use to hold it to torque to 193ftlbs? thanks

 

I used a flat steel bar that I drilled holes in for 2 of the 4 retainer bolts and big hole for the socket. The bar was installed from below and hit the frame to keep it from turning. I am sure other peeps have better ways.

 

IMO
The P0301 not related (anything is possible!!!)

the steel to steel (and woodruff key) area not likely to fail
It’s the ‘rubber’ part in between the inner and outer rings of HB fails
Creates a wobble

I would replace HB if already removed

as far as crank bolt

I just did opposite of starter jolt method
If u have 5spd, could put in fifth, parking brake on…..
Or do what manual says

how did u get CS bolt off????

 

Harmonic Damper Pulley Holding Tool Set Crankshaft Crank Holder For Toyota Lexus | eBay

 

ordered tool thanks.for info

 

You're suppose to replace that crank bolt, supposedly one time use.

I have reused mine, just want to be mindful.......if that backs off, its gonna be a bad day.

 

got new balancer in just waiting on tool to arrive to torque it down. I'm hoping this solves my oil leak/misfire

 

Did you replace the front main behind it? Another common leak point is the oil pump cover gasket. Timing cover sometimes. My 2.7 was leaking from all those areas.

 

yes seal replaced

 

I'm hoping to not have to replace.the other gaskets

 

The oil pump cover gasket is notorious for leaking. It gets baked, I would wager its leaking and if you have the balancer off still I would go ahead and do it. Cheap gasket and LCE sells allen head replacements because you will strip the screws in it.

 

still off I may just replace.that as well won't be able.to.work on it until next week so I probably order gasket thanks for.the tip also would a socket Phillips avoid the stripping as they are not stripped at all.currently

 

or a right angle.phillips head

 

It is JIS but you will 100% need an impact, one of those hand impacts from harbor freight but there isn't much space in there. My hammer drill was about to get out like half and I stripped the other half.

 

i used manual impact wrench
my radiator was out of truck though

 

as far as other gaskets
you are 50% done........if you choose to RR the T- cover gaskets
alot of work thou....took me 4 days and 12 ziploc bags of labled bolts

to get off my 96 2.4L......oil pan/valve cover/ac compressor/alt/ac compressor and alt brackets/drop or hang sway bar/bolted front X member

would 100% replace your distributor O-ring(if your 99 model has distributor....i forget when toyota switched)

 

I know that pain... RR of my timing cover to replace the leaking gaskets took 2 weekends probably 50 hours. Had no idea what I was doing. No spare parts and fired right up