Balance Shaft Belt Broke (AGAIN)

[DSM Chase]

Well 6 Months after nuking my balanace shaft belt and it taking out my crank sensor, I have done it again. That same terrible sound of death while boosting that sounds like an explosion followed by immediate silence of the motor. Im not sure how i keep breaking these things! Link Threw a 0335 (crankshaft positioning sensor Malfunction) the same code it threw the last time i destroyed the belt. It was a gates Belt tightened to spec all pulleys in the timing side are new. The timing belt did not break and i believe i got lucky again and it didnt jump time. My crank does have 6 thousanths of endplay which i checked with a feeler guage the correct way about a month ago when i had the motor out to put my ac compressor back on, i am KICKING MY SELF IN THE HEAD for not doing a balance shaft delete then. But 6 thousanths is still within spec?

My main question is should i delete the Balance Shaft or is it possible to run a
1G CAS and fake the crank sensor?

 

[Purple_Demon]

I would just delete them. It is quite easy, and beneficial.

 

[awdtalon4451]

Not sure how true this is but I've heard of people faking the cas signal by using a potentiometer (basically an adjustable volume knob) from radio shack

 

[awdtalon4451]

Oops i read that backwards, sorry bro

 

[panda_gsx]

I would delete the balance shaft less chance of further damage

 

[DSM Chase]

i just dont understand how im breaking them like twigs, I mean im not turning 10K rpms or anything this one broke at 7K and 20PSI on a 16G... It makes me wonder if something else is wrong.

 

[tkelly27]

Cut that belt and leave it out until you have time to delete the shafts properly.

 

[kannonk]

Ditch the shafts and find out.

 

[overboosted1g]

i just dont understand how im breaking them like twigs, I mean im not turning 10K rpms or anything this one broke at 7K and 20PSI on a 16G... It makes me wonder if something else is wrong.

You must be over tightening them.

 

[JusMX141]

You're clearly over-tightening the belt. It's cogged; it doesn't need much tension at all to drive the balance shaft.

 

[project_tsi]

Balance shaft bearing could have spun and it has a tight spot or possibly even locks up and throws the belt. Either way leave the belt off until you are able to delete both shafts.

 

[oneslowwdsm]

BS delete and camshaft/crankshaft sensor delete with a 1g cas. IMO the most reliable and when you blow the 7-bolt, you'll already be wired for the cas.

 

[DSM Chase]

how easy should the balance shaft be to spin by hand?

Balance shaft bearing could have spun and it has a tight spot or possibly even locks up and throws the belt. Either way leave the belt off until you are able to delete both shafts.

This makes the most sense to me, i remember the force it took to spin the shaft by hand last time it broke was questionable.

 

[talonalex92]

It should spin with little to no resistance at all. im with project tsi, i bet you spun or are in progress of spinning a bearing and its getting a out of round spot and possibly locking up at some interval. If you cant decide if its spinning freely then, I would pull the oil pan and inspect further. Honestly I would anyways for peice of mind anyways..

 

[DSM Chase]

I honestly have had the Elimination kit and its just been sitting around for months, I guess its time!

 

[weebz1]

my balance shafts on my 7 bolt spin easily by hand.. pretty sure project_tsi nailed it with his post.