So i was driving my freshly rebuilt lsv today when all of the sudden CRASH...i herd it fly under the car.....crazy i've never seen this happen before, and i installed it the same way i always do...so i drove the car home and what not now i gotta put a new one on....

luckily i have a couple spares at the house so that cool...just gotta get a new key for it......

Q? Has this ever happened to any of u? If so did it do anything to ur motor as long as the timing belt stayed on and it didn't skip timing??

 

I see the damaged key way from here. Maybe you got lucky though.


This thread belongs in another forum.


Modified by Runnerdown at 4:25 AM 1/18/2007

 

It happened on my GSR but no damage..
As long as your timing belt didnt come off.
It could of happened because it wasnt torqued down right. Put some locktight on it and torque it down..

 

The snout of the crank can be damaged.

 

i haven't inspected for damage yet but i didn't see any at a quick glance.....

i forgot to use loc tite on it, and well....**** happens....

i'm gettin a new key and puttin on a new one today.....

btw...i put 10 or so miles on the car without it on there...how's that for battery life..lol

 

**** happened to me. it didn't fly off while driving, but it got loose and wobbled like a ****. by the time i removed it, the pulley, key, and crank were damaged. this was on a motor with 1000 miles....so i did a crank swap with new bearings - the pistons stayed in the cylinders and the rings remained in place.

 

that happened to my dream sohc motor back a few years ago. I put all this money into building a nice setup and I even put a stock OEM Honda pulley on it just so there isnt a risk of having a bad pulley.

The motor felt strong, but after a few runs, the alternator belt kept coming off at top end of the track. We checked the pulley while revving the motor on the dyno and it was straight like stock. No signs of movement or vibration. Took it back to the track another time and lost the belt every pass. It seemed to happen only at 3rd gear and couldnt figure out why, everything looked good.

Eventually the pulley broke off and the crack was right around the pulley bolt/washer. We couldnt see the crack since it was right along head of the bolt. It made a clean break and the pulley came off the car and rolled down the track. The bad vibrations after those dyno runs and track times tore up the bearings and crank pretty bad. Never rebuilt the motor since then.

My case was a bit different, but ya I've seen other people forget to tighten the pulley bolt and the pulleys coming off. Thats common and just simple errors thats all.

oh ya, get a new pulley since the one you had probable got dented up and damaged and could have thrown off the balance on it.

 

What is good about having an Electromotive Ignition--which is a crank fire design (had to get the "gear" mounted onto a stock crank pulley) is that if the pulley starts to come off, you lose the crank sensor signal so the car will shut off. I actually check 3 things before and after every hard drive.

1) make sure cam/cam gear bolt is on tight
2) make sure belt tensioner bolt is tight (I have had tensioner slip before=bad news)
3) make sure crank pulley bolt is on tight

Most people say its overkill, but you will never hurt a motor from any of these bolts loosening if you do this.

 

You guys are talking about the one that drives the accesories right? Don't you have to torque that thing down to like 130 ft-lbs. I ended up buying the Moroso Crank Pulley Wrench when I had my B-Series, just because it was damn near impossible to break that thing loose.

 

Anybody here thinks he should change his oil pump. And if so why?

Cosworth Engineering

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Don Lackey &raquo;</TD></TR><TR><TD CLASS="quote">Anybody here thinks he should change his oil pump. And if so why?
</TD></TR></TABLE>

Mr. Bueller.. anyone.. anyone.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Don Lackey &raquo;</TD></TR><TR><TD CLASS="quote">Anybody here thinks he should change his oil pump. And if so why?
</TD></TR></TABLE>

i say no. or at least i hope not. my pump only had 1000 miles and only had about 20 miles where the pulley was loose. so i said **** it. it's been cool so far, 10k miles later....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ( o )( o ) &raquo;</TD></TR><TR><TD CLASS="quote">

i say no. or at least i hope not. my pump only had 1000 miles and only had about 20 miles where the pulley was loose. so i said **** it. it's been cool so far, 10k miles later....</TD></TR></TABLE>

My motor only had 15 dyno passes, 10 runs at the track when the pulley came off. Never even hit the streets. Pulled the motor apart and there were already some shavings on the pan... that already is a reason not to reuse the oil pump. And the possibility of possible shavings in the pump is not worth it to reuse on a newly built motor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by exospeedAMcrx &raquo;</TD></TR><TR><TD CLASS="quote">

My motor only had 15 dyno passes, 10 runs at the track when the pulley came off. Never even hit the streets. Pulled the motor apart and there were already some shavings on the pan... that already is a reason not to reuse the oil pump. And the possibility of possible shavings in the pump is not worth it to reuse on a newly built motor.</TD></TR></TABLE>

too late i'm already committed lol. the shop i took it to for the crank swap would have told me if i had shavings, so i'm not trippin.

 

Typically anytime something bolted to the crank "lets go" such as the main pulley, flywheel, clutch pressure plate harmonics running through the crank damages the oil pump gears. So if your pump hasn't blown up yet the pump gears need to be magnflux to check for any minute stress cracks.

Cosworth Engineering

 

good lookin out. i'll get a new pump.

 

My friends oil pump blew up from vibrations. He had an unorthodox pulley. Instead of the pulley absorbing the vibrations. The oil pump gear exploded. Everything else checked out okay. Lucky for him!

 

Put the new crank pully on last nite...no damage to crank luckily and now everything runs good on the motor....

now i just gotta replace my pressure plate....it started messin up on last motor, not it's done...

luckily i got a couple of them at the house