So, figured out the ignition module problem....and today....beltdown. Battery light comes on....WP belt, alternator belts...buh-bye. So, how do they ALL fail at once. This ought to be fun....
One belt usally fails and then pulls the others off and destroys them too as it departs the engine. Whats the damage like?
So far....the belts are the only casualties. However, there was a good spot of coolant which appeared when I pulled into the garage...but stopped when I shut the engine off. Water pump as a collateral victim, maybe?
It looks like that was the source of the problem....the belts are REALLY burned and isn't the water pump supposed to turn freely? ....wait, scratch that....the water pump seems fine.... Nothin' left to do but smile, smile, smile and pull out the checkbook.
The belts could be burned from any component seizing (e.g. waterpump), but they could also burn up if they were too loose. Did you hear any belt squeals in your normal driving, at startup, or just before the failure? Ask the gurus to be sure, but offhand I'd say pay the $15 each for some new accessory belts (take the old ones to NAPA and get similar width, diameter, height, shape, and teeth or lack thereof) for a quick test. Pick up a Kricket belt tensiometer while you're at NAPA (~~ $8) so that you can get the right tension. Reinstall (shouldn't take much time or much more than a wrench). Check your coolant level. Check your oil (for the level and for water contamination). Then see if you can start the engine to check for a coolant leak (hopefully not one).
Gotta get past college football Saturday...and a house full of guests. Oh...and a floor jack....and stands...and this pesky hangover. Thanks for the info.
Started making plan to change out the belts and find the coolant leak. Belts look challenging, but straigtforward. Had my brother try to spot the leak. After running for 2-3 minutes....heard a cyclic rattling on the passenger side of the engine...then, the distinct smell of coolant coming from the exhaust. Last time this happened was in my Volvo....and it wasn't good.
Found out why the belts failed.....the bolt holding this baby came off allowing it to slide on the shaft and misalign. Good thing all the belts didn't totally fail, it would have been ugly having it come fully off. What is the technical name? Belt drive??? Does anyone know the bolt size to re-attach this to the shaft? Image Unavailable, Please Login
that's your harmonic dampner, i'd check your crank snout and see what if any damage has been done. for the dampner to come loose or off, you are so lucky it didn't go flinging around the engine bay! dodged a big bullet there! the bolt is fairly large, i just replaced mine with a mechanicle unit, so my bolt is not longer needed. if it will fit your engine your welcome to it. 308? 328?
Harmonic dampner.... Good to know the name of what could have been a really bad thing. I've spent most of the afternoon realizing how lucky I am it didn't come off....I can't imagine what something like that might do to a vehicle/person behind me. Not to mention how the engine bay would suffer. It's off a 328....same size bolt? Also what is a mechanicle unit? Thank you!!
in doing the supercharger project i had to change the dampner as it has now way of adding another pulley. nick forza has custom made dampners that are mechanical in nature. instead of an elasotmeric strip it has an internal inertia ring made of metal that rides against a brake type of rough surface. spring loaded to keep in constant tension. here's a pic. i'll see if the bolt's the same, if so i'll send you mine. Image Unavailable, Please Login
WOW....that is a good looking engine, and supercharged to boot. Very cool. Wolf said the bolt size is 18 x 1.5 Thanks again
Been searching threads on replacing the belts. This looks like some fun. Just taking my time and looking at things and when I replace the dampner on the crank...the alignment with each component (WP, ALT, A/C) looks off. So the belts would not be straight. Also, I would just think the end of the crank would be flush with the inside of the dampner, so when bolted on the crank it would be flush. Hmmmm. Image Unavailable, Please Login
i assume you still have the key from the crank. did the bolt just loosen up and fall out or did it shear? i can't tell if the threaded hole on the crank is clear or is holding a broken peice of bolt. on the crank just inside the lower timing cover is the gear drive for the lower pulleys, it tends to push out when the crank is rotated and the crank pressure builds against it. this will keep the dampner from going flush to its stop. i'll dig up a diagram for you.
Is the woodruff key still in the crank? That balancer should slip straight on flush alright. Slip the balancer back off(should come on and off easily) and make sure the woodruff key is in its place properly in the crank. If its not, then it wont let the balancer back on properly. Also, why did the bolt fall out? When you torque/tighten them up, they shouldnt come out normally.......even without the use of loctite ect...
Just curious......would that crank sprocket move out far enough to come off the keyway, with the timing cover in front of it? It hard to imagine it moving too far forward to slip off the key way as the cover would stop that?
Ty, it could have been worse...here's Rob's thread of a similar experience: http://www.ferrarichat.com/forum/showthread.php?t=3685&highlight=328+crank+pulley Carl
it'll only push out a few mm as the timing cover stops it from coming out. i'm wrong it's not crank pressure but the angle of the gear that slips it out. brain fart there
Well ya'll...I just can't keep thinking how bad this could have been. The only thing holding the dampner on the crank was a badly burned waterpump belt. I got the dampner flush with the crank and everything looks aligned now. Scott, you were right, the gear drive had come out a few mm. The wooddruff key stayed in place and the bolt just came out...no shear or thread damage. Thank goodness.... I'm just trying to take my time and not force anything. I've broken many a thing by just pushing a little to hard. Thanks ya'll for the diagrams/info...I've got so much stuff here at the house, it's overwhelming to try to sort thorough the info and glean what I need. Pap, I haven't even run a full tank of gas through her, she's that new to me. I can't figure out how the bolt came off if it was assembled/torqued correctly either. Ferrari of Denver did the last major in October of 03'. Just need to score the belts, bolt/washer and figure out how to get the compressor belt on....blood sacrifice, I'm sure. Thanks again.
Hey guys, this may be obvious, but item #22 is IMPORTANT, and likely somewhere on the road. Without this large washer the bolt will bottom before applying clamping force to the dampener. At least this is how it works on the Dino. Jim S.
Very obvious mate. Id get a new bolt, a new washer(anyone know the correct thickness of that washer. Id guess around 3 or 4mm.) I would also put a few small drops of loctite 222 on the thread of the new bolt when he re-assembles it to prevent a repeat performance.
