Thread: gtp s/c rotor swap HELP

Alrigh, so I've got the car apart and I've go the snout off and the rotors loose, but I can't seem to pull them out because of the damn alternator mount in front of it.... HOW IN THE HELL DO I GET THESE THINGS OUT?! Somebody, anybody HELP ME PLEASE. Hit me up in PM, or on AIM: CykoDrivesaWBody... I'm on right now.

See if you can't pop the coupler off of the drive. If you can, then you should be able to pull the snout straight up, and slide the rotors out. Otherwise you will surely not be able to slide the rotors / snout off together without hitting anything. I have never swapped rotors with the s/c on the car, but I would think this would work.

Otherwise, you could have removed the alt. bracket in the time it took to make this post. Good luck.

I got the new rotors in, after much frustration and a lotta cleaning up coolant, but the car still makes the rattling/hitting sound when I hit high RPM or when I'm pushing too much at a shift point... is there something I'm overlooking? It's got fresh oil, and two full bottles of it, all the seals seem to be holding just fine (red RTV) and the new rotors looked/felt alright going in... what could my problem be? Could I have flat out spun a bearing in the block or something? The sound is almost definitely coming from the driver's side of the motor, and the s/c housing looked alright, the brief moments I took to look into it while I had the rotors out. Are there supposed to be bearings on the pegs at the backside of the impellers or something? The old set came out looking EXACTLY like the new set before I put it in... Here's what the old ones look like... maybe that'll give some insight?

Originally Posted by Sabrewings

You sure it's coming from the SC and not the front of the engine itself (I'm thinking timing chain damper)?

good point...how many miles on the car???

130kish... see, you know how you get the normal chatter/rattle from the s/c assembly at idle? That sound seems to go away whenever this other noise starts... how would I check for timing belt damper?

Originally Posted by Cyko

130kish... see, you know how you get the normal chatter/rattle from the s/c assembly at idle? That sound seems to go away whenever this other noise starts... how would I check for timing belt damper?

just take the timing chain cover off...more complicated than that...maybe someone else can fill u in since i have never done one...milage sonds about right for the dAmpner though

That would be great... any takers? Also, how would one go about REPLACING the Dampener, and do we have a price range?

hmmm...couldnt find the dampner...figured it would come with anew chain...but it didnt look like it...i would change the chain and sprockets too if that the problem...the chain set is 120.00

I was looking at a writeup on a random webpage, and this looks like it's gonna suck... What're the chances that it's NOT the timing dampener, as the front of the motor's on the OPPOSITE side of the throttle body (which seems to be the source...

I'm wondering if it's something as simple as I torqued it too hard and ovalled out one of the holes that the s/c impeller pegs sit in, and that's moving?

Some guy on ebay... I bought/installed it back in February I think, and I've never seemed to have any problems with it.

Just for reference....this is what a knocking rod sounds like.
YouTube - 97 KenneBell Cobra - 4 valve suffering rod knock..

There's a trick that comes in extremely handy for finding engine noise.
Get you a dowel rod from wal mart, or a hobby store....sand one end so that it has a bullet shaped tip, and use that to find your noise. You can put it to the side of your head over your ear, not IN your ear, and then cup your hand over that. If the rotors are knocking, you will hear it...if it's somewhere else on the engine, you could find it that way.

I'm not sure if you had taken the main belt off as well...but if you are sure it's coming from the driver's side then it may not be the pulley system. It could be a cracked flexplate.

Cracked Flexplate Video

If this is the case....you're gonna need minor surgery. The engine...or the transmission will have to come out to replace this.

Originally Posted by GR8racingfool

Until now.

~F~

GR8, still makes the noise without the snout having a belt on it...


Rep, it DOES sound more like the first video, but no where NEAR as bad... the second is just completely different, I can barely hear it from inside the car, unless I'm at a high RPM. I'm currently on vacation on the gulf coast of Florida, but when I get home I'll make a quick video and let you guys hear the issue. I can't figure it out, and now it's just about getting it to a good shop to have someone charge me out the @ss to tell me something small is wrong and they replaced it, as well as 4 other "notquitebrokenbutwillbeinthenext100thousandmi les" parts that I didn't need. We'll see what happens.

Alright SS... IF that were the case and I spun a bearing.... am I still in the same boat financially? Cheaper to get a whole new engine, rather than tear the heads off and pull the block apart to get to/replace that one bearing?