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-   -   Clutch Chatter Problem (lightweight flywheel, centerforce dual frict clutch) (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/clutch-chatter-problem-lightweight-flywheel-centerforce-dual-frict-clutch-444436/)

wthdidusay82 07-18-05 10:39 AM

Clutch Chatter Problem (lightweight flywheel, centerforce dual frict clutch)
 
Ok when i press my clutch i can hear some kind of noise when i have the pedal down/engaged, it still drives fine but I dont know if this is normal since the clutch and lightweight flywheel are brand new and so is the engine(rebuilt)

Is it normal to hear some kind of noise like this on the clutch on clutch breakin ? I wouldnt know because i never had a new one

edit - I also havent driven the car much so i cant really say it drives 100% but it drives giving me no problems into gear, switches gears smoothly

Archangels 07-18-05 11:10 AM

To be honest, i dont think it sounds normal, i have an FD flywheel and a Centerforce clutch like yours.... but someone with more experience will come along and if i'm wrong, will correct me....

how loud is the noise?...

pshaw118 07-18-05 11:25 AM

I think I'm getting the same thing. I've been driving like that for a year with no problems.

10AEturboII 07-18-05 11:58 AM

I too am getting the same sort of sound. I thought it was clutch chatter, but I can hear the noise when driving slowly in first gear while giving it quick shots of throttle. I am thinking my noise must be a bad mount somewhere.

wthdidusay82 07-18-05 12:14 PM

im not sure what it is , i just want to know that its ok, someone told me it could be my throwout bearing is bad or something to do with it

i did replace it with a new mazda t/o bearing, but someone said it could just be a defective one , i am going to try to have someone look at it

wthdidusay82 07-18-05 12:16 PM


Originally Posted by Archangels
To be honest, i dont think it sounds normal, i have an FD flywheel and a Centerforce clutch like yours.... but someone with more experience will come along and if i'm wrong, will correct me....

how loud is the noise?...

the noise is not too loud but is definitely noticeable

i havent driven it enough to know what the problem really is, sometimes it seems liek it bogs down when i hold it down but i havent driven it enough to really know. Ive never even driven it before , driving it now is my first

wthdidusay82 07-18-05 11:53 PM

so is this normal ? or am i victim to a bad t/o bearing ? cuz it does seem like it may not be normal, it switches gears fine but when it comes to idling when its pressed/engaged it doesnt seem to idle solid

edit - it also seems like i have to be quick with the clutch and gas or the idle/driveability will suffer

i hope to have it looked at by someone who knows more than i do soon

jacobcartmill 07-19-05 12:39 AM

we'd need more details to be able to figure out your problem my friend...

is the noise CONSTANT or just when you push in the clutch or just when you let out the clutch?

wthdidusay82 07-19-05 12:44 AM


Originally Posted by jacobcartmill
we'd need more details to be able to figure out your problem my friend...

is the noise CONSTANT or just when you push in the clutch or just when you let out the clutch?

i havent driven the car enough to know precisely when its doing it but i can say when i do press it down is when the most noise is heard when it is engaged as far as letting off and when i first go on to press it i dont know, but i do know into gears it switches gears fine

ill try to get you more feedback once i fix some other probs my car is giving me so i can better give details on this

jacobcartmill 07-19-05 12:53 AM

just go out and start the car with it in neutral, then let off the clutch.
if the noise only happens when the clutch pedal is OUT (clutch engaged) its the throwout bearing.
if its all the time (clutch engaged or disengaged) then it may be the pilot bearing. did you replace the pilot bearing and the throwout bearing when you did this rebuild/clutch ?

wthdidusay82 07-19-05 01:16 AM


Originally Posted by jacobcartmill
just go out and start the car with it in neutral, then let off the clutch.
if the noise only happens when the clutch pedal is OUT (clutch engaged) its the throwout bearing.
if its all the time (clutch engaged or disengaged) then it may be the pilot bearing. did you replace the pilot bearing and the throwout bearing when you did this rebuild/clutch ?

kevin landers did the rebuild, i gave him a brand new pilot bearing to put in so i would think it is new and in there

it seems like it only happens when i have the clutch pedal pushed down all the way (this would be disengaged i think), i could ask kevin landers if he did replace the pilot bearing but i am pretty sure he did since he installed my flywheel and clutch for me when he rebuilt my engine

RETed 07-19-05 06:50 AM

How old is the clutch?
How much miles on the clutch?
What did you do to break in the clutch?


-Ted

wthdidusay82 07-19-05 09:12 AM


Originally Posted by RETed
How old is the clutch?
How much miles on the clutch?
What did you do to break in the clutch?


-Ted


clutch is brand new theres like 20 miles on it if that, im breaking it in the same way im breaking in the motor (engine is rebuillt) easy into gear , and going up to max of 4000-4500rpms and rarely do i press the gas all the way down. flywheel is also brand new with same mileage

Jager 07-19-05 09:39 AM

4,000 4,500 RPMs on a 20 mile rebuild...

That's not good my friend.

wthdidusay82 07-19-05 09:49 AM


Originally Posted by Jager
4,000 4,500 RPMs on a 20 mile rebuild...

That's not good my friend.

dude i barely gas it at all and ive been waiting for 9 months to drive the fuckin car, to be perfectly honest ive been wiating forever to drive it and i dont think 4000-4500 rpms will hurt it especially since i am barely taking it up to that

i am basically getting so sick of this car lately all it is causing me is problems, everything i do on it is WRONG lke it is cursed or something , maybe i should change my screename to RXHEX

i put over 2500 $ into this car and alongwith the price of the car $1000 and parts car $325 , im looking at a total of roughly $3800 dollars, my engine has a warranty on it too. Im not very experienced with rotary engines but i find im learning everything the hard way because I have NO HELP other than on here, which isnt much help when im the one working on the car and cant figure out certain things on here

kevin landers told me its fine to drive it to 4000rpm, i dont hit 4500 rpm purposely it just happened to go that high when i hit the gas a couple times its not like i am purposely doing it like i am tryin to beat on it

Im becoming very impatient with this car lately, it seems more and more people are telling me i am doing things i shouldnt be and it just makes me want to break things. I put over 100 hours of work and over 500 posts of research on here in the past 9 months since i got the car. It is finally running 5 days ago.

Jager 07-19-05 09:52 AM

Rebuilt Engine Start-up & Break-in Information
Specifically for Rotary Resurrection Rebuilds

Once a fresh rebuild is assembled and installed there are a couple of things to do before trying to make it run. Here is an outline, as well as breakin recommendations. These can apply to any rebuild, professional or self-built. It is also recommended to have a fuel cutoff switch installed(for 2gens) before trying to start a rebuild, as it will want to flood every time it is shut off.


1) Remove EGI fuses underhood (if working on a carbed or modified model disable fuel and spark to prevent starting)

2) Crank for 10 seconds at a time, once per minute, at least 3 times, to prime the oil system and build oil pressure before startup. You can usually see 20-30psi of oil pressure during cranking.

3) Inject some oil into the lower plug holes of each chamber to help build compression for startup. Fresh rebuilds with old housings are very low compression initially.

4) Make preparations to idle the engine up before startup. A rebuild will not even consider idling normally for the first few hours. Use the hard idle set screw(on throttle body by linkages, 8mm locknut with flathead setscrew inside, covered by factory jb weld) to adjust the throttle somewhat open at idle, a few turns are necessary. You want the rebuild to idle at around 1500rpm for the first day or more. IF you don't do this ahead of time, and you're by yourself, youll be stuck inside the car holding the gas instead of outside checking for leaks and such, and if you stop the engine it'll be hard to get started again.

5) A battery charger or external jump(another car) is sometimes helpful in starting a rebuild, as old or partially discharged batteries sometimes lack the strength to really kick over an engine and build enough compression to start. A strong charge is a must here.

6) Be prepared for smoke…there is assembly lube in the engine, which will be burned out in the form of smoke. Expect this to get into your exhaust and smoke can remain for up to 8 hours afterwards until it is all burned out slowly.

7) Be prepared to watch for leaks…oil lines, coolant hoses, gaskets, and other connections should be examined for leaks. Youll also want to keep an eye on the gauges…oil pressure, water temperature, voltage, etc.

8) Once it is running and youre satisfied everything is stable, set the idle to around 1500rpm and let it be. Since compression is constantly changing, there isn't much use in adjusting and readjusting idle and TPS settings until breakin is almost complete, as the settings will change almost daily. Right now, the more you can drive it, the better. It is very helpful for the first few days even to just let it idle in the driveway all day.

9) Breakin should be completed as follows.Keep rpms under 4000, oil changes at 500 and 2000 miles, and no boost above atmospheric(turbo models).

10) Great improvements in starting, idle quality and overall smoothness/power will begin occurring immediately, but most improvement will be reached by 1500 miles, at which time you can gradually increase rpm and boost. By the time the engine reaches 2000 miles, it is basically broken in and can be treated as you wish within reason.

From Kevin's site.

Jager 07-19-05 09:54 AM

Rpms are rpms either way.

Btw my new 302 crate motor and rebuilt tranny cost me around $3,800 to my door. I don't even have the rest of the shit for it yet ;).

But good luck and don't get bent outta shape over constructive criticism.

wthdidusay82 07-19-05 09:56 AM

goingabove 4000 rpm was not someting i did on purpose, its not like i went to 5000-7000

also when i first started it up the jackass i had helping me reved the piss out of it on its first startup right as it was starting up the very first time, you think im happy about this ? nothing i can do about it now, just like everything else it is all in the past

i can only hope my engine will be fine and good to last me some 50-100,000 miles

you have no idea how much work i have put into this car and doing it all myself pretty much with minimal help , it is very frustrating and makes me want to give up on it sometimes because i feel im only making things worse by trying

what i really need is someone who is professional that works on rotary to tune up my car for me but there is no one around here that specializes in it , and anyone that says they will work on it around here is going to charge the max price and probably take the max amount of time to figure out the problems since they prolly dont realy know much about rotary



Originally Posted by Jager
Rebuilt Engine Start-up & Break-in Information
Specifically for Rotary Resurrection Rebuilds

Once a fresh rebuild is assembled and installed there are a couple of things to do before trying to make it run. Here is an outline, as well as breakin recommendations. These can apply to any rebuild, professional or self-built. It is also recommended to have a fuel cutoff switch installed(for 2gens) before trying to start a rebuild, as it will want to flood every time it is shut off.


1) Remove EGI fuses underhood (if working on a carbed or modified model disable fuel and spark to prevent starting)

2) Crank for 10 seconds at a time, once per minute, at least 3 times, to prime the oil system and build oil pressure before startup. You can usually see 20-30psi of oil pressure during cranking.

3) Inject some oil into the lower plug holes of each chamber to help build compression for startup. Fresh rebuilds with old housings are very low compression initially.

4) Make preparations to idle the engine up before startup. A rebuild will not even consider idling normally for the first few hours. Use the hard idle set screw(on throttle body by linkages, 8mm locknut with flathead setscrew inside, covered by factory jb weld) to adjust the throttle somewhat open at idle, a few turns are necessary. You want the rebuild to idle at around 1500rpm for the first day or more. IF you don't do this ahead of time, and you're by yourself, youll be stuck inside the car holding the gas instead of outside checking for leaks and such, and if you stop the engine it'll be hard to get started again.

5) A battery charger or external jump(another car) is sometimes helpful in starting a rebuild, as old or partially discharged batteries sometimes lack the strength to really kick over an engine and build enough compression to start. A strong charge is a must here.

6) Be prepared for smoke…there is assembly lube in the engine, which will be burned out in the form of smoke. Expect this to get into your exhaust and smoke can remain for up to 8 hours afterwards until it is all burned out slowly.

7) Be prepared to watch for leaks…oil lines, coolant hoses, gaskets, and other connections should be examined for leaks. Youll also want to keep an eye on the gauges…oil pressure, water temperature, voltage, etc.

8) Once it is running and youre satisfied everything is stable, set the idle to around 1500rpm and let it be. Since compression is constantly changing, there isn't much use in adjusting and readjusting idle and TPS settings until breakin is almost complete, as the settings will change almost daily. Right now, the more you can drive it, the better. It is very helpful for the first few days even to just let it idle in the driveway all day.

9) Breakin should be completed as follows.Keep rpms under 4000, oil changes at 500 and 2000 miles, and no boost above atmospheric(turbo models).

10) Great improvements in starting, idle quality and overall smoothness/power will begin occurring immediately, but most improvement will be reached by 1500 miles, at which time you can gradually increase rpm and boost. By the time the engine reaches 2000 miles, it is basically broken in and can be treated as you wish within reason.

From Kevin's site.


Jager 07-19-05 10:04 AM

Have you checked the regional (I can't spell right now) to see if anything is in your area? I'm sure someone would be willing to stop buy for a beer and help you out.

Sorry to hear about the revving jackass.

wthdidusay82 07-19-05 10:11 AM


Originally Posted by Jager
Have you checked the regional (I can't spell right now) to see if anything is in your area? I'm sure someone would be willing to stop buy for a beer and help you out.

Sorry to hear about the revving jackass.

yeah wish me luck , i hope my car will be ok and fixed soon it is really having me stressed out lately i been posting like 25 -40 posts a day on here lately trying to figure the thing out


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