lsd warning?

[genius]

Only thing I can think of re: the banging of pipes sound is that the tranny mount for the exhaust on aftermarket exhausts wasn't replaced - pic of where it should be. with stock motor mounts or softer aftermarket mounts there will be a lot of movement at this spot and it might more around that much.

Plus, if it's not attached here all the flex is being absorbed by the exhaust manifold / turbo manifold which could be a reason for cracked manifolds... Check this anyhow, and if you don't have a bracket/support there, go get one put in.
pic of bracket

Another banging of the pipes could also be your hardpipes hitting the Master Brake Cylinder. A lot of people have associated it with clutch chatter.

 

[wicked]

very true,this problem was run into when we made the turbohoses hardpipes.a lot of people weren't adjusting them right,and they were hitting.

Another banging of the pipes could also be your hardpipes hitting the Master Brake Cylinder. A lot of people have associated it with clutch chatter.

 

[TX Speed Demon]

you guys figure anything out?

I still haven't replaced my rear motor mount, but last weekend I replaced my transmission fluid. Since then I haven't been able to duplicate the sound at all. Before changing the fluid I could do it anytime I shifted into first if I tried.

I honestly didn't think this would do anything for the previously mentioned problem. But I'm at 47K miles on the stock fluid and a friend of mine just blew the transmission (every gear) of his MSP due to low fluid. So I figured it was time to get some new stuff in there. I used Mobile 1 snythetic 75W90, 2.8 quarts (was 8$ a qt at Autozone). I should have, but didn't measure how much of the old stuff came out of the tranny.

Like I said, I have not been able to duplicate the banging noise since changing the fluid. It could be coincidence. It could be I was low on fluid and somehow that made the noise inside the tranny. Could be the synthetic fluid makes smoother engagement which leads to less vibration so the sound just doesn't happen now. I don't know, but it's worth checking out, especially if you're still running the stock fluid.

BTW, the two bolts (under and in front) on the tranny are 23mm. And if you use a funnel with a long hose you can put the hose in the front hole and fill it with fluid from the engine compartment. Takes a while for gravity to get all the oil in there though.

Only thing I can think of re: the banging of pipes sound is that the tranny mount for the exhaust on aftermarket exhausts wasn't replaced - pic of where it should be. with stock motor mounts or softer aftermarket mounts there will be a lot of movement at this spot and it might more around that much.

Plus, if it's not attached here all the flex is being absorbed by the exhaust manifold / turbo manifold which could be a reason for cracked manifolds... Check this anyhow, and if you don't have a bracket/support there, go get one put in.
pic of bracket

Yeah that bracket broke when I had the stock exhaust in. My Apex one is much lighter, with a flex hose section, and with tighter exhaust hangers too. I also bent the hangers welded onto the car to hold the kartboy hangers tighter, now there's very little movement there at all. All this was done a few months ago and the car still had the problem. I did check underneath the car too. Initially I thought it was the exhaust hitting the crossmember or the undercarriage. I checked it all out but couldn't find any scratches or dents, and padded the crossmember just in case.

Still had the problem.

Another banging of the pipes could also be your hardpipes hitting the Master Brake Cylinder. A lot of people have associated it with clutch chatter.

This isn't it. I've had that issue previously when I first installed my highboost fmic last year. I fixed it, but just to be sure I also padded this area.

Still had the problem.

 

[spacemonkey]

im sure there are threads about this somewhere, but im wondering this too. idk if this would be a warning bu when i start off from a dead stop (just going normal) my car will shake like crazy and vibrate everything in the car because of the shaking...?

that just sounds like minor wheel hop or what the drift king calls "tranny chatter"

it happens to be on cold nights. its probally my fault for just replacing the frount mounts and not the back or sides. I ordered side so the engine shouldnt move that much.

as for the LSD I drive the crap out of my car (turning wise) and do delivery in it. I also Autoexe about once a month.

No problem here...I baby it on launch and try not to wheel hop. I dont do drag racing or any kind of racing that would require a hard launch. Hard launch when not done right = massive wheel hop.

I really dont know what causes it. There are some people pushing close to 300 whp on stock LSD like Fastlane. And there are people who have their LSD crap out at 10K. :dunno:

We shall see because my car is approaching the 36K mark with not much problem at all. Just the radio craped out once.

I saved up for a Quaife once but the LSD never gave out so I spent that money. If it does give out im going to buy a quife and see if the dealer would install it under warrenty. Im buying the dman LSD they just have to put it in for me.

 

[UnNaturalinc]

I thought that Mazdaspeed was a racing division of Mazda. I think it goes something like this. Mazdaspeed is Mazda's in-house race and street car tuning arm and is highly involved in both amateur and professional motorsports.


Hmmmm, I think I saw racing in threre. (scratch)

It's a Protege with some bolt on parts done to it. Factory upgraded model, not a race car.

No one professionally races with "Mazdaspeed" factory branded cars.

 

[spacemonkey]

yeah its like no one actually races a "Nismo 350Z."

Theres "Mazdaspeed" or in Europe its known as MPS (Mazda Perfomance Series) for factory cars. And theirs "mazdaspeed" race division or "Mazda motorsport." There you will find race spec parts from AWR and Mazda...but you have to prove to them you race your cars in major racing events.

 

[UnNaturalinc]

yeah its like no one actually races a "Nismo 350Z."

Theres "Mazdaspeed" or in Europe its known as MPS (Mazda Perfomance Series) for factory cars. And theirs "mazdaspeed" race division or "Mazda motorsport." There you will find race spec parts from AWR and Mazda...but you have to prove to them you race your cars in major racing events.

MPS is also in Japan. The MPS Protege made like 185hp all motor IIRC.

That's Mazda Competition you are speaking of. I think they are known as Mazda Motorsports and/or Mazdaspeed Motorsports now (since the Mazdaspeed name was released in the US). That program they have is to give discounts to legit racers (not necessarily professional racers SCCA even works). But the stuff they have is nothing special, it's more a price thing. They award money for winners (contingency) depending on the program.

Those guys are pretty cool too.

 

[Kelon32]

My LSD broke on my way across country. I got to the exit that my new place was on and put the car in first gear and all I got was a grinding sound. The dealer replaced the unit with an "updated" part that Mazda released because of the issues that everyone is having with the old ones. When I went to do an alignment on my car at the shop that I work at I was hanging the alignment heads on her and happened to spin the front wheel and noticed that they did not spin together. This is close to a month after the initial repairs had been made and I ran the crappiest autocross ever (I thought it was the tires at first). Took it back to the dealer where it is now and they are having a problem with Mazda directly getting them to tell the techinician what exactly they changed on the car. If they replaced my stock LSD with an open diff there are going to be major problems. If YOU have had your LSD replaced at the dealer and have been noticing less front end grip I would highly recommend that you lift up both front tires of your car and spin the front wheels with the transmission in nuetral. If they do not spin the same direction at the same speed then you got screwed too. If Mazda has decided that the Mazdaspeed Protege does not need an LSD then I have decided that they need to buy the car back. (gun)

 

[AuburnMSPfreak]

i had the pop grind thing as well and Mazda said that my clutch was ******, then after about a day, the time in which they replaced the clutch, they called and said that the diff was ****** up as well but it was covered under warranty. now i am thinking that they told me that the clutch was ****** and it was really the LSD, they just wanted to charge me 900 dollars. So what do you guys think ab this? its kinda making me mad. If that is the case, and i can prove it, i will **** these bitches up!

 

[stevesMSP]

If you're beating the s*** out of your car, that's your warning sign. These cars weren't made for racing.

your no fun

 

[sweetlou69]

ya they pretty much just go instantly.. ull hear a grind, feel the gears slip and then game over.. def sucks

 

[msp35]

I guess looking back I started to notice a faint grinding feeling @ the very end of the clutch pedal. On occasion I could also BARELY hear the what I thought coincided with the feeling. Then again maybe my clutch was worn too. Althoug it never slipped.

 

[miss_steele_msp]

i had the pop grind thing as well and Mazda said that my clutch was ******, then after about a day, the time in which they replaced the clutch, they called and said that the diff was ****** up as well but it was covered under warranty. now i am thinking that they told me that the clutch was ****** and it was really the LSD, they just wanted to charge me 900 dollars. So what do you guys think ab this? its kinda making me mad. If that is the case, and i can prove it, i will **** these bitches up!

Yup they just wanted you to pay 900. I told the dealer it was my lsd. They insisted it was my clutch they said they would cover the lsd under warranty only if I let them fix my clutch, which was still in great condition. I called Mazda on them and they refused to service my car at all, so I had to take it to another speed dealer 2 hours away.

 

[GreySpeed]

Exact same thing happened to me, dealer insisted it was the clutch even before they put the car on the lift, I saw right through their BS, they pulled out the diff and it was done. FU Mazda.

 

[miss_steele_msp]

Exact same thing happened to me, dealer insisted it was the clutch even before they put the car on the lift, I saw right through their BS, they pulled out the diff and it was done. FU Mazda.

That is exactly how I feel about mazda now too. I will never buy another mazda again.

 

[orng1]

Dealers suck, I used to work for a dealer and when we would right the repair order we would add 1hr diag even if it would be covered under warranty that way if it was something the customer caused they would have already agreed to pay that amount. They sucked the big one, and mazda seems to be just as bad as they void the warranty for almost anything. I'm really surprized that a lot of you guys are getting it covered.

 

[spacemonkey]

54,000 miles and problem free. So far im very happy with my MSP and especially the LSD for not caping out on me. im begining to think it is the way you drive your car.

Warrenty is up so I guess it doesnt matter what the dealer says because I'll be paying for it. So far the only time I been back to the dealer is for the reflash.

 

[msp35]

54,000 miles and problem free. So far im very happy with my MSP and especially the LSD for not caping out on me. im begining to think it is the way you drive your car.

So your saying that: going straight in 1st gear @ 3000 rpms and punching it is bad driving. IMO Mazda put a piece of s*** lsd in the car and never owned up to it, thus the revision(s). Yours will break if not while you own it, it will on the next owner. Tis only a matter of time.

 

[BOOSTR]

No one knows for certain. I'm guilty of punching it on occassion. Uneven surfaces and corners can be more detrimental to it than straightaways I believe. Having killed a few cars in my day, I have no doubt that driving style plays a huge factor in the equation. But sometimes mechanical things simply fail without reason or warning.

 

[spacemonkey]

So your saying that: going straight in 1st gear @ 3000 rpms and punching it is bad driving. IMO Mazda put a piece of s*** lsd in the car and never owned up to it, thus the revision(s). Yours will break if not while you own it, it will on the next owner. Tis only a matter of time.

I would say your not telling the truth and you probally brought it to the drag strip a couple times. Had a bad launch with a killer wheel hop and toasted your LSD.

or at a light you "accidently" got pedal happy and gave your car a good dose of wheel hop.

You see thats the main difference...when I race my car I dont try to get the best possible launch or "hook" the car. I ease into it. Of course I dont really drag race my car either. I do drive conservatively when im not on the track. No need to be a hero and shoot off every light and corner to prove something.


You tell me why there are cars with alot more milage then me on the SAME original LSD?


um still no break :dunno:

BTW I am a delivery driver and I autocross my car with MArtin Motorsport and SCCA. I also been to Seabring and Gainesville to participate in road racing events.

I say the LSD held up pretty well and gave me a 3rd place finish in my class.

BTW it hasnt been a huge problem in Orlando either. And I assume we have quite a bit of MSP here too from what I noticed in the past. I know a couple tech at one of the two only Mazda dealerships in town. They havent done much LSD replacement. I cant maybe think of one. A certain yellow one who the driver drives like a maniac. His MSP has been in few times Actually. Threw a bearing, fried a piston ring, LSD and something with tranny.