I just started to notice a rubbing noise when I take a hard corner. (from the driveshaft tunnel) It seem to be coming from the trans or the drive shaft. I haven't looked at the ppf yet but I have done some searching on the forum and thought this may be my problem. Is the PPF made of steel?(that is a stupid question) Also is it easy to remove? Do I need to have a jack to hold up the tranny when I do? I want to get the problem fixed asap. I am also thinking of getting a rear diff brace when I get my problem fixed. Any feedback would be great.

Thanks
Scott

 

Well jack up the car and have a look at the PPF. Im not shur what it is but if its broken im shur you could tell.

PS what is PPF?

 

Is there a thread you haven't posted in recently?!? Sheee-it.

A PPF is someone who can't keep from posting in a thread even though they have no clue what they're talking about, no real information to share, and couldn't spell it correctly if they did.

 

Wow, those are some real nice words you used. Regardless of my spelling tallent, and the fact that i have posted in many threads. What is your point.

Your right tho, im posting in this thread because i would like to know what the PPF is. And correct me if im wrong, jack up the car and look, you will see whats wrong.

Sorry about the spelling, thats what you get with the phonics(spelt wrong im shur) system.

 

Learn about your car...... By a FSM.... visit the sites that our posted for the nOObs.

Power Plant Frame
http://www.rx7.com/cgi-local/3catalog.cgi?cat=2&part=7

And JimLabs right..... why post some bs when you don't even have a clue what something is?

Jonesie -

 

First off, sorry for not knowing my abriviations. And thank you for letting me know what it is. Thats all i wanted to know.

Second, its not bs. Just because i dont know what it is does not make what i post bs.

 

My point is, you don't know what you're talking about, so you state the perfectly obvious (great advice like "jack the car up and look"), and then ask what it is he's talking about. How do you even know that he'd be able to see damage to the PPF by jacking the car up when you don't even know what a PPF is?!?

If you just wanted to know what a PPF is (powerplant frame, a rigid brace which connects the transmission to the differential), why didn't you just ask and leave it at that? Why do you have to post some inane or useless comment in every thread you read?

We've already got a dingbat that does this in the lounge. Her name is Christi, and she can't resist posting in every thread she sees, even if she doesn't have anything to say, and her grammar and spelling are as bad as yours. DON'T be another Christi... we don't need one in the 3rd gen. forum too.

 

Jack the car up on the by the diff. (please use jackstands). Examine where the ends of the PPF meets the differential as this is the typical cracking zone. Examine the interior portion of it by looking at it from the right side of the car, as well.

 

Scott, the first thing you should do is check the fasteners on the back of the transmission and front of the differential to make sure that they're torqued properly. If any work has been done on the car in the past and the PPF was removed, it's possible that they've worked themselves loose over time and are allowing excessive movement.

Second, if you have a high mileage car, it's possible that your differential bushings are shot, allowing excessive movement of the differential, PPF, and to some extent, the transmission. If your shifter jumps up and down when you jump on the gas and get back off quickly, it's a good bet that you've got bad bushings in the rear of the car at the very least.

As for cracks, you may or may not be able to see them while the PPF is on the car. The driveshaft is tucked into the passenger's side and makes it difficult to inspect the inner surface. Removing it isn't a problem, you just need access to all the fasteners, and you'll need to support the front of the differential and rear of the transmission with a jack or jack stands when it is removed. When you replace it, make sure you torque the nuts properly and use loc-tite on the threads.

Hope that helps.

 

Don't forget to check your trailing arms!

 

and change your oil while you are down there.

89Turbo944:
Jim is right in what he is saying. Please refrain from posting about things you dont know. Just read and learn. It's actualty surprising that you own all the cars in your sig and dont know to much... that is not a crime in itself, but just surprising in general.

Jim, I know its hard, but please be easy on this one. The "boss" has been bustin' ***** lately about warning people.

Lets keep this thread topical and not turn it into a flame zone please.

 

I took mine out this weekend for my clutch job and it looked FLAWLESS....like brand spanking new. I can't even imagine this thing cracking (though I've seen pictures of others' cracked frames). But I agree with Jim (always), check the nuts & bolt to make sure they're nice and tight (>100 ft-lb).

 

Does anyone have a pic of a reinforced stock PPF. When I take it off I will probably have it strengthened. I have a friend who is an awesome welder. I don't get any clunking noises from the rearend just that annoying rubbing sound. Thanks for all of the help I will let you guys know what happened to it. Also just a thought, could it bend and not break? Anyone ever heard of that happening?

 

Jim: did you catch that this kid is 18-19 and has a 2004 AMG SL55 along with the other cars listed?
fdeeznuts:
mazdaspeed makes a reinforced PPF. http://66.216.67.51/product.asp?3=238

 

yup im 19, and yep i dow own all those cars. Im also an apprentice at Mercedes Benz in North Vancouver Canada, your welcome to come by and have a look for your self.

1989 Porsche 944 turbo was given to me by my father, RX3 bought for 1000 but dosent run, turbo II, bought fot 1200 blown apex seals, bought the 1996 RX7 R2 for 18500 CDN(own money), and SL55 is my company car.

But you are right, i don not have a large knowledge on rotary engines. My knoledge is based on piston powered engines. The reason i posted was to state the obvious, seeing as that it is under the car, then you would jack up and look. Also, i was not fimilair with the term PPF. But now i am. Thank you for explaning.

 

So why are you listing it as your own? Did you drive one into the service bay once and decide to add it to your list?

You've got a wonderful penchant for stating the obvious. I'm especially impressed with how you came forward with a definition for "wastegate" in another thread, two days after the question was answered by other members. Keep up the good work.

 

No, i decided that because i drive it on a dayly basis i would add it to my list of cars that i drive.

And by company car i mean that it still belongs to the company but i am the sol operator of the car. Meaning i take it home after work, it is mine to be driven by me.

I did not know that it was a crime to state the obvious, and regardless of if the question was answered, i wanted th have the dictonary deffinition of waste gate. So earlier you tell me not to poste if its usless dribble and now you tell me because i posted useful information that im of no use. I contribute what i can if you dont like it to bad.

 

The Mercedes dealer lets a 19 year old kid drive an SL55 as a daily driver -- a 500 bph car that lists for about $114k and they are only importing 1000 units to North America this year. Is your dad the owner of the dealership?

Give us a break.

BTW, it's nice to try to help people on the forum, but if you have absolutely no idea what you are talking about, there's really no need to post anything. You are allowed to just read posts and learn things without posting in every thread.

 

Ok well i will no longer post things that have no useflu information. So that ends that.

And my father is the service manager at mecedes, so yes i do get perks. If you came from where i live you would understand. Im West Vancouver you will not see anything without the AMG badge on it. 3 other technicians drive AMG vehicles. Its not a rare thing. And there are no set number of Sl's bing imported, the AMG vehicles are on order basis only. You get what you order.

The US on the other hand has a limited number that are alowed to be shiped there.

 

Maybe you should use the dictionary for other purposes then defining a wastegate as well.

 

closing this.

 

i have one off reinforced judge ito spec PPF that even i couldn't break

anyway don't hop and it won't crack but it is pretty weak. diff brace and trans brace helps tremendously!

 

For those of you who helped, thanks