DareBee
08-19-2003, 11:26 AM
I am hoping someone can shed some light on my Tranny situation in my 2nd gen RX7.
My manual trans is currently making a ticking noise. I use the analogy of it sounds like the baseball card taped to the front forks of your bicycle with the card running on the spokes (come on we've all done it).
I had better start the story at the beginning.
A couple of months ago I was running my usual autocross series (This is about all the car (90 RX7 N/A) is used for). When I had a horrible 2 - 1 downshift; It just crunched in real nasty. That is when this tranny (A rebuilt 86 model) started to make the "card in the spokes" noise.
I figured I bent something a bit but wasnt going to quit.
2 runs later on one of my massive launches (about 7000 out of the hole with 15 feet of wheel spin to keep from bogging) just starting to hook up real nice and the tranny GRENADED!
Toss a grenade under your car and see how it feels!
I have now rebuilt my original tranny (new bearings, synchros, shift forks). Did Imention I am very fussy and I also have a lot of industrial mechanic experience (in my defense).
It has worked great! I put on about 80miles around the country side and then to my closest event. I was staging and noticed a very faint ticking from below and went out on my first run and immediatly upon starting the ticking got extremely loud.
EXACTLY LIKE LAST TIME (FOR F*$% SAKES)
I didnt race any more but I did drive the car home 60miles without incident.
Let me try to explain the ticking better
When the clutch is engaged and the tranny in neutral all i hear is the usual gear whine (at any RPM or duration).
When I speed up or slow down (reverse included) the ticking changes frequency relatively.
In first gear the ticking is very loud.
In the other gears it is very faint. I cant usually hear it over my very loud exhaust untill I am decellerating.
Again I will say that the ticking doest not exist when in nuetral bu tranny rotating.
The noise is also very distinctly coming from in front of me (sitting in seat).
Fresh rebuild and I didnt even crash the gears (yet). Does anybody have any idea what may be wrong.
I know I have to take it apart.
Very, very, very frusterated!
Thanks.
__________________
Cheers!
Derek
My manual trans is currently making a ticking noise. I use the analogy of it sounds like the baseball card taped to the front forks of your bicycle with the card running on the spokes (come on we've all done it).
I had better start the story at the beginning.
A couple of months ago I was running my usual autocross series (This is about all the car (90 RX7 N/A) is used for). When I had a horrible 2 - 1 downshift; It just crunched in real nasty. That is when this tranny (A rebuilt 86 model) started to make the "card in the spokes" noise.
I figured I bent something a bit but wasnt going to quit.
2 runs later on one of my massive launches (about 7000 out of the hole with 15 feet of wheel spin to keep from bogging) just starting to hook up real nice and the tranny GRENADED!
Toss a grenade under your car and see how it feels!
I have now rebuilt my original tranny (new bearings, synchros, shift forks). Did Imention I am very fussy and I also have a lot of industrial mechanic experience (in my defense).
It has worked great! I put on about 80miles around the country side and then to my closest event. I was staging and noticed a very faint ticking from below and went out on my first run and immediatly upon starting the ticking got extremely loud.
EXACTLY LIKE LAST TIME (FOR F*$% SAKES)
I didnt race any more but I did drive the car home 60miles without incident.
Let me try to explain the ticking better
When the clutch is engaged and the tranny in neutral all i hear is the usual gear whine (at any RPM or duration).
When I speed up or slow down (reverse included) the ticking changes frequency relatively.
In first gear the ticking is very loud.
In the other gears it is very faint. I cant usually hear it over my very loud exhaust untill I am decellerating.
Again I will say that the ticking doest not exist when in nuetral bu tranny rotating.
The noise is also very distinctly coming from in front of me (sitting in seat).
Fresh rebuild and I didnt even crash the gears (yet). Does anybody have any idea what may be wrong.
I know I have to take it apart.
Very, very, very frusterated!
Thanks.
__________________
Cheers!
Derek