need help Problem with RX7 FD Noise in 1,2,3 gear !
#1
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need help Problem with RX7 FD Noise in 1,2,3 gear !
Hi guys,
i have a problem with my RX7 FD,
it makes a scratching noise in the first 3 gears when you shift in 4th its gone ,
the noise is only there when you put you foot on the trottle,
also when you put in the clutch its gone, so it must be in the gearbox ?
the noise sounds like a bad diff but it isnt, the diff,
maybe it is a bearing in the box but why doesnt, make it this noise in the 4th ?
maybe somebody can help me thank you,
i have a problem with my RX7 FD,
it makes a scratching noise in the first 3 gears when you shift in 4th its gone ,
the noise is only there when you put you foot on the trottle,
also when you put in the clutch its gone, so it must be in the gearbox ?
the noise sounds like a bad diff but it isnt, the diff,
maybe it is a bearing in the box but why doesnt, make it this noise in the 4th ?
maybe somebody can help me thank you,
#3
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iTrader: (7)
I agree. It could also be a chipped gear on one of the drive gears, which becomes unloaded when you're in 4th gear.
Either way the easiest solution is to find a good used transmission. I've rebuilt 3rd gen transmissions and it can be done, but usually excessively expensive.
Either way the easiest solution is to find a good used transmission. I've rebuilt 3rd gen transmissions and it can be done, but usually excessively expensive.
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Hi guys,
thanks for the help,
the noise is also gone in 5th gear or is that on a other axle in the gearbox like some other cars ?
thanks a lot
thanks for the help,
the noise is also gone in 5th gear or is that on a other axle in the gearbox like some other cars ?
thanks a lot
#6
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iTrader: (7)
Synchros are inactive once you're in a gear. They are just clutches that cushion the instant you push the shifter into a new gear. I don't think it's a synchro.
5th gear uses the same countershaft as 1st-3rd. The only difference is 5th is outside the main gear housing with reverse. If this is a bearing issue, this might agree with hearing noise only in 1-3 because 5th will apply loads differently to the bearings.
Regardless whether you have a bearing or gear problem, the cost for parts begins at several hundred dollars. Add labor. For about the same price and a lot less hassle you can install a used transmission with low mileage. I would focus on finding a good used transmission.
David
5th gear uses the same countershaft as 1st-3rd. The only difference is 5th is outside the main gear housing with reverse. If this is a bearing issue, this might agree with hearing noise only in 1-3 because 5th will apply loads differently to the bearings.
Regardless whether you have a bearing or gear problem, the cost for parts begins at several hundred dollars. Add labor. For about the same price and a lot less hassle you can install a used transmission with low mileage. I would focus on finding a good used transmission.
David
Last edited by dgeesaman; 01-22-10 at 04:54 PM.
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Hi guys,
no the synchro,s are definatly fine it shift well,
thanks for the help and i agree with degeesaman a used gearbox will be better because i also think it is a bearing,
many thanks
no the synchro,s are definatly fine it shift well,
thanks for the help and i agree with degeesaman a used gearbox will be better because i also think it is a bearing,
many thanks
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