Tranny whines??
- Thread starter Gmoney
- Start date
jwaller
Evil Genius/SyTy Guru
Re: Tranny whines??
1st question is are you sure it's the trans and if so how do you know. secondly if it is the trans and not something else it is most likely the pump. make sure you are full of fluid and then get a pressure gauge and check the pressure and make sure your not dropping pressure at the time it makes the noise. if you are then you either wanna not do what your doing or pull the trans and fix the problem.
1st question is are you sure it's the trans and if so how do you know. secondly if it is the trans and not something else it is most likely the pump. make sure you are full of fluid and then get a pressure gauge and check the pressure and make sure your not dropping pressure at the time it makes the noise. if you are then you either wanna not do what your doing or pull the trans and fix the problem.
George Blake
DONATING MEMBER
Re: Tranny whines??
What can happen sometimes is that if the converter isn't seated down onto the splines deep enough the hub won't engage the pump that well and can cause a "whine". The whine is from the rotor in the pump running slightly cocked to the bore due to the insufficient engagement.
Another cause can be a very large boost valve coupled with a heavy slide spring in the pump. This will cause the whine due to the occilation of the PR valve.
The converter itself can whine as well. Wear inside the converter causing components to run skew similar to the "rotor whine" deal above.
What can happen sometimes is that if the converter isn't seated down onto the splines deep enough the hub won't engage the pump that well and can cause a "whine". The whine is from the rotor in the pump running slightly cocked to the bore due to the insufficient engagement.
Another cause can be a very large boost valve coupled with a heavy slide spring in the pump. This will cause the whine due to the occilation of the PR valve.
The converter itself can whine as well. Wear inside the converter causing components to run skew similar to the "rotor whine" deal above.
Andreas
New member
Re: Tranny whines??
Jumping in in this thread, hope you dont mind Garin.
I've got simmilar sound.
I've got a buildt tranny.
I've followed Rossler transmission intructions on seating the converter. Was spot on when I bolted it up.
Should I even more "seat" the converter with another shim?
Is that OK? No damage following?
Jumping in in this thread, hope you dont mind Garin.
I've got simmilar sound.
I've got a buildt tranny.
George Blake said:
I've followed Rossler transmission intructions on seating the converter. Was spot on when I bolted it up.
Should I even more "seat" the converter with another shim?
George Blake said:
Is that OK? No damage following?
Z SKI
Donating Member
Re: Tranny whines??
I have a whine too. I thought it was coming from my trans. It comes on at about 2300-2800. I however found out then when on the freeway and i switch it into nuetral it goes away. But i can duplicate it by pressing on the gas and holding it at the said above RPM range. If its the TC it will be a good time for me to install the nice vigilante that i have sitting in the garage. See ya, Paul Z.
I have a whine too. I thought it was coming from my trans. It comes on at about 2300-2800. I however found out then when on the freeway and i switch it into nuetral it goes away. But i can duplicate it by pressing on the gas and holding it at the said above RPM range. If its the TC it will be a good time for me to install the nice vigilante that i have sitting in the garage. See ya, Paul Z.
George Blake
DONATING MEMBER
Re: Tranny whines??
Just any old converter won't take the pressure of a .570" boost valve. It tends to bend things inside. You have to go with a billet style converter or just put in a .500" boost valve.
Don't set the converter any further. That 1/8" is for expansion from heat and what little runout you may have in the converter/flywheel combination. If you set it any further, you'll damage the pump.
Just any old converter won't take the pressure of a .570" boost valve. It tends to bend things inside. You have to go with a billet style converter or just put in a .500" boost valve.
Don't set the converter any further. That 1/8" is for expansion from heat and what little runout you may have in the converter/flywheel combination. If you set it any further, you'll damage the pump.