Ever since I got a tranny rebuild and a used NON lockup converter I have had a clacking type noise under the car. It sounds like it could be coming from around the converter or exhaust. I read someone else posted something about the pressure in the tranny and converter? any ideas.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER, NO CAT
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
2:73 GEARS
Rebuilt 700R4, with manual valve body
B Megashifter, 5" Autometer Tach w/shift lite
Soon to be installed
3:73 Richmond Gears and 3" Hooker Aero Chamber
Corvette Servo & .500 boost valve
15.61@ 95.2mph G-Teched, 1-2 shift slippage
"There is nothing more addicting than speed"

 

'Sounds' like a cracked/loose flywheel.

On another note, did you just install the Non-Lock converter? This is not good. If you are on the street you should have L/U but if you use a Non L/U converter you need to replace the L/U apply valve in the pump with the TransGo special valve to prevent lube problems.

 

Well I am not too sure of the specifics, the guy who rebuilt my tranny told my Dad that he used I believe a hydraulic NON LU. About whether or not about the transgo part I am not sure. Also, the clacking used to come and go, but now seems to be there all the time. I am getting my car worked on in a few days, changing the gears, so I'll have the guy look the car over. Oh, could a cracked flywheel hurt my performance.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER, NO CAT
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
2:73 GEARS
Rebuilt 700R4, with manual valve body
B Megashifter, 5" Autometer Tach w/shift lite
Soon to be installed
3:73 Richmond Gears and 3" Hooker Aero Chamber
Corvette Servo & .500 boost valve
15.61@ 95.2mph G-Teched, 1-2 shift slippage
"There is nothing more addicting than speed"

 

A cracked flywheel could set off the knock sensor and that will affect performance but I would be more concerned about taking the tranny pump out.

 

My 87 SC Camaro is doing the same thing after i had my turbo 350 rebuilt, the noise used to be come and go but know its there all the time and some times it seem like if i have it at higher RPM it goes away and some time is i have it in gear it isn't as bad to so what could the problem be

 

I think I may have found the problem. I was under my car changing some spark plugs and noticed a metal sensor that connects to the headers. It is a little loose and when I move it with my hand makes the same sound that I hear, but I guess faster since the motor vibrates it.

------------------
'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER, NO CAT
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
2:73 GEARS
Rebuilt 700R4, with manual valve body
B&M Megashifter, 5" Autometer Tach w/shift lite
Soon to be installed
3:73 Richmond Gears and 3" Hooker Aero Chamber
Corvette Servo & .500 boost valve
15.61@ 95.2mph G-Teched, 1-2 shift slippage
"There is nothing more addicting than speed"