C-4 Transmission Problems

[Smitty]

Originally Posted by Bill Harris

You should have at least an 1/8th of an inch of gap between the flexplate and the converter drive lugs when the trans is bolted to the engine. You should be able to spin the converter freely after the trans is bolted to the block but before you install the flywheel/converter bolts.

On the transbrake solenoid issue, just disconnecting the electrical switch might not make any difference. Is the solenoid external, mounting where the original modulator was? If so, you need to make sure that the valve that the solenoid activates is installed properly, not backwards, and moves freely. Is there supposed to be a spring on that valve? Is it there and installed correctly? Is the solenoid installed to the proper depth?

I will check the clearance on the convertor and flexplate; the convertor was spinning freely after everything was installed, no dragging. The brake does have an external solenoid however this was never removed and it was all working fine prior to me removing the engine. The original B&M switch was wired through a Dedenbar RTD-6 Delay Box, I have since removed the delay box and ran a wore of the main solenoid for my starter to one side of the switch and the wire from the solenoid on the brake to the opposite side of the new transbrake switch.

[Mike Pearson]

Smitty,

I would put the button back on that you were using when the trans was working right. I have tried some different types of switches. If they dont realease clean it will cause the brake to act up. Did you say you are using a harrington switch. They have only a little movement until it activtes the brake. I have used this type of switch before with good results. I have a terminator button now. Jay Slane still uses the harrington switch with good results. Check your switch with an ohm meter and a volt meter to see if it is realeasing cleanly. Hope to see you a the next SSSA race.

Mike

[Smitty]

Originally Posted by Mike Pearson

Smitty,

I would put the button back on that you were using when the trans was working right. I have tried some different types of switches. If they dont realease clean it will cause the brake to act up. Did you say you are using a harrington switch. They have only a little movement until it activtes the brake. I have used this type of switch before with good results. I have a terminator button now. Jay Slane still uses the harrington switch with good results. Check your switch with an ohm meter and a volt meter to see if it is realeasing cleanly. Hope to see you a the next SSSA race.

Mike

Thanks Mike, yes I am using a Harrington switch and it seems really sensitive. I am going to do some back tracking after I come from NC and see what the issue is. I hope it is only the switch or wiring issue as I am anxious to see how I stack up against the 327. Your car looked real good this weekend from what I have heard, glad it worked out for you.

Smitty