Released the 2nd Coast Brake piston by mistake

GRYPHN

MEMBER
1993 LEXUS SC 400
90,000 MILES

Hi
Got my transmission on the bench after installing a new valvebody solenoids and new accumulators.

Put it all together, today in a momentary lapse of concentration I released the snap ring and cover that hold in the 2nd coast brake piston and rod.

Is there anyway I can put this back in without opening the transmission up.

Can I just press the piston in with a press and install the snap ring, or am I forced to go in and release the brake band inside prior to putting the piston back in.

Many many thanks.

5 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

SEE PICS FOR INFORMATION, I HOPE THIS IS OF HELP.

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Sunday, April 22nd, 2012 AT 12:43 PM

GRYPHN

MEMBER
3 POSTS

Thanks for the image, but this is the piston rod that pushes on the b2 coast brake band.

I removed the piston and piston rod from the outside of the trans. Can I just use a press to insert it against the band and clip the snap ring as above, or will I have to go in and release the band pin, insert the coast brake piston and then pin the band back into place

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Sunday, April 22nd, 2012 AT 1:04 PM

MHPAUTOS

MECHANIC
31,937 POSTS

Ok my error, see pic for details, trouble is that they shoe the assembly during a full re build and not in the position you find your self, you may have to contact a transmission specialist for more details, the pic mentioned in the text is the same as you posted.

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