Does anybody know what the input line size is for the slave cylinder on an '88 BA-10, and/or what size fitting it is? I will not have the vehicle in front of me until next week. I want to be ready with the correct flaring tool and a new coupler and fittings when it arrives as I really don't have the time right now to do the job again. I'm willing to cut the slave line and install a new fitting to avoid replacement if there's enough room to work.

Long story short, I did a clutch job w/master cylinder in a friend's '88 a few weeks ago and I thought the connection to the line from the master was a little suspect but let it roll. Naturally, it's got a dry master cylinder a week and half later.

The steel line coming from the MC ends in a coupler, into which the slave threads. All of the vehicle-side line and fittings look great. It looked like there might be a very small leak on the slave side of the connection on installation, and I thought the flare on the slave was kind of crappy as well, and now here I am.

 

All I can offer is that on the external clutch slave on my 84, the line seems to be the same as the brake lines.

 

4.0 ? Cut line reuse fitting .

 

Thanks all. Yes, 4.0, and it was 1/4." The slave flare was terrible and had gouged the coupler. Replaced the coupler and re-flared without cutting the old one off. It's sealed up tight now.