CRG Discussion Forum

Camaro Research Group Discussion => Maintenance => Topic started by: sabino56 on September 03, 2019, 02:26:40 PM

Title: 68 master cylinder rebuild - sanity check on options
Post by: sabino56 on September 03, 2019, 02:26:40 PM
I working to repair brakes on 68 coupe - manual drum all around.
I've read the many, many posts on this, inability to get secondary piston, need to ensure I have RPVs, etc. and just asking for sanity check on options.

I have a 5452310 MC on the car but it's not the right application - an "AB" stamped instead of "BS" and it does not have the RPVs.
I can get the secondary piston from a reman but even if the reman has RPVs I'll need new seats to get them out and it seems seats only come with rebuild kits (minus the secondary piston).  So seems I'd have to buy the rebuild kit (can't find source for Raybestos MK472 anymore - RockAuto doesn't carry it. But I can get it from Napa)  + take the secondary from a reman.  If anyone has recent experience on better sources - I'd appreciate it.

For new MC
I'm not trying to get perfect date coded car restored but I'd like it to look right. I can't stand the new MCs with stupid bold on top and won't put it on my car. I've looked around and Heartbeat City has something which looks reasonable. ClassicIndustries has something which looks like a casting for bleeders but without bleeders so I don't like that one.  If anyone has recent experience on source for reasonable looking manual drum I'd appreciate that too.

I could resleeve - I checked Apple and White Post which have good reviews.  Since the MC I have isn't really correct/original to car anyway, not sure I want to spend the money to preserve it.

Thanks!
Ed
Title: Re: 68 master cylinder rebuild - sanity check on options
Post by: Kelley W King on September 03, 2019, 05:19:53 PM
White Post has my vote. Lifetime warranty.
Title: Re: 68 master cylinder rebuild - sanity check on options
Post by: bertfam on September 03, 2019, 06:36:32 PM
If you have manual drum brakes, you shouldn't have the bleeders anyway. You can either have yours sleeved, go with aftermarket (new or rebuilt), or find the correct BS coded master (without bleeders) and have it sleeved/rebuilt.

Ed
Title: Re: 68 master cylinder rebuild - sanity check on options
Post by: KurtS on September 03, 2019, 09:22:55 PM
Look on ebay, lots of people remove the drum system and will sell the old parts....
Title: Re: 68 master cylinder rebuild - sanity check on options
Post by: z28z11 on September 04, 2019, 01:43:35 AM
If you have the need to drain your wallet some, here's a CT master listing for you that's already done -

https://www.ebay.com/itm/1968-1969-Camaro-Original-Brake-Master-Cylinder-5452310/233215623674?hash=item364cbc01fa:g:qpsAAOSwLOZcy6vi:sc:USPSPriority!37087!US!-1

Plus an MK472 kit -

https://www.ebay.com/itm/1967-1968-1969-CHEVROLET-CAMARO-NEW-BRAKE-MASTER-CYLINDER-KIT-1-USA-MK472-59070/382733294598?epid=75022211&hash=item591cae9c06:g:2jkAAOSwr~9cPk~U

Just sayin' -

Regards,
Steve

Title: Re: 68 master cylinder rebuild - sanity check on options
Post by: sabino56 on September 04, 2019, 02:06:11 PM
Thanks for the advice and comments. Thought I don’t think I’ll pop for that CT coded MC for this car! wow.

I’m leaning towards having White Post resleeve the one I have if I don’t find a reasonable BS coded MC in short time. So far, what I have looks like a better core than what I’ve found and this is not going to be a car I take to have judged - just putting it together to have fun.
Thanks again
Ed