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Title: Brake Master Cylinder Post by: oldgrey58 on February 13, 2019, 09:06:50 PM Hi all,
I am trying to put period original master cylinders in my FC but the brake master cylinder I have has a part number I can't find in the master parts book. The number on the cylinder is 7409631. Anyone had this before? Title: Re: Brake Master Cylinder Post by: Stewy on February 13, 2019, 09:45:07 PM My 48-EK master parts catalogue lists under section 4.650 Cylinder assembly, body and reservoir - Brake main
Body …….. FE,FC,FB,EK …….. 7409631 Cheers Stewy 8) Title: Re: Brake Master Cylinder Post by: ardiesse on February 13, 2019, 09:46:07 PM Yes.
Part number 7409631 is listed in the 1957 master parts catalogue in section 4.650 as "body". The complete cylinder assembly goes under the number 7409947. The cylinder will have been revised a couple of times in its history. You might find others (except HD/HR wider flange and plastic reservoir cylinders) with 741 or 742 part numbers. Rob Title: Re: Brake Master Cylinder Post by: DJ on February 13, 2019, 10:09:28 PM Holden 48-HR parts catalogue shows the replaced part number at that time ....... (https://i.imgur.com/MC2A6w4.jpg) Title: Re: Brake Master Cylinder Post by: oldgrey58 on February 14, 2019, 12:36:57 PM Thanks guys - much appreciated. It means I can use the one I've got.
Title: Re: Brake Master Cylinder Post by: Errol62 on February 14, 2019, 02:33:39 PM Bear in mind that the later cylinders will not take the early tin reservoirs. The thread diameter was decreased and only takes the plastic ones. You could possibly make up your own tin ones of course.
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