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MG TD TF 1500 - brake cylinder rebuild

I am in the process of rebuilding the brake cylinders, the advice of a gease gun and bolt trick is really great.
the question i have is how to rehone the bores. i have always used a brake cylinder hone on cast iron. i would think that the stones would load up very fast on the aluminium, would silicon paper and digital dexterity be the best approach? the aluminium does not seem to be pitted there is a brownish scale that scrapes of quite easily. Thank you for your advice Rod
R. W. Zander

I had great success using a flex hone.
mike barnes

I've used a common brake cylinder hone while holding the cylinder under the running fountain of a cleaning tank.

G'day
Blake

Rod, I rubbed the bores lightly with wire wool soaked in detergent - worked just fine. AB
Adrian Bennett

I sawed a slot about 1" long into a 1/4" bolt and wound a strip of fine emery paper into the slot so if nformed a 'S' shape. Then fed it into the bore and spun the bolt in my pedistal drill. With a spot of oil as a lubricant did a first class job.

Just a thought the 'S' has to be back to front otherwise it will unwind as you spin it.


Jan T
jan Targosz

A better solution than trying to hone the aluminium (which is ususally pitted from water ingress) is to take them to your local brake service and have them sleeved with stainless steel sleeves. It is not expensive and you will have "better than new" wheel cylinders. I had all 6 of my wheel cylinders sleeved and have had no problems since.
Phil Stafford

I agree with Phil, dont even bother with honing alum., its a waste of time. Re sleeve is the only way to go.
SS is tough way to go if you can do them yourself as it hard to machine.
I used brass sleeves bonded in with Loctite.
colin stafford

This thread was discussed between 21/03/2003 and 26/03/2003

MG TD TF 1500 index

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