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neilcmusic

Active Member

• Aug 1, 2017

• #1

Quick one . rear drum . I noticed that there were I think 5 holes on outside of drum , these were blocked with old grease and crap , im assuming these are some sort of drain holes ? Please enlighten me

Thanks

 

Last edited: Aug 1, 2017

Blackburn

Well-Known Member

• Aug 1, 2017

• #2

Five seems a lot have seen a couple in mine drilled into outer edge of brake shoe track.

 

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neilcmusic

Active Member

• Aug 1, 2017

• #3

What are they for ?

 

Flossie

Well-Known Member

• Aug 1, 2017

• #4

Let water out.

 

R

RobertP

Active Member

• Aug 1, 2017

• #5

or in

 

blue beasty

Leaks an prone to bits dropping off

• Aug 1, 2017

• #6

Water can get in by the gallon between the drum and backplate.

It's a good idea to give it a easy route out.

 

J

John S

Well-Known Member

• Aug 1, 2017

• #7

Drainage and ventilation.

 

tottot

Well-Known Member

• Aug 1, 2017

• #8

There are 4 holes to let water out when wet and dust out when dry.
When I was trialing my 2a I drilled them out to half an inch to clear the drums quicker.